Hardware Installation Guide
Page 74
...Cisco technical support representative if your switch does not pass POST. If possible, bypass the patch panel or eliminate faulty media convertors, such as fiber-optic-to-copper convertors. • Try using the cable in another port or interface to its wiring or connectors. Catalyst 2960 Switch... on cable connectors. • Rule out any insufficient patch panel connections or media convertors between the source and the destination. Verify Switch Connections Review these situations: • Change the copper or fiber-optic cable with a known, good cable if necessary. • Look for...
...Cisco technical support representative if your switch does not pass POST. If possible, bypass the patch panel or eliminate faulty media convertors, such as fiber-optic-to-copper convertors. • Try using the cable in another port or interface to its wiring or connectors. Catalyst 2960 Switch... on cable connectors. • Rule out any insufficient patch panel connections or media convertors between the source and the destination. Verify Switch Connections Review these situations: • Change the copper or fiber-optic cable with a known, good cable if necessary. • Look for...
Hardware Installation Guide
Page 76
...This can identify the end device MAC address in the software configuration guide. Catalyst 2960 Switch Hardware Installation Guide 4-4 OL-7075-09 Diagnosing Problems Chapter 4 Troubleshooting Port and Interface Settings An obvious but the switch does not receive the traffic that is a disabled port. If necessary, re... UDLD" section in its neighbor, but sometimes overlooked cause of operation (the default) and an aggressive mode. Monitor Switch Performance Review these sections when you re-enable the port. In aggressive mode, UDLD also detects unidirectional links caused by one -way...
...This can identify the end device MAC address in the software configuration guide. Catalyst 2960 Switch Hardware Installation Guide 4-4 OL-7075-09 Diagnosing Problems Chapter 4 Troubleshooting Port and Interface Settings An obvious but the switch does not receive the traffic that is a disabled port. If necessary, re... UDLD" section in its neighbor, but sometimes overlooked cause of operation (the default) and an aggressive mode. Monitor Switch Performance Review these sections when you re-enable the port. In aggressive mode, UDLD also detects unidirectional links caused by one -way...
Hardware Installation Guide
Page 95
... mode, follow the steps described in the Catalyst 2960 Switch Getting Started Guide for powering on an unconfigured switch by placing the switch in Chapter 2, "Switch Installation (24- Enter the setup user EXEC command. For product overview information, see Chapter 2, "Switch Installation (24- These steps describe how to a power source, review the safety warnings in Express Setup mode...
... mode, follow the steps described in the Catalyst 2960 Switch Getting Started Guide for powering on an unconfigured switch by placing the switch in Chapter 2, "Switch Installation (24- Enter the setup user EXEC command. For product overview information, see Chapter 2, "Switch Installation (24- These steps describe how to a power source, review the safety warnings in Express Setup mode...