BFD features

BGP, OSPFv2, OSPFv3, PIM, static routes, and VRRP are clients of BFD.

Supported:

• BFD v1

• Asynchronous mode + echo

• IPv6 (8400 switches only)

• Asynchronous mode on IPv6 in IPv6 tunnel interfaces (8400 switches only)

• Single hop

• IPv4

• RoP, SVI, and LAG interfaces

• VSX synchronisation. For more information, see the Virtual Switching Extension (VSX) Guide for your switch and software version.

Not supported:

• MIB support

• IPv6 (832x switches only)

• Demand mode

• Micro-BFD

• Authentication

• Echo function on tunnel interfaces (832x switches only)

• Asynchronous mode on tunnel interfaces (832x switches only)

• Multi-hop configurations. BFD works only for directly connected neighbors. BFD neighbors must be no more than one IP hop away.

• Loopback, passive, and virtual link interfaces