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Re: [RRG] Fwd: I-D ACTION:draft-irtf-rrg-design-goals-00.txt




Hi Ricardo,

I just a brief comment about sec 3.8, Routing Quality.
In the space dimension, "Path inflation" has been used to describe how much the selected route is longer than the shortest geographic distance of all alternative routes between a pair of nodes, e.g.
http://www.sigcomm.org/sigcomm2003/papers/p113-spring.pdf


Thanks for the reference. As far as I know, 'stretch' is the commonly used, accepted terminology and unless there's some compelling reason not to do so, we should probably use that.


In the time dimension, routing quality can also be measured by its stability, i.e. the time routing keeps it state. Convergence is a factor that affects routing stability, e.g. http:// www.cs.ucla.edu/~rveloso/papers/imc175f-oliveira.pdf


Good point, I'll add stability to the list.  Any objections?

Tony

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