OSPF Type 7 LSA and "cost"
I'm trying to configure an NSSA, and have run into an interesting issue - I'm curious what I'm missing from both a real world and a knowledge gap perspective. I imagine this is the kind of thing that would come up on the IE. I put quotes around cost since I'm not certain that's the issue, but I imagine that it is.
Basically, the scenraio is this - there's a single ABR directly connected to two internal routers inside an NSSA, so one layer 3 hop to each. Those two internal routers are also directly connected - r1, r2, and r3 in an OSPF love triangle. Fairly standard scenario. When I include interfaces in OSPF, they show up in the RIB/FIB correctly, and route via the shortest path. However, when connected routes (interfaces on each internal router) are redistributed into the NSSA, they show up on the ABR as equal cost paths, when they obviously are not.
I know I've read something about dealing with this in the past, but I simply cannot find it at this point. I can run OSPF on all the major interfaces on the internal routers to overcome the issue short term, but eventually some customer is going to require a subnet, and I'll have to redistribute static subnets for that customer. I imagine it's something as simple as dealing with E1 and E2 routes, but I'm coming up short.