Cisco SF220-24, SF220-24P, SF220-48, SF220-48P, SG220-26 Administration Manual
...
ADMINISTRATION
Cisco 220 Series Smart Switches
Administration Guide Release 1.1.0.x
July 21, 2017
GUIDE
© 2016, 2017 Cisco Systems, Inc. All rights reserved.
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)
Contents
Chapter 1: Getting Started 10
Getting Started with the Web-based Interface 10
Before You Begin 11
Logging In to the Web-based Interface 11
HTTP/HTTPS 12
Changing the Administrative Password 13
Logging Out 14
Quick Start Switch Configuration 15
Interface Naming Conventions 16
Window Navigation 17
Chapter 2: Status and Statistics 21
Viewing Ethernet Interface 21
Viewing Etherlike Statistics 23
Viewing TCAM Utilization 24
Viewing Fan Status and Temperature 25
Managing RMON 27
Viewing RMON Statistics 28
Configuring and Viewing RMON Histories 30
Configuring and Viewing RMON Events 32
Configuring RMON Alarms 34
Chapter 3: Administration: System Logs 37
Configuring System Log Settings 37
Configuring Remote Logging Settings 39
Viewing Memory Logs 39
Viewing RAM Memory Logs 40
Viewing Flash Memory Logs 41
Chapter 4: Administration: File Management 42
Files and File Types 42
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File Actions 44
Upgrade/Backup Firmware/Language 45
Active Image 48
Download/Backup Configuration or Logs 49
Configuration File Properties 51
Copy/Save Configuration Files 52
DHCP Auto Configuration 53
Contents
Chapter 5: Administration: General Information 58
Device Models 59
Viewing System Summary 61
Configuring System Settings 63
Configuring Console Settings 64
Rebooting the Switch 64
Defining Idle Session Timeout 65
Ping a Host 66
Using Traceroute 66
Chapter 6: Administration: Time Settings 68
System Time Options 69
Configuring System Time 69
Configuring SNTP Server 71
Time Range 72
Absolute Time Range 73
Periodic Time Range 73
Chapter 7: Administration: Diagnostics 75
Testing Copper Ports 75
Viewing Optical Module Status 76
Configuring Port and VLAN Mirroring 77
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Contents
Viewing CPU Utilization 80
Chapter 8: Administration: Discovery 81
Configuring Bonjour 81
LLDP and CDP 82
Configuring LLDP 83
Configuring LLDP Properties 85
Configuring LLDP Port Settings 86
Configuring LLDP MED Network Policy 87
Configuring LLDP MED Port Settings 89
Viewing LLDP Port Status 90
Viewing LLDP Local Information 91
Viewing LLDP Neighbors Information 94
Viewing LLDP Statistics 95
Viewing LLDP Overloading 95
Configuring CDP 98
Configuring CDP Properties 98
Configuring CDP Port Settings 100
Viewing CDP Local Information 101
Displaying CDP Neighbor Information 103
Viewing CDP Statistics 104
Chapter 9: Port Management 106
Port Management Workflow 106
Configuring Basic Port Settings 107
Configuring Error Recovery Settings 110
Loopback Detection 111
How LBD Works 112
Configuring Loopback Detection 112
Default Settings and Configuration 112
Interactions with Other Features 112
Configuring LBD Workflow 113
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To configure Loopback Detection: 113
Contents
Configuring Link Aggregation 114
Load Balancing 114
LAG Management 115
Static and Dynamic LAG Workflow 116
Configuring LAG Management 116
Configuring LAG Settings 117
Configuring LACP 119
Configuring Energy Efficient Ethernet 121
Chapter 10: Power over Ethernet 123
PoE Considerations 123
PoE on the Switch 124
Configuring PoE Properties 126
Configuring PoE Port Settings 128
Chapter 11: Managing VLANs 131
VLANs 131
Configuring Default VLAN 133
Creating VLANs 134
Configuring Interface’s VLAN Settings 135
Configuring Port to VLAN 137
Viewing VLAN Membership 138
Configuring GVRP 140
Configuring Voice VLAN 141
Configuring Voice VLAN Properties 143
Configuring Telephony OUI 143
Adding Interfaces to Voice VLAN on Basis of OUIs 145
Chapter 12: Spanning Tree Protocol 147
STP Modes 147
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Contents
Configuring STP Status and Global Settings 148
Configuring STP Interface Settings 150
Configuring RSTP Interface Settings 151
Configuring Multiple Spanning Tree 153
Configuring MSTP Properties 154
