Dell Force10 S4810P, Reference Manual

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Command History
Version 9.0.0.0 Introduced on Z9000.
Version 8.3.12.0 Introduced on S4810.
Version 8.2.1.0 Introduced on the E-Series ExaScale.
Version 7.5.1.0 Introduced on the E-Series.
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
bfd all-neighbors
command. Using the
no
form of this command does 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
CONFIGURATION mode.
neighbor bfd
Explicitly enable a BFD session with a BGP neighbor or a BGP peer group.
E-Series ExaScale, Z-Series, S4810
Syntax neighbor { ip-address | peer-group-name } bfd
Parameters
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.
Defaults none
Command Modes ROUTER BGP
Command History
Version 9.0.0.0 Introduced on the Z9000.
Version 8.3.8.0 Introduced on the S4810.
Version 8.4.1.3 Introduced on the E-Series ExaScale.
Usage
Information
When you enable a BFD session with a specified BGP neighbor or peer group using the
bfd
neighbor
command, the default BFD session parameters are used (interval: 100
milliseconds, min_rx: 100 milliseconds, multiplier: 3 packets, and role: active) if you have not
specified parameters with the
bfd neighbor
command.
When you explicitly enable a BGP neighbor for a BFD session with the
bfd neighbor
command:
• The neighbor does not inherit the global BFD enable values configured with the
bfd
neighbor
command or configured for the peer group to which the neighbor belongs.
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