Dell PowerSwitch N3000 User Manual

Dell EMC Networking N-Series

N1100-ON, N1500, N2000,

N2100-ON, N3000, N3000-ON,

N3100-ON, and N4000

Switches

User’s Configuration

Guide

Version 6.5.2.x - N2000/N2100-ON/N3000/N3000-ON/

N3100-ON/N4000 Series Switches

Version 6.4.x.x - N1100-ON Series Switches

Regulatory Models: E04W, E05W, E06W,

E07W, E15W, E16W, E17W, E18W,

PowerConnect 8132, PowerConnect 8132F,

PowerConnect 8164, PowerConnect 8164F

Notes and Cautions

NOTE: A NOTE indicates important information that helps you make better use of your computer.

CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed.

____________

Information in this publication is subject to change without notice.

Copyright © 2018 Dell EMC Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. Dell EMC™ and the Dell EMC logo are trademarksofDellEMCInc.intheUnitedStatesand/orotherjurisdictions.Allothermarksandnames mentioned herein may be trademarks of their respective companies.

Marketing Models: N1108T-ON, N1108P-ON, N1124T-ON, N1124P-ON, N1148T-ON, N1148P-ON, N1524, N1524P, N1548, N1548P, N2024, N2024P, N2048, N2048P, N2128PX-ON, N3024, N3024F, N3024P, N3048, N3048P, N3024EP-ON, N3024ET-ON, N3024EF-ON, N3048ET-ON, N3048EP-ON, N3132PX-ON, N4032, N4032F, N4064, N4064F

Regulatory Models: E04W, E05W, E06W, E07W, E15W, E16W, E17W, E18W, PowerConnect 8132, PowerConnect 8132F, PowerConnect 8164, PowerConnect 8164F

June 2018

Rev. A06

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . .	57
About This Document . . . . . . . . . . . . . . . . . .	57
Audience . . . . . . . . . . . . . . . . . . . . . . . . .	58
Document Conventions . . . . . . . . . . . . . . . . .	58
Additional Documentation. . . . . . . . . . . . . . . .	59

2 Switch Feature Overview . . . . . . . . . . . .	61
System Management Features . . . . . . . . . . . . .	62
Multiple Management Options . . . . . . . . . . .	62
System Time Management . . . . . . . . . . . . .	62
Log Messages . . . . . . . . . . . . . . . . . . .	63
System Reset . . . . . . . . . . . . . . . . . . . .	63
Integrated DHCP Server . . . . . . . . . . . . . .	63
Management of Basic Network Information . . . .	64
IPv6 Management Features . . . . . . . . . . . .	64
Dual Software Images . . . . . . . . . . . . . . .	64
File Management . . . . . . . . . . . . . . . . . .	65
Switch Database Management Templates . . . .	65
Automatic Installation of Firmware and	65
Configuration . . . . . . . . . . . . . . . . . . . .
sFlow . . . . . . . . . . . . . . . . . . . . . . . .	66
SNMP Alarms and Trap Logs. . . . . . . . . . . .	66
CDP Interoperability Through ISDP . . . . . . . .	67
Remote Monitoring (RMON) . . . . . . . . . . . .	67
N3000 Series Advanced and Advanced-Lite	67
Firmware Images . . . . . . . . . . . . . . . . . .
Contents			3

Stacking Features . . . . . . . . . . . . . . . . . . . .	70
Mixed and Single Series Stacking . . . . . . . . .	70
Single IP Management . . . . . . . . . . . . . . .	71
Master Failover with Transparent Transition. . . .	71
Nonstop Forwarding on the Stack . . . . . . . . .	72
Hot Add/Delete and Firmware Synchronization . .	72

Security Features . . . . . . . . . . . . . . . . . . . .	73
Configurable Access and Authentication	73
Profiles . . . . . . . . . . . . . . . . . . . . . . .
Password-Protected Management Access . . . .	73
Strong Password Enforcement . . . . . . . . . . .	73
TACACS+ Client . . . . . . . . . . . . . . . . . . .	73
RADIUS Support . . . . . . . . . . . . . . . . . .	74
SSH/SSL. . . . . . . . . . . . . . . . . . . . . . .	74
Inbound Telnet Control . . . . . . . . . . . . . . .	74
Denial of Service . . . . . . . . . . . . . . . . . .	74
Port Protection . . . . . . . . . . . . . . . . . . .	75
Captive Portal . . . . . . . . . . . . . . . . . . . .	76
802.1X Authentication (IEEE 802.1X) . . . . . . . .	76
MAC-Based 802.1X Authentication . . . . . . . . .	77
802.1X Monitor Mode . . . . . . . . . . . . . . . .	77
Port Security . . . . . . . . . . . . . . . . . . . .	77
Access Control Lists (ACLs) . . . . . . . . . . . .	78
Time-Based ACLs . . . . . . . . . . . . . . . . . .	78
IP Source Guard (IPSG) . . . . . . . . . . . . . . .	78
DHCP Snooping . . . . . . . . . . . . . . . . . . .	79
Dynamic ARP Inspection . . . . . . . . . . . . . .	79
Protected Ports (Private VLAN Edge). . . . . . . .	79

Green Technology Features . . . . . . . . . . . . . . .	80
Energy Detect Mode . . . . . . . . . . . . . . . .	80
Energy Efficient Ethernet . . . . . . . . . . . . . .	80
Power Utilization Reporting. . . . . . . . . . . . .	81

4 Contents

Power over Ethernet (PoE) Plus Features . . . . . . . .	81
Key PoE Plus Features for the Dell EMC Networking
N1108P-ON, N1124P-ON, N1148P-ON, N2024P,
N2048P, N2128PX-ON, N3024P, N3048P,
N3024EP-ON, N3048EP-ON, and
N3132PX-ON Switches . . . . . . . . . . . . . . .	81
Power Over Ethernet (PoE) Plus Configuration . .	82
PoE Plus Support . . . . . . . . . . . . . . . . . .	82
PoE 60W Support . . . . . . . . . . . . . . . . . .	83
Powered Device Detection . . . . . . . . . . . . .	83
PoE Power Management Modes . . . . . . . . . .	83
Power Management in Guard Band . . . . . . . .	85
PoE Plus Default Settings. . . . . . . . . . . . . .	86

Switching Features . . . . . . . . . . . . . . . . . . .	88
Flow Control Support (IEEE 802.3x) . . . . . . . . .	88
Head of Line Blocking Prevention . . . . . . . . .	88
Alternate Store and Forward (ASF). . . . . . . . .	88
Jumbo Frames Support . . . . . . . . . . . . . . .	88
Auto-MDI/MDIX Support . . . . . . . . . . . . . .	89
VLAN-Aware MAC-based Switching. . . . . . . .	89
Back Pressure Support . . . . . . . . . . . . . . .	89
Auto-negotiation . . . . . . . . . . . . . . . . . .	90
Storm Control . . . . . . . . . . . . . . . . . . . .	90
Port Mirroring. . . . . . . . . . . . . . . . . . . .	90
Static and Dynamic MAC Address Tables . . . . .	91
Link Layer Discovery Protocol (LLDP) . . . . . . .	91
Link Layer Discovery Protocol (LLDP) for Media	91
Endpoint Devices . . . . . . . . . . . . . . . . . .
Connectivity Fault Management (IEEE 802.1ag) . .	92
Priority-based Flow Control (PFC) . . . . . . . . .	92
Data Center Bridging Exchange (DBCx)	93
Protocol . . . . . . . . . . . . . . . . . . . . . . .
Enhanced Transmission Selection . . . . . . . . .	93
Cisco Protocol Filtering . . . . . . . . . . . . . . .	93

