Using the topology above: ALS2 is actually a 2960-s (Gig ports). DLS2 is a 3550. 802.1q configured on all links.Gi1/0/9 is selected as the RP but I don't understand why. DLS2 is the Root Bridge and I was expecting Gi1/0/7 or 8 to be RP.Here is my sho...