Reference Guide

neighbor bfd
Explicitly enable a BFD session with a BGP neighbor or a BGP peer group.
S5000
Syntax
neighbor {ip-address | peer-group-name} bfd
Parameters
ip-address Enter the IP address of the BGP neighbor that you want to
explicitly enable for BFD sessions in dotted decimal format
(A.B.C.D).
peer-group-
name
Enter the name of the peer group that you want to explicitly
enable for BFD sessions.
Defaults none
Command
Modes
ROUTER BGP
Command
History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
When you enable a BFD session with a specified BGP neighbor or peer group using
the bfd neighbor command, the default BFD session parameters are used
(interval:
100 milliseconds, min_rx: 100 milliseconds, multiplier: 3 packets, and
role: active) if you have not specified parameters with the bfd all-neighbors
command.
When you explicitly enable a BGP neighbor for a BFD session with the bfd
neighbor command:
• The neighbor does not inherit the global BFD enable values configured with the
bfd all-neighbors command or configured for the peer group to which the
neighbor belongs.
• The neighbor only inherits the global timer values configured with the bfd
all-neighbors
command: interval, min_rx, and multiplier.
Related
Commands
bfd all-neighbors – enables BFD sessions with all neighbors discovered by Layer 3
protocols.
neighbor bfd disable – explicitly disables a BFD session with a BGP neighbor or a
BGP peer group.
show bfd neighbors – displays the BFD neighbor information on all interfaces or a
specified interface.
260
Bidirectional Forwarding Detection (BFD)