We have a Cisco WS-C2960X-24PS configured with 4 SFP modules running 2 separate fibre ring networks 1 with 10 comnet switches, the second with 5 comnet switches. We use RSTP to control the rings to ensure port blocking.
All worked fine until the second ring was introduced onto the switch, now we have the first ring failing to block a port upon a topology change.
I am wondering as my Cisco knowledge is 10 years out of date, are the company that setup the Cisco, correct in saying that the Cisco will block both rings using RSTP.
Many Thanks
