I have 2 dlsw router at head quater office, named dlswA and dlswB.
From branches router, dlswA is a primary peer and dlswB is a backup peer.
Both dlswA and B have 2 fast ethernet interfaces.
The current configuration of dlswA and dlswB are 1 port as IP port and other port as sna/bridge port.
With this configuration the problem is when SNA port at dlswA problem, then dlsw circuit will have the problem, because dlsw peer from branches still connected to dlswA.
if I configure 2 fast ethernet port become a port channel. And configure IP and bridge group at port channel interface (IP and SNA at the same interfaces), so when the port channel is down, then branches will connect to dlswB as a backup peer
Are the port channel configuration will solve the problem ? How about the stability of this configuration?
i was discussing with some people here and i guess if it works for netbios it will work for sna aswell. At the end it is not different from
the case where the ip traffic and the bridged
traffic come and go over the same interface.
We have customers doing that for a long time.
Your solution with the port channel should work fine for the case where you use dlsw with bridge groups.
And just to be sure that my understanding is correct, in your case the two ports of the port channel on the switch are in the same vlan. I guess otherwise the channel would not form anyway.