CCNP TSHOOT 6.0 - The Cisco Learning Network

CCNPv6 TSHOOT
Section 1—Trouble Tickets and Troubleshooting Logs
Task 1: Trouble Ticket Lab 7-1 TT-A
In this lab, the Cisco IOS command ttcp is used to simulate a heavy traffic load between switches ALS1 and
DLS2. The TTCP utility is a hidden, unsupported Cisco IOS command. This lab provides step-by-step
assistance for using Cisco IOS performance diagnostic commands and the TTCP utility.
Note: Appendix A contains additional information on how to set up a PC as a client end device for TTCP.
A recommended approach to this lab is to follow a troubleshooting process that includes the following highlevel
tasks:
• Generate test traffic using the ping or ttcp command, as described in this task.
• Use ping to measure the performance between the headquarters and branch office. For example,
ping from client PC-B to server SRV1.
• Examine the key performance indicators, such as interfaces, CPU, and memory on the routers, and
look for symptoms associated with performance problems.
• Examine the routers for features and configurations that deviate from the baseline configurations and
attempt to find the root cause of the problems.
• Address the issues causing the performance problems and test to verify that the performance has
improved.
Step 1: Review trouble ticket Lab 7-1 TT-A.
It is Monday morning and as soon as you enter your office at headquarters, you receive a call from your
colleague from the branch office (R3 LAN). She tells you that client (PC-B) applications report errors while
connecting to the corporate server (SRV1) for large file transfers (simulated by TTCP). Your colleague
suspects that there is performance degradation on the R3 router and has run some tests to verify this. She
also has the baseline performance tests to compare with.
Another colleague who works the night shift has full access to the branch office devices. You suspect he
might have made some configuration changes.
Your task is to diagnose the branch office problems and correct them.
Step 2: Load the device trouble ticket configuration files for TT-A.
Using the procedure described in Lab 3-1, verify that the lab configuration files are present in flash. Load the
proper configuration files as indicated in the Device Configuration File Table.
Note: The following device access methods are in effect after loading the configuration files:
• Console access requires no username or password.
• Telnet and SSH require username admin and password adminpa55.
• The enable password is ciscoenpa55.
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