Reference Guide

Bidirectional Forwarding Detection (BFD) | 301

Bidirectional Forwarding Detection (BFD)

Overview

Bidirectional Forwarding Detection (BFD) is a detection protocol that provides fast forwarding path

failure detection. The FTOS implementation is based on the standards specified in the IETF Draft

draft-ietf-bfd-base-03 and supports BFD on all Layer 3 physical interfaces including VLAN interfaces

and port-channels.

BFD is supported on the C-Series and E-Series, where indicated by the

c and e characters under

command headings.

BFD is supported on E-Series ExaScale e

with FTOS 8.2.1.0 and later.

Commands

• bfd all-neighbors

• bfd disable

• bfd enable (Configuration)

• bfd enable (Interface)

• bfd interval

• bfd neighbor

• bfd protocol-liveness

• clear bfd counters

• debug bfd

• ip route bfd

• isis bfd all-neighbors

• neighbor bfd

• neighbor bfd disable

• show bfd counters

• show bfd neighbors

• vrrp bfd