The value of vRtrLdpSessFtReconnectTimeNego indicates the session's
Fault Tolerant(FT) Reconnect Timeout, it is set to the lesser of
the neighbor advertised FT Reconnect Timeout,
vRtrLdpSessFtReconTimeRemaining and the local timer Neighbor Liveness
Time, vRtrLdpGenGRNbrLiveTime. It is within this period that the
transport session is expected to re-establish, failure to do so
will cause the teardown of the LDP session and deletion of stale
bindings.