Point of presence
A point of presence (PoP) is an artificial demarcation point or interface point between communicating entities. A common example is an Internet point of presence, the local access point that allows users to connect to the Internet with their Internet service provider (ISP). A PoP typically houses servers, routers, network switches, multiplexers, and other network interface equipment, and is typically located in a data center. ISPs typically have multiple PoPs. PoPs are often located at Internet exchange points and colocation centres.
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).
- "Definition of point of presence (POP) in The Network Encyclopedia". thenetworkencyclopedia.com. Retrieved 2018-08-10.
- Fernandes, James (2005). Academic Dictionary Of Internet. Isha Books. p. 316. ISBN 9788182052680.
- Freeman, Roger (2005). Fundamentals of Telecommunications. Wiley. p. 720. ISBN 978-0471710455.