I have a 3550's in different buildings with ~2km of multimode fiber between them. Until we upgrade to singlemode, we want to use etherchannel to get us to at least 400mbps.
The link works great, but can't seem to get more than 100mbps over the link. I will disconnect what appears to be the active channel and one of the other ones picks up no problem.
Version:Cisco Internetwork Operating System Software IOS (tm) C3550 Software (C3550-I9Q3L2-M), Version 12.1(11)EA1, RELEASE SOFTWARE (fc1)
Each switch is configured the same and here is a config snipit:
no service pad service timestamps debug uptime service timestamps log uptime no service password-encryption ! ip subnet-zero ! spanning-tree extend system-id ! interface Port-channel1 description EtherChannel SM-3550-FX to GH-3550-FX no ip address ! interface FastEthernet0/1 description EtherChannel 1 Port 1 switchport trunk encapsulation dot1q no ip address channel-group 1 mode desirable ! interface FastEthernet0/2 description EtherChannel 1 Port 2 switchport trunk encapsulation dot1q no ip address channel-group 1 mode desirable
interface FastEthernet0/3 description EtherChannel 1 Port 3 switchport trunk encapsulation dot1q no ip address channel-group 1 mode desirable ! interface FastEthernet0/4 description EtherChannel 1 Port 4 switchport trunk encapsulation dot1q no ip address channel-group 1 mode desirable
Is there something silly and simple I am missing? Thanks for any help.