Editing Point of presence

{{Short description|Type of network boundary}}
{{Use British English|date=January 2019}}
{{Refimprove|date=July 2013}}

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).<ref>{{cite web|url=https://networkencyclopedia.com/point-of-presence-pop/|title=Definition of Point of Presence (POP) in Network Encyclopedia|website=networkencyclopedia.com |access-date=2020-01-02}}</ref> A PoP typically houses [[server (computing)|server]]s, [[router (computing)|router]]s, [[network switch]]es, [[multiplexer]]s, and other network interface equipment that connects an ISP to customers including OLTs ([[optical line terminal]]s) for [[FTTH|fiber internet]],<ref>https://www.acsij.org/index.php/acsij/article/view/106</ref> and is typically located in a [[data center]]. ISPs typically have multiple PoPs. PoPs are often located at [[Internet exchange point]]s and [[colocation centre]]s.<ref>{{cite book|last=Fernandes|first=James|title=Academic Dictionary Of Internet|year=2005|publisher=Isha Books |isbn=9788182052680 |pages=316|url=https://books.google.com/books?id=f-_Y4nG_QegC&pg=PA229}}</ref>

In the US, this term became important during the [[Modification of Final Judgment|court-ordered breakup of the Bell Telephone system]].  A point of presence was a location where a [[interexchange carrier|long-distance carrier (IXC)]] could terminate services and provide connections into a local telephone network ([[local access and transport area|LATA]]).<ref name=FreemanTelcoFundamentals>{{cite book|last=Freeman|first=Roger|title=Fundamentals of Telecommunications|year=2005|publisher=[[Wiley (publisher)|Wiley]]|isbn=978-0471710455|pages=16|url=https://books.google.com/books?id=6_yQ-dEGc5wC&q=%22point+of+presence%22|doi=10.1002/0471720941.ch1}}</ref>

== See also ==
* [[Cable headend]]
* [[Content delivery network]]
* [[Meet-me room]]
* [[Telephone exchange]]
* [[Web cache]]

== References ==
{{Reflist}}

{{DEFAULTSORT:Point Of Presence}}
[[Category:Telecommunications infrastructure]]


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