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Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
Chapter 18 Configuring Flex Links and the MAC Address-Table Move Update Feature
Configuring Flex Links and MAC Address-Table Move Update
Preemption Mode : off
Bandwidth : 10000 Kbit (Fa 0/3), 100000 Kbit (Fa0/4)
Mac Address Move Update Vlan : auto
Configuring the MAC Address-Table Move Update Feature
This section contains this information:
• Configuring a switch to send MAC address-table move updates
• Configuring a switch to get MAC address-table move updates
Beginning in privileged EXEC mode, follow these steps to configure an access switch to send MAC
address-table move updates:
To disable the MAC address-table move update feature, use the no mac address-table move update
transmit interface configuration command. To display the MAC address-table move update information,
use the show mac address-table move update privileged EXEC command.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
interface interface-id Specify the interface, and enter interface configuration mode.
The interface can be a physical Layer 2 interface or a port
channel (logical interface). The port-channel range is 1 to 48.
Step 3
no shutdown Enable the port, if necessary. By default, UNIs and ENIs are
disabled, and NNIs are enabled.
Step 4
switchport backup interface interface-id
or
switchport backup interface interface-id mmu
primary vlan vlan-id
Configure a physical Layer 2 interface (or port channel), as part
of a Flex Link pair with the interface. The MAC address-table
move update VLAN is the lowest VLAN ID on the interface.
Configure a physical Layer 2 interface (or port channel) and
specify 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 5
end Return to global configuration mode.
Step 6
mac address-table move update transmit Enable the access switch to send MAC address-table move
updates to other switches in the network if the primary link goes
down and the switch starts forwarding traffic through the standby
link.
Step 7
end Return to privileged EXEC mode.
Step 8
show mac address-table move update Verify the configuration.
Step 9
copy running-config startup config (Optional) Save your entries in the switch startup configuration
file.