Contents 5

DHCP Layer-2 Relay. . . . . . . . . . . . . . . . .	94
Virtual Local Area Network Supported Features . . . .	95
VLAN Support . . . . . . . . . . . . . . . . . . . .	95
Port-Based VLANs . . . . . . . . . . . . . . . . .	95
IP Subnet-based VLAN . . . . . . . . . . . . . . .	95
MAC-based VLAN. . . . . . . . . . . . . . . . . .	95
IEEE 802.1v Protocol-Based VLANs. . . . . . . . .	95
Voice VLAN . . . . . . . . . . . . . . . . . . . . .	96
GARP and GVRP Support . . . . . . . . . . . . . .	96
Guest VLAN . . . . . . . . . . . . . . . . . . . . .	96
Unauthorized VLAN . . . . . . . . . . . . . . . . .	96
Double VLANs. . . . . . . . . . . . . . . . . . . .	96
Spanning Tree Protocol Features . . . . . . . . . . . .	98
Spanning Tree Protocol (STP) . . . . . . . . . . .	98
Spanning Tree Port Settings . . . . . . . . . . . .	98
Rapid Spanning Tree . . . . . . . . . . . . . . . .	98
Multiple Spanning Tree . . . . . . . . . . . . . . .	98
Bridge Protocol Data Unit (BPDU) Guard. . . . . .	99
BPDU Filtering. . . . . . . . . . . . . . . . . . . .	99
RSTP-PV and STP-PV . . . . . . . . . . . . . . . .	99
Link Aggregation Features. . . . . . . . . . . . . . . .	100
Link Aggregation . . . . . . . . . . . . . . . . . .	100
Link Aggregate Control Protocol (LACP) . . . . . .	101
Multi-Switch LAG (MLAG) . . . . . . . . . . . . .	101
Routing Features . . . . . . . . . . . . . . . . . . . . .	102
Address Resolution Protocol (ARP) Table	102
Management . . . . . . . . . . . . . . . . . . . .
VLAN Routing . . . . . . . . . . . . . . . . . . . .	102
IP Configuration . . . . . . . . . . . . . . . . . . .	102
Open Shortest Path First (OSPF) . . . . . . . . . .	103
Border Gateway Protocol (BGP) . . . . . . . . . .	103

6 Contents

Virtual Routing and Forwarding (VRF) . . . . . . .	103
BOOTP/DHCP Relay Agent . . . . . . . . . . . . .	104
IP Helper and DHCP Relay . . . . . . . . . . . . .	104
Routing Information Protocol . . . . . . . . . . . .	104
Router Discovery . . . . . . . . . . . . . . . . . .	104
Routing Table . . . . . . . . . . . . . . . . . . . .	104
Virtual Router Redundancy Protocol (VRRP) . . . . 105
Tunnel and Loopback Interfaces . . . . . . . . . .	105
IPv6 Routing Features . . . . . . . . . . . . . . . . . .	106
IPv6 Configuration . . . . . . . . . . . . . . . . .	106
IPv6 Routes . . . . . . . . . . . . . . . . . . . . .	106
OSPFv3 . . . . . . . . . . . . . . . . . . . . . . .	106
DHCPv6 . . . . . . . . . . . . . . . . . . . . . . .	106
Quality of Service (QoS) Features . . . . . . . . . . . .	107
Differentiated Services (DiffServ) . . . . . . . . .	107
Class Of Service (CoS) . . . . . . . . . . . . . . .	107
Auto Voice over IP (VoIP). . . . . . . . . . . . . .	107
Internet Small Computer System Interface	108
(iSCSI) Optimization. . . . . . . . . . . . . . . . .
Layer-2 Multicast Features . . . . . . . . . . . . . . .	108
MAC Multicast Support. . . . . . . . . . . . . . .	108
IGMP Snooping . . . . . . . . . . . . . . . . . . .	108
IGMP Snooping Querier . . . . . . . . . . . . . .	109
MLD Snooping . . . . . . . . . . . . . . . . . . .	109
Multicast VLAN Registration . . . . . . . . . . . .	109
Layer-3 Multicast Features . . . . . . . . . . . . . . .	110
Distance Vector Multicast Routing Protocol . . . . 110
Internet Group Management Protocol . . . . . . .	110
IGMP Proxy . . . . . . . . . . . . . . . . . . . . .	110
Protocol Independent Multicast—Dense Mode . .	110

Contents 7

Protocol Independent Multicast—Sparse

Mode . . . . . . . . . . . . . . . . . . . . . . . .	111
Protocol Independent Multicast—Source	111
Specific Multicast. . . . . . . . . . . . . . . . . .
Protocol Independent Multicast IPv6 Support . . .	111
MLD/MLDv2 (RFC2710/RFC3810) . . . . . . . . . .	111

3 Hardware Overview . . . . . . . . . . . . . . . . 113

Dell EMC Networking N1100-ON Series Switch

Hardware. . . . . . . . . . . . . . . . . . . . . . . . .	113
Front Panel . . . . . . . . . . . . . . . . . . . . .	113
Power Supply . . . . . . . . . . . . . . . . . . . .	116
Ventilation System . . . . . . . . . . . . . . . . .	116
Thermal Shutdown . . . . . . . . . . . . . . . . .	116
LED Definitions . . . . . . . . . . . . . . . . . . .	116
Power Consumption for PoE Switches . . . . . . .	120
Wall Installation. . . . . . . . . . . . . . . . . . .	121
Dell EMC Networking N1500 Series Switch
Hardware. . . . . . . . . . . . . . . . . . . . . . . . .	123
Front Panel . . . . . . . . . . . . . . . . . . . . .	123
Back Panel . . . . . . . . . . . . . . . . . . . . .	126
LED Definitions . . . . . . . . . . . . . . . . . . .	128
Power Consumption for PoE Switches . . . . . . .	130
Dell EMC Networking N2000 Series Switch
Hardware. . . . . . . . . . . . . . . . . . . . . . . . .	132
Front Panel . . . . . . . . . . . . . . . . . . . . .	132
Back Panel . . . . . . . . . . . . . . . . . . . . .	135
LED Definitions . . . . . . . . . . . . . . . . . . .	137
Power Consumption for PoE Switches . . . . . . .	140
Dell EMC Networking N2100-ON Series Switch
Hardware. . . . . . . . . . . . . . . . . . . . . . . . .	142

