Enterasys Matrix 7GR4202-30, Hardware Installation Manual

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Matrix DFE-Diamond Series Installation Guide 4-1
4
Troubleshooting
This chapter provides information concerning the following:
Using LANVIEW
The modules use a built ‐ in visual diagnostic and status monitoring system called LANVIEW. The
LANVIEW LEDs ( Figure 4 ‐ 1 ) allow quick observation of the network status to aid in diagnosing
network problems.
About the Management (MGMT) LED
The MGMT LED (shown in Figure 4 ‐ 1 ) indicates when the module is serving as the Management
Module to control the management functions for all DFE modules in the chassis. The Management
Module handles all IP requests to the chassis IP address, such as PING, Telnet, SNMP, or HTTP.
The Management Module also handles the CLI configuration sessions via the console port. So,
when you plug into a DFE module COM port to configure a DFE module in the chassis, it is
handled by the Management Module regardless of the DFE module COM port that you use.
Viewing the Receive and Transmit Activity
On the 7GR4270 ‐ 12 , 7GR4202 ‐ 30, and 7GR4280 ‐ 19 DFE modules, you can view the receive and
transmit activity on the RX and TX LEDs. However, only one group of six ports may be viewed at
a time on the 7GR4280 ‐ 19.
To view the receive and transmit activity on a group of 7GR4280 ‐ 19 segments, press the GROUP
SELECT button (see Figure 4 ‐ 1 ) for less than one second to step to the group of interest (Groups 1
through 3). Each time the GROUP SELECT button is pressed for less than one second, the GROUP
LED lights up in sequence, indicating which group is selected. The receive and transmit activity
for that group of segments is then indicated by the RX and TX LEDs for each port.
For information about... Refer to page...
Using LANVIEW 4-1
Troubleshooting Checklist 4-4
Overview of DFE Module Shutdown Procedure 4-5
Recommended Shutdown Procedure 4-6
Last Resort Shutdown Procedure 4-7