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Page 4-1
CHAPTER 4
Troubleshooting
This chapter contains instructions for using LANVIEW LEDs to
troubleshoot physical layer network problems.
4.1 LANVIEW LED Signals
The STHI incorporates the Cabletron Systems LANVIEW Status
Monitoring and Diagnostics System. These LEDs can help in the diagnosis
of physical layer problems such as power failures or cable faults. Table 4-1
lists the LANVIEW LEDs and defines their messages:
Table 4-1. LANVIEW LED Signals
LED Color Condition
CPU blinking
Green
normal operations
Red malfunction
ACT Green
flash
normal frame received
Red
flash
Beacon Recovery running
16 Mb Yellow Ring Speed set to 16 Mbps.
off Ring Speed set to 4 Mbps.
MGMT Green management operational
Red management failure