Suppose I have two Catalyst 6509 switches in VSS
configutatoin. I have one point-to-point circuit that comes into po
rt1/1/2 of the active chassis. What happens if the supervisor engine of the active chassis fails?
Will the stand-by chassis take over and somehow use the port of the failed chassis?
No, when the primary or secondary switch fails, none of the ports for that particular switch are useable, that is why for example if you are connecting your servers to a VSS set, you should always use 2 NICs from each server, one connects to one 6500 and the other connects to the other 6500. This way you have switch redundancy (VSS) and also NIC redundancy.
Also, if you are connecting your edge devices, you should uplink you edge device two different 6500 using EtherChannel.