TAILIEUCHUNG - Troubleshooting Frame Relay 1

A new Frame Relay connection was installed between London and Singapore over the weekend. On Monday, both network operators at London and Singapore call to let you know they are unable to reach each other with this new Frame Relay connection. You check connectivity between the London router and the Singapore router and find you cannot ping or telnet between the sites. It is your responsibility to get London and Singapore communicating. | Lab Troubleshooting Frame Relay 1 S0 0 DLCI 18 2 1 DLCI 17 S0 0 1 2 Singapore London Fa0 0 24 Fa0 0 24 Atlas 550 24 Frame Relay Objective Apply the troubleshooting method to a simple Frame Relay network problem. Scenario A new Frame Relay connection was installed between London and Singapore over the weekend. On Monday both network operators at London and Singapore call to let you know they are unable to reach each other with this new Frame Relay connection. You check connectivity between the London router and the Singapore router and find you cannot ping or telnet between the sites. It is your responsibility to get London and Singapore communicating. Adtran Atlas 550 Note If using the Adtran Atlas 550 as your Frame Relay switch you will see information about DLCIs such as DLCI 16 that are not shown in sample outputs of this lab. These DLCIs are configured on the Atlas 550 but are not being used for this specific lab. You would not normally see these extra DLCIs so any information pertaining to them should be disregarded for this lab. Step 1 Cable the lab as shown in the diagram. Load the configuration file called into the London router. Load the file called Lab8-3-4-1- into the Singapore router. 1-10 Semester 8 Internetwork Troubleshooting - Lab Copyright 2001 Cisco Systems Inc. Step 2 Use ping and telnet to check connectivity between London and Singapore. All ping and telnet attempts from either site to the other should fail. From each router ping its directly connected LAN interface. This ping should be successful. 1. Define the problem you are experiencing. Step 3 Gather the facts about the situation at hand. The commands listed below are useful for gathering factual information about each router. show interfaces show frame-relay Imi show frame-relay pvc show frame-relay map Gather information about the London router first. Console into the

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