8 Contents

Front Panel . . . . . . . . . . . . . . . . . . . . .	142
Back Panel . . . . . . . . . . . . . . . . . . . . .	144
LED Definitions . . . . . . . . . . . . . . . . . . .	144
Power Consumption for PoE Switches . . . . . . .	148
Dell EMC Networking N3000/N3000E-ON Series
Switch Hardware . . . . . . . . . . . . . . . . . . . .	151
Front Panel . . . . . . . . . . . . . . . . . . . . .	151
Back Panel . . . . . . . . . . . . . . . . . . . . .	157
LED Definitions . . . . . . . . . . . . . . . . . . .	159
Power Consumption for PoE Switches . . . . . . .	164
Dell EMC Networking N3100-ON Series Switch
Hardware. . . . . . . . . . . . . . . . . . . . . . . . .	166
Front Panel . . . . . . . . . . . . . . . . . . . . .	166
Back Panel . . . . . . . . . . . . . . . . . . . . .	168
LED Definitions . . . . . . . . . . . . . . . . . . .	168
Power Consumption for PoE Switches . . . . . . .	173
PoE Power Budget Limit . . . . . . . . . . . . . .	175
Dell EMC Networking N4000 Series Switch
Hardware. . . . . . . . . . . . . . . . . . . . . . . . .	176
Front Panel . . . . . . . . . . . . . . . . . . . . .	176
Back Panel . . . . . . . . . . . . . . . . . . . . .	180
LED Definitions . . . . . . . . . . . . . . . . . . .	182
Switch MAC Addresses . . . . . . . . . . . . . . . . .	186

4Using Dell EMC OpenManage Switch

Administrator . . . . . . . . . . . . . . . . . . . . . 189

About Dell EMC OpenManage Switch Administrator .	189
Starting the Application . . . . . . . . . . . . . . . . .	190
Understanding the Interface. . . . . . . . . . . . . . .	191

Contents 9

Using the Switch Administrator Buttons and Links . . . 193

Defining Fields . . . . . . . . . . . . . . . . . . . . . .	194
Understanding the Device View . . . . . . . . . . . . .	194
Using the Device View Port Features. . . . . . . .	194
Using the Device View Switch Locator
Feature . . . . . . . . . . . . . . . . . . . . . . .	195

5 Using the Command-Line Interface . . . . 197

Accessing the Switch Through the CLI . . . . . . . . . 197

Console Connection. . . . . . . . . . . . . . . . . 197 Telnet Connection. . . . . . . . . . . . . . . . . . 198

Understanding Command Modes . . . . . . . . . . . . 199

Entering CLI Commands . . . . . . . . . . . . . . . . . 201

Using the Question Mark to Get Help. . . . . . . . 201 Using Command Completion . . . . . . . . . . . . 202 Entering Abbreviated Commands. . . . . . . . . . 202 Negating Commands . . . . . . . . . . . . . . . . 202 Command Output Paging . . . . . . . . . . . . . . 202 Understanding Error Messages . . . . . . . . . . 203 Recalling Commands from the History Buffer . . . 203

6Default Settings . . . . . . . . . . . . . . . . . . . 205

7Setting the IP Address and Other

Basic Network Information . . . . . . . . . . 209

IP Address and Network Information Overview . . . . 209

What Is the Basic Network Information?. . . . . . 209

10 Contents

Why Is Basic Network Information Needed? . . . 210 How Is Basic Network Information Configured? . . 211 What Is Out-of-Band Management and In-Band

Management? . . . . . . . . . . . . . . . . . . .	211
Default Network Information . . . . . . . . . . . . . .	214
Configuring Basic Network Information (Web) . . . . .	215
Out-of-Band Interface . . . . . . . . . . . . . . .	215
IP Interface Configuration (Default VLAN IP	216
Address) . . . . . . . . . . . . . . . . . . . . . .
Route Entry Configuration (Switch Default
Gateway) . . . . . . . . . . . . . . . . . . . . . .	218
Domain Name Server . . . . . . . . . . . . . . . .	220
Default Domain Name . . . . . . . . . . . . . . .	221
Host Name Mapping . . . . . . . . . . . . . . . .	222
Dynamic Host Name Mapping . . . . . . . . . . .	223
Configuring Basic Network Information (CLI). . . . . .	224
Enabling the DHCP Client on the OOB Port. . . . . 224
Enabling the DHCP Client on the Default VLAN . .	224
Managing DHCP Leases . . . . . . . . . . . . . .	225
Configuring Static Network Information on the
OOB Port . . . . . . . . . . . . . . . . . . . . . .	226
Configuring Static Network Information on the
Default VLAN . . . . . . . . . . . . . . . . . . . .	227
Configuring and Viewing Additional Network
Information . . . . . . . . . . . . . . . . . . . . .	228
Basic Network Information Configuration Examples. . 230
Configuring Network Information Using the
OOB Port . . . . . . . . . . . . . . . . . . . . . .	230
Configuring Network Information Using the
Serial Interface . . . . . . . . . . . . . . . . . . .	232

Contents 11

8Managing QSFP Ports . . . . . . . . . . . . . . 235

9Stacking . . . . . . . . . . . . . . . . . . . . . . . . . 237

Stacking Overview . . . . . . . . . . . . . . . . . . . .	237
Dell EMC Networking N1124-ON/N1148-ON,
N1500, N2000, N2100-ON, N3000, N3000E-ON,
N3100-ON, and N4000 Stacking Compatibility . . .	243
How is the Stack Master Selected? . . . . . . . .	243
Adding a Switch to the Stack . . . . . . . . . . . .	245
Removing a Switch from the Stack . . . . . . . . .	246
How is the Firmware Updated on the Stack?. . . . 246
What is Stacking Standby? . . . . . . . . . . . . .	247
What is Nonstop Forwarding? . . . . . . . . . . .	247
Switch Stack MAC Addressing and Stack
Design Considerations . . . . . . . . . . . . . . .	250
NSF Network Design Considerations. . . . . . . .	251
Why is Stacking Needed? . . . . . . . . . . . . .	251
Default Stacking Values . . . . . . . . . . . . . . . . .	252
Managing and Monitoring the Stack (Web). . . . . . .	253
Unit Configuration. . . . . . . . . . . . . . . . . .	253
Stack Summary . . . . . . . . . . . . . . . . . . .	254
Stack Firmware Synchronization . . . . . . . . . .	255
Supported Switches . . . . . . . . . . . . . . . .	256
Stack Port Summary . . . . . . . . . . . . . . . .	257
Stack Port Counters. . . . . . . . . . . . . . . . .	258
Stack Port Diagnostics . . . . . . . . . . . . . . .	258
NSF Summary . . . . . . . . . . . . . . . . . . . .	259
Checkpoint Statistics . . . . . . . . . . . . . . . .	260
Managing the Stack (CLI) . . . . . . . . . . . . . . . .	261
Configuring Stack Member, Stack Port, SFS