Mapping VLANs to MST Instance 155
Configuring MSTP Instance Settings 156
Configuring MSTP Interface Settings 156
Chapter 13: MAC Address Tables 159
Types of MAC Addresses 159
Configuring Static MAC Addresses 160
Configuring Static MAC Address Filter 161
Configuring Dynamic MAC Address Aging Time 161
Querying Dynamic MAC Addresses 162
Configuring Reserved MAC Addresses 163
Chapter 14: Multicast Forwarding 164
Multicast Forwarding 164
Configuring Multicast Properties 167
Configuring IP Multicast Group Addresses 168
Configuring IGMP Snooping 169
Configuring MLD Snooping 171
Querying IGMP/MLD IP Multicast Groups 173
Configuring Multicast Router Ports 174
Configuring Forward All Multicast 175
Configuring Maximum IGMP and MLD Groups 176
Configuring Multicast Filtering 176
Configuring Multicast Filter Profiles 177
Configuring Interface Filter Settings 177
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Contents
Chapter 15: IP Configuration 179
IP Addressing 179
IPv4 Management and Interface 181
IPv6 Management and Interface 182
Configuring Domain Name System 183
Configuring General DNS Settings 184
Viewing Static and Dynamic DNS Servers 185
Configuring Host Mapping 185
Chapter 16: Configuring Security 187
Configuring Users 188
Configuring TACACS+ Servers 189
Configuring RADIUS Servers 191
Configuring Management Access Methods 193
Access Profile Rules, Filters, and Elements 193
Active Access Profile 194
Configuring Access Profiles 194
Configuring Profile Rules 196
Configuring Password Complexity Rules 198
Configuring Management Access Authentication 200
Configuring TCP/UDP Services 201
Configuring Storm Control 203
Configuring Port Security 205
Configuring 802.1X 207
802.1X Parameters Workflow 208
Defining 802.1X Properties 209
Defining 802.1X Port Authentication 209
Defining Host and Session Authentication 212
Viewing Authenticated Hosts 213
Configuring DoS Protection 214
Secure Core Technology (SCT) 214
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Default Configuration 214
Configuring DoS Security Suite Settings 215
Configuring DoS Interface Settings 216
Configuring SYN Protection 217
Contents
Configuring DHCP Snooping 218
Configuring DHCP Snooping Properties 219
Configuring DHCP Snooping on VLANs 220
Configuring DHCP Snooping Trusted Interfaces 220
Querying DHCP Snooping Binding Database 221
Viewing Option 82 Statistics 222
Configuring Option 82 Interface Settings 223
Configuring Option 82 Port CID Settings 223
Configuring IP Source Guard 224
Configuring IP Source Guard Interface Settings 224
Querying IP Source Binding Database 225
Configuring Dynamic ARP Inspection 226
ARP Cache Poisoning 227
How ARP Prevents Cache Poisoning 227
Interaction Between ARP Inspection and DHCP Snooping 228
Workflow to Configure ARP Inspection 228
Configuring ARP Inspection Properties 229
Configuring ARP Inspection Trusted Interfaces 230
Viewing ARP Inspection Statistics 231
Configuring ARP Inspection VLAN Settings 231
Chapter 17: Access Control 233
Access Control Lists 234
Configuring MAC-based ACLs 236
Configuring MAC-based ACEs 237
Configuring IPv4-based ACLs 239
Configuring IPv4-Based ACEs 240
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Contents
Configuring IPv6-based ACLs 243
Configuring IPv6-based ACEs 243
Configuring ACL Binding 246
Chapter 18: Quality of Service 248
QoS Features and Components 248
Workflow to Configure QoS Settings 250
Configuring QoS Properties 251
Configuring QoS Queues 252
Mapping CoS/802.1p to a Queue 253
Mapping IP Precedence to Queue 255
Mapping DSCP to Queue 255
Mapping Queues to CoS/802.1p 256
Mapping Queue to IP Precedence 256
Mapping Queue to DSCP 257
Configuring Interface Remark 257
Configuring Bandwidth 258
Configuring Egress Shaping per Queue 258
Configuring VLAN Rate Limit 259
Configuring VLAN Port Rate Limit 260
Configuring TCP Congestion Avoidance 261
Configuring QoS Basic Mode 261
Configuring Basic QoS Trust Mode 262
Configuring Basic QoS Interface Settings 263
Configuring QoS Advanced Mode 263
Configuring Advanced QoS Global Settings 265
Configuring Class Mapping 266
QoS Policers 267
Configuring Aggregate Policers 268
