Netgear GS348T, GS324TP User guide

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Page 1

User Manual

S350 Series 24-Port (PoE+) and 48-Port Gigabit Ethernet Smart Switches with 2 or 4 SFP Ports

Models GS324T GS324TP GS348T

September 2021 202-11910-04

NETGEAR, Inc. 350 East Plumeria Drive San Jose, CA 95134, USA

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S350 Series 24-Port (PoE+) and 48-Port Gigabit Ethernet Smart Switches

Support and Community

Visit netgear.com/support to get your questions answered and access the latest downloads.

You can also check out our NETGEAR Community for helpful advice at

community.netgear.com.

Regulatory and Legal

Si ce produit est vendu au Canada, vous pouvez accéder à ce document en français canadien à https://www.netgear.com/support/download/.

(If this product is sold in Canada, you can access this document in Canadian French at https://www.netgear.com/support/download/.)

For regulatory compliance information including the EU Declaration of Conformity, visit https://www.netgear.com/about/regulatory/.

See the regulatory compliance document before connecting the power supply.

For NETGEAR's Privacy Policy, visit

By using this device, you are agreeing to NETGEAR's Terms and Conditions at https://www.netgear.com/about/terms-and-conditions. If you do not agree, return the device to your place of purchase within your return period.

Do not use this device outdoors. For products that support Power over Ethernet (PoE), the PoE source is intended

a building connection only.

for intr

Applicable to 6 GHz devices only: Only use the device indoors. The operation of 6 GHz devices is prohibited on oil

tforms, cars, trains, boats, and aircraft, except that operation of this device is permitted in large aircraft while

pla flying above 10,000 feet. Operation of transmitters in the 5.925-7.125 GHz band is prohibited for control of or communications with unmanned aircraft systems.

This switch is designed for indoor use only. If you want to connect to a device located outdoors, the outdoor device must be pr the switch and the outdoor device. Failure to do so can damage the switch.

WARNING: Befor

safety and warranty information.

operly grounded and surge protected, and you must install an Ethernet surge protector inline between

e connecting this switch to outdoor cables or devices, see https://kb.netgear.com/000057103 for

https://www.netgear.com/about/privacy-policy.

Trademarks

Revision History

Publication Part Number

202-11910-04 September 2021 We removed “Managed Pro” from the product name.

202-11910-03 August 2021 We changed

202-11910-02 April 2019 We made very minor changes and corrections.

202-11910-01 March 2019 First publication.

Publish Date Comments

We changed We removed information about the Insight app.

Access the Local Browser Interface on page 18. Configure CoS Interface Settings for an Interface on page 186.

User Manual2

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Chapter 1 Get Started

Available Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Switch Management and Discovery Overview . . . . . . . . . . . . . . . . . . . . . . .11

Options to Change the Default IP Address of the Switch . . . . . . . . . . . . . . 11

Discover or Change the Switch IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Discover the Switch in a Network With a DHCP Server. . . . . . . . . . . . . .12

Discover the Switch in a Network Without a DHCP Server. . . . . . . . . . .13

Use the NETGEAR Switch Discovery Tool to Access the Switch. . . . . . .15

Configure a Static IP Address From a Directly Connected Computer .16

About the User Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Software Requirements to Use the Local Browser Interface. . . . . . . . . .17

Supported Web Browsers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Access the Local Browser Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Navigation Tabs, Configuration Menus, and Page Menu . . . . . . . . . . . .20

Configuration and Status Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Buttons in the Local Browser Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . .21

User-Defined Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Change the Language of the Local Browser Interface . . . . . . . . . . . . . . . . . 22

Use the Device View of the Local Browser Interface . . . . . . . . . . . . . . . . . . . 22

Power LED in the Device View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Fan LED in the Device View (Models GS324TP and GS348T) . . . . . . . .24

PoE Max LED in the Device View (Model GS324TP) . . . . . . . . . . . . . . . .25

Interface Naming Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Configure Interface Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Context-Sensitive Help and Access to the Support WebSite . . . . . . . . . . . 28

Access the User Manual Online . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Chapter 2 Configure System Information

View and Configure the Switch Management Settings. . . . . . . . . . . . . . . .32

View or Define System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

View the System CPU Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Configure the IP Network and VLAN Settings for the

Local Browser Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Change the Management VLAN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Configure the Time Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Configure Denial of Service Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Configure DNS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

Configure Green Ethernet Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

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S350 Series 24-Port (PoE+) and 48-Port Gigabit Ethernet Smart Switches

Use the Device View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Configure PoE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

Configure the Global PoE Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

Configure the PoE Port Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

Configure SNMP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Configure the SNMPv1/v2 Community . . . . . . . . . . . . . . . . . . . . . . . . . . .77

Configure SNMPv1/v2 Trap Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

Configure SNMPv1/v2 Trap Flags. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

View the Supported MIBs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83

Configure SNMP V3 Users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

Configure LLDP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

Configure LLDP Global Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

Configure LLDP Port Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

View the LLDP-MED Network Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Configure LLDP-MED Port Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

View the LLDP-MED Neighbors Information. . . . . . . . . . . . . . . . . . . . . . .91

View the Local Information Advertised Through LLDP . . . . . . . . . . . . . .93

View LLDP Neighbors Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

Configure DHCP Snooping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Configure the Global DHCP Snooping Settings . . . . . . . . . . . . . . . . . . .99

Enable DHCP for All Interfaces in a VLAN . . . . . . . . . . . . . . . . . . . . . . . 100

Configure DHCP Snooping Interface Settings . . . . . . . . . . . . . . . . . . . 101

Configure Static DHCP Bindings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Configure DHCP Snooping Persistent Settings . . . . . . . . . . . . . . . . . . 104

View or Clear DHCP Snooping Statistics . . . . . . . . . . . . . . . . . . . . . . . . 105

Set Up PoE Timer Schedules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

Create a PoE Timer Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Specify the Settings for an Absolute PoE Timer Schedule . . . . . . . . . 107

Specify the Settings for a Recurring PoE Timer Schedule. . . . . . . . . . 108

Change the Settings for a Recurring PoE Timer Schedule Entry . . . . 110

Delete a PoE Timer Schedule Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Delete a PoE Timer Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Chapter 3 Configure Switching

Configure the Port Settings and Maximum Frame Size . . . . . . . . . . . . . . 114

Configure Link Aggregation Groups. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117

Configure LAG Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Configure LAG Membership . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Set the LACP System Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Set the LACP Port Priority Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Configure VLANs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Configure VLAN Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Configure VLAN Membership. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

View the VLAN Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Configure Port PVID Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Configure a MAC-Based VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Configure Protocol-Based VLAN Groups . . . . . . . . . . . . . . . . . . . . . . . 133

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S350 Series 24-Port (PoE+) and 48-Port Gigabit Ethernet Smart Switches

Configure Protocol-Based VLAN Group Membership . . . . . . . . . . . . 134

Configure a Voice VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135

Configure Auto-VoIP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137

Configure Protocol-Based Port Settings for VoIP . . . . . . . . . . . . . . . . . 137

Configure Auto-VoIP OUI-Based Properties . . . . . . . . . . . . . . . . . . . . . 139

Configure the OUI-Based Port Settings . . . . . . . . . . . . . . . . . . . . . . . . . 140

Manage the OUI Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Display the Auto-VoIP Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Configure Spanning Tree Protocol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143

Configure the STP Settings and View the STP Status. . . . . . . . . . . . . . 144

Configure and View the CST Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Configure and View the CST Port Settings . . . . . . . . . . . . . . . . . . . . . . 148

View the CST Port Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

View Rapid STP Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Manage MST Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Configure and View the Port Settings for an MST Instance. . . . . . . . . 155

View the STP Statistics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Configure Multicast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .159

View, Search, or Clear the MFDB Table . . . . . . . . . . . . . . . . . . . . . . . . . 159

View the MFDB Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Configure the Auto-Video Multicast Settings . . . . . . . . . . . . . . . . . . . . 161

About IGMP Snooping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

Configure IGMP Snooping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Configure IGMP Snooping for Interfaces . . . . . . . . . . . . . . . . . . . . . . . 164

View, Search, or Clear the IGMP Snooping Table . . . . . . . . . . . . . . . . 166

Configure IGMP Snooping for VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Modify IGMP Snooping Settings for a VLAN. . . . . . . . . . . . . . . . . . . . . 168

Disable IGMP Snooping on a VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Configure a Multicast Router Interface . . . . . . . . . . . . . . . . . . . . . . . . . 169

Configure a Multicast Router VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

IGMP Snooping Querier Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Configure an IGMP Snooping Querier . . . . . . . . . . . . . . . . . . . . . . . . . 172

Configure an IGMP Snooping Querier for VLANs . . . . . . . . . . . . . . . . 173

Display IGMP Snooping Querier for VLAN Status . . . . . . . . . . . . . . . . 174

View, Search, and Manage the MAC Address Table . . . . . . . . . . . . . . . . . .175

View, Search, or Clear the MAC Address Table . . . . . . . . . . . . . . . . . . 176

Set the Dynamic Address Aging Interval. . . . . . . . . . . . . . . . . . . . . . . . 177

Add a Static MAC Address to the MAC Address Table . . . . . . . . . . . . 178

Configure Layer 2 Loop Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .179

Configure Global Layer 2 Loop Protection . . . . . . . . . . . . . . . . . . . . . . 179

View and Configure Layer 2 Loop Protection on a Port. . . . . . . . . . . . 180

Chapter 4 Configure Quality of Service

Quality of Service Concepts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Manage Class of Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .184

CoS Configuration Concepts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Configure Global CoS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

Configure CoS Interface Settings for an Interface . . . . . . . . . . . . . . . . 186

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S350 Series 24-Port (PoE+) and 48-Port Gigabit Ethernet Smart Switches

Configure CoS Queue Settings for an Interface. . . . . . . . . . . . . . . . . . 188

Map 802.1p Priorities to Queues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Map DSCP Values to Queues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

Manage Differentiated Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192

Defining DiffServ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Configure and Display Global DiffServ Settings. . . . . . . . . . . . . . . . . . 193

Configure a DiffServ Class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Configure a DiffServ Policy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

Configure the DiffServ Service Interface . . . . . . . . . . . . . . . . . . . . . . . . 205

View DiffServ Service Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

Chapter 5 Manage Device Security

Configure the Management Security Settings . . . . . . . . . . . . . . . . . . . . . 210

Change the Password for the Local Browser Interface . . . . . . . . . . . . 210

Manage the RADIUS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Configure TACACS+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Configure Authentication Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

Manage the Smart Control Center Utility . . . . . . . . . . . . . . . . . . . . . . . 227

Configure Management Access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .227

Configure HTTP Access Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

Configure HTTPS Access Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

Manage Certificates for HTTPS Access . . . . . . . . . . . . . . . . . . . . . . . . . 230

Transfer an Existing Certificate to the Switch . . . . . . . . . . . . . . . . . . . . 232

Manage Access Control to the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 234

Configure Port Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .240

Configure Global 802.1X Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240

Manage Port Authentication on Individual Ports . . . . . . . . . . . . . . . . . 242

View the Port Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

View the Client Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Set Up Traffic Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

Manage MAC Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

MAC Filter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251

Configure Storm Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252

Manage Port Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256

Configure Protected Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Configure Access Control Lists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .261

Use the ACL Wizard to Create a Simple ACL . . . . . . . . . . . . . . . . . . . . 261

Configure a Basic MAC ACL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

Configure MAC ACL Rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268

Configure MAC Bindings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272

View or Delete MAC ACL Bindings in the MAC Binding Table . . . . . 274

Configure a Basic or Extended IP ACL. . . . . . . . . . . . . . . . . . . . . . . . . . 275

Configure Rules for a Basic IP ACL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278

Configure Rules for an Extended IP ACL . . . . . . . . . . . . . . . . . . . . . . . . 282

Configure IP ACL Interface Bindings . . . . . . . . . . . . . . . . . . . . . . . . . . . 289

View or Delete IP ACL Bindings in the IP ACL Binding Table . . . . . . . 291

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S350 Series 24-Port (PoE+) and 48-Port Gigabit Ethernet Smart Switches

Chapter 6 Monitor the System

Monitor the Switch and the Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

View Switch Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

View Port Statistics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297

View and Manage Detailed Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . 300

View or Clear EAP and EAPoL Statistics. . . . . . . . . . . . . . . . . . . . . . . . . 306

Perform a Cable Test (Model GS348T) . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Configure and View Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .309

Manage the Memory Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309

Manage the Flash Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311

Manage the Server Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

View or Clear the Trap Logs and Counters . . . . . . . . . . . . . . . . . . . . . . 316

View or Clear the Event Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Configure Port Mirroring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Chapter 7 Maintenance

Reboot the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

Reset the Switch to Its Factory Default Settings . . . . . . . . . . . . . . . . . . . . 324

Export a File From the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .325

Use TFTP to Export a File From the Switch to a TFTP Server . . . . . . . 325

Use HTTP to Export a File from the Switch to a Computer. . . . . . . . . 326

Download a File to the Switch or Update the Firmware. . . . . . . . . . . . . . .327

Use TFTP to Download a File to the Switch or Update the

Software Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

Use HTTP to Download a File to the Switch or Update the

Software Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330

Manage Software Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .332

Copy a Software Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

Configure Dual Image Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333

View the Dual Image Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335

Enable Remote Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336

Appendix A Configuration Examples

Virtual Local Area Networks (VLANs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

VLAN Configuration Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339

Access Control Lists (ACLs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .340

MAC ACL Sample Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340

Standard IP ACL Sample Configuration. . . . . . . . . . . . . . . . . . . . . . . . . 341

Differentiated Services (DiffServ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .342

Class. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343

DiffServ Traffic Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344

Creating Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344

DiffServ Example Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345

802.1X Access Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .346

802.1X Example Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

Multiple Spanning Tree Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .349

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MSTP Example Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351

Appendix B Specifications and Default Settings

Switch Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354

General Feature Default Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .355

System Setup and Maintenance Settings . . . . . . . . . . . . . . . . . . . . . . . . . . .361

Port Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .361

Traffic Control Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .362

Quality of Service Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .362

Security Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .363

System Management Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .363

Settings for Other Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .364

Hardware Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .364

User Manual8

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1Get Started

This user manual describes how you can configure and operate the NETGEAR S350 Series 24-Port (PoE+) and 48-Port Gigabit Ethernet Smart Switches with 2 or 4 SFP Ports by using the local browser–based management interface.

