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A Tier 2 network is an Internet service provider which engages in the practice of peering with other networks, but which also purchases IP transit to reach some portion of the Internet.
Tier 2 providers are the most common Internet service providers as it is much easier to purchase transit from a Tier 1 network than it is to peer with them and attempt becoming a Tier 1 carrier.
The term Tier 3 is sometimes also used to describe networks who solely purchase IP transit from other networks to reach the Internet.
Video Tier 2 network
List of large or important Tier 2 networks
Maps Tier 2 network
See also
- Peering point
- Network Access Point
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References
Source of the article : Wikipedia
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