John Galt
Forward, March
Premium
join:2004-09-30
Happy Camp
 ·CenturyLink
| reply to John Galt
Re: Network Backhaul Fallback and Redundancy
Does this all still apply if I have two separate providers?
In theory I will be using the same upstream provider (since bandwidth is extremely cheap through them), but if I wanted to have upstream provider redundancy...what would I need to change (if anything)?
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A is A |
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sporkme
drop the crantini and move it, sister
Premium,MVM
join:2000-07-01
Morristown, NJ
 ·Optimum Online
| said by John Galt  :Does this all still apply if I have two separate providers? No, it gets much more tricky. Each provider would be giving you a range of addresses. The network you've described looks too small to be doing BGP with your upstreams. I would say if you want multiple providers, bring them to a central point (your datacenter) and run BGP with two providers there. Then within your own network use OSPF to handle failover between multiple backhauls to your datacenter and your PoP(s). OSPF is probably the easiest link state protocol to setup, and it works extremely well. You will need "real" routers if you don't want to pull your hair out with OSPF (unless your routers are OpenBSD, which has a very nice ospfd implementation).
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enjoy zesty ranch man-flavored baby tacos responsibly |
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nwn
Premium
join:2004-03-05
Centerville, IN
| reply to John Galt
Depends on whether you need public IPs inside. If you can do everything private inside, OSPF should find the 'up' path and get your traffic through. If you need public IPs, then you will need to go with something like Sporkme suggests.
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Scott |
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