A leaf reuses one undocumented loopback for underlay router-id, VTEP source, and several overlapping services. What addressing hygiene best practice should the fabric standard require?
Select an answer to reveal the explanation.
Short Explanation
One mystery loopback doing five jobs is like one unlabeled master key on the janitor’s ring—fine until something breaks at 2 a.m. Give VTEP and underlay roles clear, documented addresses.
Full Explanation
IP fabric operations rely on predictable loopback and VTEP addressing: stable VTEP sources must be advertised and documented distinctly from other roles when design requires it. Random per-reboot VTEPs, link-local-only VTEPs without underlay reachability, or colliding VTEPs with anycast gateways create troubleshooting and overlay failures.