12 Contents

and NSF Settings . . . . . . . . . . . . . . . . . .	261
Viewing and Clearing Stacking and NSF
Information . . . . . . . . . . . . . . . . . . . . .	263
Connecting to the Management Console from
a Stack Member . . . . . . . . . . . . . . . . . .	264
Stacking and NSF Usage Scenarios. . . . . . . . . . .	264
Basic Failover. . . . . . . . . . . . . . . . . . . .	264
Preconfiguring a Stack Member . . . . . . . . . .	266
NSF in the Data Center . . . . . . . . . . . . . . .	268
NSF and VoIP . . . . . . . . . . . . . . . . . . . .	269
NSF and DHCP Snooping . . . . . . . . . . . . . .	270
NSF and the Storage Access Network . . . . . . .	271
NSF and Routed Access . . . . . . . . . . . . . .	273

10Authentication, Authorization, and

Accounting . . . . . . . . . . . . . . . . . . . . . . 275

AAAIntroduction . . . . . . . . . . . . . . . . . . . . 275 Methods . . . . . . . . . . . . . . . . . . . . . . 276 Method Lists . . . . . . . . . . . . . . . . . . . . 277 Access Lines . . . . . . . . . . . . . . . . . . . . 278 Enabling SSH Access. . . . . . . . . . . . . . . . 279 Access Lines (AAA) . . . . . . . . . . . . . . . . 279 Access Lines (Non-AAA) . . . . . . . . . . . . . . 280

Authentication . . . . . . . . . . . . . . . . . . . . . .	281
Authentication Types . . . . . . . . . . . . . . . .	281
Authentication Manager . . . . . . . . . . . . . .	282
Using RADIUS. . . . . . . . . . . . . . . . . . . .	288
Using TACACS+ Servers to Control Management
Access . . . . . . . . . . . . . . . . . . . . . . .	293
Dynamic ACL Overview. . . . . . . . . . . . . . .	295
Authentication Examples . . . . . . . . . . . . . .	302
Contents			13

Public Key SSH Authentication Example . . . . . .	310
Associating a User With an SSH Key. . . . . . . .	318
Authorization . . . . . . . . . . . . . . . . . . . . . . .	320
Exec Authorization Capabilities. . . . . . . . . . .	320
Authorization Examples . . . . . . . . . . . . . . .	322
RADIUS Change of Authorization . . . . . . . . . .	324
TACACS Authorization . . . . . . . . . . . . . . .	328
Accounting . . . . . . . . . . . . . . . . . . . . . . . .	332
RADIUS Accounting . . . . . . . . . . . . . . . .	332
IEEE 802.1X . . . . . . . . . . . . . . . . . . . . . . . .	334
What is IEEE 802.1X? . . . . . . . . . . . . . . . .	334
What are the 802.1X Port Authentication
Modes? . . . . . . . . . . . . . . . . . . . . . . .	335
What is MAC-Based 802.1X Authentication?. . . .	336
What is the Role of 802.1X in VLAN
Assignment? . . . . . . . . . . . . . . . . . . . .	339
What is Monitor Mode?. . . . . . . . . . . . . . .	341
How Does the Authentication Server Assign
DiffServ Policy or ACLs? . . . . . . . . . . . . . .	343
What is the Internal Authentication Server? . . . . 344
Default 802.1X Values . . . . . . . . . . . . . . . .	344
Configuring IEEE 802.1X (Web) . . . . . . . . . . .	345
Captive Portal . . . . . . . . . . . . . . . . . . . . . .	370
Captive Portal Overview . . . . . . . . . . . . . .	370
Default Captive Portal Behavior and Settings . . .	378
Configuring Captive Portal (Web). . . . . . . . . .	380
Configuring Captive Portal (CLI) . . . . . . . . . .	396
Captive Portal Configuration Example . . . . . . .	402
In Case Of Problems in Captive Portal
Deployment . . . . . . . . . . . . . . . . . . . . .	406

14 Contents

11Monitoring and Logging System

Information . . . . . . . . . . . . . . . . . . . . . . 407

System Monitoring Overview . . . . . . . . . . . . . .	407
What System Information Is Monitored?. . . . . .	407
Why Is System Information Needed? . . . . . . .	408
Where Are Log Messages Sent? . . . . . . . . . .	408
What Are the Severity Levels? . . . . . . . . . . .	409
What Are the System Startup and Operation
Logs? . . . . . . . . . . . . . . . . . . . . . . . .	409
What Is the Log Message Format? . . . . . . . . .	410
What Factors Should Be Considered When
Configuring Logging? . . . . . . . . . . . . . . . .	412
Default Log Settings . . . . . . . . . . . . . . . . . . .	413
Monitoring System Information and Configuring
Logging (Web) . . . . . . . . . . . . . . . . . . . . . .	414
Device Information . . . . . . . . . . . . . . . . .	414
System Health . . . . . . . . . . . . . . . . . . .	416
System Resources . . . . . . . . . . . . . . . . .	417
Unit Power Usage History . . . . . . . . . . . . .	418
Integrated Cable Test for Copper Cables. . . . . .	419
Optical Transceiver Diagnostics . . . . . . . . . .	420
Log Global Settings . . . . . . . . . . . . . . . . .	421
RAM Log . . . . . . . . . . . . . . . . . . . . . .	422
Log File . . . . . . . . . . . . . . . . . . . . . . .	424
SYSLOG Server . . . . . . . . . . . . . . . . . . .	424
Email Alert Global Configuration . . . . . . . . . .	427
Email Alert Mail Server Configuration . . . . . . .	427
Email Alert Subject Configuration . . . . . . . . .	429
Email Alert To Address Configuration . . . . . . .	430
Email Alert Statistics . . . . . . . . . . . . . . . .	430

Contents 15

Monitoring System Information and Configuring

Logging (CLI) . . . . . . . . . . . . . . . . . . . . . . .	432
Viewing System Information and Enabling the
Locator LED . . . . . . . . . . . . . . . . . . . . .	432
Running Cable Diagnostics . . . . . . . . . . . . .	432
Configuring Local Logging . . . . . . . . . . . . .	434
Configuring Remote Logging . . . . . . . . . . . .	435
Configuring Mail Server Settings . . . . . . . . . .	436
Configuring Email Alerts for Log Messages . . . .	437
Logging Configuration Examples . . . . . . . . . . . .	439
Configuring Local and Remote Logging . . . . . .	439
Configuring Email Alerting . . . . . . . . . . . . .	442

		12 Managing General System Settings . . .	445
		System Settings Overview . . . . . . . . . . . . . . . .	445
		Why Does System Information Need to Be
		Configured? . . . . . . . . . . . . . . . . . . . . .	447
		What Are SDM Templates?. . . . . . . . . . . . .	447
		Why is the System Time Needed? . . . . . . . . .	450
		How Does SNTP Work?. . . . . . . . . . . . . . .	450
		What Configuration Is Required for Plug-In
		Modules? . . . . . . . . . . . . . . . . . . . . . .	451
		Default General System Information . . . . . . . . . .	451
		Configuring General System Settings (Web) . . . . . .	452
		System Information . . . . . . . . . . . . . . . . .	452
		CLI Banner . . . . . . . . . . . . . . . . . . . . .	455
		SDM Template Preference . . . . . . . . . . . . .	456
		Clock . . . . . . . . . . . . . . . . . . . . . . . .	457
		SNTP Global Settings . . . . . . . . . . . . . . . .	458
		SNTP Authentication . . . . . . . . . . . . . . . .	459
		SNTP Server . . . . . . . . . . . . . . . . . . . .	461
16		Contents

