Cisco Systems SLM2008PTNA User Manual
ADMINISTRATION
Cisco Small Business
SG200 Series 8-port Smart Switches
GUIDE
Contents
Chapter 1: Getting Started 8
Starting the Web-Based Switch Configuration Utility 8
Launching the Utility 9
Logging In 9
Logging Out 10
Quick Start Device Configuration 11
Window Navigation 12
Application Header 12
Other Resources 13
Navigation Window 14
Management Buttons 14
Chapter 2: Viewing Statistics 18
System Summary 18
Displaying the System Summary 18
Configuring System Settings 21
Interface Statistics 22
Etherlike Statistics 23
802.1X EAP Statistics 24
IPv6 DHCP Statistics 25
RADIUS Statistics 26
RMON 27
Logs 29
RAM Memory Log 29
Flash Memory Log 30
Chapter 3: Administration 32
Configuring System Settings 33
Management Interface 34
Configuring an IPv4 Management Interface 34
Configuring an IPv6 Management Interface 36
Cisco Small Business SG200 Series 8-port Smart Switch 2
Adding IPv6 Addresses 36
IPv6 Default Router Table 37
Viewing and Adding IPv6 Neighbors 38
Contents
Managing User Accounts 39
Adding a User 39
Changing a User Password 40
Deleting a User 41
Enabling Management Services 42
Configuring the Idle Session Timeout 42
Login Sessions 42
Login History 43
Time Settings 43
Setting System Time 43
Configuring the SNTP Setting 46
Configuring SNTP Authentication 50
System Logs 51
Configuring Log Settings 52
Configuring Remote Log Servers 53
File Management 54
Upgrading and Backing Up Firmware and Language Files 56
Downloading and Backing Up the Configuration and Log Files 58
Downloading a Configuration File to Restore Settings 58
Backing Up the Configuration File and Logs 59
Delete Configuration 61
Copying and Saving Configuration Files 61
DHCP Auto Configuration 62
Overview 63
DHCP Server Message Details 63
Alternate TFTP Server and File Name 64
Configuration File Download Details 64
Setting DHCP Auto Configuration 67
Firmware Recovery Over HTTP 69
Downloading an Image or Boot Code File From the System Boot Prompt 71
Cisco Small Business SG200 Series 8-port Smart Switch 3
Downloading an Image or Boot Code File Using TFTP 71
Downloading an Image or Boot Code File Using XMODEM 72
Contents
Rebooting the Switch 74
Pinging Hosts 74
Configuring Control Packet Forwarding 75
Diagnostics 76
Testing Copper Ports 77
Configuring Port Mirroring 78
CPU/Memory Utilization 80
Enabling Bonjour 80
LLDP-MED 81
Configuring Global LLDP-MED Properties 82
Configuring LLDP-MED on a Port 83
LLDP-MED Port Status Details 85
LLDP-MED Neighbor Information 87
Configuring DHCP Client Vendor Options 89
Chapter 4: Port Management 90
Configuring Port Settings 90
Link Aggregation 92
Configuring LAGs 92
Configuring LAG Settings 93
Configuring LACP 94
Configuring PoE 96
Configuring PoE Properties 96
Configuring PoE Port Settings 98
Green Ethernet 100
Configuring Green Ethernet Properties 100
Configuring Green Ethernet Port Settings 101
Chapter 5: VLAN Management 103
Creating VLANs 104
Cisco Small Business SG200 Series 8-port Smart Switch 4
Contents
Configuring VLAN Interface Settings 104
Changing the Interface VLAN Mode 106
Configuring VLAN Membership 108
Configuring Port to VLAN 109
Configuring Port VLAN Membership 110
Setting the Default VLAN 111
Voice and Media 112
Displaying and Adding Telephony OUI 113
Configuring OUI Based Voice and Media 113
Configuring SIP/H323 Based Voice and Media 114
Media VLAN 115
Auto VoIP Sessions 117
Chapter 6: Spanning Tree 118
Overview of Spanning Tree 118
Configuring STP Status and Global Settings 119
Configuring Global and Bridge Settings 119
Configuring STP Interface Settings 121
RSTP Interface Settings 123
Chapter 7: MAC Address Tables 127
Configuring Static MAC Addresses 127
Configuring the Aging Time for Dynamic Addresses 129
Dynamic MAC Addresses 129
Chapter 8: Multicast 131
Multicast Properties 132
Configuring a Multicast Forwarding Mode on all VLANs 132
