Cisco SF220-24, SF220-24P, SF220-48, SF220-48P, SG220-26 Service Manual

ADMINISTRATION

GUIDE

Cisco 220 Series Smart Plus Switches

Administration Guide Release 1.0.0.x

Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)

© 2014 Cisco Systems, Inc. All rights reserved.

OL-30454-01

Getting Started 7

Getting Started with the Web-based Interface 7 Before you Begin 8

Logging In To the Web-based Interface 8 HTTP/HTTPS 9

Changing the Administrative Password 10 Logging Out 11

Quick Start Switch Configuration 12 Interface Naming Conventions 13 Window Navigation 14

Application Header 14

Management Buttons 15

Status and Statistics 18 Viewing Ethernet Interface 18 Viewing Etherlike Statistics 20 Viewing TCAM Utilization 21

Viewing Fan Status and Temperature 22 Managing RMON 24

Viewing RMON Statistics 25

Configuring and Viewing RMON Histories 27 Configuring RMON History Control Samples 27 Viewing RMON History Statistics 28 Configuring and Viewing RMON Events 29 Configuring RMON Events 30

Viewing RMON Event Logs 31

Configuring RMON Alarms 31

Administration: System Logs 34 Configuring System Log Settings 34 Configuring Remote Logging Settings 36 Viewing Memory Logs 36

Viewing RAM Memory Logs 37

Viewing Flash Memory Logs 38 Administration: File Management 39 Files and File Types 39

File Actions 41

Upgrade/Backup Firmware/Language 42 Upgrading/Saving the Firmware Image 43 Upgrading the Language File 45

Active Image 46

Download/Backup Configuration or Logs 46 Uploading Configuration File 47

Saving Configuration File or Logs 48 Configuration File Properties 49 Copy/Save Configuration Files 50 DHCP Auto Configuration 51

DHCP Server Options 52

Auto Configuration Process 52

Configuring DHCP Auto Configuration Parameters 52

Administration: General Information 55

Device Models 56

Viewing System Summary 58

Configuring System Settings 60

Configuring Console Settings 61

Rebooting the Switch 61

Defining Idle Session Timeout 62

Ping a Host 63

Using Traceroute 63

Administration: Time Settings 65

System Time Options 66

Configuring System Time 66

Configuring SNTP Server 68

Administration: Diagnostics 69

Testing Copper Ports 69

Viewing Optical Module Status 70

Configuring Port and VLAN Mirroring 71

Viewing CPU Utilization 74

Administration: Discovery 75

Configuring Bonjour 75

LLDP and CDP 76

Configuring LLDP 77

Configuring LLDP Properties 79

Configuring LLDP Port Settings 80

Configuring LLDP MED Network Policy 81

Configuring LLDP MED Port Settings 83

Viewing LLDP Port Status 84

Viewing LLDP Local Information 85

Viewing LLDP Neighbors Information 88

Viewing LLDP Statistics 89

Viewing LLDP Overloading 89

Configuring CDP 92

Configuring CDP Properties 92

Configuring CDP Port Settings 94

Viewing CDP Local Information 95

Displaying CDP Neighbor Information 97

Viewing CDP Statistics 98

Port Management 100

Port Management Workflow 100

Configuring Basic Port Settings 101

Configuring Error Recovery Settings 104

Configuring Link Aggregation 105

Load Balancing 106

LAG Management 106

Static and Dynamic LAG Workflow 107 Configuring LAG Management 108 Configuring LAG Settings 109 Configuring LACP 110

LACP Priotity and Rules 110 LACP With No Link Partner 111 Configuring LACP Parameters 112

Configuring Energy Efficient Ethernet 113 Power-over-Ethernet 114

PoE Considerations 114 PoE on the Switch 116 PoE Features 116

PoE Operation 117

PoE Configuration Considerations 117 Configuring PoE Properties 118 Configuring PoE Port Settings 120 Managing VLANs 122

VLANs 122

VLAN Description 122 VLAN Roles 123

Workflow to Configure VLANs 124 Configuring Default VLAN 125 Creating VLANs 126

Configuring VLAN Interface Settings 127 Configuring Port to VLAN 128

Viewing VLAN Membership 129 Configuring GVRP 131 Configuring Voice VLAN 133 Dynamic Voice VLAN Modes 133 Voice VLAN Constraints 134 Voice VLAN Options 134

Configuring Voice VLAN Properties 135 Configuring Telephony OUI 135

Adding Interfaces to Voice VLAN on Basis of OUIs 137 Spanning Tree Protocol 139

STP Modes 139

Configuring STP Status and Global Settings 140 Configuring STP Interface Settings 142 Configuring RSTP Interface Settings 143 Configuring Multiple Spanning Tree 146 Configuring MSTP Properties 146