The manual describes the software configuration procedures and explains the options that are

available within those procedures for the following models:

• GS324T. S350 Series 24-Port Gigabit Ethernet Smart Switch with 2 SFP Ports

• GS324TP. S350 Series 8-Port Gigabit PoE+ Ethernet Smart Switch with 2 SFP Ports

• GS348T. S350 Series 48-Port Gigabit Ethernet Smart Switch with 4 SFP Ports

This chapter provides an overview of how you can start your switch and access the local

browser–based management interface.

The chapter contains the following sections:

• Available Publications

• Switch Management and Discovery Overview

• Options to Change the Default IP Address of the Switch

• Discover or Change the Switch IP Address

• About the User Interfaces

• Access the Local Browser Interface

• Navigation Tabs, Configuration Menus, and Page Menu

• Change the Language of the Local Browser Interface

• Use the Device View of the Local Browser Interface

• Interface Naming Conventions

• Configure Interface Settings

• Context-Sensitive Help and Access to the Support WebSite

• Access the User Manual Online

• Register Your Product

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Note: In this manual, the local browser–based management interface is

referred to as the local browser interface.

Note: For more information about the topics covered in this manual, visit the

support website at netgear.com/support.

Note: Firmware updates with new features and bug fixes are made available

from time to time at products can regularly check the site and download new firmware, or you can check for and download new firmware manually. If the features or behavior of your product does not match what is described in this guide, you might need to update your firmware.

netgear.com/support/download/. Some

Available Publications

The following guides are available at netgear.com/support/download/:

• Installation Guide

• Hardware Installation Guide

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Switch Management and Discovery Overview

The switch provides administrative management options that let you configure, monitor, and control the network. Using the local browser interface, you can configure the switch and the network, including the ports, the management VLAN, VLANs for traffic control, link aggregation for increased bandwidth, quality of service (QoS) for prioritizing traffic, and network security.

Initial discovery of the switch on the network requires one of the following tools:

• NETGEAR Smart Control Center (SCC) program. The SCC runs on a Windows-based computer. You can download the SCC program from For more information about the SCC program see Discover the Switch in a Network With

a DHCP Server on page 12 and Discover the Switch in a Network Without a DHCP Server on page 13.

• NETGEAR Switch Discovery Tool. If you use a Mac computer, you can use the NETGEAR Switch Discovery Tool to discover the switch in your network and access the local browser interface of the switch. For more information about the Switch Discovery Tool,

Use the NETGEAR Switch Discovery Tool to Access the Switch on page 15.

netgear.com/support/download/.

You can also get the IP address of the switch from the DHCP server in the network or use an IP scanner utility.

After discovery, you can configure the switch using the local browser interface for advanced setup and configuration of features, or the SCC program for very basic setup. For more information, see the SCC user manual, which you can download from netgear.com/support/download/.

Options to Change the Default IP Address of the Switch

To enable remote management of the switch through a web browser or SNMP, connect the switch to the network and specify an IP address, subnet mask, and default gateway. The switch default IP address is 192.168.0.239 and the default subnet mask is 255.255.255.0.

To change the default IP address of the switch, use one of the following methods:

• Dynamic assignment through DHCP. DHCP is enabled on the switch by default. If you connect the switch to a network with a DHCP server, the switch obtains its network information automatically. You can use the Smart Control Center to discover the

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automatically assigned network information. For more information, see Discover the Switch in a Network With a DHCP Server on page 12.

• Static assignment through the Smart Control Center. If you connect the switch to a network that does not include a DHCP server, you can use the Smart Control Center to assign a static IP address, subnet mask, and default gateway. For more information, see Discover the Switch in a Network Without a DHCP Server on page 13.

• Static assignment by connecting from a local host. If you do not want to use the Smart Control Center to assign a static address, you can connect to the switch from a computer in the 192.168.0.0/24 network and change the settings by using the local browser interface on the switch. For information about how to set the IP address on the computer so that it is in the same subnet as the default IP address of the switch, see Configure a Static IP Address From a Directly Connected Computer on page 16.

Discover or Change the Switch IP Address

The following sections describe methods that let you discover or change the IP address of the switch.

Discover the Switch in a Network With a DHCP Server

This section describes how to set up your switch in a network that includes a DHCP server. The DHCP client on the switch is enabled by default. When you connect the switch to your network, the DHCP server automatically assigns an IP address to the switch. Use the Smart Control Center (SCC) to discover the IP address automatically assigned to the switch.

Note: For more information about the SCC program, see the SCC user manual,

which you can download by visiting netgear.com/support/download/.

To install the switch in a network with a DHCP server:

1. Connect the switch to a network with a DHCP server.

2. Power on the switch by connecting its power cord.

3. Install the Smart Control Center on your computer.

4. Start the Smart Control Center.

5. Click the Discover button for the Smart Control Center to discover all the devices in the

subnet.

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6. Make a note of the displayed IP address assigned by the DHCP server.

You can use this IP address later to access the switch directly from a web browser (that is, without using the Smart Control Center).

7. Select your switch by clicking the line that displays the switch.

8. Click the We

The Smart Control Center launches a browser that displays the login page of the selected device.

Use your web browser to manage your switch. The default password is password. For more information about the page layout and options, see Menus, and Page Menu on page 20.

b Browser Access button.

Navigation Tabs, Configuration

Discover the Switch in a Network Without a DHCP Server

This section describes how to use the Smart Control Center (SCC) to set up your switch in a network without a DHCP server. If your network does not include a DHCP service, you must assign a static IP address to your switch.

If you prefer, you can assign the switch a static IP address even if your network does include a DHCP server

Note: For more information about the SCC program, see the SCC user manual,

which you can download by visiting netgear.com/support/download/.

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To assign a static IP address:

1. Connect the switch to your existing network.

2. Power on the switch by connecting its power cord.

3. Install the Smart Control Center on your computer

4. Start the Smart Control Center.

5. Click the Discover button for the Smart Control Center to find your switch.

The utility broadcasts Layer 2 discovery packets within the broadcast domain to discover the switch.

6. Select the switch, and then click the Configure Device button.

The page expands to display additional fields at the bottom.

7. Select the Disabled radio button.

DHCP is disabled.

8. Enter the static switch IP address, gateway IP address, and subnet mask for the switch.

9. Type your password to continue with the configuration change.

Tip: Y

ou must enter the current password each time that you use the Smart Control Center to update the switch settings. The default password is password.

10. Click the Apply button.

Your settings are saved.

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Use the NETGEAR Switch Discovery Tool to Access the Switch

For easiest access, we recommend that you cable the switch to a network with a router or DHCP server that assigns IP addresses, power on the switch, and then use a computer that is connected to the same network as the switch.

The NETGEAR Switch Discovery Tool lets you discover the switch in your network and access the local browser interface of the switch from a Mac or a 64-bit Windows-based computer.

To install the NETGEAR Switch Discovery Tool, discover the switch in your network, and access the local browser interface of the switch:

1. Download the Switch Discovery Tool by visiting

netgear.com/support/product/netgear-switch-discovery-tool.aspx.

Depending on the computer that you are using, download either the Mac version or the version for a 64-bit Windows-based computer.

2. Temporarily disable the firewall, Internet security, antivirus programs, or all of these on the computer that you use to configure the switch.

3. Unzip the Switch Discovery Tool files, double-click the .exe or .dmg file (for example,

NETGEAR+Switch+Discovery+Tool+Setup+1.2.101.exe or NetgearSDT-V1.2.101.dmg), and install the program on your computer.

The installation process places a NETGEAR Switch Discovery Tool icon on your desktop.

4. Reenable the security services on your computer.

5. Power on the switch.

The DHCP server assigns the switch an IP address.

6. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection. The computer and the switch must be on the same Layer 2 network.

7. Open the Switch Discovery Tool.

To open the program, double-click the NETGEAR Switch Discovery Tool icon on your desktop.

The initial page displays a menu and a button.

8. From the Choose a connection menu, select the network connection that allows the Switch Discovery Tool to access the switch.

9. Click the Start Searching button.

The Switch Discovery Tool displays a list of Smart Managed Plus Switches that it discovers on the selected network.

For each switch, the tool displays the IP address.

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10. To access the local browser interface of the switch, click the ADMIN PAGE button.

The login page of the local browser interface opens.

11. Enter the switch password.

The default password is password. The password is case-sensitive.

The Switch Information page displays.

Configure a Static IP Address From a Directly Connected Computer

If you do not want to use the Smart Control Center to configure the network information on the switch, you can change the IP address of the switch by connecting an Ethernet cable from a computer to the switch.The IP address of the computer must be in the same subnet as the default IP address on the switch. For most networks, this means that you must change the IP address of the computer to be on the same subnet as the default IP address of the switch (192.168.0.239).

To configure a static IP address on the switch:

1. Change the IP settings of your computer to be in the same subnet as the IP settings of

the switch.

If the DHCP client of the switch is enabled and you remove the switch from the network with the DHCP server, the IP address reverts to the default IP address of 192.168.0.239 with a subnet of 255.255.255.0.

Note: If you already disabled the DHCP client and assigned a static IP

address to the switch, change the IP settings of your computer to be in the same subnet as the static IP address.

For more information about changing the IP settings on your computer, see one of the following knowledge base articles at the NETGEAR website:

• Windows-based computer. See the following article:

https://kb.netgear.com/27476/How-to-set-a-static-IP-address-in-Windows

• Mac. See the following article:

https://kb.netgear.com/000037250/Setting-a-static-IP-address-on-your-network-a dapter-in-Mac-OS-for-direct-access-to-an-access-point

(The Mac article is written for an access point but is also valid for a switch.)

2. Connect your computer to the switch using an Ethernet cable.

3. Power on the switch by connecting its power cord.

4. Launch a web browser.

5. In the address field of your web browser, enter the IP address of the switch.

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If you did not disable the DHCP client and assigned a static IP address to the switch, enter 192.168.0.239.

The login window opens.

6. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

7. Select System > Management > IP Configuration.

The IP Configuration page displays.

8. Select the Static IP Address radio button.

9. Configure the IP address, subnet mask, and default gateway to be assigned to the switch.

10. Click the Apply button.

Your settings are saved.

Disconnect the Ethernet cable and return the network configuration on your computer to the original settings.

About the User Interfaces

The switch software includes a set of comprehensive management functions for configuring and monitoring the system by using one of the following methods:

• Local browser interface (which used to be referred to as the web interface)

• Simple Network Management Protocol (SNMP)

Each of the standards-based management methods allows you to configure and monitor the components of the switch software. The method you use to manage the system depends on your network size and requirements, and on your preference.

This manual describes how to use the local browser interface to manage and monitor the system.

Software Requirements to Use the Local Browser Interface

To access the switch by using a web browser, the browser must meet the following software requirements:

• HTML version 4.0, or later

• HTTP version 1.1, or later

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Supported Web Browsers

The following browsers were tested and support the local browser interface. Later browser versions might function fine but were not tested. The supported web browsers include the following:

• Microsoft Internet Explorer (IE) version 11

• Microsoft Edge

• Mozilla Firefox versions 64

• Chrome version 62

• Safari on MAC OS X version 11.0

Access the Local Browser Interface

You must be able to ping the IP address of the switch from your computer for web access to be available. If you used the Smart Control Center to set up the IP address and subnet mask, either with or without a DHCP server, use that IP address in the address field of your web browser. If you did not change the IP address of the switch from the default value, enter

192.168.0.239 in the address field.

You can use one of the following methods to access the switch local browser interface:

• From the Smart Control Center, select the switch and click the Web Browser Access button.

• From the Switch Discovery Tool, select the switch and click the ADMIN PAGE button.

• Open a web browser and enter the IP address of the switch in the address field.

If you use any of these methods, the switch Login window displays.

To access the switch local browser interface from a web browser:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

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4. If the browser does not display the login window, do the following:

• If your browser displays a security warning, dismiss the warning by doing one of the

following

- Google Chrome. Click the ADVANCED link. Then, click the Proceed to x.x.x.x (unsafe) link, in which x.x.x.x represents the domain name or IP address of the

device.

- Apple Safari. Click the Show Details button. Then, click the visit this website link. If a warning pop-up window displays, click the Visit Website button. If another pop-up window displays to let you confirm changes to your certificate trust settings, enter your Mac user name and password and click the Update

Setting button.

- Mozilla Firefox. Click the ADVANCED button. Then, click the Add Exception

button. In the pop-up window that displays, click the Confirm Security Exception button.

- Microsoft Edge: Select Details > Go on to the webpage.

- Microsoft Internet Explorer. Click the Continue to this website (not recommended) link.

• If you use a wired Ethernet connection, make sure that the computer is connected to

the same network that the switch is attached to or directly to one of the LAN Ethernet ports of the switch.

• If you use a mobile device, make sure that mobile device is connected to an access point that is attached to the same network that the switch is connected to or that the access point is directly attached to one of the LAN Ethernet ports of the switch.

• Make sure that the switch is receiving power and that its Power LED is lit.

• Close and reopen the browser.

5. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

The following figure shows the layout of the local browser interface.

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Navigation tabs

Page menu

Configuration menus

Logout button

Language menu

Help page

Buttons

Configuration status and options

Navigation Tabs, Configuration Menus, and Page Menu

The navigation tabs along the top of the local browser interface give you quick access to the various switch functions. The tabs are always available and remain constant, regardless of which feature you configure.

When you select a tab, the features for that tab appear as menus directly under the tabs. The configuration menus in the blue bar change according to the navigation tab that is selected.

The configuration pages for each feature are available as submenu links in the page menu on the left side of the page. Some items in the menu expand to reveal multiple submenu links, as the following figure shows.

Link

Submenu

links

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Configuration and Status Options

The area directly under the configuration menus and to the right of the links displays the configuration information or status for the page you select. On pages that contain configuration options, you might be able to enter information into fields, select options from menus, select check boxes, and select radio buttons.

Each page contains access to the HTML-based help that explains the fields and configuration options for the page.

Buttons in the Local Browser Interface

Each page also contains command buttons. The following table shows the command buttons that are used throughout the pages in the local browser interface:

Table 1. Command buttons in the local browser interface

Button Function

Add Clicking the Add button adds the new item configured in the heading row of a table.

Apply Clicking the Apply button to save your settings. Configuration changes take ef

Cancel Clicking the Cancel button cancels the configuration on the page and resets the data on the page

to the previous values of the switch.

Delete Clicking the Delete button removes the selected item.

Refresh Clicking the Refresh button refreshes the page with the latest information from the device.

Logout Clicking the Logout button ends the session.

fect immediately.

