Internet backbone
The Internet backbone was the main network ( computer network ) that connected every part of the Internet . Today this term is used as a free term to describe the "core" of the current Internet.
history
The original internet backbone was the Arpanet . In 1986 the NSF Net-Backbone was founded, the US Army turned away as a separate MILNET network and the Arpanet was abolished. A plan was then developed to expand the NSFN backbone before it was surpassed by the invention of a new network architecture based on decentralized routing called a Network Access Point (NAP). After the shutdown of the NSFNet Internet backbone on April 30, 1995, the Internet now consists primarily of several commercial Internet service providers (ISPs) and private networks. The term Internet backbone is now mainly used freely to refer to the links between providers and to the peering points.
Overview
The internet backbone consists of many different networks. Typically this term is used to refer to large interconnected networks that have individual Internet Service Providers (ISPs) as clients . For example, a local ISP may serve a single city and be connected to a regional provider that owns multiple local ISPs. This regional provider is in turn connected to a backbone network that provides national or global connections.
These backbone providers usually offer their customers connection facilities in many cities, which in turn connect to other backbone providers through Internet nodes .