What is the primary purpose of TLOC extensions on a WAN Edge router?
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Correct answer: creates hardware-level transport redundancy at the local site.
Why this is the answer
TLOC extensions provide hardware-level transport redundancy at the local site by allowing a single WAN Edge router to utilize the TLOCs of a directly connected peer WAN Edge router. This means if one WAN Edge router's direct WAN links fail, it can still forward traffic through the peer's operational WAN links, maintaining connectivity without requiring a complete failover to a different router. This is distinct from transporting control traffic (which is handled by OMP and DTLS/TLS tunnels to vSmart and vBond, respectively) or creating IPsec tunnels to vBond (which is for initial authentication and orchestration). While redundancy is a goal, TLOC extensions specifically address local transport redundancy between peer WAN Edge devices.
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