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A Tier 1 network is an Internet Protocol (IP) network that can reach every other network on the Internet solely via settlement-free interconnection (also known as settlement-free peering). [1] [2] Tier 1 networks can exchange traffic with other Tier 1 networks without paying any fees for the exchange of traffic in either direction. [3]
NSFNet Internet architecture, c. 1995. Internet exchange points began as Network Access Points or NAPs, a key component of Al Gore's National Information Infrastructure (NII) plan, which defined the transition from the US Government-paid-for NSFNET era (when Internet access was government sponsored and commercial traffic was prohibited) to the commercial Internet of today.
Tier 2 ISPs depend on Tier 1 ISPs and often have their own networks, but must pay for transit or internet access to Tier 1 ISPs, but may peer or send transit without paying, to other Tier 2 ISPs. Tier 3 ISPs do not engage in peering and only purchase transit from Tier 2 and Tier 1 ISPs, and often specialize in offering internet service to end ...
Net neutrality is the practice of keeping Internet service providers from offering tiered service and controlling the ability to block out competition by restricting certain pipelines within the Internet. By blocking these pipelines, the provider creates an unfair transfer of packets across the Internet, diminishing the quality of service.
Tier 1 ISPs are also characterized by being: Directly connected to each of the other tier-1 ISPs; Connected to a large number of tier-2 ISPs and other customer networks; International in coverage. Tier 1 ISPs are also known as Internet backbone networks. As of this writing, UUNet (a subsidiary of WorldCom) is the largest Tier 1 ISP; other major ...
A person usually only pays the copayment assigned to the tier. When a doctor or another healthcare professional prescribes a drug, the insurer informs the pharmacy of the drug’s tier. The ...
The Philippine Health Insurance Corporation (PhilHealth) is a tax-exempt, government-owned and controlled corporation (GOCC) of the Philippines that provides health insurance to the country. It was created on 1995 to implement universal health coverage in the Philippines, and is attached to the Department of Health. On August 4, 1969, Republic ...
Country: Uses ISO 3166-1 alpha-3 to display the country flag. City: A reference to a city article within Wikipedia. Name: Longname (Shortname). Entries flagged with an asterisk (*) do not appear in PeeringDB. IX-F region: IX-F region with which the IXP is associated. [1]