1-2 Semester 8 Internetwork Troubleshooting v1.0 - Lab 14.3.1 Copyright 2001, Cisco Systems, Inc. Lab 14.3.1: IdleEBGPSession AS200 Fa0/0 10.1.1.2/24 S0/0 DCE .1 .2 S0/0 Fa0/0 192.168.0.1/24 AS100 ISP1A SanJose1 10.0.0.0/30 Objective Successfully create EBGP neighbor relationship. Scenario: As lead network administrator for the International Travel Agency (ITA), you and your staff are responsible for WAN connectivity. The chosen service provider requires BGP to be configured on your border router. ITA is assigned autonomous system number 100. After struggling for several hours, one of your engineers asks for your assistance in troubleshooting the new WAN link. Step 1 Cable the lab as shown in the diagram. Load the ‘broken’ configuration files into the routers. 2-2 Semester 8 Internetwork Troubleshooting v1.0 - Lab 14.3.1 Copyright 2001, Cisco Systems, Inc. Step 2 Start by viewing session information between EBGP neighbors. Issue show ip bgp neighbors and record your findings: Step 3 Issue debug ip bgp and record your findings: Step 4 Based on the output, what is preventing SanJose1 and ISP1A from forming a successful BGP peering session? What is the cause of the symptom(s)? What is your action plan to correct the problem? Implement your action plan. Issue show ip bgp neighbor and debug ip bgp again to observe the results. Step 5 Document your work with summary of problem, troubleshooting methods and resolution. . 14.3.1: Idle EBGP Session AS200 Fa0/0 10.1.1.2/24 S0/0 DCE .1 .2 S0/0 Fa0/0 192.168.0.1/24 AS100 ISP1A SanJose1 10.0.0.0/30 Objective Successfully create EBGP. Copyright 2001, Cisco Systems, Inc. Step 2 Start by viewing session information between EBGP neighbors. Issue show ip bgp neighbors and record your findings: