This module describes the basic tasks to configure a basic Border Gateway Protocol (BGP) network. BGP is an interdomain routing protocol that is designed to provide loop-free routing between organizations. This module also contains tasks to configure and customize BGP peers, implement BGP route aggregation, configure BGP route origination, and define BGP backdoor routes.
For this lab, I configure 4 routers. 2 routers in the Champlain system are IBGP neighbors. 2 routers in the Middlebury system are IBGP neighbors. Champlain and Middlebury are EBGP neighbors and different AS.