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patcat88
join:2002-04-05
Jamaica, NY
kudos:1 | reply to Ignite
Re: peering said by Ignite:I'm not sure what you mean by 'balance' data centres are asymmetrical in their traffic flows, consumer ISPs with any sense will be happy to peer with you, just as your traffic will largely be upstream, serving from customer servers to ISPs, so the majority of their traffic remains downstream so the imbalance is a non-issue. Consumer ISPs don't have to peer with you, they get a nearly free connection from a Tier 1 so the Tier 1 can have monopoly power by having alot of end users to make peering connections unbalanced, and then paid. Verizon Wireless, and formerly Time Warner Cable (before Adelphia purchase), are/were exclusively Level 3. No other upstreams on their ASN.
If 'balance' were such an issue someone like Giganews would get nowhere, vastly asymmetrical traffic pattern, yet they are the largest customer of AmsIX.
Peering doesn't have to be private either, you guys should really work harder at peering exchanges / public peering, you've none in the top 10 for data transfer, this should be resolved.
Tier 1s never exchange traffic through the Internet Exchanges ASN, Tier 1s only do one on one negotiated peering. »www.ams-ix.net/connected/ All the Tier 1s are "closed", "not public", etc. Giganews (your example) would never be able to free peer with Tier 1s, anywhere. The only things Tier 1s use IXs is for is to easily sell IP transit to hosters, and remove loop costs for free/paid one on one peering links. | |
 IgnitePremium,VIP
join:2004-03-18
UK | Well I guess in the US consumer ISPs don't have to peer with you, here and in Europe they do tend to have fairly extensive peering matrices. The idea of a reasonable size cable company using a single upstream provider is utterly insane.
No-one exchange traffic through exchange's ASNs - they connect directly over switching fabrics not at layer 3 so the IX's ASN isn't involved. I'm aware T1s are closed and don't publically peer, however I'm not talking about that small amount of T1s I'm talking about everyone else. Giganews I would imagine have a good reason for having 40Gbps (more now) of bandwidth at AmsIX. Even at a few dollars a Mbps/month that's a not inconsiderable amount of money.
I don't understand the tier 1 focussed mindset, one peers as much as possible via IXs, where economical using dark fibre to extend reach to IXs, and then uses tier 1s to hoover up remaining prefixes. I don't understand any ISP relying solely on transit.
Every provider I have worked for peered as widely as possible, only turning down peering where there was no business case.
Here's the peering for 2 ISPs I have worked for. I am astounded that Adelphia would rely on 1 provider.
»www.db.ripe.net/whois?form_type=···t=Search
»www.db.ripe.net/whois?form_type=···t=Search | |
patcat88
join:2002-04-05
Jamaica, NY
kudos:1 | This is my TWC ASN. »fixedorbit.com/AS/12/AS12271.htm
Notice Level 3 is the only upstream, other than the Adelphia ASN.
Here is that Adelphia ASN »fixedorbit.com/AS/7/AS7843.htm , it peering looks normal and diverse.
Here is Verizon Wireless, even though it looks like alot of upstreams, tracert shows that not all of the links are used, it will pick Level 3 over XO, even when XO has a route to the destination, there were less upstreams only 3 years ago (last I checked).
»fixedorbit.com/AS/6/AS6167.htm | |
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