8-1
Troubleshooting
8
Troubleshooting
This chapter addresses performance-related network problems that can be
caused by topology, switch configuration, and the effects of other devices or
their configurations on switch operation. (For switch-specific information on
hardware problems indicated by LED behavior, cabling requirements, and
other potential hardware-related problems, refer to the installation guide you
received with the switch.)
This chapter includes:
■ Troubleshooting Approaches (page 8-2)
■ Browser or Console Interface Problems (page 8-3)
■ Unusual Network Activity (page 8-5)
• General Problems (page 8-5)
• Automatic Broadcast Control Problems (page 8-6)
• IGMP-Related Problems (page 8-7)
• Switch Mesh Problems (page 8-7)
• STP-Related Problems (page 8-9)
• VLAN-Related Problems (page 8-10)
■ Using the Event Log To Identify Problem Sources (page 8-12)
■ Diagnostics and management tools (page 8-17), including:
• Link test (page 8-17)
• Ping test (page 8-18)
• Browse configuration (page 8-21)
• Command prompt (page 8-23)
• Restoring the factory default configuration (page 8-24)
For information on support and warranty provisions, see the Support and
Warranty booklet shipped with the switch.