User's Manual

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Catalyst 3750 Switch Software Configuration Guide
OL-8550-09
Chapter 7 Administering the Switch
Managing the MAC Address Table
Beginning in privileged EXEC mode, follow these steps to configure the switch to send MAC
address-move notification traps to an NMS host:
To disable MAC address-move notification traps, use the no snmp-server enable traps
mac-notification move global configuration command. To disable the MAC address-move notification
feature, use the no mac address-table notification mac-move global configuration command.
This example shows how to specify 172.20.10.10 as the NMS, enable the switch to send MAC address
move notification traps to the NMS, enable the MAC address move notification feature, and enable traps
when a MAC address moves from one port to another.
Switch(config)# snmp-server host 172.20.10.10 traps private mac-notification
Switch(config)# snmp-server enable traps mac-notification move
Switch(config)# mac address-table notification mac-move
You can verify your settings by entering the show mac address-table notification mac-move privileged
EXEC commands.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
snmp-server host host-addr {traps | informs} {version {1
| 2c | 3}} community-string notification-type
Specify the recipient of the trap message.
• For host-addr, specify the name or address of the
NMS.
• Specify traps (the default) to send SNMP traps
to the host. Specify informs to send SNMP
informs to the host.
• Specify the SNMP version to support. Version 1,
the default, is not available with informs.
• For community-string, specify the string to send
with the notification operation. Though you can
set this string by using the snmp-server host
command, we recommend that you define this
string by using the snmp-server community
command before using the snmp-server host
command.
• For notification-type, use the mac-notification
keyword.
Step 3
snmp-server enable traps mac-notification move Enable the switch to send MAC address move
notification traps to the NMS.
Step 4
mac address-table notification mac-move Enable the MAC address move notification feature.
Step 5
end Return to privileged EXEC mode.
Step 6
show mac address-table notification mac-move
show running-config
Verify your entries.
Step 7
copy running-config startup-config (Optional) Save your entries in the configuration file.