An animal control HQ uses vManage to find sites with a degraded underlay path. Which operational signal commonly highlights that condition for a transport color?
Select an answer to reveal the explanation.
Short Explanation
When a color goes sick, BFD is usually the canary. vManage dashboards that show degraded or down BFD on a transport tell you the underlay path is unhappy. That’s the first place ops should look.
Full Explanation
Bidirectional Forwarding Detection sessions monitor liveliness of SD-WAN tunnels per transport color. Controller monitoring views that show degraded or down BFD are a primary operational indicator of underlay path problems. Spanning Tree BPDUs, LAN NetFlow absence, or service-VPN OSPF hello changes do not substitute for that underlay health signal.