Cisco IE-4000 Software Configuration Manual page 391

Configuring FlexLinks and the MAC Address-Table Move Update
Configuration Examples for the FlexLinks and MAC Address-Table Move Update
When a FlexLinks interface comes up, VLANs preferred on this interface are blocked on the peer interface and moved
to the forwarding state on the interface that has just come up. In this example, if interface Gigabit Ethernet1/1 comes up,
VLANs preferred on this interface are blocked on the peer interface Gigabit Ethernet1/2 and forwarded on Gigabit
Ethernet1/1.
Switch# show interfaces switchport backup
Switch Backup Interface Pairs:
Active Interface
------------------------------------------------------------------------
GigabitEthernet1/17
Vlans Preferred on Active Interface: 1-50
Vlans Preferred on Backup Interface: 60, 100-120
Switch# show interfaces switchport backup detail
Switch Backup Interface Pairs:
Active Interface
------------------------------------------------------------------------
FastEthernet1/3
Vlans Preferred on Active Interface: 1-2,5-4096
Vlans Preferred on Backup Interface: 3-4
Preemption Mode
Bandwidth : 10000 Kbit (Fa1/3), 100000 Kbit (Fa1/4)
Mac Address Move Update Vlan : auto
Configuring MAC Address-Table Move Update: Example
This example shows how to configure an access switch to send MAC address-table move update messages:
Switch(conf)# interface GigabitEthernet1/17
Switch(conf-if)# switchport backup interface GigabitEthernet1/18 mmu primary vlan 2
Switch(conf-if)# exit
Switch(conf)# mac address-table move update transmit
Switch(conf)# end
This example shows how to verify the configuration:
Switch# show mac-address-table move update
Switch-ID : 010b.4630.1780
Dst mac-address : 0180.c200.0010
Vlans/Macs supported : 1023/8320
Default/Current settings: Rcv Off/On, Xmt Off/On
Max packets per min : Rcv 40, Xmt 60
Rcv packet count : 5
Rcv conforming packet count : 5
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 : Po2
Rcv last src-mac-address : 000b.462d.c502
Rcv last switch-ID : 0403.fd6a.8700
Xmt packet count : 0
Xmt packet count this min : 0
Xmt threshold exceed count : 0
Xmt pak buf unavail cnt : 0
Xmt last interface : None
Backup Interface
GigabitEthernet1/18
Backup Interface
FastEthernet1/4
: off
State
Active Down/Backup Up
State
Active Down/Backup Up
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