TAILIEUCHUNG - BGP Route Reflectors and Route Filters

The International Travel Agency maintains a full-mesh IBGP network that has quickly scaled beyond 100 routers. The company wants to implement route reflectors to work around IBGP’s full-mesh requirement. You are asked to configure a small cluster and observe how BGP operates in this configuration. You also are asked to use IP prefix filters to control the updates between IBGP peers. | Lab BGP Route Reflectors and Route Filters Fa0 0 24 24 Objective In this lab you configure IBGP routers to use a route reflector and a simple route filter. Scenario The International Travel Agency maintains a full-mesh IBGP network that has quickly scaled beyond 100 routers. The company wants to implement route reflectors to work around IBGP s full-mesh requirement. You are asked to configure a small cluster and observe how BGP operates in this configuration. You also are asked to use IP prefix filters to control the updates between IBGP peers. Step 1 Build and configure the network according to the diagram and use RIP as the IGP. Do not configure the network. Use ping to test connectivity among all interfaces. Each router should have a complete routing table. Step 2 Configure the IBGP peers for BGP. SanJose3 will later be configured as the route reflector but first you must configure it to peer with both other routers as shown SanJose3 config router bgp 100 SanJose3 config-router neighbor remote-as 100 SanJose3 config-router neighbor remote-as 100 SanJose3 config-router no auto-summary SanJose3 config-router no synchronization SanJose3 config-router network After you configure SanJose3 you can configure the other two routers as route reflector clients. Remember that to set up clients you merely configure peering between the client and the server you don t need to configure an IBGP full mesh. 1 - 4 Semester 5 Advanced Routing - Lab Copyright 2001 Cisco Systems Inc. Issue the following commands on SanJosel SanJose1 config router bgp 100 SanJose1 config-router neighbor remote-as 100 SanJose1 config-router no auto-summary SanJose1 config-router no synchronization Issue the following commands on SanJose2 SanJose2 config router bgp 100 SanJose2 config-router neighbor remote-as 100 SanJose2 config-router no auto-summary SanJose2 config-router no synchronization

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