2-380
Catalyst 6500 Series Switch Command Reference—Release7.6
78-15328-01
Chapter2 Catalyst 6500 Series Switch and ROM Monitor Commands
set port channel
Defaults The default is EtherChannel is set to auto and silent on all module ports. The defaults for frame
distribution are ip and both.
Command Types Switch command.
Command Modes Privileged.
Usage Guidelines This command is not supported by the NAM.
This command is not supported by non-EtherChannel-capable module s.
The set port channel all distribution session command is supported on systems configured with the
Supervisor Engine 2 with Layer 3 Switching Engine II (PFC2) only.
Make sure that all ports in the channel are configured with the same port speed, duplex mode, and so
forth. For more information on EtherChannel, refer to th e C atalys t 6500 Series Switch Software
Configuration Guide.
With the on mode, a usa ble E therCh an ne l exists only w hen a por t gr oup in on mode is connected to
another port group in on mode.
If you are running QoS, make sure that bundled ports are all of the same trust types and have similar
queueing and drop capabilities.
Disable the port security feature on the channeled ports (see the set port security command). If you
enable port security for a channeled port, the port shuts down when it receives packets with source
addresses that do not match the secure address of the port.
You can configure up to eight ports on the same switch in each administrative group.
When you assign ports to an existing administrative group, the original ports associated with the
administrative group will move to a new automatically picked administrative group. You cannot add
ports to the same administrative group.
If you do not enter an admin_group value, a new administrative group is created with the admin_group
value selected automatically. The next available administrative group is automatically selected.
If you do not enter the channel mode, the channel mode of the ports addressed are not modified.
The silent | non-silent parameters only apply if desirable or auto modes are entered.
If you do not specify silent or non-silent, the current setting is not affected.
Note With software releases 6.2(1) and earlier, the 6- and 9-slot Catalyst 6500 seri es swi tch es supp ort a
maximum of 128 EtherChannels.
With software releases 6.2(2) and later, due to the port ID handling by the spanning tree feature, the
maximum supported number of EtherChannels is 126 for a 6- or 9-slot chassis and 63 for a 13-slot
chassis. Note that the 13-slot chassis was first supported in software release 6.2(2).