Tuesday, April 13, 2021

OSPF - Multi Area, Multi Hub Area design thoughts

I'm starting to design a new network consisting of 2 Hubs (1 UK, 1 US) where all branch offices will connect to. Each hub has 2 routers to terminate vpns and the branch sites have a HA pair of Palo Altos meaning each branch will have 4 VPNs( 2 to UK hub, 2 to US).

The hubs will have their own area and connected to one another via area 0 but I'm unsure on how best to plan the branch site area design e.g. branch's all have unique areas, all branches are in area 0, regional areas etc.

I've moved from an EIGRP setup in my previous role which was much easier to scale with Hub and Spoke configurations so need a bit of help on this 😊.

Has anyone ever had a similar setup and what sort of design did you use?

Haven't ruled out the use of BGP but that'd mean configuring route reflectors etc so trying to check if OSPF was suitable



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