Configuring Multicast Properties on an Individual VLAN 133
Configuring MAC Group Addresses 133
Viewing the MAC Group Address Table 134
Adding a Static MAC Group Address Table Entry 134
Cisco Small Business SG200 Series 8-port Smart Switch 5
Configuring MAC Address Group Port Membership 135
Contents
Configuring Group-to-Port 135
Configuring IGMP Snooping 136
Configuring MLD Snooping 138
Configuring IGMP Multicast Router Interfaces 140
Configuring MLD Multicast Router Interfaces 141
Chapter 9: IP Configuration 142
ARP Table 142
Domain Name System 142
Configuring DNS Servers 143
Configuring Global DNS Settings 143
Adding DNS Servers 144
Hostname Mapping 144
Configuring Static DNS Mappings 144
Viewing and Deleting Dynamic DNS Entries 145
Chapter 10: Security 146
RADIUS 146
Configuring Global RADIUS Settings 147
Adding a RADIUS Server 147
Password Strength 149
Management Access Profile Rules 150
Configuring an Access Profile and Rules 150
Modifying and Deleting Access Profiles and Rules 152
Authentication Methods 153
Storm Control 154
Port Security 155
Enabling Port Security 155
Viewing and Configuring Secure MAC Addresses 157
802.1X 157
Defining 802.1X Properties 158
Cisco Small Business SG200 Series 8-port Smart Switch 6
Modifying Port PAE Capabilities 159
Configuring Port Authentication 160
Configuring Supplicant Port Authentication 162
Displaying Authenticated Hosts 163
Contents
Chapter 11: Quality of Service 164
QoS Properties 165
Defining Queues 166
Queue Configuration Recommendations 167
Configuring Queues 167
Mapping CoS/802.1p Priorities to Queues 168
Mapping IP Precedence to Queues 170
Mapping DSCP Values to Queues 171
Defining Rate Limit Profiles 172
Applying Rate Limit Profiles to Interfaces 173
Traffic Shaping 174
Cisco Small Business SG200 Series 8-port Smart Switch 7
Getting Started
This chapter provides an introduction to the web-based switch configuration
utility and includes the following topics:
• Starting the Web-Based Switch Configuration Utility
• Quick Start Device Configuration
• Window Navigation
1
Starting the Web-Based Switch Configuration Utility
This section describes how to navigate the web-based switch configuration utility.
Browsers have the following restrictions:
• If you are using Internet Explorer 8, open a browser window and configure
the following settings:
Click To ol s > Internet Options and then select the Security tab. Select
Local Intranet and click Sites. Click Advanced and then click Add. Add the
intranet address of the switch (http://<ip-address>) to the local intranet
zone. The IP address can also be specified as the subnet IP address, so that
all addresses in the subnet are added to the local intranet zone.
• If you are using Internet Explorer 6, you cannot directly use an IPv6 address
to access the switch. You can, however, use the Domain Name System
(DNS) server to create a domain name that contains the IPv6 address, and
then use that domain name in the address bar in place of the IPv6 address.
• If you have multiple IPv6 interfaces on your management station, use the
IPv6 global address instead of IPv6 link local address to access the switch
from your browser.
• Screen resolutions at 800x600 or lower in Internet Explorer browsers and
Firefox 3.6 are not supported by the web-based switch configuration utility.
Cisco Small Business SG200 Series 8-port Smart Switch 8
Getting Started
Starting the Web-Based Switch Configuration Utility
Launching the Utility
To open the web-based switch configuration utility:
STEP 1 Open a web browser.
STEP 2 Enter the IP address of the switch that you are configuring in the address bar on
the browser, and then press Enter. (The factory default IP address is
192.168.1.254.) The Log In page opens.
Logging In
To log in to the web-based switch configuration utility:
1
STEP 1 Enter the username and password. The factory default user name is cisco and the
default password is cisco.
