Users Guide
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 100.
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 100.
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 — 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.
The default is Active.
Defaults See Parameters
Command Modes INTERFACE
Command History
This guide is platform-specic. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.0.0.0 Introduced on Z9000.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on S4810.
8.2.1.0 Introduced on the E-Series ExaScale.
7.5.1.0 Introduced on the E-Series.
Usage Information
This command provides the exibility to ne-tune the timer values based on individual interface needs when
ISIS BFD is congured in CONFIGURATION mode. Any timer values specied with this command overrides
timers set using the bfd all-neighbors command. Using the no form of this command does not
disable BFD if BFD is congured in CONFIGURATION mode.
To disable BFD on a specic interface while BFD is congured in CONFIGURATION mode, use the keyword
disable.
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Bidirectional Forwarding Detection (BFD)