Mapping VLANs to an MST Instance 147 Configuring MSTP Instance Settings 148 Configuring MSTP Interface Settings 149 MAC Address Tables 152

Types of MAC Addresses 152

Configuring Static MAC Addresses 153 Configuring Static MAC Address Filter 154 Configuring Dynamic MAC Address Aging Time 154 Querying Dynamic Addresses 155

Configuring Reserved MAC Addresses 156 Multicast Forwarding 157

Multicast Forwarding 157

Typical Multicast Setup 158 Multicast Address Properties 160 Configuring Multicast Properties 160

Configuring IP Multicast Group Addresses 161 Configuring IGMP Snooping 162

Configuring MLD Snooping 165

Querying IGMP/MLD IP Multicast Groups 167 Configuring Multicast Router Ports 167 Configuring Forward All Multicast 168 Configuring Maximum IGMP and MLD Groups 169 Configuring Multicast Filtering 170

Configuring Multicast Filter Profiles 170 Configuring Interface Filter Settings 171 IP Configuration 172

IP Addressing 172

IPv4 Management and Interface 174

IPv6 Management and Interface 175

Configuring Domain Name System 176

Configuring General DNS Settings 177 Viewing Static and Dynamic DNS Servers 178 Configuring Host Mapping 178

Configuring Security 180 Configuring Users 181 Configuring TACACS+ Servers 182 Configuring RADIUS Servers 184

Configuring Management Access Methods 186 Access Profile Rules, Filters, and Elements 186 Active Access Profile 187

Configuring Access Profiles 188 Configuring Profile Rules 190

Configuring Password Complexity Rules 192 Configuring Management Access Authentication 193 Configuring TCP/UDP Services 195

Configuring Storm Control 197

Configuring Port Security 198 Configuring 802.1X 200 Guest VLAN 201

Workflow to configure 802.1X 201 Configuring 802.1X Properties 202

Configuring 802.1X Port Authentication 202 Viewing Authenticated Hosts 204 Configuring DoS Protection 205

Secure Core Technology (SCT) 205 Default Configuration 205

Configuring DoS Security Suite Settings 206 Configuring DoS Interface Settings 207 Configuring SYN Protection 208 Configuring DHCP Snooping 209 Configuring DHCP Snooping Properties 210 Configuring DHCP Snooping on VLANs 211

Configuring DHCP Snooping Trusted Interfaces 211 Querying DHCP Snooping Binding Database 212 Viewing Option 82 Statistics 213

Configuring Option 82 Interface Settings 214

Configuring Option 82 Port CID Settings 214 Configuring IP Source Guard 215

Configuring IP Source Guard Interface Settings 215 Quering IP Source Binding Database 216 Configuring Dynamic ARP Inspection 217

ARP Cache Poisoning 218

How ARP Prevents Cache Poisoning 219

Interaction Between ARP Inspection and DHCP Snooping 220 Workflow to configure ARP Inspection 220

Configuring ARP Inspection Properties 221 Configuring ARP Inspection Trusted Interfaces 221 Viewing ARP Inspection Statistics 222 Configuring ARP Inspection VLAN Settings 223 Access Control 224

Access Control Lists 224 Creating ACLs Workflow 226 Modifying ACLs Workflow 227 Configuring MAC-based ACLs 227 Configuring MAC-based ACEs 228 Configuring IPv4-based ACLs 229 Configuring IPv4-Based ACEs 230 Configuring IPv6-based ACLs 234 Configuring IPv6-based ACEs 234 Configuring ACL Binding 237 Quality of Service 239

QoS Features and Components 239 Workflow to Configure QoS Settings 241 Configuring QoS Properties 242 Configuring QoS Queues 243

Mapping CoS/802.1p to a Queue 244 Mapping IP Precedence to Queue 246

Mapping DSCP to Queue 246 Mapping Queues to CoS/802.1p 247

Mapping Queues to IP Precedences 247 Mapping Queue to DSCP 248 Configuring Interface Remark 248 Configuring Bandwidth 249

Configuring Egress Shaping per Queue 250 Configuring VLAN Rate Limit 251 Configuring VLAN Port Rate Limit 251 Configuring TCP Congestion Avoidance 252 Configuring QoS Basic Mode 253 Configuring Basic QoS Global Settings 254 Configuring Interface QoS Settings 254 Configuring QoS Advanced Mode 255

Configuring Advanced QoS Global Settings 257 Configuring Class Mapping 258

QoS Policers 259

Configuring Aggregate Policers 260 Configuring QoS Policies 261 Configuring Policy Class Maps 262 Configuring Policy Binding 263 SNMP 264

