Re: [Idr] AS hopcount draft as an IDR WG document
"Elmar K. Bins" <elmi@4ever.de> Mon, 24 October 2005 12:10 UTC
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Date: Mon, 24 Oct 2005 14:09:56 +0200
From: "Elmar K. Bins" <elmi@4ever.de>
To: Pekka Savola <pekkas@netcore.fi>
Subject: Re: [Idr] AS hopcount draft as an IDR WG document
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References: <200510240238.j9O2coG11501@merlot.juniper.net> <20051024073925.GB93623@new.detebe.org> <Pine.LNX.4.61.0510241445050.21733@netcore.fi>
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Pekka :) pekkas@netcore.fi (Pekka Savola) wrote: > note: I only took a quick look at the document. You should, it would answer your question c) > a) an "AS" is a coarse concept. A single router, or a single AS > could span across the globe. Thus, "AS hop count" in itself doesn't > buy you much. You'll have to decide whether it's useful for your AS. > b) given a), this attribute would likely only be used with small hop > counts, say 1-3, because if the operator doesn't investigate the > AS-level topology in detail, (s)he cannot know which count (s)he would > want to use to obtain the intended policy. I'm assuming investigation > of AS-based topology beyond a couple of AS hops would be infeasible. One could start experimenting, though :) > So, I'm a bit of skeptic whether this kind of tool is useful enough > for the intended purpose (i.e., would it become used). As it happens, > you can already use NO_EXPORT for hop 1, and in most cases > provider-specific communities for hop 2. I'm not sure if it's clear > enough that a more generic solution is necessary. If it would be used at all, and large-scale, we could get quite a lot of rubbish out of the DFZ, buying a couple more years. Elmar. -- "Begehe nur nicht den Fehler, Meinung durch Sachverstand zu substituieren." (PLemken, <bu6o7e$e6v0p$2@ID-31.news.uni-berlin.de>) --------------------------------------------------------------[ ELMI-RIPE ]--- _______________________________________________ Idr mailing list Idr@ietf.org https://www1.ietf.org/mailman/listinfo/idr
- [Idr] AS hopcount draft as an IDR WG document Yakov Rekhter
- Re: [Idr] AS hopcount draft as an IDR WG document Elmar K. Bins
- Re: [Idr] AS hopcount draft as an IDR WG document Pekka Savola
- Re: [Idr] AS hopcount draft as an IDR WG document Elmar K. Bins
- Re: [Idr] AS hopcount draft as an IDR WG document Curtis Villamizar
- Re: [Idr] AS hopcount draft as an IDR WG document Curtis Villamizar
- Re: [Idr] AS hopcount draft as an IDR WG document Robert Raszuk