Cabletron Systems 3H02-04, 3H08-04 manual Connectivity Problems

Chapter 5: Diagnostics and Troubleshooting

5.5.2 Connectivity Problems

If the FE Switch Modules power up normally, but the workstations are unable to communicate:

1.Check the LED for abnormalities which may help indicate the source of the problem. (LED behavior during normal operation is explained earlier in this chapter.)

2.Check the status of the ports using Local Console Manager

3.Check for loose connections between the switch module and devices.

4.Check that the proper type of cable is used: crossover or straight-through, depending on the configuration; distance limitations are adhered to, etc. (For more information on other limitations or restrictions that may apply, see the IEEE 802.3 standards specification.)

Page 5-4 FE Switch Module User Guide