Reference Guide
662 | Interfaces
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On the E-Series TeraScale, you can add up to 16 interfaces to a Port Channel; E-Series
ExaScale can have up to 64. You can have eight interfaces per Port Channel on the C-Series
and S-Series. The interfaces can be located on different line cards but must be the same
physical type and speed (for example, all 1-Gigabit Ethernet interfaces). However, you can
combine 100/1000 interfaces and GE interfaces in the same 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
c e s
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)#
description Assign a descriptive text string to the interface.
interface port-channel Create a Port Channel interface.
shutdown Disable/Enable the port channel.
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 8.3.19.0 Introduced on S4820T
Version 8.3.7.0 Introduced on S4810
Version 8.1.1.0 Introduced on E-Series ExaScale
Version 7.6.1.0 Introduced for C-Series, E-Series, and S-Series