interface configured and enabled in the Port Channel. If that first interface goes down, the PortChannel does not change its designated speed; you must disable and re-enable the PortChannel or change the order of the channel members configuration to change the designatedspeed. If the Port Channel contains a mix of interfaces with 100 Mb/s speed and 1000 Mb/sspeed, the software disables those interfaces whose speed does not match the speed of thefirst interface configured and enabled in the Port Channel. If that first interface goes down, thePort Channel does not change its designated speed; you must disable and re-enable the PortChannel or change the order of the channel members configuration to change the designatedspeed. For more information about Port Channels, refer to theFTOS Configuration Guide.RelatedCommandsdescription – assigns a descriptive text string to the interface.interface port-channel – creates a Port Channel interface.shutdown – disables/enables the port channel.groupGroup two LAGs in a supergroup (“fate-sharing group” or “failover group”).C-Series, E-Series, S-Series, Z-Series, S4810Syntax group group_number port-channel number port-channel numberTo remove an existing LAG supergroup, use the no group group_number command.Parametersgroup_number Enter an integer from 1 to 32 that uniquely identifies this LAG fate-sharing group.port-channelnumberEnter the keywords port-channel followed by an existing LAGnumber. Enter this keyword/variable combination twice, identifyingthe two LAGs to be paired.Defaults noneCommand Modes PORT-CHANNEL FAILOVER-GROUP (conf-po-failover-grp)Command History Version 8.3.11.1 Introduced on the Z9000.Version 8.3.7.0 Introduced on the S4810.Version 8.1.1.0 Introduced on the E-Series ExaScale.Version 7.6.1.0 Introduced on the C-Series, E-Series, and S-Series.RelatedCommandsport-channel failover-group – accesses PORT-CHANNEL FAILOVER-GROUP mode to configurea LAG failover group.show interfaces port-channel – displays information on configured Port Channel groups.754