internet exchanges are not per-se "redundant" they basically are a switch which actually, because of the many connected parties, most of which do not have enough PAID transit to cover any outages on it, causes more problems than they are good for. (the amsix with their many outages and connected parties that rely primarliy on it's functionality is a prime example here) internet exchanges usually are some sort of hobby computer club, you cannot rely on them to actually -work-, but when they do work that's "nice" (always make sure you have enough paid capacity to cover for it when they do not work however!) peering on only one of them therefore does not make your network more reliable in any way (it becomes a different story when you connect to like 10 or so worldwide). as for "peering" agreements, just implement an open peering policy (doesn't nessesarily have to take place over an ix, also applies to pieces of ethernet running from your network to others). those basically are contracts that force anyone who has also signed one to peer with your network, wether they like you or not (saves the trouble when you are a content provider and others do not want to peer with you because they provide content too and you are a competing party etc). -- HRH Sven Olaf Prinz von CyberBunker-Kamphuis, MP. Minister of Telecommunications, Republic CyberBunker. Phone: +49/163-4405069 Phone: +49/30-36731425 Skype: CB3ROB MSN: sven@cb3rob.net C.V.: http://www.linkedin.com/in/cb3rob Confidential: Please be advised that the information contained in this email message, including all attached documents or files, is privileged and confidential and is intended only for the use of the individual or individuals addressed. Any other use, dissemination, distribution or copying of this communication is strictly prohibited. On Wed, 29 Oct 2008, Paul Stewart wrote:
Thanks! That's a really good one and surprised myself I missed it..;)
_____________________________________________ From: Valdis.Kletnieks@vt.edu [mailto:Valdis.Kletnieks@vt.edu] Sent: Wednesday, October 29, 2008 3:28 PM To: Paul Stewart Cc: nanog@nanog.org Subject: Re: Peering - Benefits?
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On Wed, 29 Oct 2008 15:17:45 EDT, Paul Stewart said:
I can think of some but looking to develop a concrete list of appealing reasons etc. such as:
-control over routing between networks -security aspect (being able to filter/verify routes to some degree) -latency/performance
I'm surprised you didn't include "chance to pick up a redundant connection".
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