CONFIGURATIONS WITH CUSTOMER
Like other routing protocols, BGP uses the concept of a stub. The stub is a network that does not pass-through traffic; it acts as a source and sink for the traffic (it sends or receives traffic). In Figure 7-3, the customer network is a stub.
Figure 7-3. Configurations with Customer [HALA97]
It has been noted in this book that an External Gateway Protocol (EGP) is designed to operate between autonomous systems (AS), and an internal gateway protocol operates within an autonomous system (AS). But what about the operations between an AS (say, an ISP) and a customer? Three methods are used to support this interface, shown ...
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