Cabletron Systems EMM-E6 User Manual

Page of 64
EMM-E6 Installation Guide
4-1
CHAPTER 4
TROUBLESHOOTING
This chapter provides diagnostic and troubleshooting information.
4.1
USING LANVIEW LED
S
The EMM-E6 uses the Cabletron Systems built-in visual diagnostic and 
status monitoring system called LANVIEW. With LANVIEW, you can 
quickly scan the EMM-E6 LEDs to observe network status or diagnose 
network problems.
NOTE
The STBY, RCV, XMT, and CLN LEDs are in a matrix, which 
provides these indicators for four of the EMM-E6 Ethernet 
channels. To read the LEDs, the vertical column indicates the 
interface or channel the LED designates, while the horizontal 
row denotes the condition or statistic being monitored.
Table 4-1
LANVIEW LED Messages 
LED
Color
Description
Error Condition/
Recommended Action
CPU
Green 
(Flashing)
Normal operation.
If the LED is not lit, the 
EMM-E6 may not be 
receiving power. See the 
Troubleshooting Checklist.
Red
CPU error condition.
Press the Reset switch on 
the EMM-E6 front panel to 
re-initialize the board. This 
may clear the error. If the 
board does not re-initialize, it 
has probably failed. Call 
Cabletron Systems Technical 
Support. 
ICH1Book  Page 1  Tuesday, August 6, 1996  3:06 PM