Changes between Version 2 and Version 3 of understanding_colo_issues
- Timestamp:
- Jun 18, 2008, 10:53:35 AM (16 years ago)
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understanding_colo_issues
v2 v3 9 9 === Types of Networks === 10 10 11 Tier one networks (see [WikiPedia:Tier_1_carrier Wikipedia's article ) are networks that connect to the rest of the Internet soley through "Settlement Free Interconnection" (meaning that they can directly connect to the other Tier one networks - called "peering," not relying on a intermediary provider). Wikipedia lists some interesting reasons why these carriers are less reliable because they often only have one route to each other network. Examples of Tier One networks are Global Crossing, Level Three, and AT&T.11 Tier one networks (see [WikiPedia:Tier_1_carrier Wikipedia's article]) are networks that connect to the rest of the Internet soley through "Settlement Free Interconnection" (meaning that they can directly connect to the other Tier one networks - called "peering," not relying on a intermediary provider). Wikipedia lists some interesting reasons why these carriers are less reliable because they often only have one route to each other network. Examples of Tier One networks are Global Crossing, Level Three, and AT&T. 12 12 13 Tier two networks (see [WikiPedia:Tier_2_network Wikipedia's article ) rely on purchasing transit from one or more Tier one networks.13 Tier two networks (see [WikiPedia:Tier_2_network Wikipedia's article]) rely on purchasing transit from one or more Tier one networks. 14 14 15 15 In addition, I've heard people refer to carrier's like Hurricane Electric as "blending" connectivity from many other providers.