isis: ignore BFD state updates for unknown sessions - #152
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The IS-IS BFD state-update handler unconditionally scheduled LSP re-origination on any
BfdStateUpd, including a session that matches no adjacency (e.g. an unknown/stale session going down). This gates the LSP re-origination on an adjacency actually being brought down, so an unknown BFD-down is ignored instead of causing spurious LSP churn.Adds a conformance case (
nb-config-iface-bfd4) for the unknown-session BFD-down.🤖 Generated with Claude Code