Strict Bidirectional Forwarding Detection (BFD) Session Protection for Static Routes

If the Bidirectional Forwarding Detection (BFD) session is down, but BFD protected static route is still in the routing table after reboot, the BFD session is never established, because during reboot, the BFD session is in the INIT state, and the static route is brought up without considering BFD session state. This situation can cause traffic loss since the link to the gateway actually is down. This command turns down the static route during reboot if BFD session is in the INIT state. By default, this feature is disabled, which is consistent with other BFD clients.

Supported Platforms

Summit X450-G2, X460-G2, X670-G2, and ExtremeSwitching X440-G2, X465, X590, X620, X690, X870 series switches.

New CLI Commands

enable iproute {protection} bfd strict

disable iproute {protection} bfd strict

Changed CLI Commands

The following show command now shows the BFD strict session control status:

show iproute bfd