Cisco mesh networking: In a Cisco wireless mesh, which protocol lets multiple access points form a mesh with redundant multi-hop paths between nodes?
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ALWAPP
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BAWPP
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CSTP
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DIEEE
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ERPL
Answer
Correct Answer: AWPP
Explanation
Introduction / Context:Mesh WLANs provide wireless backhaul between access points (APs), maintaining connectivity even if some links fail. Cisco mesh uses a proprietary path selection protocol tuned for RF conditions.
Given Data / Assumptions:
- Technology: Cisco Aironet/Catalyst mesh networks.
- Goal: Form a resilient mesh with multiple redundant links between AP nodes.
Concept / Approach:Cisco uses AWPP (Adaptive Wireless Path Protocol) to dynamically choose best paths in a mesh based on link quality and other metrics. This is distinct from control/management tunnels or generic Layer 2 loop prevention.
Step-by-Step Solution:
Identify role: multi-hop, adaptive path selection in a Cisco mesh.Match to AWPP, Cisco’s purpose-built mesh protocol.Eliminate protocols that do not provide RF mesh path selection.Verification / Alternative check:Cisco mesh design guides explicitly reference AWPP as the mesh routing/path selection mechanism.
Why Other Options Are Wrong:
- LWAPP: Control/management tunneling protocol, not mesh path selection.
- STP: Layer 2 loop prevention for Ethernet, not wireless mesh routing.
- IEEE: Not a protocol—standards body.
- RPL: An IoT routing protocol, not Cisco’s enterprise Wi-Fi mesh method.
Common Pitfalls:Assuming STP applies to RF backhaul; confusing control protocols (LWAPP/CAPWAP) with mesh routing.
Final Answer:AWPP