SNMP Versions and Workflow 264 SNMP v1 and v2 265

SNMP v3 265 SNMP Workflow 266 Supported MIBs 267

Model Object IDs 268 Configuring SNMP Engine ID 269 Configuring SNMP Views 270 Configuring SNMP Groups 271 Managing SNMP Users 273

Configuring SNMP Communities 274 Configuring SNMP Notification Recipients 275

Configuring SNMPv1,2 Notification Recipients 276 Configuring SNMPv3 Notification Recipients 277 Using the Console Interface 279

Connecting By Using a Terminal Emulation Application 279 Communicating by Using a Console Cable Connection 281 Communicating By Using a TCP/IP Connection 283 Connecting By Using Telnet 284

Where to Go From Here 285

1

Getting Started

This chapter provides an introduction to the web-based interface of the Cisco 220 switch and includes the following topics:

•Getting Started with the Web-based Interface

•Quick Start Switch Configuration

•Interface Naming Conventions

•Window Navigation

Getting Started with the Web-based Interface

The Cisco 220 switch can be accessed and managed by two methods; over your IP network by using the web-based interface, or by using the command-line interface through the console interface. Using the console interface requires advanced user skills. See the Cisco 220 Series Smart Plus Switches Command Line Interface Reference Guide for more information about using the console interface.

This section includes the following topics:

•Before you Begin

•Logging In To the Web-based Interface

•HTTP/HTTPS

•Changing the Administrative Password

•Logging Out

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Getting Started with the Web-based Interface

Before you Begin

Before you begin to use the web-based interface, make sure that you have a computer with Internet Explorer 8.0 (or higher), Firefox 20.0 (or higher), Chrome 23.0 (or higher), or Safari 5.7 (or higher).

These are the default settings used when configuring your switch for the first time:

Parameter	Default Value
Username	cisco
Password	cisco
Switch IP	192.168.1.254

Logging In To the Web-based Interface

To access the switch with the web-based interface, you must know the IP address that the switch is using. The default configuration of the switch is to use its factory default IP address of 192.168.1.254 until it has obtained an IP address from a DHCP server.

NOTE If you are managing the switch through a network connection and the switch IP address is changed, either by a DHCP server or manually, your access to the switch will be lost. You must enter the new IP address that the switch is using into your browser to use the web-based interface. If you are managing the switch through a console port connection, the link is retained.

To configure the switch using the web-based interface:

STEP 1 Power on the computer and your switch.

STEP 2 Connect the computer to the switch.

You can connect to the same IP subnet as the switch by connecting them directly with an Ethernet cable, or by connecting to the same LAN where the switch is located through other switches. You can also connect your computer to the switch from another IP subnet through one or more IP routers.

STEP 3 Locate the IP address of the switch.

a.The switch can be accessed and managed by Cisco network tools and services including the Cisco FindIT Network Discovery Utility that enables you to automatically discover all supported Cisco devices in the same local network segment as your computer. You can get a snapshot view of each

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Getting Started with the Web-based Interface

device or launch the product configuration utility to view and configure the settings. For more information about FindIT, see www.cisco.com/go/findit.

b.Locate the IP address assigned by your DHCP server by accessing your router or DHCP server; see your DHCP server instructions for information. Make sure that your DHCP server is running and can be reached.

STEP 4 Set up the IP configuration on your computer.

•If the switch is using the default static IP address of 192.168.1.254, you must choose an IP address in the range of 192.168.1.2 to 192.168.1.253 that is not already in use.

•If the IP addresses will be assigned by DHCP, make sure that your DHCP server is running and can be reached from the switch and the computer. You may need to disconnect and reconnect the devices for them to discover their new IP addresses from the DHCP server.

NOTE Details on how to change the IP address on your computer depend upon the type of architecture and operating system that you are using. Use your computers local Help and Support functionality and search for “IP Addressing.”

STEP 5 Open a web browser window. If you are prompted to install an Active-X plug-in when connecting to the switch, follow the prompts to accept the plug-in.

STEP 6 Enter the IP address of the switch that you are configuring in the address bar on the browser, and then press Enter. For example, http://192.168.1.254.

STEP 7 When the login page appears, choose the language that you prefer to use in the web-based interface and enter the username and password.

The default username is cisco and the default password is cisco. Both username and password are case sensitive.

STEP 8 Click Log In.

The first time that you log in with the default username and password, you are required to enter a new password. The Change Password page opens.

HTTP/HTTPS

You can either open an HTTP session (not secured) by clicking Log In, or you can open an HTTPS (secured) session by clicking Secure Browsing (HTTPS). You are asked to approve the logon with a default RSA key, and an HTTPS session is opened.

