[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [RRG] Precision of the goals?
On Apr 30, 2007, at 1:52 AM, Brian E Carpenter wrote:
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.
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?
I think so, where it's possible. And I'm really not looking for
firm numbers necessarily - just something that allows us to review
a proposed solution other than by gut feeling.
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.
Yes. But things like "log N rather than N^2" probably can't be gamed.
Brian,
I'm not opposed to the suggestion, but I'm not sure how to specify
metrics that will capture proper space/time complexity measures
without inviting folks to drown us in detail or enable gaming.
Specific contributions are most welcome.
My best take for routing growth would be something like:
The proposed solution must limit growth in the size of the table to
not exceed 1.2X/2 years.
Regards,
Tony
--
to unsubscribe send a message to rrg-request@psg.com with the
word 'unsubscribe' in a single line as the message text body.
archive: <http://psg.com/lists/rrg/> & ftp://psg.com/pub/lists/rrg