Troubleshooting guide

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Cisco Broadband Local Integrated Services Solution Troubleshooting Guide
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Chapter 8 Troubleshooting the Cisco Catalyst 6509
Before exchanging the switch hardware you might try a few things:
• Reseat the module in the switch. If you do this with the power on, make sure the module is hot
swappable. If in doubt, turn the switch off before reseating the module or refer to the hardware
installation guide. If the port is built in to the switch, ignore this step.
• Reboot the switch. Sometimes this causes the problem to disappear; this is a workaround, not a fix.
• Check the switch software. If this is a new installation, remember that some components may only
work with certain releases of software. Check the release notes or the hardware installation and
configuration guide for the component you are installing.
• If you are reasonably certain that you have a hardware problem, then replace the faulty component.
Before Calling the Cisco Systems TAC Team
Before calling the Cisco Systems Technical Assistance Center (TAC), make sure you have read through
this chapter and completed the actions suggested for your system’s problem. Additionally, do the
following and document the results so that TAC personnel can better assist you:
• Capture the output of show version from all of the affected switches.
• Capture the output of show vtp domain from all of the affected switches.
• Capture the output of show trunk mod_num/port_num from all of the affected ports.
• Capture the output of show port mod_num/port_num capabilities from all of the affected ports.