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Getting Started with the Web-based Interface

NOTE There is no need to input the username or password prior to clicking Secure Browsing (HTTPS).

Changing the Administrative Password

For security purposes you are required to change the administrative password at your first login or when the current administrative password expires.

Password complexity is enabled by default. The minimum password complexity requirements are shown on the page. The new password must comply with the default complexity rules or it can be disabled temporarily by selecting Disable Password Strength Enforcement. See the Configuring Password Complexity Rules section for more details about password complexity.

To change the password:

STEP 1 Enter the following fields to set a new administrative password:

•Old Password—Enter the current password (default is cisco).

•Password—Enter a new password.

•Confirm Password—Enter the new password again for confirmation.

•Password Strength Meter—Displays the strength of the new password.

•Disable Password Strength Enforcement—The password strength enforcement enabled by default requires the password to conform to the following default settings:

-Is different from the current username.

-Has a minimum length of eight characters.

-Contains characters from at least three character classes (uppercase letters, lowercase letters, numbers, and special characters available on a standard keyboard).

NOTE If you do not want to change the password, check Disable Password Strength Enforcement and click Apply. You are not required to set a new password and can be directed to the Getting Started page.

STEP 2 Click Apply.

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The Getting Started page page opens. You are now ready to configure the switch.

STEP 3 Check Do not show this page on startup to prevent the Getting Started page from being displayed each time that you logon to the switch. If you select this option, the System Summary page is opened instead of the Getting Started page.

Logging Out

By default, the application logs out after ten minutes of inactivity. You can change this default value as described in the Defining Idle Session Timeout section.

!

CAUTION Unless the Running Configuration is copied to the Startup Configuration, all changes made since the last time the file was saved are lost if the switch is rebooted. Save the Running Configuration to the Startup Configuration before logging off to preserve any changes that you made during this session.

A red X icon displayed to the left of the Save application link indicates that Running Configuration changes have been made have not yet been saved to the Startup Configuration file. The flashing red X can be displayed by clicking the Disable Save Icon Blinking button on the Copy/Save Configuration page.

When the switch auto-discovers a device, such as an IP phone, it configures the port appropriately for the device. These configuration commands are written to the Running Configuration file. This causes the Save icon to begin blinking when the user logs on even though the user did not make any configuration changes.

When you click Save, the Copy/Save Configuration page is displayed. Save the Running Configuration file by copying it to the Startup Configuration file. After this save, the red X icon and the Save application link are no longer displayed.

To logout, click Logout at the top right corner of any page. The system logs out of the switch.

When a timeout occurs or you intentionally log out of the switch, a message is displayed and the login page opens, with a message indicating the logged-out state. After you log in, the application returns to the initial page.

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Quick Start Switch Configuration

The initial page displayed depends on the “Do not show this page on startup” option on the Getting Started page. If you did not select this option, the initial page is the Getting Started page. If you did select this option, the initial page is the System Summary page.

Quick Start Switch Configuration

To simplify switch configuration through quick navigation, the Getting Started page provides links to the most commonly used pages.

Category	Link Name (on the Page)	Linked Page
Initial	Change Management	Security > TCP/UDP Services
Setup	Applications and Services	page
	Change Device IP Address	Administration > Management
		Interface > IPv4 Interface page
	Create VLAN	VLAN Management > Create
		VLAN page
	Configure Port Settings	Port Management > Port Setting
		page
Device	System Summary	Status and Statistics > System
Status		Summary page
	Port Statistics	Status and Statistics > Interface
		page
	RMON Statistics	Status and Statistics > RMON >
		Statistics page
	View Log	Status and Statistics > View Log >
		RAM Memory page

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Interface Naming Conventions

Category	Link Name (on the Page)	Linked Page
Quick	Change Device Password	Administration > User Accounts
Access		page
	Upgrade Device Software	Administration > File Management
		> Upgrade/Backup Firmware/
		Language page
	Backup Device	Administration > File Management
	Configuration	> Download/Backup
		Configuration/Log page
	Create MAC-Based ACL	Access Control > MAC-Based ACL
		page
	Create IP-Based ACL	Access Control > IPv4-Based ACL
		page
	Configure QoS	Quality of Service > General >
		QoS Properties page
	Configure Port Mirroring	Administration > Diagnostics >
		Port and VLAN Mirroring page

There are two hot links on the Getting Started page that take you to Cisco web pages for more information. Clicking on the Support link takes you to the device product support page, and clicking on the Forums link takes you to the Cisco Support Community page.