Note: When the switch boots with the factory default configuration, the web-
based switch configuration utility appears in the default language. After you log in,
you can download additional languages by using the Upgrade/Backup Firmware/
Language page.
STEP 2 If this is the first time that you logged on with the default user name (cisco) and the
default password (cisco) or your password has expired, the Change Admin
Password page opens. Enter the new password, confirm it, click Apply, and then
click Close. (The characters ', ", %, and ? are not supported.) The new password is
saved.
NOTE Password complexity is enabled by default and the new password must comply to
the default password complexity rule defined by the password strength. (See
Adding a User for more information.) The password strength check can be
temporarily disabled by selecting the Disable Password Strength Enforcement
option.
STEP 3 Click Login.
When the login attempt is successful, the Getting Started page opens.
If you entered an incorrect user name or password, an error message is displayed
and the Log In page remains displayed on the screen.
NOTE When logging in by using HTTP or HTML, if you are provided an option to choose
from more than one network port, select the lowest number port.
Cisco Small Business SG200 Series 8-port Smart Switch 9
Getting Started
!
Starting the Web-Based Switch Configuration Utility
Select Don’t show this page on startup to prevent the Getting Started page from
being displayed each time that you logon to the system. If you select this option,
the System Summary page is opened instead of the Getting Started page.
Logging Out
By default, the application automatically logs you out after 10 minutes of inactivity.
See Configuring the Idle Session Timeouts for instructions on changing the
default timeout period.
To log out at any time, click Logout in the top right corner of any page.
CAUTION Unless the Running Configuration is copied to the Startup Configuration file type,
all changes made since the last time the file type was saved are lost if the switch is
rebooted. We recommend that you save the Running Configuration to the Startup
Configuration file type before logging off to preserve any changes you made
during this session.
1
A red X icon displayed to the left of the Save button indicates that Running
Configuration changes have been made that have not yet been saved to the Startup
Configuration file type.
When you click Save, the Download/Backup Configuration/Log page displays
(see Downloading and Backing Up the Configuration and Log Files). Save the
Running Configuration by copying it to the Startup Configuration file type. After this
save, the red X icon and the Save button no longer display.
Cisco Small Business SG200 Series 8-port Smart Switch 10
Getting Started
Quick Start Device Configuration
Quick Start Device Configuration
To simplify device configuration through quick navigation, the Getting Started
page provides links to the most commonly-used pages.
Links on the Getting Started Page
Category Link Name (on the Page) Linked Page
Initial Setup Change Device IP Address IPv4 Interface
Create VLAN Create VLAN
Configure Port Settings Port Settings
1
Device
Status
Quick
Access
System Summary System Summary
Port Statistics Interface
RMON Statistics RMON Statistics
View Log RAM Memory
Change Device Password User Accounts
Upgrade Device Software Upgrade/Backup Firmware/
Language
Backup Device
Configuration
Configure QoS QoS Properties
Configure Port Mirroring Port Mirroring
Download/Backup Configuration/
Log
Cisco Small Business SG200 Series 8-port Smart Switch 11
Getting Started
Window Navigation
Window Navigation
This section describes the features of the web-based switch configuration utility.
Application Header
The Application Header is displayed on every page. It provides the following
buttons:
Buttons
Name Description
1
The Syslog Alert Status button (red circle with an X) is
displayed when a new Syslog message, above the critical
severity level, is logged. Click to open the Status and
Statistics > View Log > RAM Memory Log page. After
you access this page, the Syslog Alert Status button is no
longer displayed.
A red X icon, displayed to the left of the Save button,
indicates that configuration changes have been made and
have not yet been saved to the Startup Configuration file.
When you click this button, the Download/Backup
Configuration/Log page displays. Save the Running
Configuration by copying it to the Startup Configuration
file type. After you click Apply to save this file, the red X
icon and the Save button are no longer displayed. When
the switch is rebooted, it copies the Startup Configuration
file type to the Running Configuration and sets the switch
parameters according to the data in the Running
Configuration.
User The name of the user logged on to the switch. The default
user name is cisco.
Language Menu Select a language or load a new language file into the
device. If the language required is displayed in the menu,
select it. If not, select Download Language. For more
information about adding a new language, refer to the
Upgrade/Backup Firmware/Language page.
