Service Manual

Defaults none
Command Modes ROUTER BGP
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
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: 200 milliseconds, min_rx: 200 milliseconds,
multiplier: 3 packets, and role: active) if you have not specified parameters with the bfd neighbor 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 neighbor command or
configured for the peer group to which the neighbor belongs.
• The neighbor only inherits the global timer values configured with the bfd neighbor command: interval,
min_rx, and multiplier.
Related Commands
bfd neighbor — enables BFD sessions with all neighbors the Layer 3 protocols discover.
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.
neighbor bfd disable
Explicitly disable a BFD session with a BGP neighbor or a BGP peer group.
Syntax
neighbor {ip-address | peer-group-name} bfd disable
Parameters
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.
Defaults none
Command Modes ROUTER BGP
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
When you explicitly disable a BGP neighbor for a BFD session with the neighbor bfd disable command:
• The neighbor does not inherit the global BFD disable values configured with the bfd all-neighbor
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-neighbor command:
interval, min_rx, and multiplier.
Bidirectional Forwarding Detection (BFD) 271