Point of presence

A point of presence (PoP) is an artificial demarcation point or network interface point between communicating entities. A common example is an ISP point of presence, the local access point that allows users to connect to the Internet with their Internet service provider (ISP).^[1] A PoP typically houses servers, routers, network switches, multiplexers, and other network interface equipment that connects an ISP to customers including OLTs (optical line terminals) for fiber internet,^[2] and is typically located in a data center. ISPs typically have multiple PoPs. PoPs are often located at Internet exchange points and colocation centres.^[3]

In the US, this term became important during the court-ordered breakup of the Bell Telephone system. A point of presence was a location where a long-distance carrier (IXC) could terminate services and provide connections into a local telephone network (LATA).^[4]

References

^ "Definition of Point of Presence (POP) in Network Encyclopedia". networkencyclopedia.com. 20 August 2019. Retrieved 2020-01-02.
^ Feknous, Moufida; Guyader, Bertrand Le; Varga, Pal; Gravey, Annie; Gosselin, Stéphane; Gijon, Jose Alfonso Torrijos (31 May 2015). "Multi-Criteria Comparison Between Legacy and Next Generation Point of Presence Broadband Network Architectures". Advances in Computer Science. 4 (3): 126–140.
^ Fernandes, James (2005). Academic Dictionary Of Internet. Isha Books. p. 316. ISBN 9788182052680.
^ Freeman, Roger (2005). Fundamentals of Telecommunications. Wiley. p. 16. doi:10.1002/0471720941.ch1. ISBN 978-0471710455.

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