Users 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 flexibility to fine-tune the timer values based on individual
interface needs when you configure ipv6 ospf BFD in CONFIGURATION mode. Any
timer values specified 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
configure BFD in CONFIGURATION mode.
To disable BFD on a specific interface while you configure 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.
Bidirectional Forwarding Detection (BFD) 427