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Re: [RRG] Precision of the goals?


Hi Brian,


I'm wondering how much precision there should be in the goals.
Just to take the first one as an example:
Thus, the first required goal is to provide significant improvement 
   to the scalability of the routing plane.


Should we be looking for a way to measure that goal? For example,
by having a goal that the RIB size goes like log(N) for some measure N? 
Obviously that is simplistic - my point is to ask whether we
want to define metrics.

If the goals are only qualitative, it will be hard to judge
proposals.
Well, my take on it is that we will have a hard time being quantitative about all of the goals. How do we quantify 'deployability', for example? And if we can't quantify all of the goals, is there really a benefit in quantifying some of them?
This is exactly why the second paragraph of the introduction is a request to use 'good judgement'.
There are also other considerations, such as folks "designing to the test" and gaming the system by rigging the goals that we should avoid, IMHO. 



BTW another point occurred to me when reading the Asbtract


    ...The RRG is designing
   an alternate architecture to meet these challenges.  This document
consists of a prioritized list of design goals for the architecture.
If we want the broader community to take any notice of the promised design, it seems necessary to get some measure of buy-in from the broader community 
for the goals, once they have taken shape.
Yes, that certainly makes sense. Any specific requests there? Does presenting it to INT area seems sufficient? 

Tony

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