Cisco Catalyst 4500 series Administration Manual page 685

Chapter 23 Configuring Flex Links and MAC Address-Table Move Update
Command
Step 3
Switch(conf-if)# switchport backup interface
interface-id
or
Switch(conf-if)# switchport backup interface
interface-id mmu primary vlan vlan-id
Step 4
Switch(conf-if)# end
Step 5
Switch(conf)# mac address-table move update
transmit
Step 6
Switch(conf)# end
Step 7
Switch# show mac address-table move update
Step 8
Switch# copy running-config startup config
To disable the MAC address-table move update feature on the access switch, enter the
no mac address-table move update transmit interface configuration command. To display the MAC
address-table move update information, enter the show mac address-table move update command.
This example shows how to configure an access switch to send MAC address-table move update
messages and to verify the configuration:
Switch# configure terminal
Switch(conf)# interface fastethernet1/1
Switch(conf-if)# switchport backup interface fastethernet1/0/2 mmu primary vlan 2
Switch(conf-if)# end
Switch(conf)# mac address-table move update transmit
Switch(conf)# end
Switch# show mac-address-table move update
Switch-ID : 01d0.2bfc.3180
Dst mac-address : 0180.c200.0010
Vlans/Macs supported : 4096/55000
Default/Current settings: Rcv Off/Off, Xmt Off/On
Max packets per min : Rcv 100, Xmt 120
Rcv packet count : 0
Rcv conforming packet count : 0
Rcv invalid packet count : 0
Rcv packet count this min : 0
Rcv threshold exceed count : 0
Rcv last sequence# this min : 0
Rcv last interface : None
Rcv last src-mac-address : 0000.0000.0000
Rcv last switch-ID : 0000.0000.0000
Xmt packet count : 0
Xmt packet count this min : 0
Xmt threshold exceed count : 0
Xmt pak buf unavail cnt : 0
Xmt last interface : fa1/2
OL_28731-01
Purpose
Configures a physical Layer 2 interface (or port channel),
as part of a Flex Links pair with the interface. The MAC
address-table move update VLAN is the lowest VLAN ID
on the interface.
Configures a physical Layer 2 interface (or port channel)
and specifies the VLAN ID on the interface, which is used
for sending the MAC address-table move update.
When one link is forwarding traffic, the other interface is
in standby mode.
Returns to global configuration mode.
Enables the access switch to send MAC address-table
move updates to other switches in the network if the
primary link shuts down and the switch starts forwarding
traffic through the standby link.
Returns to privileged EXEC mode.
Verifies the configuration.
(Optional) Saves your entries in the switch startup
configuration file.
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
Configuring MAC Address-Table Move Update
23-11