Interface Naming Conventions

Within the web-based interface, interfaces are denoted by concatenating the following elements:

•Type of interface—The following types of interfaces are found on the various types of devices:

-Fast Ethernet (10/100 bits)—These are displayed as FE.

-Gigabit Ethernet (10/100/1000 bits)—These are displayed as GE.

-LAG (Port Channel)—These are displayed as LAG.

-VLAN—These are displayed as VLAN.

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Window Navigation

- Tunnel —These are displayed as Tunnel.

•Interface Number—Port, LAG, tunnel, or VLAN ID.

Window Navigation

This section describes the features of the web-based interface.

Application Header

Application Header

The Application Header appears on every page. It provides the following application links:

Application Link			Description
Name
			A flashing red X icon displayed to the left of the Save
			application link indicates that Running Configuration
	Save
			changes have been made have not yet been saved to
			the Startup Configuration file. The flashing of the red X
			can be disabled on the Copy/Save Configuration page.
			Click Save to display the Copy/Save Configuration
			page. Save the Running Configuration file by copying it
			to the Startup Configuration file type on the switch.
			After this save, the red X icon and the Save application
			link are no longer displayed. When the switch is
			rebooted, it copies the Startup Configuration to the
			Running Configuration and sets the switch parameters
			according to the data in the Running Configuration.
Username			Displays the name of the user logged on to the switch.
			The default username is cisco. (The default password
			is cisco)

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Window Navigation

Application Link			Description
Name
Language Menu			This menu provides the following options:
			• Select a language: Select one of the languages
			that appear in the menu. This language will be
			the web-based interface language.
			• Download Language: Add a new language to
			the switch. To upgrade a language file, use the
			Upgrade/Backup Firmware/Language page.
			• Delete Language: Deletes the second
			language on the switch. The first language
			(English) cannot be deleted.
Logout			Click to log out of the web-based interface.
About			Click to display the switch name and device version
			number.
Help			Click to display the online help.
			The SYSLOG Alert Status icon appears when a
			SYSLOG message, above the critical severity level, is
	Alert
			logged. Click the icon to open the RAM Memory page.
			After you access this page, the SYSLOG Alert Status
			icon is no longer displayed. To display the page when
			there is not an active SYSLOG message, click Status
			and Statistics > View Log > RAM Memory.

Management Buttons

Management Buttons

The following table describes the commonly-used buttons that appear on various pages in the system.

Button Name	Description
	Use the pull-down menu to configure the number of
	entries per page.

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Button Name	Description
	Indicates a mandatory field.
Add	Click to display the related Add page and add an entry
	to a table. Enter the information and click Apply to save
	it to the Running Configuration. Click Close to return to
	the main page. Click Save to display the Copy/Save
	Configuration page and save the Running
	Configuration to the Startup Configuration file type on
	the switch.
Apply	Click to apply the changes to the Running
	Configuration on the switch. If the switch is rebooted,
	the Running Configuration is lost, unless it is saved to
	the Startup Configuration file type or another file type.
	Click Save to display the Copy/Save Configuration
	page and save the Running Configuration to the
	Startup Configuration file type on the switch.
Cancel	Click to reset the changes made on the page.
Clear All Interfaces	Click to clear the statistics counters for all interfaces.
Counters
Clear Interface	Click to clear the statistics counters for the selected
Counters	interface.
Clear Logs	Clears log files.
Clear Table	Clears table entries.
Close	Returns to the main page. If any changes were not
	applied to the Running Configuration, a message
	appears.
Copper Test	Click Copper Test to perform the related test.

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Window Navigation

Button Name	Description
Copy Settings	A table typically contains one or more entries
	containing configuration settings. Instead of modifying
	each entry individually, it is possible to modify one
	entry and then copy the selected entry to multiple
	entries, as described below:
	1. Select the entry to be copied. Click Copy Settings
	to display the popup.
	2. Enter the destination entry numbers in the to field.
	3. Click Apply to save the changes and click Close to
	return to the main page.
Delete	After selecting an entry in the table, click Delete to
	remove.
Details	Click to display the details associated with the entry
	selected.
Edit	Select the entry and click Edit. The Edit page appears,
	and the entry can be modified.
	1. Click Apply to save the changes to the Running
	Configuration.
	2. Click Close to return to the main page.
Go	Enter the query filtering criteria and click Go. The
	results are displayed on the page.
Refresh	Click to manually refresh the data on the page.
View All Interfaces	Click to see the statistics counters for all interfaces on
Statistics	a single page.
View Interface	Click to see the statistics counters for the selected
Statistics	interface on a single page.

