Community discussions

MikroTik App
 
dld2517
just joined
Topic Author
Posts: 2
Joined: Thu Jan 16, 2014 6:01 pm

OSPF Route installed from LSA from only one subnet

Thu Jan 16, 2014 11:49 pm

I am running an OSPF network. Each one of my routers has two subnets. 10.1.x.0/24 and 10.21.x.0/24 for the first time yesterday, I found that the neighboring routers received both subnets and showed them in their LSA tables, but only the first, or 10.1.x.0/24 subnet was installed as a route. This left 10.21.x.0/24 not being installed. Therefore traffic had no return path for data on 10.21.x.0/24 subnet.

Starting and stopping OSPF on the neighboring interface caused the tables to be repopulated, and the routes were then installed properly. This is very perplexing though, because we have been running this configuration for about three years and have never seen this problem, and it did not happen to all routers, only a handful.

And on the routers where it happened, some of them were connected and some were not.

Any ideas here?

Thanks,
Dan Darden.
 
samsung172
Forum Guru
Forum Guru
Posts: 1191
Joined: Sat Apr 04, 2009 3:45 am
Location: Østfold - Norway
Contact:

Re: OSPF Route installed from LSA from only one subnet

Sat Jan 18, 2014 2:23 am

What do you mean by not Connected? Ospf? ot physical not Connected?

I have seen this a lot in nbma setup. do you use point to point?

Who is online

Users browsing this forum: wernerptu and 22 guests