A parks department sees overlay brownouts that correlate with one transport color flapping BFD while vSmart control connections stay up. What is the most accurate first troubleshooting framing?
Select an answer to reveal the explanation.
Short Explanation
If BFD on one color is bouncing but the controllers still answer, you have a bad road, not a dead dispatch center. Split underlay transport problems from overlay control-plane problems before you reboot the world. Blaming LISP on a pure SD-WAN park site just sends the truck to the wrong warehouse.
Full Explanation
SD-WAN troubleshooting should distinguish underlay issues (transport connectivity, BFD to next hops, color reachability) from overlay control-plane issues (DTLS/TLS control connections, OMP to vSmart). Brownouts tied to one color’s BFD while controllers remain reachable point to underlay or per-TLOC data-plane degradation—validate TLOC state, tunnels, and AAR decisions next. Global OMP failure is unlikely if control connections are stable. SD-Access LISP is a different architecture and not the default frame for SD-WAN-only sites.