Cisco Small Business SG200 Series 8-port Smart Switch 12
Getting Started
Window Navigation
1
Buttons (Continued)
Name Description
Log Out Click to log out of the web-based switch configuration
utility.
About Click to display the switch type and switch version
number.
Help Click to display the online help.
Other Resources
You can use the following links on the Getting Started page for additional
information and assistance with using your switch:
• Support—Displays the support web page for Cisco Small Business
Managed Switches.
• Forums—Displays the web page for the Cisco Small Business Support
Community.
Cisco Small Business SG200 Series 8-port Smart Switch 13
Getting Started
Window Navigation
1
Navigation Window
A navigation window is located on the left side of each page. Click a top-level
category to display links to related pages. Links that are preceded by an arrow are
subcategories that expand to display the related page links.
Management Buttons
The following table describes the commonly-used buttons that appear on various
pages in the system.
Management Buttons
Name Description
Depending on the number of pages and the currently
displayed page, use these features to navigate through
the pages of the table. Click |< to go to the first page,
click < to go to the previous page, click > to go to the
next page, and click >| to go to the last page. Use the
Page <number> of <number> drop-down list to choose
a particular page.
Cisco Small Business SG200 Series 8-port Smart Switch 14
Getting Started
Window Navigation
1
Management Buttons (Continued)
Name Description
Select the number of table entries to display on each
page.
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. Click
Close to return to the main page.
Note: Your changes are applied to the running
configuration only. If the switch is rebooted, the running
configuration is lost. To save your changes to the startup
configuration, click Save. For more information, see
Copying and Saving Configuration Files.
Apply Click to apply the changes that you entered on the
selected page.
Note: Your changes are applied to the running
configuration only. If the switch is rebooted, the running
configuration is lost. To save your changes to the startup
configuration, click Save. For more information, see
Copying and Saving Configuration Files.
Cancel Click to “undo” the changes that you made on the page
and to reset the values to the previously applied entries.
Clear All Interfaces
Counters
Clear Interface
Counters
Clear Logs Click to clear the log files.
Clear Table Click to clear the table entries.
Close Click to return to the main page. If there are changes that
Click to clear the statistic counters for all interfaces.
Click to clear the statistic counters for the selected
interface.
were not applied to the Running Configuration, a
message is displayed.
Cisco Small Business SG200 Series 8-port Smart Switch 15
Getting Started
Window Navigation
1
Management Buttons (Continued)
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 it to multiple entries, as described below:
• Select the entry to be copied. Click Copy
Settings.
• Enter the destination entry numbers.
• Click Apply to save the changes to the Running
Configuration.
• Click Close to return to the main page.
Delete Select the entry in the table to be deleted and click
Delete. The entry is deleted.
Details Click to display details associated with the entry
selected on the main page.
Edit Select an entry and click Edit to open it for editing. The
Edit page opens, and the entry can be modified.
• Click Apply to save the changes to the Running
Configuration. (Note that there is no message to
confirm that the parameters have been saved to
the Running Configuration. This is normal
behavior.)
• Click Close to return to the main page.
Te st Click Te s t to perform related tests.
Clear Filter Click Clear Filter to redisplay data on a page with the
default criteria.
Go Click Go to filter the data displaying on a page using the
selected criteria.
Cisco Small Business SG200 Series 8-port Smart Switch 16
Getting Started
Window Navigation
1
Management Buttons (Continued)
Name Description
Sort buttons If the This table is sortable message appears below a
table, each column heading is a sort button. Click a
column heading to sort the records in ascending order,
based on the contents of the selected column. After the
sort is applied, an arrow appears in the column heading.
You can click this arrow to reverse the sort order.
Cisco Small Business SG200 Series 8-port Smart Switch 17
Viewing Statistics
This chapter describes how to display switch statistics.
It contains the following topics.
• System Summary
• Interface Statistics
• Etherlike Statistics
2
• 802.1X EAP Statistics
• IPv6 DHCP Statistics
• RADIUS Statistics
• Logs
System Summary
The System Summary page displays basic information such as the hardware
model description, software version, language packs, and system up time.
Displaying the System Summary
To view system information, click Status and Statistics > System Summary in the
navigation window. Or, click System Summary under Device Status on the
Getting Started page.
