Hello, today we have a problem with our network. When connectivity problems between routers were solved, we noted that bird process not running. The process suddenly disappeared without any messages to logs. last lines from Bird trace log: 2015-01-29 16:36:12 <TRACE> bfd1: Session to 87.244.33.248 expired 2015-01-29 16:36:12 <TRACE> bfd1: Session to 87.244.33.248 changed state from Up to Down 2015-01-29 16:36:12 <TRACE> bgp_mtik_36: BFD session down 2015-01-29 16:36:12 <TRACE> bgp_mtik_36: State changed to flush 2015-01-29 16:36:12 <TRACE> bgp_mtik_36: BGP session closed 2015-01-29 16:36:12 <TRACE> bfd1: Session to 87.244.33.248 changed state from Down to Init 2015-01-29 16:36:12 <TRACE> bgp_mtik_36: State changed to stop 2015-01-29 16:36:13 <TRACE> bgp_mtik_36: Down 2015-01-29 16:36:13 <TRACE> bfd1: Session to 87.244.33.248 removed 2015-01-29 16:36:13 <TRACE> bgp_mtik_36: Starting # service bird start ... 2015-01-29 17:16:11 <TRACE> kernel1: Initializing ... We use bird 1.4.0 It can be a problem which was solved in commit 864f52a5f4c47ac8dc44a8808beb7f038cbf9899 - "Fixes nasty bug in BFD"? or this is something else?