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by Retric 6156 days ago
The goal of a SLA is to insure that the service is up most of the time and can provide a given bandwidth most of the time. If you really want to have high up time you need 2 or more independent connections. T1 + cable works just fine. It's not about preventing downtime so much as reducing the window for a double failure.

PS: You can get an SLA that covers double time with a per indecent penalty, the ISP really will hop to fix the problem, but costs even more.