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panrg / path-properties

A Vocabulary of Path Properties
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Consider path as symmetric on a given level of abstraction #40

Closed cyrill-k closed 4 years ago

cyrill-k commented 4 years ago

I defined a path as symmetric only for a given level of abstraction and added IP routing symmetric paths as an example.

But I'm not convinced that covers all cases, as the order might not be relevant for certain service functions as Gorry pointed out. What we could do is phrase the definition more generally: "Two paths are symmetric if the path and its reverse path consist of the same path elements on the same level of abstraction, but typically in reverse order"

cyrill-k commented 4 years ago

I rephrased the service function example and added the textual fixes