Our office has a single provider, however they have multiple upstream providers. With this we got an easy setup on our side (our provider is in the same building as us, so they simply ran a Cat5 cable to our office) but we get the benefit of having multiple providers so if one has a problem (which has happened) we are back up within a minute or two.
I would say that if having the WAN go down would impact business then having multiple providers is worth it. Especially if you can leverage them both at the same time. If having the WAN go down for an hour isn’t a big deal to the business then it is probably a waste of money.
Well we have different providers and that too we are using two different techonlogies for establing the WAN connectivity. We are using Frame Relay from one our Service provider and from other we are usingWi-max and VSAT. Since we are into health care business we need this kind of connectivity,
I have found that the “last mile” is the most trouble-prone part of the WAN. I have rarely had outages within the provider’s “cloud”. So, if you can get some type of redundancy in the local links, then you will address a major failure point and provide high availability to your WAN services.
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