Administrator Guide

• The neighbor does not inherit the global BFD disable values configured with the bfd all-neighbors
command or configured for the peer group to which the neighbor belongs.
• The neighbor only inherits the global timer values configured with the bfd all-neighbors command:
interval, min_rx, and multiplier.
When you remove the Disabled state of a BFD for a BGP session with a specified 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 configured with the bfd all-neighbors command or configured for the
peer group to which the neighbor belongs.
Related
Commands
show bfd neighbors — displays the BFD neighbor information on all interfaces or a specified interface.
show bfd neighbors
Display BFD neighbor information on all interfaces or a specified interface.
C9000 Series
Syntax
show bfd [vrf vrf name] neighbors interface [detail]
Parameters
interface Enter one of the following keywords and slot/port or number information:
• For a 10-Gigabit Ethernet interface, enter the keyword tengigabitethernet then
the slot/port information.
• For a port-channel interface, enter the keyword port-channel then a number. The
range is from 1 to 128.
• For VLAN interfaces, enter the keyword vlan then a number from 1 to 4094. For
ExaScale VLAN interfaces, the range is 1 to 2730 (VLAN IDs can be from 0 to 4093).
detail (OPTIONAL) Enter the keyword detail to view detailed information about BFD
neighbors.
Defaults none
Command Modes
• EXEC
• EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms, see 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
9.11(2.1P1) Introduced the vrf keyword.
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
9.0.0.0 Introduced on the Z9000.
8.3.19.0 Introduced on the S4820T.
8.3.8.0 Added support for BFD for BGP on the S4810.
8.4.1.3 Added support for BFD for BGP on the E-Series ExaScale.
8.2.1.0 Introduced on the E-Series ExaScale.
7.6.1.0 Introduced on the C-Series.
7.5.1.0 Added support for BFD for VLAN and port-channel interfaces on the E-Series.
7.4.1.0 Introduced BFD on physical ports on the E-Series.
310 Bidirectional Forwarding Detection (BFD)