Dell Force10 Z9000 FTOS Command Line Reference Guide for the Z9000 System FTOS - Page 314
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Command History Usage Information Related Commands ROUTER BGP ROUTER ISIS (Not available on the C-Series.) Version 9.0.0.0 Version 8.3.8.0 Version 8.4.1.3 Version 8.2.1.0 Version 7.6.1.0 Version 7.5.1.0 Version 7.4.1.0 Introduced BFD for BGP on the Z9000. Introduced BFD for BGP on the S4810. Introduced BFD for BGP on the E-Series ExaScale. Introduced BFD for OSPF and ISIS on the E-Series ExaScale. Introduced BFD for OSPF on the C-Series. Introduced BFD for ISIS on the E-Series. Introduced BFD for OSPF on the E-Series. All neighbors inherit the timer values configured with the bfd neighbor command except in the following cases: • Timer values configured with the isis bfd all-neighbors or ip ospf bfd all-neighbors commands in INTERFACE mode override timer values configured with the bfd neighbor command. Likewise, using the no bfd neighbor command does not disable BFD on an interface if BFD is explicitly enabled using the isis bfd all-neighbors command. • Neighbors that have been explicitly enabled or disabled for a BFD session with the bfd neighbor or neighbor bfd disable commands in ROUTER BGP mode do not inherit the global BFD enable/disable values configured with the bfd neighbor command or configured for the peer group to which a neighbor belongs. The neighbors inherit only the global timer values (configured with the bfd neighbor command). show bfd neighbors - displays BFD neighbor information on all interfaces or a specified interface. bfd neighbor - explicitly enables a BFD session with a BGP neighbor or a BGP peer group. neighbor bfd disable - explicitly disables a BFD session with a BGP neighbor or a BGP peer group. bfd disable Disable all virtual router redundancy protocol (VRRP) sessions in a VRRP group. C-Series, E-Series, Z-Series Syntax Defaults Command Modes bfd disable Re-enable BFD using the no bfd disable command. BFD is disabled by default. INTERFACE VRRP 314
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