User-Defined Fields

User-defined fields can contain 1 to 159 characters, unless otherwise noted on the configuration web page. All characters can be used except for the ones stated in the following table (unless specifically noted in a procedure for a feature).

Table 2. Invalid characters for user-defined fields

Invalid Characters for user-defined fields

\ <

/ >

* |

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Change the Language of the Local Browser Interface

By default, the language is set to Auto. You can set the language to a specific one.

To change the language of the local browser interface:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. At the top of the page, to the left of Welcome, select a language from the language menu.

A confirmation pop-up window opens.

6. Click the OK button to confirm.

The switch restarts and you must log in again.

The language of the local browser interface is now set to the language that you selected.

Use the Device View of the Local Browser Interface

The Device View displays the ports on the switch. This graphic tool provides an alternate way to navigate to configuration and monitoring options. The graphic tool also provides information about device ports, configuration and status, tables, and feature components.

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To use Device View:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

f-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser

, enter the IP address of the switch.

If you do not know the IP address of the switch, see

Discover or Change the Switch IP

Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Device V

iew.

The Device View page displays.

The following figure shows the Device View page for model GS324TP.

Depending upon the link status of the port, both the port and the associated port LED display green, yellow, or black:

• Green. The port is linking at a speed of 1 Gbps.

• Yellow.

The port is linking at a speed of 10 Mbps or 100 Mbps.

• Black or gray. No link is present.

For models GS324T and GS324TP, the associated port LED is at the upper left of the panel. For model GS348T

, the associated port LED is above the port.

For model GS324TP, depending on the PoE status of the port, the associated PoE LED at the lower left of the panel is either green, yellow, or black:

• Green. The port is delivering PoE power.

• Yellow.

• Black or gray.

A PoE fault occurred.

The port is not delivering PoE power.

6. Click a port to open a menu that displays statistics and configuration options.

You can select a menu option to access the page that contains the configuration or monitoring options.

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If you right-click the graphic, but do not right-click a specific port, the main menu displays. This menu contains the same options as the navigation tabs at the top of the page.

The following figure shows the details on the Device View page for model GS324TP.

Right-click the specific port that you want to view or configure to see a menu that displays statistics and configuration options. Select the menu option to access the page that contains the configuration or monitoring options.

The system LEDs are located on the left side of the front panel.

Power LED in the Device View

The Power LED is a bicolor LED that serves as an indicator of the power and diagnostic status:

• Solid green. The switch is powered on and operating normally.

• Solid yellow.

• Off. Power is not supplied to the switch.

The switch is booting.

Fan LED in the Device View (Models GS324TP and GS348T)

The Fan LED serves as an indicator of the fan and diagnostic status:

• Off.

• Solid yellow.

The fan is operating normally.

A problem occurred with the fan.

Note: Model GS324T does not include a fan.

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PoE Max LED in the Device View (Model GS324TP)

The PoE Max LED indicates the following status:

• Off. Suf

• Solid yellow. Less than 7W of PoE power is available.

• Blinking yellow.

power was available.

ficient (more than 7W of) PoE power is available.

At least once during the previous two minutes, less than 7W of PoE

Interface Naming Conventions

The switch supports physical and logical interfaces. Interfaces are identified by their type and the interface number. The physical ports are Gigabit interfaces and are numbered on the front panel. You configure the logical interfaces by using the software.

The following table describes the naming convention for all interfaces available on the switch.

Table 3. Naming conventions for interfaces

Interface Description Example

Physical The physical ports are Gigabit Ethernet interfaces and are

numbered sequentially starting from 1.

Link aggregation group (LAG) LAG interfaces are logical interfaces that are used only for

bridging functions.

g1, g2, g12

l1, l2, l3

CPU management interface This is the internal switch interface that is associated with the

switch base MAC address. and is always listed in the MAC Address Table.

The interface is not configurable

Configure Interface Settings

For some features that allow you to configure interface settings, you can apply the same settings simultaneously to any of the following:

• A single port

• Multiple ports

• All ports

• A single LAG

• Multiple LAGs

• All LAGs

• Multiple ports and LAGs

• All ports and LAGs

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Many of the pages that allow you to configure or view interface settings include links to display all ports, all LAGs, or all ports and LAGs on the page.

Use these links as follows:

• To display all ports, click the 1 link.

• To display all LAGs, click the LAG link.

• To display all ports and LAGs, click the All link.

The procedures in this section describe how to select the ports and LAGs to configure. The procedures assume that you are already logged in to the switch. If you do not know how to log in to the switch, see

Access the Local Browser Interface on page 18.

To configure a single port by using the Go To Interface field:

1. Ensure that the page is displaying all ports, and not only the LAGs.

2. In the Go To Interface field, type the port number.

For example, type g4.

For more information, see Interface Naming Conventions on page 25.

3. Click the Go button.

The check box associated with the interface is selected, the row for the selected interface is highlighted, and the interface number displays in the heading row.

4. Configure the desired settings.

5. Click the Apply button.

Your settings are saved.

To configure a single LAG by using the Go To Interface field:

1. Click the LAG link or the All link to display the LAGs.

2. In the Go To Interface field, type the LAG number, for example l3.

For information, see Interface Naming Conventions on page 25.

3. Click the Go button.

The check box associated with the interface is selected, the row for the selected interface is highlighted, and the interface number appears in the heading row.

4. Configure the desired settings.

5. Click the Apply button.

Your settings are saved.

To configure a single port:

1. Ensure that the page is displaying all ports, and not only the LAGs.

2. Select the check box next to the port number.

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The row for the selected interface is highlighted, and the interface number appears in the heading row.

3. Configure the desired settings.

4. Click the Apply button.

Your settings are saved.

To configure a single LAG:

1. Click the LAG link or the All link to display the LAGs.

2. Select the check box next to the LAG number.

The row for the selected interface is highlighted, and the interface number appears in the heading row.

3. Configure the desired settings.

4. Click the Apply button.

Your settings are saved.

To configure multiple ports:

1. Ensure that the page is displaying all ports, and not only the LAGs.

2. Select the check box next to each port to configure.

The row for each selected interface is highlighted.

3. Configure the desired settings.

4. Click the Apply button.

Your settings are saved.

To configure multiple LAGs:

1. Click the LAG link or the All link to display the LAGs.

2. Select the check box next to each LAG to configure.

The check box associated with each interface is selected, and the row for each selected interface is highlighted.

3. Configure the desired settings.

4. Click the Apply button.

Your settings are saved.

To configure all ports:

1. Ensure that the page is displaying only ports, and not LAGs.

2. Select the check box in the heading row.

The check boxes for all ports are selected and the rows for all ports are highlighted.

3. Configure the desired settings.

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4. Click the Apply button.

Your settings are saved.

To configure all LAGs:

1. Click the LAG link to display only the LAG interfaces.

2. Select the check box in the heading row

The check box associated with every LAG is selected, and the rows for all LAGs are highlighted.

3. Configure the desired settings.

4. Click the Apply button.

Your settings are saved.

To configure multiple ports and LAGs:

1. Click the All link to display all ports and LAGs.

2. Select the check box associated with each port and LAG to configure.

The rows for the selected ports and LAGs are highlighted.

3. Configure the desired settings.

4. Click the Apply button.

Your settings are saved.

To configure all ports and LAGs:

1. Click the All link to display all ports and LAGs.

2. Select the check box in the heading row

The check box associated with every port and LAG is selected, and the rows for all ports and LAGs are highlighted.

3. Configure the desired settings.

4. Click the Apply button.

Your settings are saved.

Context-Sensitive Help and Access to the Support WebSite

When you log in to the switch, every page contains a link to the online help ( ) that contains information to assist in configuring and managing the switch. The online help pages are context sensitive. For example, if the IP displays if you click the link to the online help.

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From the local browser interface, you can access the NETGEAR support website at netgear.com/support.

To access the support website from the local browser interface:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select Help > Support.

The Support page displays.

6. To access the NETGEAR support site for the switch, click the Apply button.

Access the User Manual Online

The user manual (the guide you are now reading) is available at the NETGEAR download center at

To access the user manual online from the local browser interface:

1. Connect your computer to the same network as the switch.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

netgear.com/support/download/.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

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5. Select Help > Online Help > User Guide.

The User Guide page displays.

6. To access the NETGEAR download center, click the Apply button.

7. Enter the model number of the switch.

8. Locate the user manual on the product support web page.

Register Your Product

To qualify for product updates and product warranty, we encourage you to register your product. The first time you log in to the switch, you can register with NETGEAR. Registration confirms that your email alerts work, lowers technical support resolution time, and ensures that your shipping address accuracy. We would also like to incorporate your feedback into future product development. We never sell or rent your email address and you can opt out of communications at any time.

To register with NETGEAR when you are prompted, click the REGISTER NOW button. Or at any time you can visit the NETGEAR website for registration at https://my.netgear.com/registration/login.aspx.

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2Configure System Information

This chapter contains the following sections:

• View and Configure the Switch Management Settings

• Use the Device View

• Configure PoE

• Configure SNMP

• Configure LLDP

• Configure DHCP Snooping

• Set Up PoE Timer Schedules

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View and Configure the Switch Management Settings

This section describes how to display the switch status and specify some basic switch information, such as the local browser interface IP address, system clock settings, and DNS information. The following sections describe how you can configure the switch management settings:

• View or Define System Information on page 32

• View the System CPU Status on page 37

• Configure the IP Network and VLAN Settings for the Local Browser Interface on

page 40

• Configure the Time Settings on page 42

• Configure Denial of Service Settings on page 55

• Configure DNS Settings on page 58

• Configure Green Ethernet Settings on page 63

View or Define System Information

When you log in, the System Information page displays. You can configure and view general device information.

To view or define system information:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

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5. Define the following fields:

• System Name. Enter the name to identify this switch.

alphanumeric characters. The default is blank.

• System Location. Enter the location of this switch. alphanumeric characters. The default is blank.

• System Contact. Enter the contact person for this switch. alphanumeric characters. The default is blank.

You can use up to 255

6. Click the Apply button.

Your settings are saved.

The following table describes the status information that displays in the System Information section.

Table 4. System Information

Field Description

Product Name The product name of this switch.

Serial Number The serial number of the switch.

System Object OID The base object ID for the switch's enterprise MIB.

Date & Time The current date and time.

System Up Time The time in days, hours, and minutes since the last switch reboot.

Base Mac Address Universally assigned hardware address of the switch.

Temp(C) The general temperature of the switch in degrees Centigrade.

Temperature traps range The minimum and maximum traps range.

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View the Temperature Sensor Information

Note: The temperature sensor information is available for models GS324TP

and GS348T.

You can view the current temperature of the temperature sensors. The maximum temperature of the temperature sensors depends on the hardware.

To view temperature information:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see

Discover or Change the Switch IP

Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

5. Scroll down to the

Temperature Sensors section.

6. To refresh the page with the latest information about the switch, click the Refresh button.

The following table describes the status information that displays in the Temperature Sensors section.

Table 5. Temperature sensors information

Field Description

Sensor The temperature sensor for the switch.

Description The description of the temperature sensor.

Temp(C) The temperature of the switch in degrees Centigrade.

State The temperature state of the switch

Max Temp (C) The maximum temperature of the CPU and MAC components. The switch

shuts down if it exceeds the maximum temperature.

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View the Fan Status

Note: The fan status information is available for models GS324TP and

GS348T. Model GS324Tdoes not include a fan.

You can view the status of the fans in all units. These fans remove the heat generated by the

, CPU, and other components, and allow the switch to function normally.

power

To view the fan status:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see

Discover or Change the Switch IP

Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

5. Scroll down to the Fans section.

6. To refresh the page with the latest information about the switch, click the Refresh button.

The following table describes the status information that displays in the Fans section.

Table 6. Fans information

Field Description

FAN The fan identifier.

Description The description of the fan.

Type Specifies whether the fan is fixed or removable.

Speed The speed of the fan.

Duty level(%) The duty level of the fan.

State Specifies whether the fan is operational.

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View the Power Supplies

You can view the status of the power supplies.

To view the power supplies status:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see

Discover or Change the Switch IP

Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

5. Scroll down to the Power supplies section.

6. To refresh the page with the latest information about the switch, click the Refresh button.

The following table describes the status information that displays in the Power Supplies section.

Table 7. Power supplies information

Field Description

Power supply The power supply identifier.

Description The description of the power supply.

Type Specifies whether the power supply is fixed or removable.

State Specifies the state of the power supply.

View the Software Versions

You can view the software versions that are running on the switch.

To view the software versions:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

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2. Launch a web browser.

3. In the address field of your web browser

, enter the IP address of the switch.

If you do not know the IP address of the switch, see

Discover or Change the Switch IP

Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

The System Information page displays.

5. Scroll down to the V

ersions section.

6. To refresh the page with the latest information about the switch, click the Refresh button.

Versions section.

Table 8. Versions information

Field Description

Model Name The model name of the switch.

Boot Version The version of the bootloader software of the switch.

Software Version The version number of the software that is running on the switch.

View the System CPU Status

You can monitor the CPU, memory resources, and utilization patterns across various intervals to assess the performance, load, and stability settings of the switch.

To view the system CPU status:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser

If you do not know the IP address of the switch, see Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

, enter the IP address of the switch.

Discover or Change the Switch IP

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The default password is password.

The System Information page displays.

5. Select System > Management > System CPU Status > System CPU Status.

The CPU Utilization section shows the memory information, task-related information, and percentage of CPU utilization per task.

The following table describes CPU Memory Status information.

Table 9. CPU Memory Status information

Field Description

Total System Memory The total memory of the switch in KBytes.

Available Memory The available memory space for the switch in KBytes.

Configure the CPU Thresholds

The CPU Utilization Threshold notification feature allows you to configure thresholds that, when exceeded, trigger a notification. The notification occurs through SNMP trap and syslog messages.

To configure the CPU thresholds:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

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If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > System CPU Status > CPU Threshold.

6. Specify the thresholds:

• Rising Threshold. Notification is generated when the total CPU utilization exceeds

this threshold value over the configured time period.

• Rising Interval.

This utilization monitoring time period can be configured from 5 to

The range is 1 to 100.

86400 seconds in multiples of 5 seconds.

• Falling Threshold. Notification is triggered when the total CPU utilization falls below this level for a configured period of time.

The falling utilization threshold must be equal to or less than the rising threshold value.

The falling utilization threshold notification is sent only if a rising threshold notification was sent previously. Configuring the falling utilization threshold and time period is optional. If the Falling CPU utilization settings are not configured, the switch uses the same values as the values that are used for the Rising CPU utilization. The range is 1 to 100.