The System Summary page displays the following information:
• System Description—A description of the system.
• System Location—Physical location of the switch. Click Edit to display the
System Settings page and enter this value. (The characters ', ", %, and ? are
not supported.)
Cisco Small Business SG200 Series 8-port Smart Switch 18
Viewing Statistics
System Summary
2
• System Contact—Name of a contact person. Click Edit to display the
System Settings page and enter this value. (The characters ', ", %, and ? are
not supported.)
• Hostname—Name of the switch. Click Edit to display the System Settings
page and enter this value. By default, the switch hostname is composed of
the word switch concatenated with the three least significant bytes of the
switch MAC address (the six furthest right hexadecimal digits).
• System Object ID—The base object ID for the system’s management
information base (MIB).
• System Uptime—Time that has elapsed since the last reboot.
• Current Time—Current system time.
• Base MAC Address—Switch MAC address.
Hardware and Firmware Version Information
The following hardware and software information displays for the switch:
• Serial Number—Serial number of the switch.
• PID VID—Part number and version ID.
• Boot Version—Version of the boot code.
• Maximum Available Power (W)—(PoE switches only) Maximum available
power that can be delivered by the PoE ports.
• Threshold Power—(PoE switches only) The amount of power that must be
available for delivery in order for the port to be powered up.
• Consumed Power—(PoE switches only) Power currently being delivered to
the PoE devices connected to the switch.
• Firmware Version—Firmware version number of the active image.
• Firmware MD5 Checksum—MD5 checksum of the active image.
• Boot MD5 Checksum—MD5 checksum of the boot code.
You can view settings for each switch port. To display the Port Settings page, click
the port.
Cisco Small Business SG200 Series 8-port Smart Switch 19
Viewing Statistics
System Summary
2
Language Pack Table
This table displays information about the languages available on the switch. A
language can be selected by the administrator when logging into the configuration
utility.
English is the default language and it is built into the software. You can use the
Upgrade/Backup Firmware/Language page to download additional language
packs. Language files are available from the Cisco firmware download page.
The Language Pack Table displays the following information for each available
language:
• Language—Language name.
• Locale—Internet Engineering Task Force (IETF) locale code that identifies
the language and the country or region.
• Version—Language file version.
• MD5 Checksum—128-bit hash code used to check file integrity.
• File Size—The file size in KB.
• File Type—Indicates one of the following values:
- Built-In—Default language provided within the software and therefore
cannot be downloaded as a separate file.
- External—A language file that has been downloaded to the switch and
can be selected at login.
• Default—Displays Ye s to indicate that the web-based switch configuration
utility login page will display in this language whenever the switch is
rebooted.
• Status—Displays Active or Inactive. At log-in, the user can choose a
language. The selected language is the Active language.
• Number of Users—The number of management users currently logged in
and using this language.
TCP and UDP Services
This table lists the information for each service that uses TCP or UDP:
• Service Name—The commonly–used name of the service, if available, such
as HTTP.
• Type—The transport protocol used for this service (TCP or UDP).
Cisco Small Business SG200 Series 8-port Smart Switch 20
Viewing Statistics
System Summary
2
• Port—The Internet Assigned Numbers Authority (IANA) port number for the
service.
• IP Address—The IP address, if any, of a remote device that is connected to
this service on the switch.
• Remote Port—The IANA port number of any remote device communicating
with this service.
• State—The state of the service. For UDP, only connections in the Active state
display in the table. In the Active state, a connection is established between
the switch and a client or server. The TCP states are:
- Listen—The service is listening for connection requests.
- Active—A connection session is established and packets are being
transmitted and received.
- Established—A connection session is established between the switch
and a server or client, depending on each device’s role with respect to
this protocol.
Configuring System Settings
To configure the system settings:
STEP 1 Click Status and Statistics > System Summary. The System Summary page
opens.
STEP 2 Click Edit to modify the following settings:
• System Location—Enter the location where the switch is physically located.
• System Contact—Enter the name of a contact person.
