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  2. Tier 1 network - Wikipedia

    en.wikipedia.org/wiki/Tier_1_network

    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]

  3. Technical support - Wikipedia

    en.wikipedia.org/wiki/Technical_support

    Tier I (or Level 1, abbreviated as T1 or L1) is the first technical support level. The first job of a Tier I specialist is to gather the customer's information and to determine the customer's issue by analyzing the symptoms and figuring out the underlying problem. [6]

  4. Chinese city tier system - Wikipedia

    en.wikipedia.org/wiki/Chinese_city_tier_system

    Many economists, consultants and businesses classify cities in China based on the tier system. [4] Businesses frequently refer to the tier system in, for example, devising marketing strategy, as it is understood that treating China as one market is simply not feasible: consumers from different regions and cities have vastly different income levels, behaviors, and trends. [5]

  5. Data centre tiers - Wikipedia

    en.wikipedia.org/wiki/Data_centre_tiers

    Tier III: full N+1 redundancy of all systems, including power supply and cooling distribution paths Tier IV : as Tier III, but with 2N+1 redundancy of all systems A Tier III system is intended to operate at Tier II resiliency even when under maintenance, and a Tier IV system is intended to operate at Tier III resiliency even when under maintenance.

  6. Ranally city rating system - Wikipedia

    en.wikipedia.org/wiki/Ranally_city_rating_system

    The Ranally city rating system is a tool developed by Rand McNally & Co. to classify U.S. cities based on their economic function. The system is designed to reflect an underlying hierarchy whereby consumers and businesses go to a city of a certain size for a certain function; some functions are widely available and others are only available in the largest cities.

  7. Internet backbone - Wikipedia

    en.wikipedia.org/wiki/Internet_backbone

    The company Level 3 Communications began to launch a line of dedicated Internet access and virtual private network services in 2011, giving large companies direct access to the tier 3 backbone. Connecting companies directly to the backbone will provide enterprises faster Internet service which meets a large market demand.

  8. Leagues Cup: Here's what's new about the 2025 tournament ...

    www.aol.com/leagues-cup-heres-whats-2025...

    The 2025 Leagues Cup will feature 18 of 30 MLS teams and all 18 clubs from LIGA MX, beginning July 29 to the Aug. 31 final. Tournament organizers announced the new format Thursday.

  9. Internet service provider - Wikipedia

    en.wikipedia.org/wiki/Internet_service_provider

    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 customers such as businesses and individuals. Some organizations act as their own ISPs and purchase transit directly from a Tier 1 ISP. [65]