I would have to take a look, but sounds like duplicate routerID or BFD. OSPF is pretty straight forward on this.
Dennis Burgess, Mikrotik Certified Trainer MTCNA, MTCRE, MTCWE, MTCTCE, MTCINE, MTCSE, HE IPv6 Sage, Cambium ePMP Certified Author of "Learn RouterOS- Second Edition" Link Technologies, Inc -- Mikrotik & WISP Support Services Office: 314-735-0270 Website: http://www.linktechs.net Need to Automate MikroTik Backups: https://cloud.linktechs.net Create Wireless Coverage's with www.towercoverage.com -----Original Message----- From: AF <[email protected]> On Behalf Of Nate Burke Sent: Tuesday, October 11, 2022 5:18 PM To: AnimalFarm Microwave Users Group <[email protected]> Subject: Re: [AFMUG] OSPF Pulling my hair out I changed the RB4011 to a RB2009, and tried downgrading the RB4011 to ROS6.49.6 from ROS7.5 and it's doing the exact same thing. I've tried setting up an EoIP Tunnel across the F425, and changed the Router ID in OSPF. Still doing the exact same thing. As soon as I enable the F425 link, the Entire route table will flap between the Powerbridge and the F425 even though the powerbridge is a cost of 20 higher than the F425. If I disable the F425, everything is stable over the Powerbridge. Not sure what else to try. On 10/6/2022 4:22 PM, Robert Haas wrote: > Make sure you haven't duplicated your router id. > > > > -----Original Message----- > From: AF <[email protected]> On Behalf Of Nate Burke > Sent: Tuesday, October 4, 2022 1:58 PM > To: AnimalFarm Microwave Users Group <[email protected]> > Subject: [AFMUG] OSPF Pulling my hair out > > I have a site with a RB4011 connected via an old M5 Powerbridge, and an EPMP > PTP425. The 4011 is running ROSv7, everything else is on ROSv6. Connecting > to a CCR1036 and CCR1009 on the other ends of the radios. > > Everything was working perfectly for several months until a storm came > through, and now the F425 OSPF Session will not stay stable. The OSPF > Weights are set to prefer the F425 link. The OSPF neighbor never goes > down, Adjacency/state never change, but the RB4011 will update it's > entire routing table about every 5 seconds and flap back and forth > between the Powerbridge and the F425. The remote routers never update > the route to the 4011, it is stable over the F425. If I disable the > F425 neighbor, everything is stable over the powerbridge. If I disable the > Powerbridge neighbor, the router will lose connectivity for a second every 10 > or 15 seconds, like it loses it's routing table. > > There is no packet loss across the F425 link, and it will Tik to Tik bw test > at 100MB sync no problem and no packet loss. I've even tried changing ports > on the 4011, plugging the F425 into a completely separate OSPF router on the > remote end. I've also put the traffic through a VLAN on the F425 to see if > the F425 was doing something weird with the packets. The F425 radios on both > ends have been power cycled. I've also updated ROS to the latest 7beta, and > no change. > > I'd think this is an issue with ROSv7/6 since the routing table keeps > updating, but the powerbridge link is always fine, so it feels like something > with the F425. Especially since it happened after a storm. > But at the same time, how could a failure of the F425 be affecting OSPF? > When I do OSPF Logging on the 4011, nothing is looking out of the ordinary. > I guess I could try physically changing the 4011, but I've never had a > failure like that before. > > Mainly I just want to vent that I'm probably missing something stupid, I just > haven't been able to figure out what it is yet. > > -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
