200-155 · Question #203
What is one benefit of running Cisco FabricPath as compared to STP?
The correct answer is D. allows forwarding of frames along all available equal cost paths. Cisco FabricPath is a Layer 2 multipathing technology designed to overcome the limitations of STP by enabling the utilization of all available equal-cost paths in a network.
Question
What is one benefit of running Cisco FabricPath as compared to STP?
Options
- Auses different control protocols for unicast forwarding and multicast forwarding
- Bleams all MAC addresses in the network unconditionally
- Cblocks redundant links
- Dallows forwarding of frames along all available equal cost paths
How the community answered
(62 responses)- A2% (1)
- B2% (1)
- C3% (2)
- D94% (58)
Why each option
Cisco FabricPath is a Layer 2 multipathing technology designed to overcome the limitations of STP by enabling the utilization of all available equal-cost paths in a network.
FabricPath uses a single control plane (IS-IS for FabricPath) for both unicast and multicast forwarding in the data plane.
FabricPath learns MAC addresses only for directly connected end-hosts, while its core switches use IS-IS to route based on hierarchical MAC addresses (switch IDs), not learning all end-host MACs unconditionally across the entire fabric.
This describes the behavior of Spanning Tree Protocol (STP), which blocks redundant links to prevent Layer 2 loops; FabricPath actively uses redundant links.
Cisco FabricPath overcomes the limitations of Spanning Tree Protocol by allowing data frames to be forwarded along all available equal-cost paths in the Layer 2 network, thereby improving bandwidth utilization and network resilience. STP, by contrast, blocks redundant links to prevent loops.
Concept tested: Cisco FabricPath benefits over STP
Source: https://www.cisco.com/c/en/us/products/collateral/switches/nexus-7000-series-switches/white_paper_c11-686948.html
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