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2

Status and Statistics

This chapter describes how to view switch statistics, and includes the following topics:

•Viewing Ethernet Interface

•Viewing Etherlike Statistics

•Viewing TCAM Utilization

•Viewing Fan Status and Temperature

•Managing RMON

Viewing Ethernet Interface

The Interface page displays traffic statistics per interface. The refresh rate of the information can be selected. This page is useful for analyzing the amount of traffic that is both sent and received and its dispersion (Unicast, Multicast, and Broadcast).

To view Ethernet statistics and/or set the refresh rate:

STEP 1 Click Status and Statistics > Interface.

STEP 2 Enter the following information:

•Interface—Select the port or LAG for which the Ethernet statistics are displayed.

•Refresh Rate—Select the time period that passes before the Ethernet statistics are refreshed. The available options are:

-No Refresh—Statistics are not refreshed.

-15 sec—Statistics are refreshed every 15 seconds.

-30 sec—Statistics are refreshed every 30 seconds.

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Viewing Ethernet Interface

-60 sec—Statistics are refreshed every 60 seconds.

The Receive Statistics area displays the following fields about incoming packets:

•Total Bytes (Octets)—Octets received, including bad packets and FCS octets, but excluding framing bits.

•Unicast Packets—Good Unicast packets received.

•Multicast Packets—Good Multicast packets received.

•Broadcast Packets—Good Broadcast packets received.

•Packets with Errors—Packets with errors received.

The Transmit Statistics area displays the following fields about outgoing packets:

•Total Bytes (Octets)—Octets transmitted, including bad packets and FCS octets, but excluding framing bits.

•Unicast Packets—Good Unicast packets transmitted.

•Multicast Packets—Good Multicast packets transmitted.

•Broadcast Packets—Good Broadcast packets transmitted.

STEP 3 Click Clear Interface Counters to clear the statistics counters for the selected interface.

STEP 4 Click Refresh to manually refresh the statistics counters for the selected interface.

STEP 5 Click View All Interfaces Statistics to see the statistics counters for all interfaces on a single page. The Interface Statistics Table displays the above counters for all interfaces. From this page you can perform the following actions:

•Select the refresh rate from the Refresh Rate drop-down menu.

•Select an interface and click Clear Interface Counters to clear the statistics counters for the selected interface.

•Click Clear All Interface Counters to clear the statistics counters for all interfaces.

•Select an interface and click View Interface Statistics to see the statistics counters for the selected interface on a single page.

•Click Refresh to manually refresh the statistics counters for all interfaces.

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Viewing Etherlike Statistics

Viewing Etherlike Statistics

The Etherlike page displays statistics per interface according to the Etherlike MIB standard definition. The refresh rate of the information can be selected. This page provides more detailed information regarding errors in the physical layer (Layer 1), which might disrupt traffic.

To view Etherlike statistics and/or set the refresh rate:

STEP 1 Click Status and Statistics > Etherlike.

STEP 2 Enter the following information:

•Interface—Select the port or LAG for which the Etherlike statistics are displayed.

•Refresh Rate—Select the time period that passes before the Etherlike statistics are refreshed.

The following fields are displayed for the selected interface:

•Frame Check Sequence (FCS) Errors—Number of received frames that failed the Cyclic Redundancy Checks (CRC).

•Single Collision Frames—Number of frames involved in a single collision, but were successfully transmitted.

•Late Collisions—Number of collisions that have been detected after the first 512 bits of data.

•Excessive Collisions—Number of transmissions due to excessive collisions.

•Oversize Packets—Number of packets greater than 1518 octets received.

•Internal MAC Receive Errors—Number of frames rejected because of receiver errors.

•Pause Frames Received—Number of received flow control pause frames.

•Pause Frames Transmitted—Number of flow control pause frames transmitted from the selected interface.

STEP 3 Click Clear Interface Counters to clear the statistics counters for the selected interface.

STEP 4 Click Refresh to manually refresh the statistics counters for the selected interface.

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Viewing TCAM Utilization

STEP 5 Click View All Interfaces Statistics to see the statistics counters for all interfaces on a single page. The Etherlike Statistics Table displays the above counters for all interfaces. From this page you can perform the following actions:

•Select the refresh rate from the Refresh Rate drop-down menu.

•Select an interface and click Clear Interface Counters to clear the statistics counters for the selected interface.

•Click Clear All Interface Counters to clear the statistics counters for all interfaces.

•Select an interface and click View Interface Statistics to see the statistics counters for the selected interface on a single page.

•Click Refresh to manually refresh the statistics counters for all interfaces.

Viewing TCAM Utilization

The switch architecture uses a Ternary Content Addressable Memory (TCAM) to support packet actions in wire speed. TCAM holds the rules produced by applications (such as ACL and QoS) and the system-created rules.

Only system application allocates rules upon its initiation.

