Reference Guide

Bidirectional Forwarding Detection (BFD) | 207
Syntax
neighbor
{ip-address | peer-group-name} bfd
Parameters
Defaults
None
Command Modes
ROUTER BGP
Command
History
Usage
Information
When you enable a BFD session with a specified BGP neighbor or peer group using the
neighbor bfd command, the default BFD session parameters are used (interval: 1000
milliseconds, min_rx: 1000 milliseconds, multiplier: 3 packets, and role: active) if no
parameters have been specified with the neighbor bfd command.
When you explicitly enable a BGP neighbor for a BFD session with the neighbor bfd
command:
• The neighbor does not inherit the global BFD enable values configured with the neighbor
bfd command or configured for the peer group to which the neighbor belongs.
• The neighbor only inherits the global timer values configured with the neighbor bfd
command: interval, min_rx, and multiplier.
Related
Commands
neighbor bfd disable
z
Explicitly disable a BFD session with a BGP neighbor or a BGP peer group.
Syntax
neighbor
{ip-address | peer-group-name} bfd disable
Parameters
Defaults
None
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.
Version 9.0.2.0 Introduced on the S6000
Version 9.0.0.0 Introduced on the Z9000.
Version 8.3.8.0 Introduced on the S4810.
neighbor bfd Enable BFD sessions with all neighbors discovered by Layer 3
protocols.
neighbor bfd disable Explicitly disable a BFD session with a BGP neighbor or a BGP peer
group.
S6000
ip-address
Enter the IP address of the BGP neighbor that you want to explicitly
disable 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 disable for
BFD sessions.