Summer Time Configuration . . . . . . . . . . . .	464
Time Zone Configuration . . . . . . . . . . . . . .	465
Card Configuration . . . . . . . . . . . . . . . . .	466
Slot Summary . . . . . . . . . . . . . . . . . . . .	467
Supported Cards . . . . . . . . . . . . . . . . . .	468
Power Over Ethernet Global Configuration. . . . .	469
Power Over Ethernet Unit Configuration . . . . . .	470
Power Over Ethernet Interface Configuration . . . 471
Configuring System Settings (CLI). . . . . . . . . . . .	473
Configuring System Information . . . . . . . . . .	473
Configuring the Banner . . . . . . . . . . . . . . .	474
Managing the SDM Template . . . . . . . . . . .	475
Configuring SNTP Authentication and an SNTP
Server . . . . . . . . . . . . . . . . . . . . . . . .	475
Setting the System Time and Date Manually. . . . 477
Configuring the Expansion Slots (Dell EMC
Networking N3000/N3100-ON/N4000 Series
Only). . . . . . . . . . . . . . . . . . . . . . . . .	478
Viewing Slot Information (Dell EMC Networking
N4000 Series Only) . . . . . . . . . . . . . . . . .	479
Configuring PoE Settings (Dell EMC Networking
N1108P-ON/ N1124P-ON/ N1148P-ON,
N1524P/N1548P, N2024P/N2048P/N2128PX-ON,
N3024P/N3048P/N3048EP-ON/N3132PX-ON
Only). . . . . . . . . . . . . . . . . . . . . . . . .	479
General System Settings Configuration Examples . . . 481
Configuring System and Banner Information . . .	481
Configuring SNTP. . . . . . . . . . . . . . . . . .	484
Configuring the Time Manually . . . . . . . . . . .	486
13 SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . 487
SNMP Overview . . . . . . . . . . . . . . . . . . . . .	487
Contents			17

What Is SNMP? . . . . . . . . . . . . . . . . . . .	487
What Are SNMP Traps? . . . . . . . . . . . . . .	488
Why Is SNMP Needed?. . . . . . . . . . . . . . .	489
Default SNMP Values . . . . . . . . . . . . . . . . . .	489
Configuring SNMP (Web) . . . . . . . . . . . . . . . .	491
SNMP Global Parameters . . . . . . . . . . . . .	491
SNMP View Settings . . . . . . . . . . . . . . . .	492
Access Control Group . . . . . . . . . . . . . . .	494
SNMPv3 User Security Model (USM) . . . . . . .	496
Communities . . . . . . . . . . . . . . . . . . . .	499
Notification Filter . . . . . . . . . . . . . . . . . .	501
Notification Recipients . . . . . . . . . . . . . . .	502
Trap Flags . . . . . . . . . . . . . . . . . . . . . .	504
OSPFv2 Trap Flags . . . . . . . . . . . . . . . . .	505
OSPFv3 Trap Flags . . . . . . . . . . . . . . . . .	506
Trap Log . . . . . . . . . . . . . . . . . . . . . . .	507
Configuring SNMP (CLI) . . . . . . . . . . . . . . . . .	509
Configuring the SNMPv3 Engine ID. . . . . . . . .	509
Configuring SNMP Views, Groups, and Users . . . 510
Configuring Communities . . . . . . . . . . . . . .	513
Configuring SNMP Notifications (Traps and
Informs) . . . . . . . . . . . . . . . . . . . . . . .	515
SNMP Configuration Examples . . . . . . . . . . . . .	518
Configuring SNMPv1 and SNMPv2 . . . . . . . . .	518
Configuring SNMP Management Station
Access . . . . . . . . . . . . . . . . . . . . . . .	519
Configuring SNMPv3 . . . . . . . . . . . . . . . .	520

14 Images and File Management . . . . . . . . 525

Image and File Management Overview . . . . . . . . . 525

18 Contents

What Files Can Be Managed? . . . . . . . . . . .	525
Why Is File Management Needed?. . . . . . . . .	527
What Methods Are Supported for File
Management? . . . . . . . . . . . . . . . . . . .	530
What Factors Should Be Considered When
Managing Files? . . . . . . . . . . . . . . . . . .	531
How Is the Running Configuration Saved? . . . . . 534
Managing Images and Files (Web) . . . . . . . . . . .	535
File System . . . . . . . . . . . . . . . . . . . . .	535
Active Images. . . . . . . . . . . . . . . . . . . .	536
USB Flash Drive. . . . . . . . . . . . . . . . . . .	537
File Download. . . . . . . . . . . . . . . . . . . .	538
File Upload . . . . . . . . . . . . . . . . . . . . .	540
Copy Files . . . . . . . . . . . . . . . . . . . . . .	542
Managing Images and Files (CLI) . . . . . . . . . . . .	543
Downloading and Activating a New Image
(TFTP) . . . . . . . . . . . . . . . . . . . . . . . .	544
Managing Files in Internal Flash . . . . . . . . . .	545
Managing Files on a USB Flash Device . . . . . .	546
Uploading a Configuration File (SCP). . . . . . . .	547
Managing Configuration Scripts (SFTP) . . . . . .	548
File and Image Management Configuration
Examples . . . . . . . . . . . . . . . . . . . . . . . . .	549
Upgrading the Firmware . . . . . . . . . . . . . .	549
Managing Configuration Scripts . . . . . . . . . .	552
Managing Files by Using the USB Flash Drive . . . 554

15 DHCP and USB Auto-Configuration .	. . . 557
Auto Configuration Overview . . . . . . . . . .	. . . .	557
What Is USB Auto Configuration? . . . . .	. . . .	558
	Contents			19

What Files Does USB Auto Configuration Use? . . 558 How Does USB Auto Configuration Use the

Files on the USB Device? . . . . . . . . . . . . . .	559
What Is the Setup File Format? . . . . . . . . . . .	561
What Is the DHCP Auto Configuration
Process? . . . . . . . . . . . . . . . . . . . . . .	561
Monitoring and Completing the DHCP Auto
Configuration Process . . . . . . . . . . . . . . .	567
What Are the Dependencies for DHCP Auto
Configuration?. . . . . . . . . . . . . . . . . . . .	568
Default Auto Configuration Values . . . . . . . . . . .	570
Managing Auto Configuration (Web) . . . . . . . . . .	571
Auto-Install Configuration . . . . . . . . . . . . .	571
Managing Auto Configuration (CLI) . . . . . . . . . . .	572
Managing Auto Configuration . . . . . . . . . . .	572
Auto Configuration Example . . . . . . . . . . . . . . .	573
Enabling USB Auto Configuration and Auto
Image Download . . . . . . . . . . . . . . . . . .	573
Enabling DHCP Auto Configuration and Auto
Image Download . . . . . . . . . . . . . . . . . .	574
Easy Firmware Upgrade via USB . . . . . . . . . .	576

