Correct Answer: D,E,F
Explanation/Reference:
Explanation:
VSS operates on a unified control plane with a distributed forwarding architecture in which the active supervisor (or switch) is responsible for actively participating with the rest of the network and for managing and maintaining control plane information. VSS actually removes the need for a next-hop redundancy protocol like HSRP or VRRP. These first-hop redundancy protocols are usually heavily tied to a fast- converging routing protocol like EIGRP, and still require that each device maintain its own control plane.
The standby chassis monitors the active chassis using the VSL. If it detects failure, the standby chassis initiates a switchover and takes on the active role. When the failed chassis recovers, it takes on the standby role.
Reference. http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/15- 1SY/config_guide/ sup2T/15_1_sy_swcg_2T/virtual_switching_systems.pdf