CHAPTER
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66-1
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
66
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 66-1
• Analyzing Switch Device Health, page 66-3
• Analyzing Switch Fabric Configuration, page 66-4
• Analyzing End-to-End Connectivity, page 66-5
• Using the Ping Tool (fcping), page 66-7
• Using Traceroute (fctrace) and Other Troubleshooting Tools, page 66-7
• Analyzing the Results of Merging Zones, page 66-8
• Using the Show Tech Support Command, page 66-9
• Running CLI Commands, page 66-10
• Locating Other Switches, page 66-12
• Getting Oversubscription Information in Device Manager, page 66-14
• Fibre Channel Time Out Values, page 66-14
• Configuring a Fabric Analyzer, page 66-17
• Configuring World Wide Names, page 66-23
• Configuring a Secondary MAC Address, page 66-23
• FC ID Allocation for HBAs, page 66-24
Troubleshooting Tools and Techniques
Multiple techniques and tools are available to monitor and trouble shoot the Cisco MDS 9000 Family of
switches. These tools provide a complete, integrated, multi-level 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 changes.
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