• Falling Interval.

The utilization monitoring time period can be configured from

5 seconds to 86400 seconds in multiples of 5 seconds.

• Free Memory Threshold.

The free memory threshold value for the CPU in KB.

7. Click the Apply button.

Your settings are saved.

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Configure the IP Network and VLAN Settings for the Local Browser Interface

You can configure network information for the local browser interface, which is the logical interface used for in-band connectivity with the switch through any of the switch’s front-panel ports. The configuration settings associated with the switch’s network interface do not affect the configuration of the front panel ports through which traffic is switched or routed.

To configure the IP network and VLAN settings for the local browser interface:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > IP Configuration.

The IP Configuration page displays.

6. Select one of the following radio buttons to specify how the network information for the switch must be configured:

• Static IP Address. Specifies that the IP address, subnet mask, and default gateway

must be manually configured. Enter this information in the fields below this radio button.

• Dynamic IP Address (BOOTP). Specifies that the switch must obtain the IP address

through a BootP server.

• Dynamic IP Address (DHCP). Specifies that the switch must obtain the IP address

through a DHCP server.

7. If you select the Static IP Address radio button, configure the following network information:

• IP Address. The IP address of the network interface. The default value is

192.168.0.239. Each part of the IP address must start with a number other than zero. For example, IP addresses 001.100.192.6 and 192.001.10.3 are not valid.

• Subnet Mask. The IP subnet mask for the interface. The default value is

255.255.255.0.

• Default Gateway. The default gateway for the IP interface. The default value is

192.168.0.254.

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8. To change the management VLAN, specify the VLAN ID for the new management VLAN.

The management VLAN is used to establish an IP connection to the switch from a computer that is connected to a port in the same VLAN. By default, the management VLAN ID is 1, which allows an IP connection to be established through any port.

When you change the management VLAN, an IP connection can be made only through a port that is part of the management VLAN. Also, the port VLAN ID (PVID) of the port to be connected in that management VLAN must be the same as the management VLAN ID.

The switch can automatically apply the required settings that are associated with changing the management VLAN. For more information about changing the management VLAN, see

9. Click the Apply button.

Your settings are saved.

Change the Management VLAN on page 41.

Change the Management VLAN

You can let the switch change its management VLAN automatically or you can change the VLAN manually.

The following requirements apply to the management VLAN:

• Only one management VLAN can be active at a time.

• When you change the management VLAN, connectivity through the existing

management VLAN is lost.

• You must connect your management computer to a port in the new management VLAN.

Change the Management VLAN Automatically

To let the switch change the management VLAN automatically, change the existing management VLAN to a new management VLAN (see Settings for the Local Browser Interface on page 40), even if you are creating a new VLAN in the process. The switch automatically assigns the new management VLAN to all ports and PVIDs that the current management VLAN is associated with. You do not need to change any network cables.

Configure the IP Network and VLAN

Change the Management VLAN Manually

To change the management VLAN manually, you must take the following high-level steps:

1. Create a new VLAN that you want to use as the management VLAN (see Add a VLAN on page 123).

2. Assign the new VLAN to a port (see Configure VLAN Membership on page 125) and to the PVID for that port (see Configure Port PVID Settings on page 129).

3. Change the existing management VLAN to the new VLAN (see Change the Management VLAN on page 41).

4. Connect the network cable to the switch port that is assigned to new VLAN.

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Configure the Time Settings

The switch supports the Simple Network Time Protocol (SNTP). As its name suggests, it is a less complicated version of Network Time Protocol, which is a system for synchronizing the clocks of networked computer systems, primarily when data transfer is handled through the Internet. You can also set the system time manually.

Configure the Time Setting Manually

You can view and adjust date and time settings.

To manually configure the time setting:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see Address on page 12.

The login window opens.

4. Enter the switch’

The default password is password.

The System Information page displays.

5. Select System > Management > T

6. Select the Clock Source Local radio button.

7. In the Date field, specify the current date by entering the month, day

(MM/DD/YYYY).

8. In the T (HH:MM:SS).

ime field, specify the current time by entering in hours, minutes, and seconds

s password in the Password field.

ime > Time Configuration.

Discover or Change the Switch IP

, and year

Note: If you do not enter a date and time, the switch calculates the date and

time using the CPU’s clock cycle.

9. Click the Apply button.

Your settings are saved.

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Configure the Time Settings With SNTP and Configure the Global SNTP Settings

To configure the time by using SNTP and configure the global SNTP settings:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see Address on page 12.

The login window opens.

4. Enter the switch’

The default password is password.

The System Information page displays.

5. Select System > Management > T

The Time Configuration page displays.

6. Select the Clock Source SNTP radio button.

s password in the Password field.

ime > Time Configuration.

Discover or Change the Switch IP

The switch can set its local clock to SNTP only if the following two conditions are met:

• Y

ou configured the settings for an SNTP server. (For a unicast SNTP server, see

Configure an SNTP Server on page 47).

• The switch can contact the SNTP server

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7. Next to Client Mode, select the mode of operation of the SNTP client:

• Unicast. SNTP operates in a point-to-point way. A unicast client sends a request to a

designated server at its unicast address and expects a reply from which it can determine the time and, optionally, the round-trip delay and local clock offset relative to the server.

• Broadcast. SNTP operates in the same manner as multicast mode but uses a local

broadcast address instead of a multicast address. The broadcast address provides a single-subnet scope while a multicast address provides an Internet-wide scope.

The default value is Disable.

8. If the SNTP client mode is Unicast, you must add the IP address or DNS name of one or more SNTP servers that the switch can poll.

For more information, see Configure an SNTP Server on page 47.

9. In the Port field, specify the local UDP port that the SNTP client receives server packets on.

The allowed range is 1025 to 65535 and 123. The default value is 123. When the default value is configured, the actual client port value used in SNTP packets is assigned by the switch.

10. In the Unicast Poll Interval field, specify the number of seconds between unicast poll requests expressed as a power of 2. The allowed range is 6 to 10. The default value is 6.

11. In the Broadcast Poll Interval field, specify the number of seconds between broadcast poll requests expressed as a power of 2.

Broadcasts received prior to the expiry of this interval are discarded. The allowed range is 6 to 10. The default value is 6.

12. In the Unicast Poll Timeout field, specify the number of seconds to wait for an SNTP response to a unicast poll request.

The allowed range is 1 to 30. The default value is 5.

13. In the Unicast Poll Retry field, specify the number of times to retry a unicast poll request to an SNTP server after the first time-out before the switch attempts to use the next configured server.

The allowed range is 0 to 10. The default value is 1.

14. In the Time Zone Name field, specify the acronym for a time zone.

You can also specify the number of hours and number of minutes that the time zone is different from the Coordinated Universal Time (UTC). The time zone can affect the display of the current system time. The default value is UTC.

Note: When you use an SNTP or NTP time server to update the switch’s

clock, the time data received from the server is based on the UTC, which is the same as Greenwich Mean Time (GMT). However, this might not be the time zone in which the switch is located.

15. In the Offset Hours field, specify the number of hours that the time zone is different from the UTC.

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For more information see the description for Time Zone Name in Step 14. The allowed range is –12 to 13. The default value is 0.

16. In the Offset Minutes field, specify the number of minutes that the time zone is different from UTC.

For more information see the description for Time Zone Name in Step 14. The allowed range is 0 to 59. The default value is 0.

17. Click the Apply button.

Your settings are saved.

View the SNTP Global Status

When you select the SNTP option as the clock source, you can view the SNTP global status.

To view the SNTP global status:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > Time > Time Configuration.

6. Make sure that the Clock Source SNTP radio button is selected.

The SNTP Global Status section displays below the SNTP Global Configuration section.

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7. Click the Refresh button to refresh the page with the latest information about the switch.

The following table displays the nonconfigurable SNTP Global Status information.

Table 10. SNTP Global Status information

Field Description

Version The SNTP version that the client supports.

Supported mode The SNTP modes that the client supports. Multiple modes can be supported by a client.

Last Update Time The local date and time (UTC) that the SNTP client last updated the system clock.

Last Attempt Time The local date and time (UTC) of the last SNTP request or receipt of an unsolicited

message.

Last Attempt Status The status of the last SNTP request or unsolicited message for both unicast and

broadcast modes. If no message was received from a server displayed. These values are appropriate for all operational modes.

• Other.

• Success. The

• Request Timed Out.

• Bad Date Encoded.

• Version Not Supported. The

• Server Unsynchronized.

• Server Kiss Of Death.

The status of the last request is unknown.

SNTP operation was successful and the system time was updated.

After an SNTP request was sent to an SNTP server, the

response timer expired before a response from the server was received.

The time provided by the SNTP server is not valid.

SNTP version supported by the server is not

compatible with the version supported by the client.

The SNTP server is not synchronized with its peers. This

is indicated by the leap indicator field in the SNTP message.

The SNTP server indicated that no further queries were to be sent to this server. This is indicated by a stratum field equal to 0 in a message received from a server.

, a status of Other is

Server IP Address The IP address of the server for the last received valid packet. If no message was

received from any server

Address Type The address type of the SNTP server address for the last received valid packet.

, an empty string is shown.

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Table 10. SNTP Global Status information (continued)

Field Description

Server Stratum The claimed stratum of the server for the last received valid packet.

Reference Clock ID The reference clock identifier of the server for the last received valid packet.

Server mode The mode of the server for the last received valid packet.

Unicast Server Max Entries

Unicast Server Current Entries

Broadcast Count The number of unsolicited broadcast SNTP messages that were received and processed

The maximum number of unicast server entries that can be configured on this client.

The number of current valid unicast server entries configured for this client.

by the SNTP client since the last reboot.

Configure an SNTP Server

SNTP assures accurate network device clock time synchronization up to the millisecond. Time synchronization is performed by a network SNTP server. The switch operates only as an SNTP client and cannot provide time services to other systems.

Time sources are established by strata. Strata define the accuracy of the reference clock. The higher the stratum (where zero is the highest), the more accurate the clock. The device receives time from Stratum 1 and above since it is itself a Stratum 2 device.

The following is an example of strata:

• Stratum 0. A real-time clock is used as the time source, for example, a GPS system.

• Stratum 1. A server that is directly linked to a Stratum 0 time source is used. Stratum 1

time servers provide primary network time standards.

• Stratum 2. The time source is distanced from the Stratum 1 server over a network path. For example, a Stratum 2 server receives the time over a network link, through NTP, from a Stratum 1 server.

Information received from SNTP servers is evaluated based on the time level and server type.

SNTP time definitions are assessed and determined by the following time levels:

•T1. Time that the original request was sent by the client.

•T2. Time that the original request was received by the server.

•T3. Time that the server sent a reply.

•T4. Time that the client received the server's reply.

The device can poll unicast server types for the server time.

Polling for unicast information is used for polling a server for which the IP address is known. SNTP servers that were configured on the device are the only ones that are polled for synchronization information. T1 through T4 are used to determine server time. This is the preferred method for synchronizing device time because it is the most secure method. If this

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method is selected, SNTP information is accepted only from SNTP servers defined on the device using the SNTP Server Configuration page.

The device retrieves synchronization information, either by actively requesting information or at every poll interval.

You can view and modify information for adding and modifying Simple Network Time Protocol SNTP servers.

Add an SNTP Server

To add an SNTP server:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

f-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser

, enter the IP address of the switch.

If you do not know the IP address of the switch, see Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > T

ime > SNTP Server Configuration.

The previous figure shows one server example.

6. From the Server T

ype menu, select the type of SNTP address to enter in the address field.

Discover or Change the Switch IP

The address can be either an IP address (IPv4) or a host name (DNS).

7. In the Address field, specify the IP address or the host name of the SNTP server

This is a text string of up to 64 characters, containing the encoded unicast IP address or host name of an SNTP server

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address is a DNS host name, then that host name is resolved into an IP address each time an SNTP request is sent to it.

8. If the UDP port on the SNTP server to which SNTP requests are sent is not the standard port (123), specify the port number in the Port field.

The range is from 1 to 65535. The default value is 123.

9. In the Priority field, specify the priority order which to query the servers.

The SNTP client on the device continues sending SNTP requests to different servers until a successful response is received, or all servers are exhausted. The priority indicates the order in which to query the servers. The request is sent to an SNTP server with a priority value of 1 first, then to a server with a priority value of 2, and so on. If any servers are assigned the same priority, the SNTP client contacts the servers in the order that they appear in the table. The range is from 1 to 3. The default value is 1.

10. In the Version field, specify the NTP version running on the server.

The range is 1 to 4. The default value is 4.

11. Click the Add button.

The SNTP server entry is added.

12. Repeat the previous steps to add additional SNTP servers.

You can configure up to three SNTP servers.

The SNTP Server Status table displays status information about the SNTP servers configured on your switch. The following table describes the SNTP Server Global Status information.

Table 11. SNTP Server Status information

Field Description

Address All the existing server addresses. If no server configuration exists, a message stating

that no SNTP server exists displays on the page.

Last Update Time The local date and time (UTC) that the response from this server was used to update

the system clock.

Last Attempt Time The local date and time (UTC) that this SNTP server was last queried.

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Table 11. SNTP Server Status information (continued)

Field Description

Last Attempt Status The status of the last SNTP request or unsolicited message for both unicast and

broadcast modes. If no message was received from a server, a status of Other is displayed. These values are appropriate for all operational modes:

• Other. The status of the last request is unknown, or no SNTP responses were received.

• Success. The SNTP operation was successful and the system time was updated.

• Request Timed Out. After an SNTP request was sent to an SNTP server, the

response timer expired before a response from the server was received.

• Bad Date Encoded. The time provided by the SNTP server is not valid.

• Version Not Supported. The SNTP version supported by the server is not

compatible with the version supported by the client.

• Server Unsynchronized. The SNTP server is not synchronized with its peers. This is indicated by the leap indicator field on the SNTP message.

• Server Kiss Of Death. The SNTP server indicated that no further queries were to be sent to this server. This is indicated by a stratum field equal to 0 in a message received from a server.

Requests The number of SNTP requests made to this server since last agent reboot.

Failed Requests The number of failed SNTP requests made to this server since the last reboot.

Change the Settings for an Existing SNTP Server

To change the settings for an existing SNTP server:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > Time > SNTP Server Configuration.

The SNTP Server Configuration page displays.

6. Select the check box next to the configured server.

7. Specify new values in the available fields.

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8. Click the Apply button.

