Adding And Removing Static Address Entries - Cisco Catalyst 3750 Software Configuration Manual

Managing the MAC Address Table
Command
Step 6 interface interface-id
Step 7
snmp trap mac-notification {added | removed}
Step 8
end
Step 9 show mac address-table notification interface
show running-config
Step 10 copy running-config startup-config
To disable the switch from sending MAC address notification traps, use the no snmp-server enable
traps mac-notification global configuration command. To disable the MAC address notification traps
on a specific interface, use the no snmp trap mac-notification {added | removed} interface
configuration command. To disable the MAC address notification feature, use the no mac address-table
notification global configuration command.
This example shows how to specify 172.20.10.10 as the NMS, enable the switch to send MAC address
notification traps to the NMS, enable the MAC address notification feature, set the interval time to 60
seconds, set the history-size to 100 entries, and enable traps whenever a MAC address is added on a port.
Switch(config)# snmp-server host 172.20.10.10 traps private
Switch(config)# snmp-server enable traps mac-notification
Switch(config)# mac address-table notification
Switch(config)# mac address-table notification interval 60
Switch(config)# mac address-table notification history-size 100
Switch(config)# interface fastethernet1/0/4
Switch(config-if)# snmp trap mac-notification added
You can verify the previous commands by entering the show mac address-table notification interface
and the show mac address-table notification privileged EXEC commands.

Adding and Removing Static Address Entries

A static address has these characteristics:
•
•
•
You can add and remove static addresses and define the forwarding behavior for them. The forwarding
behavior determines how a port that receives a packet forwards it to another port for transmission.
Because all ports are associated with at least one VLAN, the switch acquires the VLAN ID for the
address from the ports that you specify.
A packet with a static address that arrives on a VLAN where it has not been statically entered is flooded
to all ports and not learned.
Catalyst 3750 Metro Switch Software Configuration Guide
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It is manually entered in the address table and must be manually removed.
It can be a unicast address.
It does not age and is retained when the switch restarts.
Chapter 5
Purpose
Enter interface configuration mode, and specify the
Layer 2 interface on which to enable the SNMP
MAC address notification trap.
Enable the MAC address notification trap.
• Enable the MAC notification trap whenever a
MAC address is added on this interface.
• Enable the MAC notification trap whenever a
MAC address is removed from this interface.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration
file.
Administering the Switch
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