To view TCAM utilization, click Status and Statistics > TCAM Utilization.

The following fields are displayed:

•Maximum TCAM Entries—Maximum TCAM Entries available.

•In Use—Number of TCAM entries used.

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Viewing Fan Status and Temperature

Viewing Fan Status and Temperature

The Fan and Thermal Status page displays the fan and temperature status of the switches with PoE capabilities.

The following table lists the number of fan channels and temperature channels applicable on different PoE switch models:

Model	Number of Fan	Number of Temperature
	Channels	Channels
SF220-24P	2	2
SF220-48P	4	2
SG220-26P	2	2
SG220-28MP	3	2
SG220-50P	4	2

To view the fan and temperature status, click Status and Statistics > Fan and

Thermal Status.

The following fields are displayed:

•FAN x Status—Displays the operation status of the switch fan(s).

-Operational Status—Displays OK if the fan operates normally, or displays Fault if the fan does not operate normally.

-Speed Value—Displays the fan speed in Revolutions Per Minute (RPM).

•Thermal x Status—Displays the status of the switch thermal(s).

-Operational Status—Displays OK when the thermal operates normally, or displays Fault when the thermal does not operate normally.

-Temperature Value—Displays the current temperature in Celsius.

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Viewing Fan Status and Temperature

-Temperature Status—Displays the current temperature status. The possible values are:

Green—Indicates that the current temperature is lower than the yellow threshold.

Yellow—Indicates that the current temperature is greater than the yellow threshold, but lower than the red threshold.

Red—Indicates that the current temperature is greater than the red threshold.

-Yellow Threshold—Displays the yellow threshold value of the temperature thermal.

-Red Threshold—Displays the red threshold value of the temperature thermal.

The following table lists the yellow and red threshold values for two thermals applicable on different PoE switch models:

Model	Yellow	Red	Yellow	Red
	Threshold of	Threshold of	Threshold of	Threshold of
	Thermal 1	Thermal 1	Thermal 2	Thermal 2
SF220-24P	129°F (54°C)	138°F (59°C)	131°F (55°C)	140°F (60°C)
SF220-48P	118°F (48°C)	129°F (54°C)	120°F (49°C)	131°F (55°C)
SG220-26P	126°F (52°C)	133°F (56°C)	136°F (58°C)	144°F (62°C)
SG220-28MP	118°F (48°C)	129°F (54°C)	120°F (49°C)	131°F (55°C)
SG220-50P	124°F (51°C)	135°F (57°C)	122°F (50°C)	131°F (55°C)

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Managing RMON

Managing RMON

Remote Networking Monitoring (RMON) is an SNMP specification that enables an SNMP agent in the switch to proactively monitor traffic statistics over a given period and send traps to an SNMP manager. The local SNMP agent compares actual, real-time counters against predefined thresholds and generates alarms, without the need for polling by a central SNMP management platform. This is an effective mechanism for proactive management, provided that you have right thresholds set relative to your network’s base line.

RMON decreases the traffic between the manager and the switch because the SNMP manager does not have to frequently poll the switch for information, and enables the manager to get timely status reports because the switch reports events as they occur.

With this feature, you can perform the following actions:

•View the current statistics (since the counter values were cleared). You can also collect the values of these counters over a period of time, and then view the table of collected data, where each collected set is a single line of the History Table.

•Define interesting changes in counter values, such as “reached a certain number of late collisions” (defines the alarm), and then specify what action to perform when this event occurs (log, trap, or log and trap).

NOTE For RMON configuration to be effective, make sure that the SNMP service is enabled on the switch.

This section includes the following topics:

•Viewing RMON Statistics

•Configuring and Viewing RMON Histories

•Configuring and Viewing RMON Events

•Configuring RMON Alarms

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Managing RMON

Viewing RMON Statistics

The Statistics page displays detailed information regarding packet sizes and some information regarding physical layer errors. The information shown is according to the RMON standard. An oversized packet is defined as an Ethernet frame with the following criteria:

•Packet length is greater than MRU byte size.

•Collision event has not been detected.

•Late collision event has not been detected.

•Received (Rx) error event has not been detected.

•Packet has a valid CRC.

To view RMON statistics and/or set the refresh rate:

STEP 1 Click Status and Statistics > RMON > Statistics.

STEP 2 Enter the following information:

•Interface—Select the port or LAG for which RMON statistics are displayed.

•Refresh Rate—Select the time period that passes before RMON statistics are refreshed.

The following fields are displayed for the selected interface:

•RMON Received Bytes (Octets)—Number of octets received, including bad packets and FCS octets, but excluding framing bits.

•RMON Drop Events—Number of packets that were dropped.

