I have the following network in which we are trying to connect our routers to the LAN switches using OSPF. Here OSPF Area will have 8 interfaces, where we are advertising the default
0.0.0.0 route from router and all LAN subnets from the switch 1 and 2 to the routers. For redundancy we also have point-to-point links between the two routers as well as two switches. They run point-to-point OSPF where the same LAN routes and default routes are available as well. Here, is there a OSPF loop possible because two different areas advertising the same routes, or based on SPF it will be taken care?
Area 0 will have four
/30 configured on four links.
Area 1 will have two IP addresses on an point-to-point link
Area 2 will also have point-to-point link using two IP addresses.
From Switch 1 and switch 2, we will advertise all LAN routes to router for which it is receiving traffic from Internet.
From router we will advertise the default route for out going traffic to reach the internet.
I don't have active running config as we are working on this to know whether it is fundamentally correct.