Appendix B Recommended Tools and Test Equipment
Testing with Network Analyzers
Testing with Network Analyzers
Use network analyzers (also called protocol analyzers) to decode protocol layers in a recorded frame and present the layers as readable abbreviations or summaries, detailing which layer is involved (physical, data link, and so forth) and the function each byte or byte content serves.
Most network analyzers can perform many of the following functions:
•Filter traffic that meets certain criteria so that, for example, all traffic to and from a particular device can be captured.
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•Present protocol layers in an easily readable form.
•Generate frames and transmit them onto the network.
•Incorporate an “expert” system in which the analyzer uses a set of rules, combined with information about the network configuration and operation, to diagnose and solve, or offer potential solutions to, network problems.
Cisco uBR10012 Universal Broadband Router Troubleshooting Guide
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