Idle EBGP Session

Scenario: As lead network administrator for the International Travel Agency ITA, you and your staff are responsible for WAN connectivity.. After struggling for several hours, one of you

1-2 Semester 8 Internetwork Troubleshooting v1.0 - Lab 14.3.1 Copyright  2001, Cisco Systems, Inc

Lab 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 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