diff --git a/doc/user/bfd.rst b/doc/user/bfd.rst index 3b49a53793..86b0c28002 100644 --- a/doc/user/bfd.rst +++ b/doc/user/bfd.rst @@ -184,6 +184,19 @@ BFD peers and profiles share the same BFD session configuration commands. The default is active-mode (or ``no passive-mode``). +.. index:: [no] minimum-ttl (1-254) +.. clicmd:: [no] minimum-ttl (1-254) + + For multi hop sessions only: configure the minimum expected TTL for + an incoming BFD control packet. + + This feature serves the purpose of thightening the packet validation + requirements to avoid receiving BFD control packets from other + sessions. + + The default value is 254 (which means we only expect one hop between + this system and the peer). + BFD Peer Specific Commands --------------------------