Administrator Guide

Version Description
9.8(0.0P2) Introduced on the S3048-ON.
9.2.0.0 Introduced on the Z9000, S4820T, and S4810.
Usage Information
This command provides the exibility to ne-tune the timer values based on individual interface needs when you
congure ipv6 ospf BFD in CONFIGURATION mode. Any timer values specied with this command overrides
timers set using the bfd all-neighbors command. Using the no form of this command does not disable BFD
if you congure BFD in CONFIGURATION mode.
To disable BFD on a specic interface while you congure BFD in CONFIGURATION mode, use the keyword
disable.
isis bfd all-neighbors
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}]]
To remove all BFD sessions with IS-IS neighbors discovered on this interface, use the no isis bfd all-
neighbors [disable | [interval interval min_rx min_rx multiplier value role
{active | passive}]] command.
Parameters
disable (OPTIONAL) Enter the keyword disable to disable BFD on this interface.
interval milliseconds (OPTIONAL) Enter the keywords interval to specify non-default BFD session
parameters beginning with the transmission interval. The range is from 50 to 1000. The
default is 200.
min_rx milliseconds Enter the keywords min_rx to specify the minimum rate at which the local system would
like to receive control packets from the remote system. The range is from 50 to 1000. The
default is 200.
multiplier value Enter the keywords multiplier to specify the number of packets that must be missed
in order to declare a session down. The range is from 3 to 50. The default is 3.
role [active |
passive]
Enter the role that the local system assumes:
• Active — active system initiates the BFD session. Both systems can be active for
the same session.
• Passive — passive system does not initiate a session. It only responds to a request
for session initialization from the active system.
The default is Active.
Defaults See Parameters.
Command Modes INTERFACE
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Bidirectional Forwarding Detection (BFD) 341