Reference Guide

Defaults See Parameters
Command
Modes
ROUTER OSPF
ROUTER BGP
ROUTER ISIS
Command
History
Version 9.0(1.3) Introduced BFD for BGP on the S5000.
Usage
Information
All neighbors inherit the timer values configured with the bfd all-neighbors
command except in the following cases:
• Timer values configured with the isis bfd all-neighbors command in
INTERFACE mode override timer values configured with the bfd all-
neighbors command. Likewise, using the no bfd all-neighbors
command does not disable BFD on an interface if BFD is explicitly enabled
using the isis bfd all-neighbors command.
• Neighbors that have been explicitly enabled or disabled for a BFD session with
the bfd neighbor or neighbor bfd disable commands in ROUTER BGP
mode do not inherit the global BFD enable/ disable values configured with the
bfd all-neighbors command or configured for the peer group to which a
neighbor belongs. The neighbors inherit only the global timer values
(configured with the
bfd all-neighbors command).
Related
Commands
show bfd neighbors – displays BFD neighbor information on all interfaces or a
specified interface.
bfd neighbor – explicitly enables a BFD session with a BGP neighbor or a BGP
peer group.
neighbor bfd disable – explicitly disables a BFD session with a BGP neighbor or a
BGP peer group.
bfd enable (Configuration)
Enable BFD on all interfaces.
S5000
Syntax
bfd enable
Disable BFD using the no bfd enable command.
Defaults BFD is disabled by default.
Command
Modes
CONFIGURATION
Command
History
Version 9.0(1.3) Introduced on the S5000.
258
Bidirectional Forwarding Detection (BFD)