Reference Guide

460 | Interfaces
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• The Port Channel link MTU and IP MTU must be less than or equal to the link MTU and IP MTU
values configured on the channel members.
Example: If the members have a link MTU of 2100 and an IP MTU 2000, the Port Channel’s MTU
values cannot be higher than 2100 for link MTU or 2000 bytes for IP MTU.
When an interface is removed from a Port Channel with the no channel-member command syntax, the
interface reverts to its configuration prior to joining the Port Channel.
An interface can belong to only one Port Channel.
If the Port Channel contains a mix of interfaces with 100 Mb/s speed and 1000 Mb/s speed, the
software disables those interfaces whose speed does not match the speed of the first interface
configured and enabled in the Port Channel. If that first interface goes down, the Port Channel does not
change its designated speed; you must disable and re-enable the Port Channel or change the order of
the channel members configuration to change the designated speed. Refer to the FTOS Configuration
Guide for more information on Port Channels.
Related
Commands
group
s z
Group two LAGs in a supergroup (“fate-sharing group” or “failover group”).
Syntax
group group_number port-channel number port-channel number
To remove an existing LAG supergroup, use the no group group_number command.
Parameters
Defaults
No default values or behavior
Command Modes
PORT-CHANNEL FAILOVER-GROUP (conf-po-failover-grp)
Command History
Example
FTOS(conf)#port-channel failover-group
FTOS(conf-po-failover-grp)#group 1 port-channel 1 port-channel 2
FTOS(conf-po-failover-grp)#
Related
Commands
description Assign a descriptive text string to the interface.
interface port-channel Create a Port Channel interface.
shutdown Disable/Enable the port channel.
S6000
group_number
Enter an integer from 1 to 32 that will uniquely identify this LAG
fate-sharing group.
port-channel number Enter the keyword port-channel followed by an existing LAG number.
Enter this keyword/variable combination twice, identifying the two LAGs to
be paired.
Version 9.0.2.0 Introduced on the S6000.
Version 8.3.11.1 Introduced on Z9000
Version
8.3.7.0
Introduced on the S4810.
port-channel failover-group Access the PORT-CHANNEL FAILOVER-GROUP mode to configure a
LAG failover group.
show interfaces port-channel Display information on configured Port Channel groups.