16 Monitoring Switch Traffic . . . . . . . . . . . 577

Traffic Monitoring Overview. . . . . . . . . . . . . . .	577
What is sFlow Technology?. . . . . . . . . . . . .	577
What is RMON? . . . . . . . . . . . . . . . . . . .	580
What is Port Mirroring? . . . . . . . . . . . . . . .	581
Port Mirroring Behaviors . . . . . . . . . . . . . .	583
RSPAN . . . . . . . . . . . . . . . . . . . . . . .	585

20 Contents

Remote Capture. . . . . . . . . . . . . . . . . . .	586
Why is Traffic Monitoring Needed? . . . . . . . .	587
Default Traffic Monitoring Values. . . . . . . . . . . .	587
Monitoring Switch Traffic (Web) . . . . . . . . . . . .	588
sFlow Agent Summary . . . . . . . . . . . . . . .	588
sFlow Receiver Configuration . . . . . . . . . . .	589
sFlow Sampler Configuration . . . . . . . . . . . .	590
sFlow Poll Configuration . . . . . . . . . . . . . .	591
Interface Statistics . . . . . . . . . . . . . . . . .	592
Etherlike Statistics . . . . . . . . . . . . . . . . .	593
GVRP Statistics . . . . . . . . . . . . . . . . . . .	594
EAP Statistics . . . . . . . . . . . . . . . . . . . .	595
Utilization Summary . . . . . . . . . . . . . . . .	596
Counter Summary. . . . . . . . . . . . . . . . . .	597
Switchport Statistics . . . . . . . . . . . . . . . .	598
RMON Statistics . . . . . . . . . . . . . . . . . .	599
RMON History Control Statistics . . . . . . . . . .	599
RMON History Table . . . . . . . . . . . . . . . .	602
RMON Event Control . . . . . . . . . . . . . . . .	603
RMON Event Log . . . . . . . . . . . . . . . . . .	605
RMON Alarms. . . . . . . . . . . . . . . . . . . .	606
Port Statistics . . . . . . . . . . . . . . . . . . . .	608
LAG Statistics . . . . . . . . . . . . . . . . . . . .	609
Port Mirroring. . . . . . . . . . . . . . . . . . . .	610
Monitoring Switch Traffic (CLI) . . . . . . . . . . . . .	612
Configuring sFlow. . . . . . . . . . . . . . . . . .	612
Configuring RMON . . . . . . . . . . . . . . . . .	614
Viewing Statistics. . . . . . . . . . . . . . . . . .	616
Configuring Port Mirroring . . . . . . . . . . . . .	617
Configuring RSPAN . . . . . . . . . . . . . . . . .	618
Traffic Monitoring Examples . . . . . . . . . . . . . .	622
Showing Interface Traffic . . . . . . . . . . . . .	622
Contents			21

Configuring sFlow . . . . . . . . . . . . . . . . . .	623
Configuring RMON . . . . . . . . . . . . . . . . .	625
Configuring Remote Capture . . . . . . . . . . . .	626
Configuring RSPAN . . . . . . . . . . . . . . . . .	631

17 iSCSI Optimization . . . . . . . . . . . . . . . . . 635

iSCSI Optimization Overview . . . . . . . . . . . . . .	635
What Does iSCSI Optimization Do? . . . . . . . . .	635
What Occurs When iSCSI Optimization Is
Enabled or Disabled? . . . . . . . . . . . . . . . .	636
How Does the Switch Detect iSCSI Traffic
Flows? . . . . . . . . . . . . . . . . . . . . . . . .	636
How Is Quality of Service Applied to iSCSI Traffic
Flows? . . . . . . . . . . . . . . . . . . . . . . . .	636
How Does iSCSI Optimization Use ACLs? . . . . . 637
What Information Does the Switch Track in iSCSI
Traffic Flows? . . . . . . . . . . . . . . . . . . . .	637
How Does iSCSI Optimization Interact With Dell
EqualLogic and Compellant Arrays? . . . . . . . .	639
How Does iSCSI Optimization Interact with Other
SAN Arrays? . . . . . . . . . . . . . . . . . . . .	639
How Does iSCSI Optimization Interact with
DCBx? . . . . . . . . . . . . . . . . . . . . . . . .	640
iSCSI CoS and Priority Flow Control/Enhanced
Transmission Selection Interactions . . . . . . . .	641
Default iSCSI Optimization Values . . . . . . . . . . .	642
Configuring iSCSI Optimization (Web). . . . . . . . . .	643
iSCSI Global Configuration . . . . . . . . . . . . .	643
Configuring iSCSI Optimization (CLI) . . . . . . . . . .	644
iSCSI Optimization Configuration Examples . . . . . .	645

22 Contents

Configuring iSCSI Optimization Between Servers

and a Disk Array . . . . . . . . . . . . . . . . . . 645

18 Port Characteristics . . . . . . . . . . . . . . . 649

Port Overview . . . . . . . . . . . . . . . . . . . . . .	649
What Physical Port Characteristics Can Be
Configured? . . . . . . . . . . . . . . . . . . . . .	649
Auto-Negotiation . . . . . . . . . . . . . . . . . .	651
Maximum Transmission Unit . . . . . . . . . . . .	651
What is Link Dependency? . . . . . . . . . . . . .	652
What Interface Types are Supported? . . . . . . .	654
What is Interface Configuration Mode? . . . . . .	654
What Are the Green Ethernet Features? . . . . . .	656
Switchport Modes . . . . . . . . . . . . . . . . .	657
Default Port Values . . . . . . . . . . . . . . . . . . .	658
Configuring Port Characteristics (Web). . . . . . . . .	660
Port Configuration . . . . . . . . . . . . . . . . .	660
Link Dependency Configuration . . . . . . . . . .	663
Link Dependency Summary . . . . . . . . . . . .	665
Port Green Ethernet Configuration . . . . . . . . .	666
Port Green Ethernet Statistics . . . . . . . . . . .	667
Port Green Ethernet LPI History . . . . . . . . . .	669
Configuring Port Characteristics (CLI) . . . . . . . . .	670
Configuring Port Settings . . . . . . . . . . . . . .	670
Configuring Link Dependencies . . . . . . . . . .	672
Configuring Green Features . . . . . . . . . . . .	673
Port Configuration Examples . . . . . . . . . . . . . .	674
Configuring Port Settings . . . . . . . . . . . . . .	674
Configuring a Link Dependency Groups . . . . . .	675
Configuring a Port in Access Mode . . . . . . . .	675
Contents			23