• Hostname—Enter the hostname. Use only letters, digits, and hyphens. Host
names cannot begin or end with a hyphen. No other symbols, punctuation
characters, or blank spaces are permitted (as specified in RFC1033,
RFC1034, and RFC1035). The default hostname is the word switch
followed by the last three octets of the base MAC address. For example, a
switch with a MAC address of 010203040506 has the default hostname
switch040506.
STEP 3 Click Apply. Your changes are saved to the Running Configuration.
Cisco Small Business SG200 Series 8-port Smart Switch 21
Viewing Statistics
Interface Statistics
Interface Statistics
Use the Interface page to display statistics for received and transmitted packets.
To display this page, click Status and Statistics > Interface in the navigation
window, or click Port Statistics under Device Status on the Getting Started
page.
Select the interface (Port or LAG) for which you want to display statistics, then
select a refresh rate for the statistics. The following information displays for the
selected interface:
• To ta l By te s ( Oc te ts )—Total number of octets transmitted or received on the
• Unicast Packets—Total number of unicast packets transmitted or received
2
selected interface since the switch was last refreshed.
on the selected interface since the switch was last refreshed.
• Multicast Packets—Total number of multicast packets transmitted or
received on the selected interface since the switch was last refreshed.
• Broadcast Packets—Total number of broadcast packets transmitted or
received on the selected interface since the switch was last refreshed.
• Packets with Errors—Total number of packets with errors received on the
selected interface since the switch was last refreshed.
• STP BPDUs—Total number of Spanning Tree Protocol (STP) Bridge Protocol
Data Units (BPDUs) transmitted or received on the selected interface since
the switch was last refreshed.
• RSTP BPDUs—Total number of Rapid Spanning Tree Protocol BPDUs
transmitted or received on the selected interface since the switch was last
refreshed.
To clear statistics counters:
Click Clear Interface Counters to reset all counters to 0 for the selected
interface.
Click Clear All Interface Counters to reset all counters to 0 for all
interfaces.
Cisco Small Business SG200 Series 8-port Smart Switch 22
Viewing Statistics
Etherlike Statistics
Etherlike Statistics
The system collects and reports statistics on ports and LAGs in accordance with
RFC2665.
To display this page, click Status and Statistics > Etherlike in the navigation
window.
Select the interface (Port or LAG) for which you want to display statistics, then
select a refresh rate for the statistics. These statistics are cumulative since the last
time the page was refreshed. The following information displays for the selected
interface:
• Frame Check Sequence (FCS) Errors—FCS errors received.
• Single Collision Frames—Signal collision frame errors received.
2
• Late Collisions—Late collision frames received.
• Excessive Collisions—Excessive collision frames received.
• Multiple Collisions—Multiple collision frames received.
• Oversize Packets—Packets received that were longer than 1518 octets
(excluding framing bits and including FCS octets) and were otherwise wellformed.
• Internal MAC Receive Errors—Internal MAC errors received on the LAG or
interface.
• Alignment Errors—Packets received with alignment errors
• Pause Frames Received—Pause frames received on the LAG or interface.
• Pause Frames Transmitted—Pause frames transmitted from the LAG or
interface.
To clear statistics counters:
Click Clear Interface Counters to reset all counters to 0 for the selected
interface.
Click Clear All Interface Counters to reset all counters to 0 for all
interfaces.
Cisco Small Business SG200 Series 8-port Smart Switch 23
Viewing Statistics
802.1X EAP Statistics
802.1X EAP Statistics
The switch ports can be configured to use the IEEE 802.1X Extensible
Authentication Protocol (EAP) to control network access (see 802.1X). You can use
the 802.1X EAP page to display information about EAP packets received on a port.
To display the 802.1X EAP page, click Status and Statistics > 802.1X EAP in the
navigation window.
STEP 1 Select the Port for which you want to display statistics.
STEP 2 Select a Refresh Rate for the statistics. These statistics are cumulative since the
last time the page was refreshed.
The following information displays for the selected interface:
2
• EAPOL Frames Received—Valid Extensible Authentication Protocol over
LAN (EAPOL) frames received on the port.
• EAPOL Frames Transmitted—EAPOL frames transmitted through the port.
• EAPOL Start Frames Received—EAPOL Start frames received on the port.
• EAPOL Logoff Frames Received—EAPOL Logoff frames received on the
port.
