Set the MTU Value of the Port Channel

If you change the MTU value of the port channel, the new value is applied on all of the ports in the bundle. All of the port channel member ports are bundled in switch A.

1. Create the port channel (1 in this example).

   SEFOS# configure terminal
   SEFOS(config)# interface port-channel 1
   SEFOS(config-if)# shutdown

2. Set the MTU value (1000 in this example).

   SEFOS(config-if)# mtu 1000
   SEFOS(config-if)# no shutdown
   SEFOS(config-if)# exit

3. Create the physical interface (0/2 in this example).

   SEFOS(config)# interface extreme-ethernet 0/2
   SEFOS(config-if)# shutdown

4. Set the MTU value for the interface.

   SEFOS(config-if)# mtu 1000
   SEFOS(config-if)# no shutdown
   SEFOS(config-if)# exit

5. Review the etherchannel information.

   SEFOS# show etherchannel 1 detail
    
   Port-channel Module Admin Status is enabled
   Port-channel Module Oper Status is enabled
   Port-channel System Identifier is  00:01:02:03:04:01
    
   LACP System Priority: 32768
    
                    Channel Group Listing
                    ---------------------
   Group: 1
   ----------
   Protocol :LACP
    
                    Ports in the Group
                    ------------------
   Port : Ex0/1
   -------------
   Port State = Up in Bundle
   Channel Group : 1
   Mode : Active
   Pseudo port-channel = Po1
   LACP port-priority  = 128
   LACP Wait-time  = 2 secs
   LACP Port Identifier = 1
   LACP Activity : Active
   LACP Timeout : Long
    
   Aggregation State : Aggregation, Sync, Collecting, Distributing, Defaulted
    
   Port : Ex0/2
   -------------
   Port State = Up in Bundle
   Channel Group : 1
   Mode : Active
   Pseudo port-channel = Po1
   LACP port-priority  = 128
   LACP Wait-time  = 2 secs
   LACP Port Identifier = 2
   LACP Activity : Active
   LACP Timeout : Long
    
   Aggregation State : Aggregation, Sync, Collecting, Distributing, Defaulted
                    LACP Port   Admin  Oper   Port    Port
   Port     State   Priority    Key    Key    Number  State
   ---------------------------------------------------------
   Ex0/1    Bundle  128         1      1      0x1     0xbe
   Ex0/2    Bundle  128         1      1      0x2     0xbe
    
   Port-channel : Po1
   -------------------
   Number of Ports = 2
   HotStandBy port = null
   Port state = Port-channel Ag-Inuse
   Protocol = LACP
   MAC selection = Dynamic