Cisco Nexus 5000 Series Switch Fabric Manager Software Configuration Guide, NX-OS 4.0 (OL-16598-01, June 2008)

CHAPTER
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31-1
Nexus 5000 Series Switch Fabric Manager Software Configuration Guide
OL-16598-01
31
Troubleshooting Your Fabric
This chapter describes basic troubleshooting methods used to resolve issues with switches. This chapter
contains the following sections:
• Troubleshooting Tools and Techniques, page 31-1
• Analyzing Switch Device Health, page 31-3
• Analyzing Switch Fabric Configuration, page 31-4
• Analyzing End-to-End Connectivity, page 31-5
• Using the Ping Tool (fcping), page 31-7
• Using Trace Route (fctrace) and Other Troubleshooting Tools, page 31-7
• Analyzing the Results of Merging Zones, page 31-8
• Using the Show Tech Support Command, page 31-9
• Running CLI Commands, page 31-11
• Locating Other Switches, page 31-12
• Fibre Channel Timeout Values, page 31-14
• Configuring a Fabric Analyzer, page 31-16
• Configuring World Wide Names, page 31-22
• Configuring a Secondary MAC Address, page 31-22
• FC ID Allocation for HBAs, page 31-23
• Default Settings, page 31-23
Troubleshooting Tools and Techniques
Multiple techniques and tools are available to monitor and troubleshoot Cisco switches. These tools
provide a complete, integrated, multilevel analysis solution.
Fabric Manager Server—The Cisco Fabric Manager Server provides a long-term, high-level view of
storage network performance. Fabric-wide performance trends can be analyzed using Performance
Manager. It provides the starting point for deeper analysis to resolve network hot-spots.
Device Manager—If a performance problem is detected with the Fabric Manager Server, use Cisco
Device Manager to view port-level statistics in real-time. Details on protocols, errors, discards, byte and
frame counts are available. Samples can be taken as frequently as every 2 seconds, and values can be
viewed in text form or graphically as pie, bar, area, and line charts.