Are gigastack links treated like any other normal link? Background: I have 3 3550's that will be gigastacked together. The gigastack will be from (switch A -> Switch B, Switch B -> Switch C, Switch C -> Switch A). Switch A will also have a connection back to our "Core A" switch. Switch B will also have a connection back to our "Core B" switch. Across those 3 3550's I will have several VLANs running. My questions are as follows 1.) Will I need to setup a trunk across the 3550 gigastack links? Is the giagstack link a normal "link" or does it create some type of special matrix between the switches (i.e. extension of the switches backplan). 2.) How does spanning tree come into play on this? For example if we were using only one switch one of the links to the core will be blocked by spanning tree. Should I expect anything different in a gigastack configuration? Thanks Amy.