	Configuring a Port in Trunk Mode . . . . . . . . .	676
	Configuring a Port in General Mode . . . . . . . .	679
19	Port and System Security . . . . . . . . . . .	681
	Port Security . . . . . . . . . . . . . . . . . . . . . . .	681
	Denial of Service. . . . . . . . . . . . . . . . . . . . .	688
20	Access Control Lists . . . . . . . . . . . . . . .	689
	ACL Overview . . . . . . . . . . . . . . . . . . . . . .	689
	ACL Counters . . . . . . . . . . . . . . . . . . . .	691
	What Are MAC ACLs? . . . . . . . . . . . . . . .	691
	What Are IP ACLs? . . . . . . . . . . . . . . . . .	692
	ACL Actions . . . . . . . . . . . . . . . . . . . . .	692
	What Is the ACL Redirect Function? . . . . . . . .	693
	What Is the ACL Mirror Function? . . . . . . . . .	694
	What Is ACL Logging . . . . . . . . . . . . . . . .	694
	What Are Time-Based ACLs?. . . . . . . . . . . .	694
	ACL Limitations . . . . . . . . . . . . . . . . . . .	695
	ACL Configuration Details . . . . . . . . . . . . . . . .	701
	How Are ACLs Configured? . . . . . . . . . . . . .	701
	Editing Access Lists. . . . . . . . . . . . . . . . .	701
	Preventing False ACL Matches . . . . . . . . . . .	701
	Using IP and MAC Address Masks . . . . . . . . .	703
	Policy-Based Routing . . . . . . . . . . . . . . . . . .	704
	Packet Classification . . . . . . . . . . . . . . . .	704
	Route-Map Processing . . . . . . . . . . . . . . .	705
	Route-Map Actions . . . . . . . . . . . . . . . . .	706
	ACLs and Policy Interaction . . . . . . . . . . . .	708
	Limitations. . . . . . . . . . . . . . . . . . . . . .	709

24 Contents

Configuring ACLs (Web) . . . . . . . . . . . . . . . . .	712
IP ACL Configuration . . . . . . . . . . . . . . . .	712
IP ACL Rule Configuration . . . . . . . . . . . . .	715
MAC ACL Configuration . . . . . . . . . . . . . .	717
MAC ACL Rule Configuration . . . . . . . . . . . .	719
IPv6 ACL Configuration . . . . . . . . . . . . . . .	720
IPv6 ACL Rule Configuration . . . . . . . . . . . .	721
ACL Binding Configuration . . . . . . . . . . . . .	723
Time Range Configuration . . . . . . . . . . . . .	724

Configuring ACLs (CLI) . . . . . . . . . . . . . . . . . .	726
Configuring an IPv4 ACL . . . . . . . . . . . . . .	726
Configuring a MAC ACL. . . . . . . . . . . . . . .	732
Configuring an IPv6 ACL . . . . . . . . . . . . . .	736
Configuring a Time Range . . . . . . . . . . . . .	739

ACL Configuration Examples . . . . . . . . . . . . . .	741
Basic Rules . . . . . . . . . . . . . . . . . . . . .	741
Internal System ACLs . . . . . . . . . . . . . . . .	742
Complete ACL Example . . . . . . . . . . . . . . .	743
Advanced Examples . . . . . . . . . . . . . . . .	747
Policy-Based Routing Examples . . . . . . . . . .	759

21 VLANs . . . . . . . . . . . . . . . . . . . . . . . . . .	763
VLAN Overview . . . . . . . . . . . . . . . . . . . . .	763
VLAN Tagging. . . . . . . . . . . . . . . . . . . .	766
GVRP . . . . . . . . . . . . . . . . . . . . . . . .	767
Double-VLAN Tagging . . . . . . . . . . . . . . .	768
Voice VLAN . . . . . . . . . . . . . . . . . . . . .	769
Private VLANs . . . . . . . . . . . . . . . . . . .	775
Additional VLAN Features . . . . . . . . . . . . .	780
Default VLAN Behavior . . . . . . . . . . . . . . . . .	781

Contents 25

Configuring VLANs (Web) . . . . . . . . . . . . . . . .	783
VLAN Membership . . . . . . . . . . . . . . . . .	783
VLAN Port Settings . . . . . . . . . . . . . . . . .	788
VLAN LAG Settings . . . . . . . . . . . . . . . . .	789
Bind MAC to VLAN . . . . . . . . . . . . . . . . .	791
Bind IP Subnet to VLAN. . . . . . . . . . . . . . .	791
GVRP Parameters . . . . . . . . . . . . . . . . . .	793
Protocol Group . . . . . . . . . . . . . . . . . . .	795
Adding a Protocol Group . . . . . . . . . . . . . .	796
Double VLAN Global Configuration . . . . . . . . .	798
Double VLAN Interface Configuration . . . . . . .	799
Voice VLAN . . . . . . . . . . . . . . . . . . . . .	801

Configuring VLANs (CLI) . . . . . . . . . . . . . . . . .	802
Creating a VLAN . . . . . . . . . . . . . . . . . .	802
Configuring VLAN Settings for a LAG. . . . . . . .	803
Configuring Double VLAN Tagging . . . . . . . . .	804
Configuring MAC-Based VLANs . . . . . . . . . .	807
Configuring IP-Based VLANs . . . . . . . . . . . .	809
Configuring a Protocol-Based VLAN . . . . . . . .	811
Configuring GVRP . . . . . . . . . . . . . . . . . .	814
Configuring Voice VLANs . . . . . . . . . . . . . .	816
Configuring a Voice VLAN (Extended
Example) . . . . . . . . . . . . . . . . . . . . . .	818
Enterprise Voice VLAN Configuration With
QoS . . . . . . . . . . . . . . . . . . . . . . . . .	819
MLAG with RPVST and Voice VLAN . . . . . . . .	822
Assigning an 802.1p Priority to VLAN Traffic . . . . 829
Configuring a Private VLAN. . . . . . . . . . . . .	830
Configuring Inter-Switch Private VLANs . . . . . .	832

VLAN Configuration Examples. . . . . . . . . . . . . .	833
Configuring VLANs Using the Dell EMC
OpenManage Switch Administrator . . . . . . . .	833
Configuring VLANs Using the CLI . . . . . . . . . .	841

