Reference Guide

296 | Bidirectional Forwarding Detection (BFD)
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Related
Commands
isis bfd all-neighbors
e
Enable BFD on all IS-IS neighbors discovered on an interface.
Syntax
isis bfd all-neighbors
[disable | [interval interval min_rx min_rx multiplier value role {active |
passive}]]
Parameters
Defaults
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.
bfd all-neighbors Enable BFD sessions with all neighbors discovered by Layer 3
protocols IS-IS, OSPF or BFP on router interfaces.
neighbor bfd disable Explicitly disable a BFD session with a BFP neighbor or a BFP peer
group.
show bfd neighbors Display BFD neighbor information on all interfaces or a specified
interface.
disable
(OPTIONAL) Enter the keyword disable to disable BFD on this
interface.
interval milliseconds
(OPTIONAL) Enter this keyword to specify non-default BFD
session parameters beginning with the transmission interval.
Range: 50 to 1000
Default: 100
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 to 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 to 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