I was configuring link aggregation between a Cisco3750 and Cisco SG200 and the switched network went down just a few minutes after the port channel came on.
I rebooted the SG200 and all hosts came back up for a minute before I lost them again.
The etherchannel was between two trunking ports.
I never set link aggregation on the SG200, could that be the reason?
All machines are connected to the SG200.
The 3750 is only being used as a layer 3 device for inter vlan traffic.
Please help me figure out what happened before I try this again.
