The mpls te bfd static initial-down command specifies the static BFD initial state of SR-MPLS TE LSP is Down.
The undo mpls te bfd static initial-down command specifies the static BFD initial state of SR-MPLS TE LSP is Unknown.
By default, the static BFD initial state of SR-MPLS TE LSP is Unknown.
Usage Scenario
The device is configured with a static BFD for SR-MPLS TE LSP. When an incorrect SR-MPLS TE label stack is received, the initial state of BFD is Unknown, and the traffic into the wrong tunnel will be interrupted for 1 to 2 minutes.
After the function that static BFD initial-down is configured, the initial state of BFD is Down. Traffic will not be introduced into the tunnel until BFD negotiation is Up.<HUAWEI> system-view [~HUAWEI] mpls [*HUAWEI-mpls] mpls te [*HUAWEI-mpls] quit [*HUAWEI] interface tunnel 1 [*HUAWEI-Tunnel1] tunnel-protocol mpls te [*HUAWEI-Tunnel1] mpls te signal-protocol segment-routing [*HUAWEI-Tunnel1] destination 2.2.2.2 [*HUAWEI-Tunnel1] mpls te bfd static initial-down