26 Contents

22 Spanning Tree Protocol . . . . . . . . . .	. . . 845
STP Overview . . . . . . . . . . . . . . . . . .	. . . .	845
What Are Classic STP, Multiple STP, and
Rapid STP? . . . . . . . . . . . . . . . . .	. . . .	845
How Does STP Work? . . . . . . . . . . .	. . . .	846
How Does MSTP Operate in the Network?	. . . .	847
MSTP with Multiple Forwarding Paths . . .	. . . .	851
MSTP and VLAN IDs . . . . . . . . . . . .	. . . .	852
What are the Optional STP Features? . . .	. . . .	852
RSTP-PV . . . . . . . . . . . . . . . . . . . . .	. . . .	854
DirectLink Rapid Convergence . . . . . . .	. . . .	856
IndirectLink Rapid Convergence Feature .	. . . .	858
Interoperability Between STP-PV and RSTP-PV
Modes. . . . . . . . . . . . . . . . . . . .	. . . .	860
Interoperability With IEEE Spanning Tree
Protocols . . . . . . . . . . . . . . . . . .	. . . .	860
Configuration Examples . . . . . . . . . .	. . . .	865
Default STP Values . . . . . . . . . . . . . . .	. . . .	866
Configuring Spanning Tree (Web). . . . . . . .	. . . .	867
STP Global Settings. . . . . . . . . . . . .	. . . .	867
STP Port Settings . . . . . . . . . . . . . .	. . . .	869
STP LAG Settings . . . . . . . . . . . . . .	. . . .	871
Rapid Spanning Tree . . . . . . . . . . . .	. . . .	872
MSTP Settings . . . . . . . . . . . . . . .	. . . .	874
MSTP Interface Settings . . . . . . . . . .	. . . .	876
PVST/RPVST Global Configuration . . . . .	. . . .	877
PVST/RPVST VLAN Configuration . . . . .	. . . .	878
PVST/RPVST Interface Configuration . . .	. . . .	880
PVST/RPVST Statistics . . . . . . . . . . .	. . . .	881
Configuring Spanning Tree (CLI) . . . . . . . .	. . . .	882
Configuring Global STP Bridge Settings . .	. . . .	882
	Contents			27

Configuring Optional STP Features . . . . . . . . .	883
Configuring STP Interface Settings. . . . . . . . .	884
Configuring MSTP Switch Settings . . . . . . . . .	885
Configuring MSTP Interface Settings . . . . . . .	886
STP Configuration Examples. . . . . . . . . . . . . . .	887
STP Configuration Example . . . . . . . . . . . . .	887
MSTP Configuration Example. . . . . . . . . . . .	889
RSTP-PV Access Switch Configuration
Example . . . . . . . . . . . . . . . . . . . . . . .	892

23 Discovering Network Devices . . . . . . . . 897

Device Discovery Overview . . . . . . . . . . . . . . .	897
What Is ISDP?. . . . . . . . . . . . . . . . . . . .	897
What is LLDP?. . . . . . . . . . . . . . . . . . . .	897
What is LLDP-MED? . . . . . . . . . . . . . . . .	898
Why are Device Discovery Protocols
Needed?. . . . . . . . . . . . . . . . . . . . . . .	898
Default IDSP and LLDP Values. . . . . . . . . . . . . .	899
Configuring ISDP and LLDP (Web). . . . . . . . . . . .	901
ISDP Global Configuration . . . . . . . . . . . . .	901
ISDP Neighbor Table . . . . . . . . . . . . . . . .	902
ISDP Interface Configuration . . . . . . . . . . . .	903
ISDP Statistics . . . . . . . . . . . . . . . . . . .	904
LLDP Configuration . . . . . . . . . . . . . . . . .	905
LLDP Statistics . . . . . . . . . . . . . . . . . . .	907
LLDP Connections. . . . . . . . . . . . . . . . . .	908
LLDP-MED Global Configuration . . . . . . . . . .	909
LLDP-MED Interface Configuration. . . . . . . . .	910
LLDP-MED Local Device Information. . . . . . . .	911
LLDP-MED Remote Device Information . . . . . .	911

28 Contents

Configuring ISDP and LLDP (CLI) . . . . . . . . . . . .	912
Configuring Global ISDP Settings . . . . . . . . .	912
Enabling ISDP on a Port . . . . . . . . . . . . . .	913
Viewing and Clearing ISDP Information . . . . . .	913
Configuring Global LLDP Settings . . . . . . . . .	914
Configuring Port-based LLDP Settings . . . . . . .	914
Viewing and Clearing LLDP Information . . . . . .	915
Configuring LLDP-MED Settings . . . . . . . . . .	917
Viewing LLDP-MED Information . . . . . . . . . .	918
Device Discovery Configuration Examples . . . . . . .	918
Configuring ISDP . . . . . . . . . . . . . . . . . .	918
Configuring LLDP . . . . . . . . . . . . . . . . . .	919

24 Port-Based Traffic Control . . . . . . .	. . . 921
Port-Based Traffic Control Overview . . . . . .	. . . .	921
What is Flow Control? . . . . . . . . . . .	. . . .	922
What is Storm Control? . . . . . . . . . . .	. . . .	922
What are Protected Ports? . . . . . . . . .	. . . .	923
What is Error Recovery? . . . . . . . . . .	. . . .	923
What is Link Local Protocol Filtering? . . .	. . . .	924
What is Loop Protection?. . . . . . . . . .	. . . .	925
Default Port-Based Traffic Control Values . . .	. . . .	926
Configuring Port-Based Traffic Control (Web) .	. . . .	927
Flow Control (Global Port Parameters) . . .	. . . .	927
Storm Control . . . . . . . . . . . . . . . .	. . . .	928
Protected Port Configuration . . . . . . . .	. . . .	930
LLPF Configuration . . . . . . . . . . . . .	. . . .	932
Configuring Port-Based Traffic Control (CLI) . .	. . . .	933
Configuring Flow Control and Storm Control . . . . 933
Configuring Protected Ports . . . . . . . .	. . . .	934
	Contents			29

Configuring LLPF . . . . . . . . . . . . . . . . . . 935

Port-Based Traffic Control Configuration Example . . . 936

		25 Layer-2 Multicast Features . . . . . . .	. . .	939
		L2 Multicast Overview . . . . . . . . . . . . . .	. . . .	939
		Multicast Flooding and Forwarding. . . . .	. . . .	939
		What Are the Multicast Bridging Features?	. . . .	940
		What Is L2 Multicast Traffic? . . . . . . . .	. . . .	941
		What Is IGMP Snooping? . . . . . . . . . .	. . . .	941
		What Is MLD Snooping? . . . . . . . . . .	. . . .	943
		What Is Multicast VLAN Registration? . . .	. . . .	945
		When Are Layer-3 Multicast Features
		Required? . . . . . . . . . . . . . . . . . .	. . . .	946
		What Are GARP and GMRP? . . . . . . . .	. . . .	946
		Snooping Switch Restrictions . . . . . . . . . .	. . . .	948
		MAC Address-Based Multicast Group . . .	. . . .	948
		Topologies Where the Multicast Source Is
		Not Directly Connected to the Querier . . .	. . . .	948
		Using Static Multicast MAC Configuration .	. . . .	948
		IGMP Snooping and GMRP . . . . . . . . .	. . . .	948
		Default L2 Multicast Values . . . . . . . . . . .	. . . .	949
		Configuring L2 Multicast Features (Web) . . . .	. . . .	951
		Multicast Global Parameters . . . . . . . .	. . . .	951
		Bridge Multicast Group . . . . . . . . . . .	. . . .	952
		MFDB Summary. . . . . . . . . . . . . . .	. . . .	955
		MRouter Status . . . . . . . . . . . . . . .	. . . .	956
		General IGMP Snooping . . . . . . . . . .	. . . .	957
		Global Querier Configuration . . . . . . . .	. . . .	960
		VLAN Querier . . . . . . . . . . . . . . . .	. . . .	961
		VLAN Querier Status . . . . . . . . . . . .	. . . .	963
30		Contents