Experts, rs2 is a IOS router and rc2 is Junos router and they have an established ISIS adjacency with BFD; fine. Then with a fw filter I block BFD packets reaching RC2; the ISIS session goes down as I would expect but then it is re-established. How is that possible the session is re-established when BFD packets are blocked?
This is the console of rc2. rs2#show bfd neighbors NeighAddr LD/RD RH/RS State Int 1.1.6.53 3/43 Up Up Te2/2 !!! Here I block BFD !!! Dec 28 11:13:27.593 CET: %CLNS-5-ADJCHANGE: ISIS: Adjacency to rc2 (TenGigabitEthernet2/2) Down, BFD hold time expired Dec 28 11:13:27.601 CET: %CLNS-5-ADJCHANGE: ISIS: Adjacency to rc2 (TenGigabitEthernet2/2) Up, new adjacency rs2#show bfd neighbors NeighAddr LD/RD RH/RS State Int 1.1.6.53 3/43 Down Init Te2/2 rs2#show isis neighbors Tag null: System Id Type Interface IP Address State Holdtime Circuit Id rc2 L2 Te2/2 1.1.6.53 UP 26 01 _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp