Date: Sun, 8 Feb 1998 20:32:03 -0500 (EST) From: Andrew Partan <asp@partan.com>

I don't really have much of a problem with some 'golden' prefixes but I think that you should put down some more of the reasoning and background in the document.

Hi Andrew, yeah, thanks, your question triggered another final-final update, which made it into the doc: ======================================================================= = 1.6. "Golden Networks" = = Even though damping is strongly recommended, in some cases = it may make sense to exclude certain networks or even individual = hosts from damping. This is especially true if damping would cut = of the access to vital infrastructure elements of the Internet. A most = prominent example are root nameservers. = = At least in principle, there should be enough redundancy for root = nameservers. Though, in fact we are still facing a situation where, at = least outside USA, large parts of the Internet are seeing all of them = through the same one or two backbone/upstream links (sea cable) and = any instability of those links which is triggering damping would = unnecessarily prolong the inaccessibility of the root nameservers for an = hour (at least those sitting in a /24 or longer prefix). Therefore we = decided to define those "golden networks". Probably we could remove the = exemptions for the A, D and H servers, which are sitting in a /16. We = might consider this for a new version of the recommendation. Our = recommendation is just dealing with a minimum set of "golden networks" = which of course might be extended by local decision. = = Still these must be exceptions resulting from strong needs - the rule = should be to apply coordinated route flap damping throughout. =======================================================================

But please don't hold up this document just for this - getting the rest of the stuff done - with global uniform deployment of dampening is quite important. [For what its worth, Verio (AS 2914) deployed your documented dampening parameters last week - we had been running dampening with the cisco defaults prior to this.]

Hey great news, thanks !!! Regards CP --- ---------------------------------------------------------------------- --- --- Christian Panigl : Vienna University Computer Center - ACOnet --- --- VUCC - ACOnet - VIX : -------------------------------------------- --- --- Universitaetsstrasse 7 : Mail: Panigl@CC.UniVie.ac.at (CP8-RIPE) --- --- A-1010 Vienna / Austria : Tel: +43 1 4277-14032 (Fax: -9140) --- --- ---------------------------------------------------------------------- ---