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I've heard the term edge to edge routing several times, but I'm having a hard time finding a formal definition as to what exactly this means. Can someone please explain what edge to edge routing is?

The Gilbert Arenas Dagger
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1 Answers1

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Like most IT terms, there is no formal definition. It means whatever the vendor wants it to mean.

But edge-to-edge routing in a cloud provider context means essentially using a "virtual cloud"** as a transit between another cloud and some other network (i.e., routing from one edge of the cloud to another).

For example, you have a corporate network connected to one Amazon VPC (A). That VPC is also connected to another VPC (B). Routing from your corporate network through VPC A to reach VPC B is an example of edge to edge routing (and it's not allowed).

Here is an Amazon document that uses the term extensively.

** Cloud providers have different product names for this: Virtual Private Cloud or Virtual Network.

Ron Trunk
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    Not allowed by Amazon or not allowed in some other way? – Paul May 01 '19 at 21:54
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    Amazon doesn’t allow VPCs to be transitive. So they don’t allow it. But if you use your own routers, you can make it happen. – Ron Trunk May 01 '19 at 23:04