•RMON Received Packets —Number of packets received, including bad packets, Multicast, and Broadcast packets.

•RMON Broadcast Packets Received—Number of good Broadcast packets received. This number does not include Multicast packets.

•RMON Multicast Packets Received—Number of good Multicast packets received.

•RMON CRC & Align Errors—Number of CRC and Align errors that have occurred.

•RMON Undersize Packets—Number of undersized packets (less than 64 octets) received.

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•RMON Oversize Packets—Number of oversized packets (over 1518 octets) received.

•RMON Fragments—Number of fragments (packets with less than 64 octets, excluding framing bits, but including FCS octets) received.

•RMON Jabbers—Number of received packets that were longer than 1632 octets. This number excludes frame bits, but includes FCS octets that had either a bad FCS (Frame Check Sequence) with an integral number of octets (FCS Error) or a bad FCS with a non-integral octet (Alignment Error) number. A Jabber packet is defined as an Ethernet frame that satisfies the following criteria:

-Packet data length is greater than MRU.

-Packet has an invalid CRC.

-RX error event has not been detected.

•RMON Collisions—Number of collisions received. If Jumbo Frames are enabled, the threshold of Jabber Frames is raised to the maximum size of Jumbo Frames.

•Frames of 64 Bytes—Number of frames, containing 64 bytes that were received.

•Frames of 65 to 127 Bytes—Number of frames, containing 65 to 127 bytes that were received.

•Frames of 128 to 255 Bytes—Number of frames, containing 128 to 255 bytes that were received.

•Frames of 256 to 511 Bytes—Number of frames, containing 256 to 511 bytes that were received.

•Frames of 512 to 1023 Bytes—Number of frames, containing 512 to 1023 bytes that were received.

•Frames Greater than 1024 Bytes—Number of frames, containing 1024 to 2000 bytes, and Jumbo Frames, that were received.

STEP 3 Click Clear Interface Counters to clear RMON statistics counters for the selected interface.

STEP 4 Click Refresh to manually refresh RMON statistics counters for the selected interface.

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Managing RMON

STEP 5 Click View All Interfaces Statistics to view RMON statistics counters for all interfaces on a single page. The RMON Statistics Table displays the above counters for all interfaces. From this page you can perform the following actions:

•Select the refresh rate from the Refresh Rate drop-down menu.

•Select an interface and click Clear Interface Counters to clear RMON statistics counters for the selected interface.

•Click Clear All Interfaces Counters to clear RMON statistics counters for all interfaces.

•Select an interface and click View Interface Statistics to see RMON statistics counters for the selected interface on a single page.

•Click Refresh to manually refresh RMON statistics counters for all interfaces.

Configuring and Viewing RMON Histories

RMON can be used to monitor statistics per interface. Use the History Control Table page to define the sampling frequency, amount of samples to store, and the interface from where to gather the data. After the data is sampled and stored, it appears on the History Table page that can be viewed by clicking History Table.

Configuring RMON History Control Samples

Configuring RMON History Control Samples

To define RMON control sample:

STEP 1 Click Status and Statistics > RMON > History.

RMON is allowed by standard to not grant all requested samples, but rather to limit the number of samples per request. The Current Number of Samples field displays the sample number actually granted to the request that is equal or less than the requested value.

STEP 2 Click Add to add a history control sample.

STEP 3 Enter the following information:

•New History Entry—Displays the number of the history entry.

•Source Interface—Select the port or LAG from where the history samples are to be taken.

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•Max No. of Samples to Keep—Enter the number of samples to store.

•Interval—Enter the time in seconds that samples were collected from the interface.

•Owner—Enter the RMON station or user that requested the RMON information.

STEP 4 Click Apply. The RMON history control sample is added, and the Running Configuration is updated.

STEP 5 Click History Table to view the actual statistics.

Viewing RMON History Statistics

Viewing RMON History Statistics

The History Table page displays interface-specific statistical network samplings. The samples are configured in the History Control Table described above.

To view RMON history statistics:

STEP 1 Click Status and Statistics > RMON > History.

STEP 2 Click History Table.

STEP 3 Select the entry number to display the samples associated with that history entry, and click Go.

The following fields are displayed for the selected history sample:

•History Entry No.—Number of the history entry.

•Owner—History entry owner.

•Sample No.—Statistics were taken from this sample.

•Drop Events—Number of dropped packets due to lack of network resources during the sampling interval. This may not represent the exact number of dropped packets, but rather the number of times dropped packets were detected.

•Bytes Received—Number of octets received that including bad packets and FCS octets, but excluding framing bits.

•Packets Received—Number of packets received, including bad packets, Multicast, and Broadcast packets.

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