jyy at merit.edu
Thu Mar 24 22:21:38 UTC 1994
From: Vince Fuller <vaf at Valinor.Stanford.EDU>
Subject: Re: CIDR deployment
A live network is something which is very hard to simulate, as anyone who has
worked on new software or procedures for an operational network will probably
Agree. But in this case, the objective is to detect CIDR blackholes.
Using Harvard's systematic connectivity test approach with a test net
could accomplish the same as with a live network. Why using live networks?
I don't understand your objection - we have people who are willing, able, and
ready to cut some of their operational traffic over to using CIDR addressing.
This is with the full knowledge that there might be problems. Why not let them
do it? We will, of course, keep configurations in place to allow them and us
to back- out dependancies on CIDR on a moment's notice, in case things don't
work and we can't fix the CIDR infrastructure in a timely manner.
I just think there is a safer way to accomplish the same at this
stage, see above. When most of the CIDR unreachable ASs on Harvard's
list (not 'Shindler's List' :-)) disappear, there will be much less
unreachables from/to live network and that is the time.
I think what prevents us to move forward is the CIDR holes (ASs is neigher
CIDRing nor defaulting). We need to continue detecting the holes and
fill these holes one way or the other.
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