• Invalid EAPOL Frames Received—Unrecognized EAPOL frames received
on this port.
• EAP Length Error Frames Received—EAPOL frames with an invalid packet
body length received on this port.
To clear statistics counters:
Click Clear Interface Counters to reset all counters to 0 for the selected
interface.
Click Clear All Interface Counters to reset all counters to 0 for all
interfaces.
Cisco Small Business SG200 Series 8-port Smart Switch 24
Viewing Statistics
IPv6 DHCP Statistics
IPv6 DHCP Statistics
The switch can be configured to allow management over an IPv6 interface, and to
receive its management IPv6 address through the Dynamic Host Configuration
Protocol (DHCPv6). See Management Interface for information on configuring
IPv6 and DHCP on the management interface. You can use the IPv6 DHCP
Statistics page to display information on transmitted and received DHCPv6
packets.
To display this page, click Status and Statistics > IPv6 DHCP Statistics in the
navigation window.
Select a refresh rate for the page. The page displays the following statistics, which
are cumulative since the last time the page refreshed.
• DHCPv6 Advertisement Packets Received
2
• DHCPv6 Reply Packets Received
• Received DHCPv6 Advertisement Packets Discarded
• Received DHCPv6 Reply Packets Discarded
• DHCPv6 Malformed Packets Received
• Total DHCPv6 Packets Received
• DHCPv6 Solicit Packets Transmitted
• DHCPv6 Request Packets Transmitted
• DHCPv6 Renew Packets Transmitted
• DHCPv6 Rebind Packets Transmitted
• DHCPv6 Release Packets Transmitted
• Total DHCPv6 Packets Transmitted
Click Clear Counters to reset all counters to 0.
Cisco Small Business SG200 Series 8-port Smart Switch 25
Viewing Statistics
RADIUS Statistics
RADIUS Statistics
The switch can be configured to communicate with a RADIUS server for user
authentication. To display the RADIUS Statistics page, click
Status and Statistics > RADIUS Statistics in the navigation window.
Select a RADIUS server from the list and select a refresh rate for the page. The
page displays the following statistics, which are cumulative since the last time the
page refreshed.
• Access Requests—The number of Authentication-Request packets
• Access Retransmissions—Number of Authentication-Request packets
• Access Accepts—Number of Authentication-Request packets accepted
2
transmitted to the RADIUS server.
retransmitted to the RADIUS server.
by the RADIUS server.
• Access Rejects—Number of Authentication-Request packets rejected by
the RADIUS server.
• Access Challenges—Number of Access-Challenge packets sent by the
RADIUS server to the switch.
• Malformed Access Responses—Number of reply packets from the
RADIUS server that were malformed.
• Bad Authenticators—Number of Authentication-Request packets that
contained invalid Message Authenticator attributes.
• Pending Requests—Number of Authentication-Request packets that were
sent to the server and have not been replied to.
• Timeouts—Number of Authentication-Request packets that were timed out
due to no response from the server.
• Unknown Types—Number of RADIUS packets of unknown type that were
received by the switch.
• Packets Dropped—Number of RADIUS packets dropped by the switch.
Click Clear All Statistics to reset all counters to 0.
Cisco Small Business SG200 Series 8-port Smart Switch 26
Viewing Statistics
RMON
RMON
2
RMON (Remote Networking Monitoring) is an SNMP specification that enables an
SNMP agent in the switch to 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 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. Use the RMON Statistics page to display details about
switch use, such as packet processing statistics and errors that have occurred on
the switch.
The RMON Statistics page displays detailed information regarding packet sizes
and information regarding physical layer errors. The information shown is
according to the RMON standard.
To view statistics:
STEP 1 Click Status and Statistics > RMON > Statistics in the navigation window.
STEP 2 Select the port or LAG for which you want to display statistics.
STEP 3 Select a refresh rate for the page.
The following information displays for the selected interface:
• Bytes Received—Octets received on the interface since the switch was last
refreshed. This number includes bad packets and FCS octets, but excludes
framing bits.
• Drop Events—Number of times that packets have been dropped on the
interface since the switch was last refreshed.
• Packets Received—Packets received on the interface, including bad
packets, multicast and broadcast packets, since the switch was last
refreshed.
