OSPF NBMA

RouterOS Forwarding Protocols
1

I’m having a problem with OSPF

12:01:10 route,ospf,info Database Description packet has init bit set in middle of an exchange

Station-Bridge side:

12:01:10 route,ospf,info OSPFv2 neighbor 172.17.84.217: state change from Full to Down

This is happening several times a day.

I tried changing the interface to nmba and adding the nmba neighbor on each side, and while the neighbors show up, they never exchange any routes.

Any help?

2

That should never happen - what version are you running?

3

5.5 on both sides..

Now for the weird thing… for S&G, I disabled and re-enabled the OSPF instance, and the routes propagated as expected.

Now, I can understand restarting OSPF… to a point. That point, is that the change from broadcast to nmba was made on both routers, but I only had to restart one of them.

Anyways, thanks for looking.