Most township applications are reachable by IP with DNS-based geo steering and do not need shared L2 adjacency between halls. Which DCI preference follows?
Select an answer to reveal the explanation.
Short Explanation
If apps are happy with IP reachability and DNS geo, do not gift them a stretched flood domain. Prefer L3 DCI when L2 adjacency is not on the requirement list.
Full Explanation
When applications do not require Layer-2 adjacency and can use IP reachability with DNS or similar steering, Layer-3 DCI is the preferred interconnect stretch model. It avoids unnecessary flood-domain extension and reduces classic L2 operational risk across the WAN or metro path. Stretch L2 only when a concrete adjacency requirement exists.