Hi BSD list, 

I am having troubles stabilizing the ospfd at OpenBSD 6.2. 

The neighbor relationship is between a Cisco Router and the OpenBSD box. 

I am running iBGP between the two routers and ospf in a single area as the
IGP. 

At random hours although the session seems stable the interfaces flap and
ospf neighborship is recalculated and restarted. 

|CISCO ROUTER|   ----  | OPEN BSD BOX | 


ospfd.conf: 

router-id 10.20.88.4 
redistribute connected

area 0.0.0.0 {
        interface bnx0 
        }


bgpd.conf: 
AS XXXX

router-id 10.20.88.4
network x.x.x.x/24

neighbor 10.20.88.5 {
        descr "ASR_TELIA"
        remote-as XXXX
        local-address 10.20.88.4
        set nexthop self
}

----

/var/log/daemon output: 

Feb  8 01:27:11 brdr ospfd[56637]: orig_rtr_lsa: empty area 0.0.0.0
Feb  8 01:27:11 brdr ospfd[56637]: interface bnx0 down
Feb  8 01:27:13 brdr ospfd[56637]: interface bnx0 up
Feb  8 02:47:17 brdr ospfd[56637]: orig_rtr_lsa: empty area 0.0.0.0
Feb  8 02:47:17 brdr ospfd[56637]: interface bnx0 down
Feb  8 02:47:19 brdr ospfd[56637]: interface bnx0 up
Feb  8 10:44:08 brdr ospfd[56637]: orig_rtr_lsa: empty area 0.0.0.0
Feb  8 10:44:08 brdr ospfd[56637]: interface bnx0 down
Feb  8 10:44:10 brdr ospfd[56637]: interface bnx0 up
Feb  8 11:17:18 brdr ospfd[14381]: desync; scheduling fib reload
Feb  8 11:17:26 brdr ospfd[14381]: reloading interface list and routing
table
Feb  8 13:06:15 brdr ospfd[56637]: orig_rtr_lsa: empty area 0.0.0.0
Feb  8 13:06:15 brdr ospfd[56637]: interface bnx0 down
Feb  8 13:06:16 brdr ospfd[14381]: desync; scheduling fib reload
Feb  8 13:06:17 brdr ospfd[56637]: interface bnx0 up
Feb  8 13:06:29 brdr ospfd[14381]: reloading interface list and routing
table
Feb  8 13:24:54 brdr ospfd[14381]: desync; scheduling fib reload
Feb  8 13:25:03 brdr ospfd[14381]: reloading interface list and routing
table
Feb  8 13:45:43 brdr ospfd[56637]: orig_rtr_lsa: empty area 0.0.0.0
Feb  8 13:45:43 brdr ospfd[56637]: interface bnx0 down
Feb  8 13:45:45 brdr ospfd[56637]: interface bnx0 up



I have also tried older version 6.0, 6.1, 5.9 with the same interface flaps. 


ospfctl show neigh                                                              
                
ID              Pri State        DeadTime Address         Iface     Uptime
10.20.8.5     1   FULL/DR      00:00:37 192.168.20.26     bnx0      00:44:14


# ospfctl show interface bnx0

Interface bnx0, line protocol is UP
  Internet address 192.168.20.25/30, Area 0.0.0.0
  Linkstate active, mtu 1500
  Router ID 10.20.88.4, network type BROADCAST, cost: 10
  Transmit delay is 1 sec(s), state OTHER, priority 1
  Designated Router (ID) 10.20.88.5, interface address 192.168.20.25
  Backup Designated Router (ID) 0.0.0.0, interface address 0.0.0.0
  Timer intervals configured, hello 10, dead 40, wait 40, retransmit 5
    Hello timer due in 00:00:08+773msec
    Uptime 00:47:55
  Neighbor count is 1, adjacent neighbor count is 1




Please help I have tried to keep the configuration files as simple as I can
with no success on stabilizing the ospfd process. 

Thanks in advance





                       



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