TAILIEUCHUNG - Dial-up Upgrade

As the WAN engineer for your company, International Travel Agency (ITA), you are responsible for intersite and Internet connectivity. Regular monitoring of traffic patterns between the London regional site and company headquarters in San Jose predicts saturation of the 64Kb/s link within the next six months. To avoid problems due to congestion, you upgrade to a router and link supporting ISDN BRI. The ISDN line has been provisioned and all configurations are complete. London and San Jose engineers report that after several hours, they have not succeeded in establishing an ISDN call between sites. You have been requested to assist in troubleshooting | Lab Dial-up Upgrade SanJose3 .3 Fa0 0 .3 24 4 1 BRI0 0 51055512340001 51055512350001 4 2 BRI0 0 51055540000001 51055540010001 ISDN Atlas 550 24 London .7 Fa0 0 .1 24 Objective Place an ISDN BRI to ISDN BRI call from a regional site to the company central site. Scenario As the WAN engineer for your company International Travel Agency ITA you are responsible for intersite and Internet connectivity. Regular monitoring of traffic patterns between the London regional site and company headquarters in San Jose predicts saturation of the 64Kb s link within the next six months. To avoid problems due to congestion you upgrade to a router and link supporting ISDN BRI. The ISDN line has been provisioned and all configurations are complete. London and San Jose engineers report that after several hours they have not succeeded in establishing an ISDN call between sites. You have been requested to assist in troubleshooting. Step 1 Cable the lab as shown in the diagram. Load the and configuration files. Step 2 Start by turning on debug dialer and debug isdn events while attempting to ping the remote router. 1-2 Semester 8 Internetwork Troubleshooting - Lab Copyright 2001 Cisco Systems Inc. Step 3 Based on the output of the previous commands what are some possible reasons an ISDN call cannot be established between London and SanJose3 What is your action plan to resolve the problem and establish ISDN connectivity between London and SanJose3 Step 4 Implement your action plan and observe results pinging the remote router with debug dialer and debug isdn events enabled. Step 5 Document your work with summary of problem troubleshooting methods and resolution. 2-2 Semester 8 Internetwork Troubleshooting - Lab Copyright 2001 Cisco Systems .

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