Configuring Port-Channel Interfaces
Configure Port-Channel Interfaces
Configure the LACP Port Priority
Configure the LACP System Priority
Configure Port Channel Load Balancing
Configure the LACP System Identifier
Configure the LACP Port Identifier
Set the MTU Value of the Port Channel
You can set the MTU value for an individual port or a set of ports by using the procedure in this section. In the following procedure, ports 0/1, 0/2, and 0/3 are part of the LA. When the MTU of a port in a bundle is different than the MTU for the port channel, the port will not be brought up in the bundle. See LA Topology Example for the topology referenced in this procedure.
SEFOS# show interface mtu Ex0/1 MTU size is 1500 Ex0/2 MTU size is 1500 Ex0/3 MTU size is 1500 Ex0/4 MTU size is 1500 Ex0/5 MTU size is 1500 Ex0/6 MTU size is 1500 Ex0/7 MTU size is 1500 Ex0/8 MTU size is 1500 Ex0/9 MTU size is 1500 Ex0/10 MTU size is 1500 Ex0/11 MTU size is 1500 Ex0/12 MTU size is 1500 Ex0/13 MTU size is 1500 Ex0/14 MTU size is 1500 Ex0/15 MTU size is 1500 Ex0/16 MTU size is 1500 Ex0/17 MTU size is 1500 Ex0/18 MTU size is 1500 Ex0/19 MTU size is 1500 Ex0/20 MTU size is 1500 Ex0/21 MTU size is 1500 Ex0/22 MTU size is 1500 Ex0/23 MTU size is 1500 Ex0/24 MTU size is 1500 po1 MTU size is 1500 vlan1 MTU size is 1500
SEFOS# configure terminal SEFOS(config)# interface extreme-ethernet 0/1 SEFOS(config-if)# shutdown
SEFOS(config-if)# mtu 1000 SEFOS(config-if)# no shutdown SEFOS(config-if)# end
The output has been truncated for readability.
SEFOS# show etherchannel detail ... Ports in the Group ------------------ Port : Ex0/1 ------------- Port State = Down, Not in Bundle Channel Group : 1 Mode : Active ...
Note - After you configure the MTU value on port 0/1 to 1000, note that because the MTU value on port 0/1 is different than the MTU value of the port channel interface, the extreme-ethernet port, 0/1, in switch A will be brought down and out of the bundle.