This is a repost of my question in R&S.
Cisco's DCI Design and Deployment Guide Release 2.0 describes an implementation where SP(s) provide a redundant VPLS solution with n-PE, where PWs terminate on a VSS pair at each cust premise. To prevent L2 loop, Cisco recommends implementing EEM scripts that track the port channel connected to primary nPE, and react by bringing up secondary link when primary fails, as well as recovery script when port channel returns to service. My read on all of this is that this should be possible using EEM version 3.2 on a 3750 platform as well. Does anyone have an opinion on this as to whether it can really be done, and would be an acceptable solution?
