Cisco Systems 520 manual Troubleshoot Connections to the Switch

Chapter 7 Troubleshooting the Switch

Troubleshoot Connections to the Switch

Troubleshoot Connections to the Switch

Here are some basic troubleshooting for problems related to connections to the switch.

•Switch and Other Device Are Not Communicating, page 7-5

•Cisco IP Phones Continually Disconnect, page 7-5

Switch and Other Device Are Not Communicating

To resolve problems related to connectivity between the switch and other devices, again follow the procedures in Chapter 3, “Installing the Switch,” and Chapter 4, “Connecting to the Switch.” Follow the steps carefully, and review the troubleshooting tips included in the steps. Make sure that you review the warnings and guidelines provided in these chapters. Additional guidelines that you should review are in Appendix A, “Reference.”

Cisco IP Phones Continually Disconnect

If connected IP phones continually disconnect, make sure that you are using an undamaged Category 5 straight-through cable, not a crossover cable, to connect each IP phone to the switch.

If the problem persists, upgrade the switch through the Cisco Configuration

Assistant.

	User Guide for the Catalyst Express 520 Switches
OL-12761-02		7-5