Your settings are saved.

Remove an SNTP Server

To remove an SNTP server:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > Time > SNTP Server Configuration.

The SNTP Server Configuration page displays.

6. Select the check box next to the configured server to remove.

7. Click the Delete button.

The entry is removed, and the device is updated.

Configure Daylight Saving Time Settings

You can configure settings for summer time, which is also known as daylight saving time. Used in some countries around the world, summer time is the practice of temporarily advancing clocks during the summer months. Typically clocks are adjusted forward one or more hours near the start of spring and are adjusted backward in autumn.

To configure the daylight saving time settings:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

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4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > T

ime > DayLight Saving Configuration.

6. Select a Daylight Saving (DST) radio button:

• Disable. Disable daylight saving time.

• Recurring. Daylight saving time occurs at the same time every year. The start and

end times and dates for the time shift must be manually configured.

• Recurring EU.

The system clock uses the standard recurring summer time settings

used in countries in the European Union. When this option is selected, the rest of the applicable fields on the page are automatically populated and cannot be edited.

• Recurring USA.

The system clock uses the standard recurring daylight saving time settings used in the United States. When this option is selected, the rest of the applicable fields on the page are automatically populated and cannot be edited.

• Non Recurring. Daylight saving time settings are in ef

fect only between the start date and end date of the specified year. When this option is selected, the summer time settings do not repeat on an annual basis.

7. Depending on your selection, configure the additional fields:

• If you select the DayLight Saving (DST) Recurring, Recurring EU, or Recurring USA radio button, the fields in the following table are visible and you must configure

them.

Table 12. Daylight saving setting is Recurring, Recurring EU, or Recurring USA

Field Description

Begins At These fields are used to configure the start values of the date and time.

• Week. Configure the start week in the month.

• Day. Configure the start day in the week.

• Month. Configure the start month.

• Hours. Configure the start hour

• Minutes. Configure the start minutes.

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Table 12. Daylight saving setting is Recurring, Recurring EU, or Recurring USA

Field Description

Ends At These fields are used to configure the end values of date and time.

• Week. Configure the end week in the month.

• Day. Configure the end day in the week.

• Month. Configure the end month.

• Hours. Configure the end hour

• Minutes. Configure the end minutes.

Offset Configure recurring offset in minutes. The range is from 1 to 1440 minutes.

Zone Configure the time zone.

• If you select the DayLight Saving (DST) Non Recurring radio button, the fields in the following table are visible and you must configure them.

Table 13. Daylight saving setting is Non Recurring

Field Description

Begins At These fields are used to configure the start values of the date and time.

• Month. Configure the start month.

• Date. Configure the start date in the month.

• Year. Configure the start year

• Hours. Configure the start hour

• Minutes. Configure the start minutes.

Ends At These fields are used to configure the end values of date and time.

• Month. Configure the end month.

• Date. Configure the end date in the month.

• Year. Configure the end year

• Hours. Configure the end hour

• Minutes. Configure the end minutes.

Offset Specify the number of minutes to shift the summer time from the standard time.

The range is from 1 to 1440 minutes.

Zone Specify the acronym associated with the time zone when summer time is in

fect. This field is not validated against an official list of time zone acronyms.

8. Click the Apply button.

Your settings are saved.

View the DayLight Saving Time Status

The Daylight Saving (DST) Status section shows information about the summer time settings and whether the time shift for summer time is currently in effect.

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To view the daylight saving time status:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

f-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser

, enter the IP address of the switch.

If you do not know the IP address of the switch, see Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > T

ime > DayLight Saving Configuration.

Discover or Change the Switch IP

6. To refresh the page with the latest information about the switch, click the Refresh button.

The following table displays the nonconfigurable daylight saving status information.

Table 14. Daylight Saving (DST) Status information

Field Description

Daylight Saving (DST) The Daylight Saving value, which is one of the following:

• Disable

• Recurring

• Recurring EU

• Recurring USA

• Non Recurring

Begins At The start date of daylight saving time. This field is not displayed when

daylight saving time is disabled.

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Table 14. Daylight Saving (DST) Status information (continued)

Field Description

Ends At The end date of daylight saving time. This field is not displayed when

daylight saving time is disabled.

Offset (in Minutes) The offset value in minutes.This field is not displayed when daylight saving

time is disabled.

Zone The zone acronym. This field is not displayed when daylight saving time is

disabled.

Daylight Saving (DST) in Effect Indicates whether daylight saving time is in effect.

Configure Denial of Service Settings

You can configure the Denial of Service (DoS) settings for the switch. The switch provides support for classifying and blocking specific types of DoS attacks.

Configure Auto-DoS

You can automatically enable all the DoS features available on the switch, except for the L4 Port attack. For information about the types of DoS attacks the switch can monitor and block, see

Configure Denial of Service on page 56.

To enable the Auto-DoS feature:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > Denial of Service > Auto-DoS Configuration.

The Auto-DoS Configuration page displays.

6. Select the Auto-DoS Mode Enable radio button.

When an attack is detected, a warning message is logged to the buffered log and is sent to the syslog server. At the same time, the port is shut down and can be enabled only manually by the admin user.

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7. Click the Apply button.

Your settings are saved.

Configure Denial of Service

You can select which types of DoS attacks the switch monitors and blocks.

To configure individual DoS settings:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see Address on page 12.

The login window opens.

4. Enter the switch’

The default password is password.

The System Information page displays.

5. Select System > Management > Denial of Service > Denial of Service Configuration.

s password in the Password field.

Discover or Change the Switch IP

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6. Select the types of DoS attacks for the switch to monitor and block and configure any associated values:

• Denial of Service Min TCP Header Size. Specify the minimum TCP header size

allowed. If DoS TCP Fragment is enabled, the switch drops packets with a TCP header smaller than the configured value. The default value is 20.

• Denial of Service ICMPv4. Enabling ICMPv4 DoS prevention causes the switch to

drop ICMPv4 packets with a type set to ECHO_REQ (ping) and a size greater than the configured ICMPv4 packet size.

• Denial of Service Max ICMPv4 Packet Size. Specify the maximum ICMPv4 packet

size allowed. If ICMPv4 DoS prevention is enabled, the switch drops IPv4 ICMP ping packets with a size greater than the configured value. The default value is 512.

• Denial of Service ICMPv6. Enabling ICMPv6 DoS prevention causes the switch to

drop ICMPv6 packets with a type set to ECHO_REQ (ping) and a size greater than the configured ICMPv6 packet size.

• Denial of Service Max ICMPv6 Packet Size. Specify the maximum ICMPv6 packet

size allowed. If ICMPv6 DoS prevention is enabled, the switch drops IPv6 ICMP ping packets with a size greater than the configured value. The default value is 512.

• Denial of Service First Fragment. Enabling First Fragment DoS prevention causes

the switch to check DoS options for the first-fragment IP packets if the switch receives fragmented IP packets. Otherwise, the switch ignores the first-fragment IP packets.

• Denial of Service ICMP Fragment. Enabling ICMP Fragment DoS prevention

causes the switch to drop ICMP fragmented packets.

• Denial of Service Smurf. Enabling Smurf DoS prevention causes the switch to drop

broadcast ICMP echo request packet.

• Denial of Service SIP=DIP. Enabling SIP=DIP DoS prevention causes the switch to

drop packets with a source IP address equal to the destination IP address.

• Denial of Service SMAC=DMAC. Enabling SMAC=DMAC DoS prevention causes

the switch to drop packets with a source MAC address equal to the destination MAC address.

• Denial of Service TCP FIN&URG&PSH. Enabling TCP FIN & URG & PSH DoS

prevention causes the switch to drop packets with TCP flags FIN, URG, and PSH set and the TCP sequence number equal to 0.

• Denial of Service TCP Flag&Sequence. Enabling TCP Flag DoS prevention causes

the switch to drop packets with TCP control flags set to 0 and the TCP sequence number set to 0.

• Denial of Service TCP Fragment. Enabling TCP Fragment DoS prevention causes

the switch to drop packets with a TCP payload for which the IP payload length minus the IP header size is less than the minimum allowed TCP header size.

• Denial of Service TCP Offset. Enabling TCP Offset DoS prevention causes the

switch to drop packets with a TCP header offset set to 1.

• Denial of Service TCP Port. Enabling TCP Port DoS prevention causes the switch to

drop packets for which the TCP source port is equal to the TCP destination port.

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• Denial of Service TCP SYN. Enabling TCP SYN DoS prevention causes the switch

to drop packets with TCP flags set.

• Denial of Service TCP SYN&FIN. Enabling TCP SYN & FIN DoS prevention causes

the switch to drop packets with TCP flags SYN and FIN set.

• Denial of Service UDP Port. Enabling UDP Port DoS prevention causes the switch

to drop packets for which the UDP source port is equal to the UDP destination port.

7. Click the Apply button.

Your settings are saved.

Configure DNS Settings

You can configure information about DNS servers that the network uses and how the switch operates as a DNS client.

Configure Global DNS Settings and Add a DNS Server

You can configure global DNS settings and DNS server information.

To configure the global DNS settings and add a DNS server:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > DNS > DNS Configuration.

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6. Select the Disable or Enable radio button to specify whether to disable or enable the administrative status of the DNS client.

• Enable.

Allows the switch to send DNS queries to a DNS server to resolve a DNS

domain name. The DNS is enabled by default.

• Disable. Prevents the switch from sending DNS queries.

7. In the DNS Default Name field, enter the default DNS domain name to include in DNS

queries.

When the system is performing a lookup on an unqualified host name, this field is provides the domain name (for example, if default domain name is netgear

.com and the user enters test, then test is changed to test.netgear.com to resolve the name). The name must not be longer than 255 characters.

8. In the DNS Server field, specify the IPv4 address to which the switch sends DNS queries.

9. Click the Add button.

The server is added to the list. You can specify up to eight DNS servers. The Preference field displays the server preference order

. The preference is set in the order in which

preferences were entered.

10. Click the Apply button.

Your settings are saved.

The following table displays DNS Server Configuration information.

Table 15. DNS Server Configuration information

Field Description

ID The identification of the DNS Server.

Preference Shows the preference of the DNS server. The preferences are determined

by the order in which they were entered.

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Remove a DNS Server

You can remove a DNS server that you no longer need.

To remove a DNS server:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > DNS > DNS Configuration.

6. In the DNS Server Configuration table, select the check box for the DNS server.

Note: If you do not select a DNS server, all the DNS servers are removed

after you click the Delete button.

7. Click the Delete button.

The DNS server is removed.

Configure and View Host Name-to-IP Address Information

You can manually map host names to IP addresses or view dynamic host mappings.

Add a Static Entry to the Dynamic Host Mapping Table

To add a static entry to the local dynamic host mapping table:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

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4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > DNS > Host Configuration.

The DNS Host Configuration page displays.

6. In the Host Name (1 to 255 characters) field, specify the static host name to add.

Its length cannot exceed 255 characters and it is a required field.

7. In the IPv4/IPv6 Address field, enter the IP address to associate with the host name.

8. Click the Add button.

Your settings are saved. The entry displays in the Dynamic Host Mapping table.

Remove an Entry From the Dynamic Host Mapping Table

To remove an entry from the Dynamic Host Mapping table:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > DNS > Host Configuration.

The DNS Host Configuration page displays.

6. Select the check box next to the entry to remove.

7. Click the Delete button.

The entry is removed from the Dynamic Host Mapping table.

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Change the Host Name or IP Address in an Entry of the Dynamic Host Mapping Table, View All Entries, or Clear All Entries

To change the host name or IP address in an entry of the Dynamic Host Mapping table, view all entries, or clear all entries

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

f-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser

, enter the IP address of the switch.

If you do not know the IP address of the switch, see

Discover or Change the Switch IP

Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > DNS > Host Configuration.

The DNS Host Configuration page display.

6. Select the check box next to the entry to update.

7. Enter the new information in the appropriate field.

8. Click the Apply button.

Your settings are saved.

9. T

o clear all the dynamic host name entries from the list, click the Clear button.

The Dynamic Host Mapping table shows host name-to-IP address entries that the switch learned.

Table 16. Dynamic Host Mapping information

The following table describes the dynamic host fields.

Field Description

Host Lists the host name that you assign to the specified IP address.

Total Time since the dynamic entry was first added to the table.

Elapsed Time since the dynamic entry was last updated.

Type The type of the dynamic entry.

Addresses Lists the IP address associated with the host name.

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Configure Green Ethernet Settings

You can configure the green Ethernet features to reduce power consumption.

To configure the Green Ethernet settings:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see Address on page 12.

The login window opens.

4. Enter the switch’

The default password is password.

The System Information page displays.

5. Select System > Management > Green Ethernet > Green Ethernet Configuration.

6. Select the Auto Power Down Mode Disable or Enable radio button.

By default, this mode is disabled. When a port link is down, the underlying physical layer goes down for a short period and then checks for port link pulses again so that auto-negotiation remains possible. In this way partner is present for the port.

7. Select the EEE Mode Disable or Enable radio button.

s password in the Password field.

, the switch saves power when no link

Discover or Change the Switch IP

By default, this mode is disabled. Energy Efficient Ethernet (EEE) combines the MAC with a family of physical layers that support operation in a low power mode. It is defined by the IEEE 802.3az standard. Lower power mode enables both the send and receive sides of the link to disable some functionality for power savings when the load is light.

ransition to low power mode does not change the link status. Frames in transit are not

T dropped or corrupted in transition to and from low power mode. Transition time is transparent to upper layer protocols and applications.

8. Click the Apply button.

Your settings are saved.

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Configure Green Ethernet Interface Settings

You can configure Green Ethernet settings for individual interfaces.

To configure the Green Ethernet interface settings:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see Address on page 12.

The login window opens.

4. Enter the switch’

The default password is password.

The System Information page displays.

5. Select System > Management > Green Ethernet > Green Ethernet Interface Configuration.

6. Select one or more interfaces by taking one of the following actions:

o configure a single interface, select the check box associated with the port, or type

• T

the port number in the Go To Interface field and click the Go button.

• T

o configure multiple interfaces with the same settings, select the check box

associated with each interface.

• T

o configure all interfaces with the same settings, select the check box in the heading

row.

s password in the Password field.

Discover or Change the Switch IP

7. From the Auto Power Down Mode menu, select Enable or Disable.

By default, this mode is disabled for the port. When a port link is down, the underlying physical layer goes down for a short period and then checks for port link pulses again so that auto-negotiation remains possible. In this way partner is present for the port.

