Configuring Vlan Load Balancing On Flex Links - Cisco ME 3400 Software Configuration Manual

Configuring Flex Links and MAC Address-Table Move Update
Command
Step 6
switchport backup interface interface-id preemption
delay delay-time
Step 7
end
Step 8
show interface [interface-id] switchport backup
Step 9 copy running-config startup config
This example shows how to configure the preemption mode as forced for a backup interface pair and to
verify the configuration:
Switch# configure terminal
Switch(conf)# interface gigabitethernet0/1
Switch(conf-if)# switchport backup interface gigabitethernet0/2 preemption mode forced
Switch(conf-if)# switchport backup interface gigabitethernet0/2 preemption delay 50
Switch(conf-if)# end
Switch# show interface switchport backup detail
Active Interface Backup Interface State
------------------------------------------------------------------------
GigabitEthernet0/21 GigabitEthernet0/2 Active Up/Backup Standby
Interface Pair : Gi0/1, Gi0/2
Preemption Mode : forced
Preemption Delay : 50 seconds
Bandwidth : 100000 Kbit (Gi0/1), 100000 Kbit (Gi0/2)
Mac Address Move Update Vlan : auto

Configuring VLAN Load Balancing on Flex Links

Beginning in privileged EXEC mode, follow these steps to configure VLAN load balancing on Flex
Links:
Command
Step 1 configure terminal
Step 2
interface interface-id
Step 3 no shutdown
Step 4 switchport backup interface interface-id prefer vlan
vlan-range
Step 5 end
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
18-10
Chapter 18 Configuring Flex Links and the MAC Address-Table Move Update Feature
Purpose
Configure the time delay until a port preempts another
port.
Note Setting a delay time only works with forced and
bandwidth modes.
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.
Enable the port, if necessary. By default, UNIs and ENIs
are disabled, and NNIs are enabled.
Configure a physical Layer 2 interface (or port channel)
as part of a Flex Links pair with the interface, and specify
the VLANs carried on the interface. The VLAN ID range
is 1 to 4094.
Return to privileged EXEC mode.
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