We are about to setup a VSS system for one of our customers. My question is regarding the enhancment to PAgP that VSS uses to discover Dual-Active scenarios.
The customer will connect cisco 3750's with Multi Chassis Etherchannel to the VSS, does the 3750 support PAgP+ out of the box ? If not what IOS do we need to get this to work or is this PAgP addition transparent to the 3750's somehow ?
Other option is to use Bidirectional Forwarding Detection, what is recommended ?
// BR Daniel