Configuring Flex Links - Cisco 3750G - Catalyst Integrated Wireless LAN Controller Configuration Manual

Chapter 21 Configuring Flex Links and the MAC Address-Table Move Update Feature
Configuring Flex Links and MAC Address-Table Move Update
This section contains this information:
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Configuring Flex Links

Beginning in privileged EXEC mode, follow these steps to configure a pair of Flex Links:
Command
Step 1
configure terminal
Step 2 interface interface-id
Step 3
switchport backup interface interface-id
Step 4
end
Step 5
show interface [interface-id] switchport backup
Step 6 copy running-config startup config
This example shows how to configure an interface with a backup interface and to verify the
configuration:
Switch# configure terminal
Switch(conf)# interface gigabitethernet1/0/1
Switch(conf-if)# switchport backup interface gigabitethernet1/0/2
Switch(conf-if)# end
Switch# show interface switchport backup
Switch Backup Interface Pairs:
Active Interface Backup Interface State
------------------------------------------------------------------------
GigabitEthernet1/0/1 GigabitEthernet1/0/2 Active Up/Backup Standby
Beginning inprivileged EXEC mode, follow these steps to configure a preemption scheme for a pair of
Flex Links:
Command
Step 1
configure terminal
Step 2 interface interface-id
OL-8550-02
Configuring Flex Links, page 21-5
Configuring the MAC Address-Table Move Update Feature, page 21-6
Configuring Flex Links and MAC Address-Table Move Update
Purpose
Enter global configuration mode.
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.
Configure a physical Layer 2 interface (or port channel)
as part of a Flex Link pair with the interface. When one
link is forwarding traffic, the other interface is in standby
mode.
Return to privileged EXEC mode.
Verify the configuration.
(Optional) Save your entries in the switch startup
configuration file.
Purpose
Enter global configuration mode.
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.
Catalyst 3750 Switch Software Configuration Guide
21-5