Hello, I have three Ubuntu physical machines with quagga (ospf area0/bgp with full route table on 2-4 uplink) and one whit bird (ospf only). On one of the routers (ospf/bgp) replace quagga on bird. Configuration bird attachment. After replacing the CPU load there is increased by 10-15%. On top Bird periodically consumes up to 90% of the CPU, and at a given time is restarted ospf: Inactivity timer expired for nbr. On one interfaces eth1.2508 to another bird router, I increased the Dead interval to 10 seconds. And it helped. What could be my problem? Large filters BGP, smallest ospf hello/dead interval or something else? One of restarts occurred at 13:13:13, OSPF trace in attachment, OSPF net packet in attachment. -- Кицул Андрей администратор Unix-систем ЗАО "НГС" +7-923-111-3940