Dell Z9000 Configuration Manual page 156

ROUTER BGP mode
neighbor {ip-address | peer-group-name} bfd disable
• Remove the disabled state of a BFD for BGP session with a specified neighbor.
ROUTER BGP mode
no neighbor {ip-address | peer-group-name} bfd disable
Use BFD in a BGP Peer Group
You can establish a BFD session for the members of a peer group (the neighbor peer-group-name
bfd command in ROUTER BGP configuration mode).
Members of the peer group may have BFD:
• Explicitly enabled (the neighbor ip-address bfd command)
• Explicitly disabled (the neighbor ip-address bfd disable command)
• Inherited (neither explicitly enabled or disabled) according to the current BFD configuration of the
peer group. For information about BGP peer groups, refer to
If you explicitly enable (or disable) a BGP neighbor for BFD that belongs to a peer group:
• The neighbor does not inherit the BFD enable/disable values configured with the bfd all-
neighbors command or configured for the peer group to which the neighbor belongs.
• The neighbor inherits only the global timer values that are configured with the bfd all-neighbors
command (interval, min_rx, and multiplier).
If you explicitly enable (or disable) a peer group for BFD that has no BFD parameters configured (for
example, advertisement interval) using the neighbor peer-group-name bfd command, the peer
group inherits any BFD settings configured with the bfd all-neighbors command.
Displaying BFD for BGP Information
You can display related information for BFD for BGP.
To display information about BFD for BGP sessions on a router, use the following commands and refer to
the following examples.
• Verify a BFD for BGP configuration.
EXEC Privilege mode
show running-config bgp
• Verify that a BFD for BGP session has been successfully established with a BGP neighbor. A line-by-
line listing of established BFD adjacencies is displayed.
EXEC Privilege mode
show bfd neighbors [interface] [detail]
• Check to see if BFD is enabled for BGP connections.
EXEC Privilege mode
show ip bgp summary
• Displays routing information exchanged with BGP neighbors, including BFD for BGP sessions.
EXEC Privilege mode
show ip bgp neighbors [ip-address]
156
Configure Peer Groups.
Bidirectional Forwarding Detection (BFD)