I have a 100+ routers in our backbone currently. I always used on all routers:
/routing ospf network> print
Flags: X - disabled, I - invalid
NETWORK AREA
0 10.10.10.0/23 backbone
Recently I started using only the /30 subnets between peers … which gets me to wondering now, if I want to make another area somewhere in my network (not backbone) and I end up using a /30 in that 10.10.10.0/23 range will all the routers think its part of the backbone or do they not care?
/routing ospf network> print
Flags: X - disabled, I - invalid
NETWORK AREA
0 10.10.10.30.0/30 area2
Basically can backbone and area2 have overlapping ip ranges, as long as its not on the direct neighbors of that area border?
Thx!