I'm working on a new network design for my company. We're expanding and opening some more offices and satalite sites. We're a UK based company but opening some US sites.
We have a main UK office (Office A on the diagram) a call centre (Office B) and then two buildings on another site (Office C). The USA offices will be very small and only require a couple of computers, hence the small IP allocation. I have marked the IP addresses of the links on the diagram, I intend to use 3560 switches for all the switches marked and all links will be layer 3 to route multiple VLANs from each site to each site (where permitted).
My question is this: How do I achieve this in the switches? I'm thinking that OSPF is the way forward, is this right? I want to do as little configuration on the switches as possible to allow for dynamic updates of the network (i.e. I don't want to add static routes for everything).
If this is the case, where do I begin with OSPF? I have never set it up before.
If OSPF is the wrong thing to use, then what would you recommend?
But just for the sake of completeness in my knowledge, is what I'm trying to do with ospf achievable? And if so, where have I gone wrong? According to Wikipedia ospf is a loopless protocol suggesting this should never happen in the first place.
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