Users Guide

Version Description
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 ExaScale.
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 — Explicitly enables a BFD session 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.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port information.
•
For a port channel interface, enter the keywords port-channel then a
number.
• For a VLAN interface, enter the keyword vlan then a number from 1 to 4094.
detail (OPTIONAL) Enter the keyword detail to view detailed information about BFD
neighbors.
Defaults none
Command Modes
• EXEC
• EXEC Privilege
Bidirectional Forwarding Detection (BFD)
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