I would use a static route in the core to get to that other subnets you're talking about. If you had two routers it could be a much more elegant solution by getting each router to originate their primary prefixes via a type 1 LSA, while redistributing the other subnets as type 5s. This way the rest of the network would prefer the type 1 over the type 5 and have each of them backup the other
Thanks Darren http://www.mellowd.co.uk/ccie > Date: Sat, 14 Dec 2013 23:36:08 +0100 > From: [email protected] > To: [email protected] > Subject: [c-nsp] Is this possible with OSPF? > > Hi, > > I have a remote site connected via two links at separate places in our > network. One link (stm1) is the primary route, the second (50M) is > mostly backup link. So far it's rather easy, using OSPF cost entries in > the interfaces will take care of that. Anyway, the backup link also has > a couple of other sites connected in a /27 broadcast net (via a virtual > switch in the WAN). Those sites (which only have that one uplink) > announce local addresses (e.g. loopback interfaces) that are used for > VPN tunnels. Those IPs should be routed via this vswitch link instead of > the primary link. Which of course means that by setting the OSPF cost on > the interface, the priority would be lowered, and the routing via the > regular link would be used ... > Is there any way (route maps?) to alter the OSPF cost just for certain > prefixes? I could probably use some tracking and stuff to use static > routes with lower admin cost to get similar results, but that would > lower convergence times in case of link failures (I'm using 3 hellos per > second for quick failover of the links) > > Tnx, Garry > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
