Users Guide

Parameters
ip-address Enter the IP address of the BGP neighbor that you want to explicitly disable 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 disable for BFD sessions.
Defaults None
Command Modes ROUTER BGP
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000–ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
9.0.0.0 Introduced on the Z9000.
8.3.19.0 Introduced on the S4820T.
8.3.8.0 Introduced on the S4810.
8.4.1.3 Introduced on the E-Series.
Usage Information
When you explicitly disable a BGP neighbor for a BFD session with the neighbor bfd disable command:
• The neighbor does not inherit the global BFD disable values congured with the bfd neighbor command or
congured for the peer group to which the neighbor belongs.
• The neighbor only inherits the global timer values congured with the bfd neighbor command: interval,
min_rx, and multiplier.
When you remove the Disabled state of a BFD for a BGP session with a specied neighbor by entering the no
neighbor bfd disable
command, the BGP link with the neighbor returns to normal operation and uses the
BFD session parameters globally congured with the bfd neighbor command or congured for the peer group
to which the neighbor belongs.
Related Commands
• neighbor bfd — enable a BFD session explicitly with a BGP neighbor or a BGP peer group.
show bfd neighbors
Display BFD neighbor information on all interfaces or a specied interface.
Syntax
show bfd neighbors interface [detail]
Parameters
interface Enter one of the following keywords and slot/port or number information:
• For a 1-Gigabit Ethernet interface, enter the keyword GigabitEthernet then the
slot/port information.
Bidirectional Forwarding Detection (BFD) 321