CHAPTER 6
TROUBLESHOOTING
This chapter contains instructions for using LANVIEW LEDs to troubleshoot physical layer network problems. It also describes how to reset the SEHI and how to reset the NVRAM switch.
6.1INSTALLATION TEST
After connecting the SEHI to the network, verify that packets pass between all Ethernet devices connected to the SEHI and any other devices connected to the network. If there is a problem with any of the attached devices, check the link as follows:
1.Check that the LNK LED, if applicable, for the port is on. If the LED is off, perform each of the following steps until the LED is on:
a.Check that the
b.Verify that the connector on the twisted pair segment has the proper pinouts. Refer to Chapter 3 for the pin assignments for twisted pair connectors.
c.For the
d.Check the cable for continuity. Several tools are available for this test, depending on the media used.
e.Check that the twisted pair segments or fiber optic segments meet cable specifications as described in Chapter 3.
SEHI100TX User’s Guide |