Dell Force10 Z9000 FTOS Command Line Reference Guide for the Z9000 System FTOS - Page 313
Bidirectional Forwarding Detection (BFD), bfd all-neighbors
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7 Bidirectional Forwarding Detection (BFD) Bidirectional forwarding detection (BFD) is a detection protocol that provides fast forwarding path failure detection. The Dell Force10 operating software (FTOS) implementation is based on the standards specified in the IETF Draft draftietf-bfd-base-03 and supports BFD on all Layer 3 physical interfaces including virtual local area network (VLAN) interfaces, and port-channels. BFD is supported on the C-Series, E-Series, Z-Series, and S4810 platforms. bfd all-neighbors Enable BFD sessions with all neighbors discovered by Layer 3 protocols intermediate system to intermediate system (ISIS), open shortest path first (OSPF), or border gateway protocol (BGP) on router interfaces, and (optionally) reconfigure the default timer values. C-Series, E-Series, Z-Series, S4810 Syntax Parameters bfd all-neighbors [interval interval min_rx min_rx multiplier value role {active | passive}] interval milliseconds min_rx milliseconds multiplier value role [active | passive] (OPTIONAL) Enter the keyword interval to specify non-default BFD session parameters beginning with the transmission interval. The range is 50 to 1000. The default is 100. Enter the keyword min_rx to specify the minimum rate at which the local system would like to receive control packets from the remote system. The range is 50 to 1000. The default is 100. Enter the keyword multiplier to specify the number of packets that must be missed in order to declare a session down. The range is 3 to 50. The default is 3. Enter the role that the local system assumes: • Active-The active system initiates the BFD session. Both systems can be active for the same session. • Passive-The passive system does not initiate a session. It only responds to a request for session initialization from the active system. The default is active. Defaults Command Modes See Parameters ROUTER OSPF 313
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