I have a GIG Channel Port connecting two Cisco 2950's and 2 layer 2 ethernet switches that are connected to both 2950's for redundancy. STP insisted on using the port that the dumb switches were connected to as the root port. To counteract this, I made one 2950 the Root switch and the other the backup root port. Doing so moved the root port to the Gig channel. Also, prior to this, the channel was blocked by STP and it did not block the redundant connection to the switch. What is the proper way to ensure the bridge priority stays lowest on the port channel so that subsequent switch replacement in the two other switches does not throw off STP again? How can I make sure of the root port is on the Ethernet Channel?
Don
Don