Cisco Catalyst 4500 Series - Page 685

23-11
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL_28731-01
Chapter 23 Configuring Flex Links and MAC Address-Table Move Update
Configuring MAC Address-Table Move Update
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
Step 3
Switch(conf-if)# switchport backup interface
interface-id
or
Switch(conf-if)# switchport backup interface
interface-id mmu primary vlan vlan-id
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.
Step 4
Switch(conf-if)# end
Returns to global configuration mode.
Step 5
Switch(conf)# mac address-table move update
transmit
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.
Step 6
Switch(conf)# end
Returns to privileged EXEC mode.
Step 7
Switch# show mac address-table move update
Verifies the configuration.
Step 8
Switch# copy running-config startup config
(Optional) Saves your entries in the switch startup
configuration file.
Command Purpose