Dell Force10 S25-01-GE-24T FTOS 8.4.2.7 Command Line Reference Guide for E-Ser - Page 310

www.dell.com | support.dell.com 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 no parameters have been specified with the bfd all-neighbors 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 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. Related Commands bfd all-neighbors neighbor bfd disable show bfd neighbors Enable BFD sessions with all neighbors discovered by Layer 3 protocols. Explicitly disable a BFD session with a BGP neighbor or a BGP peer group. Display BFD neighbor information on all interfaces or a specified interface. neighbor bfd disable c e Explicitly disable a BFD session with a BGP neighbor or a BGP peer group. Syntax Parameters neighbor {ip-address | peer-group-name} bfd disable ip-address peer-group-name 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). Enter the name of the peer group that you want to explicitly disable for BFD sessions. Defaults Command Modes Command History None ROUTER BGP Version 8.4.2.5 Version 8.3.8.0 Version 8.3.7.0 Version 8.4.1.3 Introduced on the C-Series and E-Series TeraScale. Introduced on the S4810. Introduced on the S4810. 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 values configured with the bfd all-neighbors command or configured for the peer group to which the neighbor belongs. When you remove the disabled state of a BFD for BGP session with a specified neighbor by entering the no neighbor bfd disable command, the BGP neighbor 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 bfd all-neighbors bfd neighbor show bfd neighbors Enable BFD sessions with all neighbors discovered by Layer 3 protocols. Explicitly enable a BFD session with a BGP neighbor or a BGP peer group. Display BFD neighbor information on all interfaces or a specified interface. 310 | Bidirectional Forwarding Detection (BFD)