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8. From the EEE mode menu, select Enable or Disable.

By default, this mode is disabled for the port. Energy Efficient Ethernet (EEE) combines the MAC with a family of physical layers that support operation in a low power mode. It is defined by the IEEE 802.3az standard. Lower power mode enables both the send and receive sides of the link to disable some functionality for power savings when the load is light. Transition to low power mode does not change the link status. Frames in transit are not dropped or corrupted in transition to and from low power mode. Transition time is transparent to upper layer protocols and applications.

9. Click the Apply button.

Your settings are saved.

Configure Green Ethernet Local Devices and View or Clear Device Information

You can view detailed per-port green Ethernet information and enable or disable green Ethernet settings on a single port. Using the green Ethernet features allows for power consumption savings.

To configure green Ethernet local devices and view or clear device information:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > Green Ethernet > Green Ethernet Details.

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6. From the Interface menu, select the interface.

7. From the Energy Detect

Admin Mode menu, select Enable or Disable.

By default, this mode is disabled for the port. When you enable this mode, and is the port link goes down, the underlying physical layer goes down for a short period and then checks for port link pulses again so that auto-negotiation remains possible. In this way the switch saves power when no link partner is present for the port. If Energy Detect Admin Mode is not supported, N/A is displayed

8. From the EEE Admin

mode menu, select Enable or Disable.

By default, this mode is disabled for the port. When you enable this mode, the port transitions to low power mode during a link idle condition. If the EEE

Admin Mode is not

supported, N/A is displayed.

9. In the EEE T

ransmit Idle Time field, enter the time after which switch transitions to the LPI

state.

The range is 600 to 4294967295. The default value is 600.

10. In the EEE T

ransmit Wake Time field, enter the time that the switch must wait before it

transitions to the active state after it receives a packet for transmission.

The range is 8 to 65535. The default value is 17.

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11. Click the Apply button.

Your settings are saved.

12. T

o refresh the page with the latest information about the switch, click the Refresh button.

13. T

o clear the device information, resetting all statistics for the selected interface to default

values, click the Clear button.

The following table describes the nonconfigurable fields.

Table 17. Green Ethernet Local Device Information

Field Description

Cumulative Energy Saved on this port due to Green mode(s) (W

Rx Low Power Idle Event Count

Rx Low Power Idle Duration (uSec)

Tx Low Power Idle Event Count

Tx Low Power Idle Duration (uSec)

Tw_sys_tx (uSec) The value in uSecs of Tw_sys that the switch can support.

Tw_sys_tx Echo (uSec) The remote system’s transmitted Tw_sys in uSecs that was used by the switch to

Tw_sys_rx (uSec) The value of Tw_sys in uSecs that the switch requests from the remote system.

Tw_sys_rx Echo (uSec) The remote system’s received Tw_sys in uSecs that was used by the switch to

Fallback Tw_sys (uSec) The value in uSecs of the fallback Tw_sys that the switch requests from the

atts * Hours)

The cumulative energy in watts multiplied by hours that is saved through the green modes that are enabled on this port.

The number of Rx low-power idle (LPI) events since the EEE counters were cleared.

The duration of the Rx LPI state since the EEE counters were cleared. The duration of the Rx LPI state is displayed in 10 uSec increments.

The number of Tx LPI events since the EEE counters were cleared. The counter increments each time that the MAC

The duration of the Tx LPI state since the EEE counters were cleared. The duration of the

compute the

remote system.

The counter increments each time that the MAC Rx enters the LPI state.

Tx enters the LPI state.

Tx LPI state is displayed in 10 uSec increments.

Tw_sys in requests to the remote system.

Tw_sys that it can support.

Tx_dll_enabled Indicates the initialization status of the EEE transmit Data Link Layer

management function on the switch.

Tx_dll_ready Indicates whether the Data Link Layer is ready and the Tx system initialization is

complete and ready to update or receive LLD PDUs containing EEE

Rx_dll_enabled Indicates the status of the EEE capability negotiation on the switch.

Rx_dll_ready Indicates whether the Data Link Layer is ready and the Rx system initialization is

complete and ready to update or receive LLD PDUs containing EEE

Time Since Counters Last Cleared

The period since the counters were cleared or the switch was powered up.

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View Green Ethernet Information for Remote Devices

To view green Ethernet information for remote device:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > Green Ethernet >

Green Ethernet Details.

The Green Ethernet Details page displays.

6. Scroll down to the Remote Device Information section.

7. Select the interface.

The following table describes the nonconfigurable fields.

Table 18. Green Ethernet Remote Device Information

Discover or Change the Switch IP

Field Description

Remote ID The remote client identifier that is assigned to the remote system.

Remote Tw_sys_tx (uSec) The value in uSecs of the Tw_sys that the remote system can support.

Remote Tw_sys_tx Echo (uSec)

Remote Tw_sys_rx (uSec) The value in uSecs of the Tw_sys that the remote system requests from the

Remote Tw_sys_rx Echo (uSec)

Remote Fallback Tw_sys (uSec)

Configure System Information User Manual68

The value in uSecs of the Transmit Tw_sys that is echoed back by the remote system.

switch.

The value in uSecs of the Receive Tw_sys echoed back by the remote system.

The value in uSecs of the fallback Tw_sys that the remote system is advertising.

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View the Green Ethernet Statistics Summary

This page summarizes the green Ethernet settings currently in use.

To view the green Ethernet statistics:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see Address on page 12.

The login window opens.

4. Enter the switch’

The default password is password.

The System Information page displays.

5. Select System > Management > Green Ethernet > Green Ethernet Summary.

s password in the Password field.

Discover or Change the Switch IP

6. To refresh the page with the latest information about the switch, click the Refresh button.

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The following table describes the nonconfigurable fields.

Table 19. Green Ethernet Statistics Summary information

Field Description

Green Ethernet Statistics Summary

Current Power Consumption (mW) The estimated power consumption by all ports of the switch in mWatts.

Percentage Power Saving (%) The estimated percentage of power saved on all ports of the switch if the

green modes are enabled.

Cumulative Energy Saving (W * H) The estimated cumulative energy saved on the switch in watts multiplied by

hours if all green modes are enabled.

Green Ethernet Feature Summary

Unit The unit ID, which is always 1.

Green Features supported on this unit

Green Ethernet Interface Summary

Interface The interface for which the information is displayed.

Energy Detect Admin mode Indicates whether the Energy Detect mode is enabled or disabled on the

The list of green features that are supported on the switch, which could be one or more of the following:

• Energy-Detect (Energy Detect)

• Short-Reach (Short Reach)

• EEE (Energy Ef

• LPI-History (EEE Low Power Idle History)

• LLDP-Cap-Exchg (EEE LLDP Capability Exchange)

• Pwr-Usg-Est (Power Usage Estimates).

port. (For more information, see

ficient Ethernet)

Configure Green Ethernet

Interface Settings on page 64).

Energy Detect Operational Status Indicates the operational status of the Energy Detect mode. (For more

information, see

Configure Green Ethernet Interface Settings

on page 64).

EEE Admin mode Indicates whether the Energy Efficient Ethernet mode on the port. (For

more information, see

Configure Green Ethernet Interface

Settings on page 64).

Configure and View the Green Ethernet EEE LPI History

You can configure and view the Green Ethernet EEE low power idle (LPI) history.

To configure and view the port Green Ethernet EEE LPI history:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

f-network using an Ethernet cable.

2. Launch a web browser.

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3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see

Discover or Change the Switch IP

Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > Management > Green Ethernet > Green Ethernet LPI History.

6. Select the interface.

7. In the Sampling Interval field, enter the interval at which EEE LPI data is collected.

This is a global setting and is applied to all interfaces. The range is from 30 to 36000 seconds.The default is 3600 seconds.

8. In the Max Samples to keep field, enter the maximum number of samples to keep.

This is a global setting that is applied to all interfaces. The range is from 1 to 168. The default is 168.

9. Click the Apply button.

Your settings are saved.

10. T

o refresh the page with the latest information about the switch, click the Refresh button.

The Percentage LPI time field shows the time spent in LPI mode the since EEE counters were cleared.

The following table describes the nonconfigurable fields.

Table 20. Interface Green Mode EEE LPI History information

Field Description

Sample No. The sample index number.

Time Since The Sample Was Recorded

The interval between the current time and the time at which the sample was recorded.

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Table 20. Interface Green Mode EEE LPI History information (continued)

Field Description

Percentage Time spent in LPI mode since last sample

Percentage Time spent in LPI mode since last reset

The percentage of time spent in LPI mode during the current measurement interval.

The percentage of time spent in LPI mode since the EEE LPI statistics were reset.

Use the Device View

For information about the device view, see Use the Device View of the Local Browser Interface on page 22.

Configure PoE

On model GS324TP, you can configure the global Power over Ethernet (PoE) settings and the PoE settings for each port.

Note: For more information about PoE, see the hardware installation guide,

which you can download by visiting netgear.com/support/download/.

Configure the Global PoE Settings

To configure the PoE settings:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

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The System Information page displays.

5. Select System > PoE > Basic > PoE Configuration.

The previous figure shows the PoE Configuration page for model GS324TP.

6. In the System Usage Threshold field, enter a number from 1 to 99 to set the threshold level at which a trap is sent if the consumed power exceeds the threshold power

. The

default is 95 percent.

7. From the Power Management Mode menu, select the power management algorithm that the switch uses to deliver power to the requesting powered devices (PDs):

• Static. Specifies that the power allocated for each port depends on the type of power

threshold configured on the port.

• Dynamic. Specifies that the power consumption on each port is measured and

calculated in real time. This is the default setting.

8. T

o active the PoE traps, select the Enable radio button.

Selecting the Disable radio button deactivates the PoE traps.

The default setting is

Enabled.

9. Click the Apply button.

Your settings are saved.

The following table describes the nonconfigurable fields on the page.

Table 21. PoE Configuration fields

Field Description

Firmware Version The firmware version of the PoE firmware component.

Power Status The power status.

Total Power Available Watts The maximum amount of power in watts that the switch can deliver to all ports.

Threshold Power Watts If the consumed power is below the threshold power, the switch can power up

another port. power. The threshold power is displayed in watts.

Note: The threshold power value is determined by the value that you enter in the System Usage Threshold field.

Consumed Power Watts The total amount of power in watts that is being delivered to all ports.

The consumed power can be between the nominal and threshold

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Configure the PoE Port Settings

To configure the PoE port settings:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see Address on page 12.

The login window opens.

4. Enter the switch’

The default password is password.

The System Information page displays.

5. Select System > PoE >

The previous figure shows the PoE Port Configuration page for model GS324TP.

6. Select one or more interfaces by taking one of the following actions: o configure a single interface, select the check box associated with the port, or type

• T the port number in the Go To Interface field and click the Go button.

• T

o configure multiple interfaces with the same settings, select the check box

associated with each interface.

• T

o configure all interfaces with the same settings, select the check box in the heading

row.

s password in the Password field.

Advanced > PoE Port Configuration.

Discover or Change the Switch IP

7. From the Port Power menu, select the PoE mode of the port:

• Enable.

• Disable.

8. From the Port Priority menu, select the priority for the port in relation to other ports if the

total power that the switch is capable of delivering exceeds the total power budget:

• Low. Low priority

• Medium. Medium priority

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The port’s capacity to deliver power is enabled. This is the default setting.

The port’s capacity to deliver power is disabled.

. This is the default setting.

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• High. High priority.

• Critical. Critical priority.

The port priority determines which ports can still deliver power after the total power delivered by the switch exceeds the total power budget. (In such a situation, the switch might not be able to deliver power to all connected devices.) If the same priority applies to two ports, the lower-numbered port receives higher priority.

9. From the Power Mode menu, select the PoE mode that the port must function in:

• 802.3af. The port is powered in and limited to the IEEE 802.3af mode. A PD that

requires IEEE 802.3at does not receive power if the port functions in IEEE 802.3af mode.

• Legacy. The port is powered using high-inrush current, which is used by legacy PDs that require more than 15W to power up.

• Pre-802.3at. The port is initially powered in the IEEE 802.3af mode and, before 75

msec pass, is switched to the high power IEEE 802.3at mode. Select this mode if the PD does not perform Layer 2 classification or if the switch performs 2-event

Layer 1 classification.

• 802.3at. The port is powered in the IEEE 802.3at mode and is backward compatible with IEEE 802.3af. The 802.3at mode is the default mode. In this mode, if the switch detects that the attached PD requests more power than IEEE 802.3af but is not an IEEE 802.3at Class 4 device, the PD does not receive power from the switch.

10. From the Power Limit Type menu, select how the port controls the maximum power that it can deliver:

• None. The port draws up to Class 0 maximum power in low power mode and up to

Class 4 maximum power in high power mode.

• Class. The port power limit is equal to the class of the attached PD.

• User. The port power limit is equal to the value that is specified in the Power Limit

(mW) field. This is the default setting.

Note: If a PD does not report its class correctly, use of these options can

preserve additional PoE power by preventing the switch from delivering more power than the PD requires. However, depending on which option you select, a PD that does not report its class correctly might not power up at all.

11. In the Power Limit (mW) field, enter the maximum power (in mW) that the port can deliver.

The range is 3,000–30,000 mW. The default is 30,000 mW.

12. From the Detection Type menu, select how the port detects the attached PD:

• IEEE 802. The port performs a 4-point resistive detection. This is the default setting.

• 4pt 802.3af + legacy. The port performs a 4-point resistive detection, and if required,

continues with legacy detection.

• legacy. The port performs legacy detection.

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13. From the Timer Schedule menu, select a timer schedule or select None, which is the default selection.

For information about setting up and configuring PoE timer schedules, see Set Up PoE Timer Schedules on page 106.

14. Click the Apply button.

Your settings are saved.

The following table describes the nonconfigurable fields on the page.

Table 22. PoE Port Configuration

Field Description

High Power All ports supports high power mode.

Max Power (W) The maximum power in watts that can be provided by the port.

Class The class defines the range of power that a powered device (PD) is drawing from

the switch. The class definitions are as follows:

• 0: 0.44–16.2W

• 1: 0.44–4.2W

• 2: 0.44–7.4W

• 3: 0.44–16.2W

• 4: 0.44–31.6W

• Unknown. The class cannot be detected, or no PD is attached to the port.

Output Voltage (Volts) The voltage that is delivered to the PD in volts.

Output Current (mA) The current that is delivered to the PD in mA.

