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Instructor: Lawrence Landweber,Jun Murai
No. 20 11/08/1999
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Border Routers
Each AS has
one or more border routers that connect to adjacent ASs and route packets to and receive packets from these ASs
one or more border routers that serve as the speakers for the AS. Speakers are responsible for running the BGP routing protocol
The speakers communicate with border routers in adjacent ASs, using TCP
Message types: OPEN, KEEPALIVE, UPDATE, NOTIFICATION (errors)