Which cisco NX-OS feature can be used to build highly scalable layer 2 multipath networks without utilizing the spanning tree protocol?

Which cisco NX-OS feature can be used to build highly scalable layer 2 multipath networks without utilizing the spanning tree protocol?
A . OTV
B . FabricPath
C . vPC
D . MST

View Answer

Answer: B

Explanation:

“Cisco FabricPath brings routing techniques from Layer 3 to solve Layer 2 loop problems”

Layer 2 loop problems are what STP was designed to solve and the mentioned routing techniques are done by IS-IS (page 404):

“Cisco FabricPath uses extensions to the Intermediate System-to-Intermediate System (IS-IS) protocol to exchange unicast and multicast location and reachability information and to forward traffic in the network using Cisco FabricPath headers. (IS-IS forms the underlay network for the FabricPath and enables the underlay fabric to be a nonblocking Layer 3-routed network with ECMP forwarding).”