Output Power (W) The power that is delivered to the PD in watts.

Status The operational status of the port:

• Disabled. No power is delivered.

• Delivering Power. Power is being drawn by the PD.

• Requesting Power. The port is requesting power.

• Fault. A problem occurred with the power.

• Test. The port is in test mode.

• Other Fault. The port is idle because of an error condition.

• Searching. The port is not in one of the other states in this list.

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Table 22. PoE Port Configuration (continued)

Field Description

Fault Status The error description when the PoE port is in a fault state:

• No Error. The port is not in any error state and can provide power.

• MPS Absent. The port detected the absence of the main power supply,

preventing the port from providing power.

• Short. The port detected a short circuit condition, preventing the port from providing power.

• Overload. The PD that is connected to the port attempts to draw more power than allowed by the port’s settings, preventing the port from providing power at all.

• Power Denied. The port was denied power because of a shortage of power or because of an administrative condition. In this condition, the port cannot provide power.

Configure SNMP

You can configure SNMP settings for SNMPv1/v2 and SNMPv3. The switch software supports the configuration of SNMP groups and users that can manage traps that the SNMP agent generates.

The switch uses both standard public MIBs for standard functionality and private MIBs that support additional switch functionality. All private MIBs begin with a hyphen (-) prefix. The main object for interface configuration is in -SWITCHING-MIB, which is a private MIB. Some interface configurations also involve objects in the public MIB, IF-MIB.

Configure the SNMPv1/v2 Community

Only the communities that you define can access to the switch using the SNMP V1 and SNMP V2 protocols. Only those communities with read/write level access can be used to change the configuration using SNMP.

Add an SNMP Community:

To add an SNMP community:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

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The login window opens.

4. Enter the switch’

The default password is password.

The System Information page displays.

5. Select System > SNMP > SNMP V1/V2 > Community Configuration.

6. In the Management Station IP field, specify the IP address of the management station.

7. In the Management Station IP Mask field, specify the subnet mask to associate with the

management station IP address.

Together, the management station IP address and the management station IP mask denote a range of IP addresses from which SNMP clients can use that community to access this device. If either the management station IP address or management station IP mask value is 0.0.0.0, access is allowed from any IP address. Otherwise, every client’ address is ANDed with the mask, as is the management station IP address. If the values are equal, access is allowed.

For example, if the management station IP address and management station IP mask settings are 192.168.1.0/255.255.255.0, any client with an IP address in the range from

192.168.1.0 to 192.168.1.255 (inclusive) is allowed access. one station, use a management station IP mask value of 255.255.255.255, and use that computer’s IP address as the client address.

s password in the Password field.

To allow access from only

8. In the Community String field, specify a community name.

9. From the Access Mode menu, select the access level for this community Read/Write or Read Only.

10. From the Status menu, select to enable or disable the community

If you select Enable, the community name must be unique among all valid community names or the set requests are rejected. If you select Disable, the community name becomes invalid.

11. Click the Add button.

The selected community is added.

Modify an Existing SNMP Community

To modify an existing SNMP community:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

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, which is either

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2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > SNMP > SNMP V1/V2 > Community Configuration.

The Community Configuration page displays.

6. Select the check box next to the community.

7. Update the desired fields.

8. Click the Apply button.

Your settings are saved.

Delete an SNMP Community

To delete an SNMP community:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > SNMP > SNMP V1/V2 > Community Configuration.

The Community Configuration page displays.

6. Select the check box next to the community to remove.

7. Click the Delete button.

The community is removed.

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Configure SNMPv1/v2 Trap Settings

You can configure settings for each SNMPv1 or SNMPv2 management host that must receive notifications about traps generated by the device. The SNMP management host is also known as the SNMP trap receiver.

Add an SNMP Trap Receiver

To add an SNMP trap receiver:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > SNMP > SNMP V1/V2 > Trap Configuration.

The Trap Configuration page displays.

6. In the Recipients IP field, enter the IPv4 address at which the SNMP traps from the switch must be received.

7. From the Version menu, select the trap version to be used by the SNMP trap receiver.

• SNMPv1. The switch uses SNMPv1 to send traps to the receiver. The default setting

is SNMPv1.

• SNMPv2. The switch uses SNMPv2 to send traps to the receiver.

8. In the Community String field, specify the name of the SNMP community that includes

the SNMP management host and the SNMP agent on the device.

This name can be up to 16 characters and is case-sensitive.

9. From the Status menu, select Enable to send traps to the receiver or select Disable to prevent the switch from sending traps to the receiver.

10. Click the Add button.

The receiver configuration is added.

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Modify Information About an Existing SNMP Recipient

To modify information about an existing SNMP recipient:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > SNMP > SNMP V1/V2 > Trap Configuration.

The Trap Configuration page displays.

6. Select the check box next to the recipient.

7. Change the fields as necessary.

8. Click the Apply button.

Your settings are saved.

Delete an SNMP Recipient

To delete an SNMP trap recipient:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > SNMP > SNMP V1/V2 > Trap Configuration.

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The Trap Configuration page displays.

6. Select the check box next to the recipient to remove.

7. Click the Delete button.

The trap recipient is removed.

Configure SNMPv1/v2 Trap Flags

You can enable or disable traps that the switch can send to an SNMP manager. When the condition identified by an active trap is encountered by the switch, a trap message is sent to any enabled SNMP trap receivers, and a message is written to the trap log.

To configure the trap flags:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > SNMP > SNMP V1/V2 > Trap Flags.

The Trap Flags page displays.

6. Enable or disable the following system traps:

• Authentication. When enabled, SNMP traps are sent when events involving

authentication occur, such as when a user attempts to access the switch local browser interface and does not provide a valid user name and password. The default is Enable.

• Link Up/Down. When enabled, SNMP traps are sent when the administrative or

operational state of a physical or logical link changes. The default is Enable.

• Spanning Tree. When enabled, SNMP traps are sent when various spanning tree

events occur. The default is Enable.

• ACL. When enabled, SNMP traps are sent when a packet matches an ACL rule that

you configured and that includes ACL logging. The default is Disable.

• PoE (model GS324TP only). When enabled, SNMP traps are sent when a PoE event

occurs. The default is Enable

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7. Click the Apply button.

Your settings are saved.

View the Supported MIBs

You can view a list of all MIBs that are supported on the switch.

To view the supported MIBs:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see

Discover or Change the Switch IP

Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > SNMP > SNMP V1/V2 > Supported MIBs.

The following table describes the SNMP Supported MIBs Status fields.

Table 23. SNMP supported MIBs

Field Description

Name The RFC number if applicable and the name of the MIB.

Description The RFC title or MIB description.

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Configure SNMP V3 Users

Any user can connect to the switch using the SNMPv3 protocol, but for authentication and

encryption, the switch supports only one user (admin). Therefore, you can create or modify only one profile.

To configure authentication and encryption settings for the SNMPv3 admin profile by using the web interface:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > SNMP > SNMPv3 > User Configuration.

The User Configuration page displays.

The SNMPv3 Access Mode field shows the access privileges for the user account. Access for the admin account is always Read Write. Access for all other accounts is Read Only.

6. To enable authentication, select an Authentication Protocol radio button.

You can select the MD5 radio button or the SHA radio button. With either of these options, the user login password is used as SNMPv3 authentication password. For information about how to configure the login password, see Local Browser Interface on page 210.

7. To enable encryption:

a. Select the Encryption Protocol DES radio button to encrypt SNMPv3 packets using

the DES encryption protocol.

b. In the Encryption Key field, enter an encryption code of eight or more alphanumeric

characters.

Change the Password for the

8. Click the Apply button.

Your settings are saved.

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Configure LLDP

The IEEE 802.1AB-defined standard, Link Layer Discovery Protocol (LLDP), allows stations on an 802 LAN to advertise major capabilities and physical descriptions. A network manager can view this information to identify system topology and detect bad configurations on the LAN.

The following sections describe how you can configure LLDP:

• Configure LLDP Global Settings on page 85

• Configure LLDP Port Settings on page 87

• View the LLDP-MED Network Policy on page 88

• Configure LLDP-MED Port Settings on page 90

• View the LLDP-MED Neighbors Information on page 91

• View the Local Information Advertised Through LLDP on page 93

• View LLDP Neighbors Information on page 96

LLDP is a one-way protocol without any request/response sequences. Information is advertised by stations implementing the transmit function, and is received and processed by stations implementing the receive function. The transmit and receive functions can be enabled or disabled separately per port. By default, both transmit and receive are disabled on all ports. The application is responsible for starting each transmit and receive state machine appropriately, based on the configured status and operational state of the port.

The Link Layer Discovery Protocol-Media Endpoint Discovery (LLDP-MED) is an enhancement to LLDP with the following features:

• Autodiscovery of LAN policies (such as VLAN, Layer 2 priority, and DiffServ settings), enabling plug and play networking.

• Device location discovery for creation of location databases.

• Extended and automated power management of Power over Ethernet endpoints.

• Inventory management, enabling network administrators to track their network devices

and determine their characteristics (manufacturer, software and hardware versions, serial/asset number).

Configure LLDP Global Settings

You can specify the global LLDP and LLDP-MED settings that are applied to the switch.

To configure global LLDP settings:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

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3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see

Discover or Change the Switch IP

Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > LLDP > Basic > LLDP Configuration.

6. To configure nondefault values for the following LLDP properties, specify the following

options:

• TLV Advertised Interval.

The number of seconds between transmissions of LLDP

advertisements.

• Hold Multiplier.

The transmit interval multiplier value, where transmit hold multiplier ×

transmit interval = the time to live (TTL) value that the device advertises to neighbors.

• Re-initializing Delay.

The number of seconds to wait before attempting to re-initialize

LLDP on a port after the LLDP operating mode on the port changes.

• Transmit Delay.

The minimum number of seconds to wait between transmissions of remote data change notifications to one or more SNMP trap receivers configured on the switch.

7. To configure a nondefault value for LLDP-MED, enter a value in the Fast Start Duration field.

This value sets the number of LLDP packets sent when the LLDP-MED fast start mechanism is initialized, which occurs when a new endpoint device links with the LLDP-MED network connectivity device.

8. Click the Apply button.

Your settings are saved.

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Configure LLDP Port Settings

You can specify per-interface LLDP settings.

To configure the LLDP interface:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see Address on page 12.

The login window opens.

4. Enter the switch’

The default password is password.

The System Information page displays.

5. Select System > LLDP >

s password in the Password field.

Advanced > LLDP Port Settings.

Discover or Change the Switch IP

6. Select one or more interfaces by taking one of the following actions: o configure a single interface, select the check box associated with the port, or type

• T the port number in the Go To Interface field and click the Go button.

• T

o configure multiple interfaces with the same settings, select the check box

associated with each interface.

• T

o configure all interfaces with the same settings, select the check box in the heading

row.

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7. Use the following menus to configure the LLDP settings for the selected ports:

• Admin Status. Select the status for transmitting and receiving LLDP packets:

- Tx Only. Enable only transmitting LLDP PDUs on the selected ports.

- Rx Only. Enable only receiving LLDP PDUs on the selected ports.

- Tx and Rx. Enable both transmitting and receiving LLDP PDUs on the selected

ports.

- Disabled. Do not transmit or receive LLDP PDUs on the selected ports.

The default is Tx and Rx.

• Management IP Address. Choose whether to advertise the management IP address from the interface. The possible field values are as follows:

- Stop Advertise. Do not advertise the management IP address from the interface.

- Auto Advertise. Advertise the current IP address of the device as the

management IP address.

The default is Auto Advertise.

• Notification. When notifications are enabled, LLDP interacts with the trap manager to notify subscribers of remote data change statistics. The default is Disable.

• Optional TLVs. Enable or disable the transmission of optional type-length value (TLV) information from the interface. The default is Enable. The TLV information includes the system name, system description, system capabilities, and port description.

For information about how to configure the system name, see View and Configure the Switch Management Settings on page 32. For information about how to configure the port description, see Configure the Port Settings and Maximum Frame Size on page 114.

8. Click the Apply button.

Your settings are saved.

View the LLDP-MED Network Policy

You can display information about the LLPD-MED network policy TLV transmitted in the LLDP frames on the selected local interface.

To view LLDP-MED network policy information for an interface:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

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The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > LLDP >

Advanced > LLDP-MED Network Policy.

The LLDP-MED Network Policy page displays.

6. From the Interface menu, select the interface for which you want to view the information.

Note: The menu includes only the interfaces on which LLDP is enabled. If no

interfaces are enabled for LLDP, the Interface menu does not display.

o refresh the page with the latest data transmitted in the network policy TLVs for the

7. T interface, click the Refresh button.

The following table describes the LLDP-MED network policy information that displays on the page.

Table 24. LLDP-MED network policy information

Field Description

Network Policy Number The policy number.

Application The media application type associated with the policy, which can be one of the

following:

• Unknown

• V

oice

• Guest V

• Softphone V

• V

• Streaming V

• V

A port can receive multiple application types. The application information is

displayed only if a network policy

VLAN ID The VLAN ID associated with the policy.

VLAN Type Indicates whether the VLAN associated with the policy is tagged or untagged.

User Priority The priority associated with the policy.

DSCP The DSCP associated with a particular policy type.

oice oice Signaling

oice

ideo Conferencing

ideo

ideo Signaling

TLV was transmitted from the port.

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Configure LLDP-MED Port Settings

You can enable LLDP-MED mode on an interface and configure its properties.

To configure LLDP-MED settings for a port:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > LLDP > Advanced > LLDP-MED Port Settings.

The LLDP-MED Port Settings page displays.

6. From the Port menu, select the port to configure.

7. Use the following menus to enable or disable the following LLDP-MED settings for the

selected port:

• LLDP-MED Status. The administrative status of LLDP-MED on the interface. When

LLDP-MED is enabled, the transmit and receive function of LLDP is effectively enabled on the interface.

• Notification. When Notification is enabled, the port sends a topology change

notification if a device is connected or removed.

• MED Capabilities. When MED Capabilities is enabled, the port transmits the

capabilities type length values (TLVs) in the LLDP PDU frames.

• Network Policy. When Network Policy is enabled, the port transmits the network

policy TLV in LLDP frames.

• Extended MDI-PSE. When Extended MDI-PSE is enabled, the port transmits the

extended PSE TLV in LLDP frames.

8. Click the Apply button.

Your settings are saved.

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View the LLDP-MED Neighbors Information

You can display the LLDP-MED neighbor or remote device information for an interface.

