Cisco mesh networking: In a Cisco wireless mesh, which protocol lets multiple access points form a mesh with redundant multi-hop paths between nodes?

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:

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