Which statement about Cisco FabricPath is true?

Which statement about Cisco FabricPath is true?
A . It is the best solution for interconnecting multiple data centers.
B . It optimizes STP throughout the Layer 2 network.
C . It is a simplified extension of Layer 3 networks across a single data center.
D . The Cisco FabricPath domain appears as a single STP bridge, where each edge port uses the same MAC address.

View Answer

Answer: D

Explanation:

To have a loop-free topology for the CE/FabricPath hybrid network, the FabricPath network automatically displays as a single bridge to all connected CE devices. The STP domains do not cross into the FabricPath network. If multiple STP domains are defined, BPDUs and topology change notifications (TCNs) are localized to the domain. If a connected STP domain is multihomed to the FabricPath domain, a TCN must be able to reach to all devices in the STP domain through the FabricPath domain. As a result, the TCN is sent to the FabricPath domain through the IS-IS protocol data unit (PDU) by default.

http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/mkt_ops_guides/513_n1_1/n5k_ops_fabricpath.html