To view LLDP-MED Neighbor Information:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > LLDP > Advanced > LLDP-MED Neighbors Information.

The page that displays shows multiple sections with information about LLDP-MED neighbors.

6. From the Interface menu, select an interface.

The menu includes only the interfaces for which LLDP is enabled.

7. To refresh the page with the latest information about the switch, click the Refresh button.

The following table describes the non-configurable LLDP-MED Neighbors Information that displays for the selected interface.

Field Description

LLDP-MED Interface Selection

Remote ID Specifies the remote client identifier assigned to the remote system.

Capability Information

This section of the page specifies the supported and enabled capabilities that are received in MED TLV on this port.

Supported Capabilities Specifies supported capabilities that are received in MED TLV on this port.

Enabled Capabilities Specifies enabled capabilities that are received in MED TLV on this port.

Device Class Specifies device class as advertised by the device remotely connected to the

port.

Network Policies Information

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Field Description

This section of the page specifies if network policy TLV is received in the LLDP frames on this port.

Media Application Type Specifies the application type: unknown, voicesignaling, guestvoice,

guestvoicesignalling, softphonevoice, videoconferencing, streamingvideo, or videosignaling.

Information for each application type includes the VLAN ID, priority, DSCP, tagged bit status and unknown bit status. A port can receive information about one or many of such application types. The application type is displayed only if a network policy TLV is received on a port.

VLAN ID Specifies the VLAN ID associated with a particular policy type.

Priority Specifies the priority associated with a particular policy type.

DSCP Specifies the DSCP associated with a particular policy type.

Unknown Bit Status Specifies the unknown bit associated with a particular policy type.

Tagged Bit Status Specifies the tagged bit associated with a particular policy type.

Inventory Information

This section of the page specifies if inventory TLV is received in LLDP frames on this port.

Hardware Revision Specifies the hardware version of the remote device.

Firmware Revision Specifies the firmware version of the remote device.

Software Revision Specifies software version of the remote device.

Serial Number Specifies the serial number of the remote device.

Manufacturer Name Specifies the manufacturer’s name of the remote device.

Model Name Specifies the model name of the remote device.

Asset Id Specifies the asset ID of the remote device.

Location Information

This section of the page specifies if location TLV is received in LLDP frames on this port.

Sub Type Specifies the type of location information.

Location Information Specifies the location information as a string for a given type of location ID.

Extended PoE

This section of the page specifies if the remote device is a PoE device.

Device Type Specifies the remote device’s PoE device type connected to this port.

Extended PoE PSE

This section of the page specifies if extended PSE TLV is received in LLDP frame on this port.

Device Type Specifies the remote device’s PoE device type connected to this port.

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Field Description

Power Source Specifies the remote port’s PSE power source.

Power Priority Specifies the remote port’s PSE power priority.

Power Value Specifies the remote port’s PSE power value in tenths of watts.

Extended PoE PD

This section of the page specifies if extended PD TLV is received in LLDP frame on this port.

Device Type Specifies the remote device’s PoE device type connected to this port.

Power Source Specifies the remote port’s PD power source.

Power Priority Specifies the remote port's PD power priority.

Power Value Specifies the remote port's PD power requirement.

View the Local Information Advertised Through LLDP

You can view the data that each port advertises through LLDP.

To view local LLDP information:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > LLDP > Advanced > Local Information.

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The page includes only the interfaces on which LLDP is enabled.

6. T

o refresh the page with the latest information about the switch, click the Refresh button.

The following table describes the LLDP device information and port summary information.

Field Description

Device Information

Chassis ID Subtype The type of information used to identify the switch in the Chassis ID field.

Chassis ID The hardware platform identifier for the switch.

System Name The user-configured system name for the switch.

System Description The switch description, which includes information about the product model

and platform.

System Capabilities The primary functions that the switch supports.

Port Information

Interface The interface associated with the rest of the data in the row.

Port ID Subtype The type of information used to identify the interface in the Port ID field.

Port ID The port number.

Port Description The user-defined description of the port. For information about how to

configure the port description, see

Configure the Port Settings and

Maximum Frame Size on page 114.

Advertisement The TLV advertisement status of the port.

7. To view additional details about a port, click the name of the port in the Interface column of the Port Information table.

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The following table describes the detailed local information that displays for the selected port.

Field Description

Managed Address

Address SubType The type of address the management interface uses, such as an IPv4

address.

Address The address used to manage the device.

Interface SubType The port subtype.

Interface Number The number that identifies the port.

MAC/PHY Details

Auto Negotiation Supported Indicates whether the interface supports port speed autonegotiation. The

option is

Auto Negotiation Enabled The port speed autonegotiation support status. The option is True (enabled)

or False (disabled).

True (enabled) or False (disabled).

Auto Negotiation Advertised Capabilities

Operational MAU Type The Medium Attachment Unit (MAU) type. The MAU performs physical layer

MED Details

Capabilities Supported The MED capabilities enabled on the port.

Current Capabilities The TLVs advertised by the port.

Device Class Network Connectivity indicates that the device is a network connectivity

Network Policies

Application Type The media application type associated with the policy.

VLAN ID The VLAN ID associated with the policy.

VLAN Type Specifies whether the VLAN associated with the policy is tagged or untagged.

User Priority The priority associated with the policy.

DSCP The DSCP associated with a particular policy type.

The port speed autonegotiation capabilities such as 1000BASE-T half-duplex mode or 100BASE-TX full-duplex mode.

functions, including digital data conversion from the Ethernet interface collision detection and bit injection into the network.

device.

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View LLDP Neighbors Information

You can view the data that a specified interface received from other LLDP-enabled systems.

To view LLDP information received from a neighbor device:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

f-network using an Ethernet cable.

, enter the IP address of the switch.

If you do not know the IP address of the switch, see

Discover or Change the Switch IP

Address on page 12.

The login window opens.

4. Enter the switch’

s password in the Password field.

The default password is password.

The System Information page displays.

5. Select System > LLDP >

Advanced > Neighbors Information.

The Neighbors Information page displays.

If no information was received from a neighbor device, or if the link partner is not LLDP-enabled, no information displays.

6. T

o refresh the page with the latest LLDP neighbor information, click the Refresh button.

The following table describes the information that displays for all LLDP neighbors that were discovered.

Field Description

MSAP Entry The Media Service Access Point (MSAP) entry number for the remote

device.

Local Port The interface on the local system that received LLDP information from a

remote system.

Chassis ID Subtype The type of data displayed in the Chassis ID field on the remote system.

Chassis ID The remote 802 LAN device’s chassis.

Port ID Subtype The type of data displayed in the remote system’s Port ID field.

Port ID The physical address of the port on the remote system from which the data

was sent.

System Name The system name associated with the remote device. If the field is blank, the

name might not be configured on the remote system.

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7. To view additional information about the remote device, click the link in the MSAP Entry column.

A pop-up window displays information for the selected port.

The following table describes the information transmitted by the neighbor.

Field Description

Port Details

Local Port The interface on the local system that received LLDP information from a

remote system.

MSAP Entry The Media Service Access Point (MSAP) entry number for the remote device.

Basic Details

Chassis ID Subtype The type of data displayed in the Chassis ID field on the remote system.

Chassis ID The remote 802 LAN device’s chassis.

Port ID Subtype The type of data displayed in the remote system’s Port ID field.

Port ID The physical address of the port on the remote system from which the data

was sent.

Port Description The user-defined description of the port.

System Name The system name associated with the remote device.

System Description The description of the selected port associated with the remote system.

System Capabilities The system capabilities of the remote system.

Managed Addresses

Address SubType The type of the management address.

Address The advertised management address of the remote system.

Interface SubType The port subtype.

Interface Number The port on the remote device that sent the information.

MAC/PHY Details

Auto-Negotiation Supported Specifies whether the remote device supports port-speed autonegotiation.

The option is True (enabled) or False (disabled).

Auto-Negotiation Enabled The port speed autonegotiation support status. The option is True (enabled)

or False (disabled).

Auto Negotiation Advertised Capabilities

Operational MAU Type The Medium Attachment Unit (MAU) type. The MAU performs physical layer

The port speed autonegotiation capabilities.

functions, including digital data conversion from the Ethernet interface collision detection and bit injection into the network.

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Field Description

MED Details

Capabilities Supported The supported capabilities that were received in MED TLV from the device.

Current Capabilities The advertised capabilities that were received in MED TLV from the device.

Device Class The LLDP-MED endpoint device class. The possible device classes are as

follows:

• Endpoint Class 1 Indicates a generic endpoint class, offering basic LLDP services.

• Endpoint Class 2 Indicates a media endpoint class, offering media streaming capabilities as well as all Class 1 features.

• Endpoint Class 3 Indicates a communications device class, offering all Class 1 and Class 2 features plus location, 911, Layer 2 switch support, and device information management capabilities.

PoE Device Type The port PoE type. For example, Powered.

PoE Power Source The port’s power source.

PoE Power Priority The port’s power priority.

PoE Power Value The port’s power value.

Hardware Revision The hardware version advertised by the remote device.

Firmware Revision The firmware version advertised by the remote device.

Software Revision The software version advertised by the remote device.

Serial Number The serial number advertised by the remote device.

Model Name The model name advertised by the remote device.

Asset ID The asset ID advertised by the remote device.

Location Information

Civic The physical location, such as the street address, that the remote device

advertised in the location TLV, for example, 123 45th St. E. The field value length range is 6–160 characters.

Coordinates The location map coordinates that the remote device advertised in the

location TLV, including latitude, longitude, and altitude.

ECS ELIN The Emergency Call Service (ECS) Emergency Location Identification

Number (ELIN) that the remote device advertised in the location TLV. The field range is 10–25.

Unknown The unknown location information for the remote device.

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Field Description

Network Policies

Application Type The media application type associated with the policy advertised by the

remote device.

VLAN ID The VLAN ID associated with the policy.

VLAN Type Specifies whether the VLAN associated with the policy is tagged or untagged.

User Priority The priority associated with the policy.

DSCP The DSCP associated with a particular policy type.

LLDP Unknown TLVs

Type The unknown TLV type field.

Value The unknown TLV value field.

Configure DHCP Snooping

DHCP snooping is a useful feature that provides security by filtering untrusted DHCP messages and by building and maintaining a DHCP snooping binding table. An untrusted message is a message that is received from outside the network or firewall and that can cause traffic attacks within your network. The DHCP snooping binding table contains the MAC address, IP address, lease time, binding type, VLAN number, and interface information that corresponds to the local untrusted interfaces of a switch. An untrusted interface is an interface that is configured to receive messages from outside the network or firewall. A trusted interface is an interface that is configured to receive only messages from within the network.

DHCP snooping acts like a firewall between untrusted hosts and DHCP servers. It also provides way to differentiate between untrusted interfaces connected to the end user and trusted interfaces connected to the DHCP server or another switch.

Configure the Global DHCP Snooping Settings

You can view and configure the global settings for DHCP snooping.

To configure the global DHCP snooping settings:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is off-network using an Ethernet cable.

2. Launch a web browser.

3. In the address field of your web browser, enter the IP address of the switch.

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If you do not know the IP address of the switch, see Discover or Change the Switch IP Address on page 12.

The login window opens.

4. Enter the switch’

The default password is password.

The System Information page displays.

5. Select System> Services > DHCP Snooping > Global Configuration.

6. Select the DHCP Snooping Mode Enable radio button.

The default is Disable.

7. T

o enable the verification of the sender’s MAC address for DHCP snooping, leave the MAC

Address Validation Enable radio button selected.

The default is Enable.

s password in the Password field.

When MAC address validation is enabled, the device checks packets that are received on an untrusted interface to verify that the MAC address and the DHCP client hardware address match. If the addresses do not match, the device drops the packet.

8. Click the Apply button.

Your settings are saved.

Enable DHCP for All Interfaces in a VLAN

To enable DHCP snooping for all interfaces that are members of a VLAN:

1. Connect your computer to the same network as the switch.

You can use a WiFi or wired connection to connect your computer to the network, or connect directly to a switch that is of

2. Launch a web browser.

3. In the address field of your web browser

If you do not know the IP address of the switch, see Address on page 12.

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f-network using an Ethernet cable.

, enter the IP address of the switch.

Discover or Change the Switch IP

Netgear GS348T, GS324TP User guide

S350 Series 24-Port (PoE+) and 48-Port Gigabit Ethernet Smart Switches with 2 or 4 SFP Ports

Contents

1Get Started

Available Publications

Switch Management and Discovery Overview

Options to Change the Default IP Address of the Switch

Discover or Change the Switch IP Address

Discover the Switch in a Network With a DHCP Server

Discover the Switch in a Network Without a DHCP Server

Use the NETGEAR Switch Discovery Tool to Access the Switch

Configure a Static IP Address From a Directly Connected Computer

About the User Interfaces

Software Requirements to Use the Local Browser Interface

Supported Web Browsers

Access the Local Browser Interface

Navigation Tabs, Configuration Menus, and Page Menu

Configuration and Status Options

Buttons in the Local Browser Interface

User-Defined Fields

Change the Language of the Local Browser Interface

Use the Device View of the Local Browser Interface

Power LED in the Device View

Fan LED in the Device View (Models GS324TP and GS348T)

PoE Max LED in the Device View (Model GS324TP)

Interface Naming Conventions

Configure Interface Settings

Context-Sensitive Help and Access to the Support WebSite

Access the User Manual Online

Register Your Product

2Configure System Information

View and Configure the Switch Management Settings

View or Define System Information

View the System CPU Status

Configure the IP Network and VLAN Settings for the Local Browser Interface

Change the Management VLAN

Configure the Time Settings

Configure Denial of Service Settings

Configure DNS Settings

Configure Green Ethernet Settings

Use the Device View

Configure PoE

Configure the Global PoE Settings

Configure the PoE Port Settings

Configure SNMP

Configure the SNMPv1/v2 Community

Configure SNMPv1/v2 Trap Settings

Configure SNMPv1/v2 Trap Flags

View the Supported MIBs

Configure SNMP V3 Users

Configure LLDP

Configure LLDP Global Settings

Configure LLDP Port Settings

View the LLDP-MED Network Policy

Configure LLDP-MED Port Settings

View the LLDP-MED Neighbors Information

View the Local Information Advertised Through LLDP

View LLDP Neighbors Information

Configure DHCP Snooping

Configure the Global DHCP Snooping Settings

Enable DHCP for All Interfaces in a VLAN