Dell C9010 Modular Chassis Switch EMC Networking Command-Line Reference Guide - Page 311
Introduced BFD for VRRP and OSPFv3 on Z9000, S4810, and S4820T.
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The default is active. Defaults Refer to Parameters. Command Modes ROUTER OSPF ROUTER OSPFv3 ROUTER BGP ROUTER ISIS INTERFACE (BFD for VRRP only) Command History This guide is platform-specific. For command information about other platforms, see the to 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) 9.9(0.0) 9.2(1.0) 9.2.(0.0) 9.0.0.0 8.3.19.0 8.3.8.0 8.4.1.3 8.2.1.0 7.6.1.0 7.5.1.0 7.4.1.0 Introduced support for enabling BFD on non-default VRFs for OSPFv2. Also, introduced support for enabling BFD on non-default VRFs for OSPFv3 . Introduced on the C9010. Introduced on the Z9500. Introduced BFD for VRRP and OSPFv3 on Z9000, S4810, and S4820T. Introduced BFD for BGP on the Z9000. Introduced on the S4820T. 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. Usage Information Related Commands All neighbors inherit the configured timer values except in the following cases: ● Timer values configured with the isis bfd all-neighbors or ip ospf bfd allneighbors commands in INTERFACE mode override timer values configured with the bfd allneighbors command. Likewise, using the no bfd neighbor command does not disable BFD on an interface if you explicitly enable BFD 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 all-neighbors command or configured for the peer group to which a neighbor belongs. The neighbors inherit only the global timer values. You can only enable BFD for VRRP in INTERFACE command mode (vrrp bfd all-neighbors). show bfd neighbors - displays BFD neighbor information on all interfaces or a specified interface. neighbor bfd disable - explicitly disables a BFD session with a BGP neighbor or a BGP peer group. Bidirectional Forwarding Detection (BFD) 311
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