What is the best way to interface two OSPF backbone areas?


There is a company which is considering acquiring another company - both have networks that use OSPF with a proper hierarchical design.

What is the best way to interface the two area 0 backbone areas together? Could they just be combined if there are no overlapping subnets, or is that ill-advised?
wabobAsked:
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rfc1180Connect With a Mentor Commented:
>What is the best way to interface the two area 0 backbone areas together? Could they just be combined if there are no overlapping subnets, or is that ill-advised? Tags:
networking

If you are completly positive that there are no overlapping subnets/prefixes, just physically connect a router from each domain, create a layer 3 interface with an IP and add those interfaces into the OSPF process.

Billy
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WissamConnect With a Mentor Senior Network EngineerCommented:
IF no overlapping subnets, i would create a Layer 3 link between the two area 0 advertise the link into area 0 and you are good to go.. everything would work instantly
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