Configuring QoS Policies 269
Configuring Policy Class Maps 270
Configuring Policy Binding 271
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Contents
Chapter 19: SNMP 272
SNMP Versions and Workflow 272
Supported MIBs 275
Model Object IDs 276
Configuring SNMP Engine ID 276
Configuring SNMP Views 278
Configuring SNMP Groups 279
Managing SNMP Users 280
Configuring SNMP Communities 282
Configuring SNMP Notification Recipients 283
Configuring SNMPv1,2 Notification Recipients 284
Configuring SNMPv3 Notification Recipients 285
Appendix A: Where to Go From Here 287
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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
1
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
Interface Reference Guide
This section includes the following topics:
• Before You Begin
• Logging In to the Web-based Interface
• HTTP/HTTPS
• Changing the Administrative Password
• Logging Out
Cisco 220 Series Smart Switches Command Line
for more information about using the console interface.
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Getting Started
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
1
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 which 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
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.
1
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
Getting Started with the Web-based Interface
NOTE You do not need to input the username or password before 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:
1
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.
STEP 2 Click Apply.
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Getting Started
!
Getting Started with the Web-based Interface
The Getting Started 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 log on 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.
1
A red X icon displayed to the left of the Save application link indicates that Running
Configuration changes that 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 operation 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 l o g o u t , c l i c k 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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Getting Started
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
1
Initial
Setup
Device
Status
Change Management
Applications and Services
Change Device IP Address Administration > Management
Create VLAN VLAN Management > Create
Configure Port Settings Port Management > Port Setting
System Summary Status and Statistics > System
Port Statistics Status and Statistics > Interface
RMON Statistics Status and Statistics > RMON >
View Log Status and Statistics > View Log >
Security > TCP/UDP Services
page
Interface > IPv4 Interface page
VLAN page
page
Summary page
page
Statistics page
RAM Memory page
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Getting Started
Interface Naming Conventions
1
Category Link Name (on the Page) Linked Page
Quick
Access
Change Device Password Administration > User Accounts
page
Upgrade Device Software Administration > File Management
> Upgrade/Backup Firmware/
Language page
Backup Device
Configuration
Create MAC-Based ACL Access Control > MAC-Based ACL
Create IP-Based ACL Access Control > IPv4-Based ACL
Configure QoS Quality of Service > General >
Configure Port Mirroring Administration > Diagnostics >
Administration > File Management
> Download/Backup
Configuration/Log page
page
page
QoS Properties page
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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Getting Started
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
The Application Header appears on every page. It provides the following
application links:
1
Application Link
Name
Username Displays the name of the user logged on to the switch.
Language Menu
Logout Click to log out of the web-based interface.
About Click to display the switch name and device version
Description
The default username is cisco. (The default password
is cisco)
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.
number.
Help Click to display the online help.
