Cabletron Systems SEHI100TX-22 - Manual (Page 46)

Chapter 6: Troubleshooting
6-4 SEHI100TX User’s Guide
CPU
This LED alternates from red to green to during power up. After the boot
is complete, the LED blinks green. A blinking green LED indicates
normal operation. A red LED indicates a faulty processor.
CLN
When this red LED flashes, it indicates that a collision has occurred on
one of the ports.
RCV
When a yellow RCV LED flashes, it indicates that the SEHI is receiving
data packets from the associated port segment. Each SEHI port has a
corresponding RCV LED:
• Network Ports: RCV LEDs 1-22
• EPIM 1: RCV LED E
• Management: RCV LED A
LNK
When a green LNK LED is on, it indicates an established link between
the associated port and the device at the other end of the segment. The
LNK LED remains on as long as a link is maintained. Each SEHI
Network Port (ports 1 through 22) has a corresponding LNK LED.
6.3 USING THE RESET BUTTON
The SEHI incorporates a recessed RESET button. See Figure 6-1. The
RESET button initializes the SEHI processor. This button does NOT
initialize Non-Volatile Random Access Memory (NVRAM), the
nonvolatile random access memory where the SEHI stores network
management parameters.
To use the RESET button, use a pen or pencil to press the button. When
this is done, the SEHI initializes itself.
NOTE
All modules in a stacked configuration reset when the SEHI is
reset.