Large-Scale IP Network Solutions (CCIE Professional Development)
by Khalid Raza - CCIE, Mark Turner
Introduction to BGP
BGP was originally designed for routing between major service providers within the Internet, so it is considered an exterior routing protocol. A worthy successor to the now-obsolete Exterior Gateway Protocol (EGP), BGP is the “glue” that holds the modern Internet together. It has assumed that role since version 4 of the protocol (BGP4), which was deployed in 1993. Earlier versions of BGP—notably BGP3—were used on the NSFNET in the early 1990s.
As a protocol, BGP requires a great deal of manual configuration. This, along with its detailed design and considerable testing exposure on the Internet, has led to a stable and highly scalable implementation of the protocol. The level of BGP operational expertise is increasing, and ...
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