November 1997 - Test - lists.nanog.org

Re: Geographic v. topological address allocation
by Sean M. Doran 17 Nov '97

17 Nov '97

Tony Li <tli(a)juniper.net> writes: > An interesting metric might be if the organization's min-cut-set bandwidth > is exceeded by its regional access bandwidth. This is a brilliant idea, but how do you propose to measure the regional access bandwidth, or the even more fun task of determining the total bandwidth so that you can determine the pro rata share due any arbitrary subtree? Sean.

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Re: AGIS Signing up New Spammers
by Leo Bicknell 17 Nov '97

17 Nov '97

In article <64q19v$o1(a)gizmo.dimension.net> you write: >Best guess at ths time, without having had a full review done, is that >filtering spam at the source *might* fall into the same category. However, >since in theory mail is *personal* in nature ratehr than broadcast, it might >be deemed to fall into the same category as blocking all carrier route sorted >bulk mail in the real world. However, note that you *can't* get USPS to do >that, either. The follow your argument wouldn't there be a difference between blocking e-mail from a site (eg, the RBL, or your own sendmail.cf rules) and blackholing an entire site at the IP level? In one case you are acting as an editor claiming that only mail is offensive, in the other you are acting as a service provider preventing damage to your network? It would seem to me that if you argue that the site causes "network problems" and simly toss all of their packets regardless of content you are safer. It is also nastier to the spammer/their provider (eg one or two bad apples render all of AGIS's network unreachable to a great many), which in theory should get better responce to fix the problem. To site an example, no one questions a providers ability to filter a site when it is Smurf'ing them, why not when spamming them? -- Leo Bicknell - bicknell(a)dimension.net Network Engineer - Dimension Enterprises 1-703-709-7500, fax, 1-703-709-7699

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Exchange point Cross-Matrix updated
by Sean Donelan 17 Nov '97

17 Nov '97

I'm sure everyone has been waiting for this. I have updated my Exchange Point Cross-Matrix <http://dranet.dra.com/ExchangeMatrix.html> The matrix consists of 213 listings at 9 exchange points. -- Sean Donelan, Data Research Associates, Inc, St. Louis, MO Affiliation given for identification not representation

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RADB dead?
by Mark Prior 17 Nov '97

17 Nov '97

Is it just me or is the RADB decided to become more flacky of late? eg nara> whois -h whois.ra.net as2764 whois: connect: Connection refused Mark.

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Re: Geographic v. topological address allocation
by Tony Li 16 Nov '97

16 Nov '97

> What I was trying to postulate, unsuccessfully, there is no such > thing as an universal, optimal hierarchical addressing scheme. Sean, It's pretty much obvious that the obvious definition of 'optimality' can only be achieved if the topology is strictly hierarchical. Further, there is probably a 'maximal' addressing scheme for a given topology. But's only useful for the next 10 seconds that that topology continues to exist. ;-) The other point that I think you're trying to make is that the maximal hierarchy must follow the topology, and in some cases, this may actually cause addressing divisions to not follow organizational boundaries. Further, the organizations involved must be the ones to recognize this and follow thru appropriately. An interesting metric might be if the organization's min-cut-set bandwidth is exceeded by its regional access bandwidth. Tony

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please stop discussing spam on NANOG
by Alan Hannan 16 Nov '97

16 Nov '97

I've been on this mailing list for approximately 4 years. While the content rarely approaches academia, general discussions about network design, operation, and direction are appreciated. But, discussions about who allows spammers on, who doesn't, and why the do or don't, are in my opinion, out of line. Please censor yourselves, and don't blather about non-operational issues like SPAM and bad DNS habits. -alan

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Re: please stop discussing spam on NANOG
by Luke Parrish 16 Nov '97

16 Nov '97

I am going to add a "I agree" to that one... Luke At 02:30 PM 11/16/97 -0500, you wrote: > > I've been on this mailing list for approximately 4 years. > > While the content rarely approaches academia, general discussions > about network design, operation, and direction are appreciated. > > But, discussions about who allows spammers on, who doesn't, and > why the do or don't, are in my opinion, out of line. > > Please censor yourselves, and don't blather about non-operational > issues like SPAM and bad DNS habits. > > -alan > > >

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16 Nov '97

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Re: Geographic v. topological address allocation
by Sean Donelan 16 Nov '97

16 Nov '97

>Not that I want to advocate uniform retail pricing structures - >my point is only that without such uniformity of retail structures >such 'follow the money' arguments as Sean presents here >quickly break down to a maze of twisty little passages. I agree that following the money doesn't always work. Personality seems to play a key part. I don't know how else to explain some of the decision making that went into some of today's network operation. People tend to view the problem in different ways depending on their background. What I was trying to postulate, unsuccessfully, there is no such thing as an universal, optimal hierarchical addressing scheme. I thought I had chosen examples from the opposite ends of the spectrum. I guess I wasn't extreme enough in my examples. Perhaps I should have used the ISBN hierarchy, a combination of language group, country and publisher prefix. I'm going to publish a million books, so I should get a 'big' publishers prefix. -- Sean Donelan, Data Research Associates, Inc, St. Louis, MO Affiliation given for identification not representation

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by Jorge Amodio 16 Nov '97

16 Nov '97

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