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1). CCNP Certification / BSCI Exam Tutorial: The BGP Neighbor Process By : Chris Bryant, CCIE #12933
Like TCP, BGP is connection-oriented. An underlying connection between two BGP speakers is established before any routing information is exchanged. This connection takes place on TCP port 179. As with EIGRP and OSPF, keepalive messages are sent out by the BGP speakers in order to keep this relationship alive.
Once the connection is established, the BGP speakers exchange routes and synchronize their tables.
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2). Cisco CCNP / BSCI Certification: BGP Route Reflector Tutorial By : Chris Bryant, CCIE #12933
When you're studying for your BSCI exam and CCNP certification, you quickly realize that BGP is a whole new world from anything you've previously studies. One topic that sometimes confuses CCNP candidates is when a BGP route reflector needs to be configured.
In the following example, the routers R1, R2, and R3 are all in BGP AS 100. This is not a full mesh, however.
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