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Getting Started
Window Navigation
1
Application Link
Name
Alert The SYSLOG Alert Status icon appears when a
Save A flashing red X icon displayed to the left of the Save
Description
SYSLOG message, above the critical severity level, is
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.
application link indicates that Running Configuration
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.
Management Buttons
The following table describes the commonly-used buttons that appear on various
pages in the system.
Button Name Description
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.
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Getting Started
Window Navigation
1
Button Name Description
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
Counters
Clear Interface
Counters
Clear Logs Clears log files.
Clear Table Clears table entries.
Close Returns to the main page. If any changes were not
Copper Test Click Copper Test to perform the related test.
Copy Settings A table typically contains one or more entries
Click to clear the statistics counters for all interfaces.
Click to clear the statistics counters for the selected
interface.
applied to the Running Configuration, a message
appears.
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 here:
1. Select the entry to be copied and click Copy
Settings.
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.
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Getting Started
Window Navigation
1
Button Name Description
Edit Select the entry and click Edit. The Edit page appears,
and the entry can be modified.
1. C li ck 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
Statistics
View Interface
Statistics
Click to see the statistics counters for all interfaces on
a single page.
Click to see the statistics counters for the selected
interface on a single page.
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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
2
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
-
-
15 sec
—Statistics are refreshed every 15 seconds.
—Statistics are not refreshed.
30 sec
-
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—Statistics are refreshed every 30 seconds.
Status and Statistics
Viewing Ethernet Interface
2
-
60 sec
The Receive Statistics area displays the following fields about incoming packets:
• Tot al B y tes (O ct ets )—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:
• Tot al B y tes (O ct ets )—Octets transmitted, including bad packets and FCS
octets, but excluding framing bits.
—Statistics are refreshed every 60 seconds.
• 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 statistics 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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Status and Statistics
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.
2
• 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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Status and Statistics
Viewing TCAM Utilization
STEP 5 Click View All Interfaces Statistics to see the statistics counters for all interfaces
2
on a single page. The Etherlike Statistics Table displays the statistics 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 that are currently using.
Cisco 220 Series Smart Switches Administration Guide Release 1.1.0.x 24
Status and Statistics
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:
2
Model Number of Fan
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:
x
• FAN
-
-
Status—Displays the operation status of the switch fans.
Operational Status
displays Fault if the fan does not operate normally.
Speed Value
—Displays OK if the fan operates normally, or
—Displays the fan speed in revolutions per minute (RPM).
Number of Temperature
Channels
x
• Thermal
Operational Status
-
or displays Fault when the thermal does not operate normally.
-
Temperature Value
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Status—Displays the status of the switch thermals.
—Displays OK when the thermal operates normally,
—Displays the current temperature in Celsius.
Status and Statistics
Viewing Fan Status and Temperature
-
Temperature Status
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.
—Displays the current temperature status. The
2
Yellow Threshold
-
temperature thermal.
-
Red Threshold
thermal.
The following table lists the yellow and red threshold values for two thermals
applicable on different PoE switch models:
Model Yellow
Threshold of
Thermal 1
SF220-24P 158
SF220-26P 203
SF220-28MP 167
SF220-48P 147
SF220-50P 158
—Displays the yellow threshold value of the
—Displays the red threshold value of the temperature
Red
Threshold of
Thermal 1
°F (70°C) 167°F (75°C) 171°F (77°C) 180°F (82°C)
°F (95°C) 210°F (99°C) 178°F (81°C) 185°F (85°C)
°F (75°C) 176°F (80°C) 152°F (67°C) 162°F (72°C)
°F (64°C) 156°F (69°C) 156°F (69°C) 165°F (74°C)
°F (70°C) 167°F (75°C) 167°F (75°C) 176°F (80°C)
Yel lo w
Threshold of
Thermal 2
Red
Threshold of
Thermal 2
Cisco 220 Series Smart Switches Administration Guide Release 1.1.0.x 26
Status and Statistics
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:
2
• 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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Status and Statistics
Managing RMON
2
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 packets, 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.
Cisco 220 Series Smart Switches Administration Guide Release 1.1.0.x 28
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