Reference Guide

Bidirectional Forwarding Detection (BFD) | 309
Defaults
See Parameters
Command Modes
INTERFACE
Command
History
Usage
Information
This command provides the flexibility to fine tune the timer values based on individual interface needs
when ISIS BFD is configured in CONFIGURATION mode. Any timer values specified with this
command override timers set using the command bfd all-neighbors. Using the no form of this command
will not disable BFD if BFD is configured in CONFIGURATION mode.
Use the keyword disable to disable BFD on a specific interface while BFD is configured in from
CONFIGURATION mode.
neighbor bfd
c e
Explicitly enable a BFD session with a BGP neighbor or a BGP peer group.
Syntax
neighbor {ip-address | peer-group-name} bfd
Parameters
Defaults
None
Command Modes
ROUTER BGP
Command
History
min_rx milliseconds
Enter this keyword to specify the minimum rate at which the local system
would like to receive control packets from the remote system.
Range:50-100
Default:100
multiplier value
Enter this keyword to specify the number of packets that must be missed in
order to declare a session down.
Range:3-50
Default:3
role [active | passive]
Enter the role that the local system assumes:
• Active—The active system initiates the BFD session. Both systems can
be active for the same session.
• Passive—The passive system does not initiate a session. It only responds
to a request for session initialization from the active system.
Default: Active
Version 8.2.1.0 Introduced on E-Series ExaScale
Version 7.5.1.0 Introduced on E-Series
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 8.4.2.5 Introduced on the C-Series and E-Series TeraScale.
Version 8.3.8.0 Introduced on the S4810.
Version 8.4.1.3 Introduced on the E-Series ExaScale.