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Dell POWEREDGE M1000E User Manual

Page 538

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21-10

Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide

OL-13270-03

Chapter 21 Configuring Flex Links and the MAC Address-Table Move Update Feature

Configuring Flex Links and MAC Address-Table Move Update

To remove a preemption scheme, use the no switchport backup interface interface-id preemption
mode
interface configuration command. To reset the delay time to the default, use the no switchport
backup interface
interface-id preemption delay interface configuration command.

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 gigabitethernet1/0/1

Switch(conf-if)#switchport backup interface gigabitethernet1/0/2 preemption mode forced

Switch(conf-if)#switchport backup interface gigabitethernet1/0/2 preemption delay 50

Switch(conf-if)# end

Switch# show interface switchport backup detail

Active Interface Backup Interface State

------------------------------------------------------------------------

GigabitEthernet1/0/1 GigabitEthernet1/0/2 Active Up/Backup Standby

Interface Pair : Gi1/0/1, Gi1/0/2

Preemption Mode : forced

Preemption Delay : 50 seconds

Bandwidth : 100000 Kbit (Gi1/0/1), 100000 Kbit (Gi1/0/2)

Mac Address Move Update Vlan : auto

Step 4

switchport backup interface interface-id preemption
mode
[forced | bandwidth | off]

Configure a preemption mechanism and delay for a Flex
Link interface pair. You can configure the preemption as:

Forced—the active interface always preempts the
backup.

Bandwidth—the interface with the higher bandwidth
always acts as the active interface.

Off—no preemption happens from active to backup.

Step 5

switchport backup interface interface-id preemption
delay
delay-time

Configure the time delay until a port preempts another
port.

Note

Setting a delay time only works with forced and
bandwidth modes.

Step 6

end

Return to privileged EXEC mode.

Step 7

show interface [interface-id] switchport backup

Verify the configuration.

Step 8

copy running-config startup config

(Optional) Save your entries in the switch startup
configuration file.

Command

Purpose