Chapter 9: Scaling BGP 
Labs:
9.7.1 In this lab, you configure IBGP routers to use a route reflector and a simple route filter.
9.7.2 In this lab, you use the COMMUNITIES attribute to enforce routing policy.
9.7.3 In this lab, you use BGP peer groups to simplify your configuration tasks.
9.8.1 Configure EBGP between the company's core routers and the two ISP routers, and configure IBGP with peers to create a network that will provide the International Travel Agency with a fully meshed, reliable, and efficient core network.
Interactive Labs:
9.1.4 In this lab you will configure IBGP routers to use ISP-B as a route reflector to work around IBGP's full-mesh requirements. All routers are already configured for IP and RIP. IBGP peer information has also been configured on all routers.