ok, let's suppose that usually provides the most appropriate environment for placing the dns servers and their co-infrastructure. taking it only technically, providing the connectivity for the ixp is a detail (to announce or not to announce). maybe the ixp could allocate a 'stub' subnet - separate from the transit subnet - and provide a voluntary mlpa to all the hosted isps. this would not break the isp policies on announcing the transit ixp subnet. all these are details. i see a space for another topic in this thread - updating the dns infrastrucure a bit. to be more specific: - would the ixp-located tld dns servers server only a small set of tld's each? if so, would it be region-based or agreement-based? - would it be worth the effort starting a project similar to irr that would serve as a common source for dns configurations? it'd be nice to hear your oppinions -- Tomas Daniska systems engineer Tronet Computer Networks Plynarenska 5, 829 75 Bratislava, Slovakia tel: +421 2 58224111, fax: +421 2 58224199 A transistor protected by a fast-acting fuse will protect the fuse by blowing first.

-----Original Message----- From: Arnold Nipper [mailto:arnold@nipper.de] Sent: 6. júna 2002 16:29 To: Daniska Tomas Cc: Nipper, Arnold; nanog@merit.edu Subject: Re: Re: KPNQwest ns.eu.net server.

On Thu, Jun 06, 2002 at 04:13:08PM +0200, Daniska Tomas wrote:

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how would you guarantee connectivity?

as you have a lot of ISPs around you it should be really easy to get some connectivity. Very easy: tell some friendly ISP to announce your prefix/AS to outside.

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should each isp present should provide bandwidth as part of

collocation expenses?

What do you mean by this? If some ISP want to donate bw, nice. If not also Ok.

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should the opexes be included in the colo bill?

Which colo bill?

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and then - this would probably make the colo becoming a

connectivity provider, wouldn't it?

...

Not necessarily. This much depends on your IXP model. Let's take DE-CIX. There is an association running DE-CIX, but InterXion as colo partner takes cae for a lot of things. If DE-CIX would offer infrastructural services, InterXion still would remain a simple colo provider.

Arnold -- Arnold Nipper Email: arnold.nipper@de-cix.net DE-CIX, The German Internet Exchange Mobile: +49 172 2650958