• Broadcast Packets Received—Good broadcast packets received on the
interface since the switch was last refreshed. This number does not include
multicast packets.
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Viewing Statistics
RMON
2
• Multicast Packets Received—Good multicast packets received on the
interface since the switch was last refreshed.
• CRC & Align Errors—CRC and Align errors that have occurred on the
interface since the switch was last refreshed.
• Undersize Packets—Undersized packets (less than 64 octets) received on
the interface since the switch was last refreshed.
• Oversize Packets—Oversized packets (over 1518 octets) received on the
interface since the switch was last refreshed.
• Fragments—Fragments (packets with less than 64 octets, excluding
framing bits, but including frame check sequence octets) received on the
interface since the switch was last refreshed.
• Jabbers—Packets received that were more than 1518 octets long and had
an FCS error during the sampling session.
• Collisions—Collisions received on the interface since the switch was last
refreshed.
• Frames of 64 Bytes—64-byte frames received on the interface since the
switch was last refreshed.
• Frames of 65 to 127 Bytes—65-byte to 127-byte frames received on the
interface since the switch was last refreshed.
• Frames of 128 to 255 Bytes—128-byte to 255-byte frames received on the
interface since the switch was last refreshed.
• Frames of 256 to 511 Bytes—256-byte to 511-byte frames received on
the interface since the switch was last refreshed.
• Frames of 512 to 1023 Bytes—512-byte to 1023-byte frames received on
the interface since the switch was last refreshed.
• Frames of 1024 to 1518 Bytes—1024-byte to 1518-byte frames received
on the interface since the switch was last refreshed.
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Viewing Statistics
Logs
Logs
2
The switch generates messages to identify the state of the system and to assist in
diagnosing issues that arise during switch operation. Messages might be
generated in response to events, faults, or errors occurring on the platform and to
changes in configuration.
Logs of these messages are stored in RAM and flash memory. Entries in the flash
log—unlike those in RAM—are stored across reboots.
To access the log menu items, click Status and Statistics > View Log in the
navigation window. The log menu includes the following pages:
• RAM Memory Log
• Flash Memory Log
RAM Memory Log
Use the RAM Memory page to view information about specific RAM (cache) log
entries, including the time the log was entered, the log severity, and a description
of the log.
To display this page, click Status and Statistics > View Log > RAM Memory in
the navigation window.
NOTE This page might take up to 45 seconds to display when the table contains the
maximum number of entries.
The RAM Memory Log Table contains the following fields:
• Log Index—Numeric ID for the log entry.
• Log Time—Time at which the log was entered in the Log RAM Table.
• Severity—The log severity can be one of the following:
- Emergency (0)—System is unusable.
- Alert (1)—Action must be taken immediately.
- Critical (2)—Critical conditions.
- Error (3)—Error conditions.
- Warning (4)—Warning conditions.
- Notice (5)—Normal but significant conditions.
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Viewing Statistics
Logs
2
- Informational (6)—Informational messages.
- Debug (7)—Provides detailed information about an event.
You can use the Log Set tings page to select the severity levels that are
recorded in the log.
• Component - The software component or service that produced the log
entry.
• Description—The log description.
You can click Clear Logs to remove all log entries from RAM.
Flash Memory Log
The Flash Memory Log Files are persistent across reboots and contain information
that includes the time the log was entered, the log severity, and a description of
the event. Several log types are supported, and the system stores up to three
versions of each type.
The first few log entries that might be generated during the initial powering on of
the switch and booting from the factory default configuration might be important
to a troubleshooter. Therefore when the switch is first booted from the factory
default configuration, it places the first 32 messages into the Start-up log and the
balance of the messages are logged into the Operational log.
If the logs are cleared, the Start-up log is retained unless the switch is booted from
the factory default configuration. Only when the switch is booted from the factory
default configuration is the Start-up log cleared and repopulated.
To v ie w a F l a sh lo g :
STEP 1 Click Status and Statistics > View Log > Flash Memory in the navigation window.
STEP 2 Select a log type from the list:
• Default—Entries from the startup and operational logs.
• Startup—The first 32 log entries created during system restarts.
• Operational—Log entries created during system operation.
STEP 3 Select a log version to display.
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