According to a recent Uptime Institute report, network failures trail only power outages as a cause of downtime. The data also suggests that full “2N” redundancy is also an excellent way to mitigate the risk of downtime. This got me thinking about a reoccurring conversation about SDWAN redundancy I have with IT managers. In one form or another the question: “how can SD-WAN deliver the same reliability and redundancy as MPLS when it uses the public Internet?” comes up. My response? SD-WAN + public Internet alone can’t. You have to have a private backbone.
Cato’s cloud-native approach to SD-WAN not only matches MPLS reliability across the middle-mile, it offers better redundancy in the last-mile. Why? MPLS provides limited active-passive redundancy in the last-mile while Cato delivers active-active redundancy and intelligent last-mile management (ILLM).
Here, we’ll compare MPLS redundancy to SD WAN redundancy and explain why active-active redundancy and ILLM are so important.