Cabletron Systems FDDI User Manual
Chapter 4: Troubleshooting
7F06-02 FDDI SmartSwitch Interface Module User’s Guide
4-3
Green
Off
Green
Green
THRU B, MAC on Secondary,
Primary Bypasses Board
Primary Bypasses Board
Green
Yellow
Green
Green
THRU B, MAC on Secondary,
No MAC on Primary
No MAC on Primary
Green
Yellow
Off
Green
THRU, No MAC on Primary,
Secondary Bypasses Board
Secondary Bypasses Board
Green
Off
Yellow
Green
THRU, No MAC on Secondary,
Primary Bypasses Board
Primary Bypasses Board
Green
Green
Red
Yellow
WRAP A, MAC on Primary
Green
Yellow
Red
Yellow
WRAP A, No MAC on Primary
Yellow
Green
Red
Green
WRAP B, MAC on Primary
Yellow
Yellow
Red
Green
WRAP B, No MAC on Primary
Green
Green
Red
Green
WRAP AB, MAC on Primary
Green
Off
Off
Green
BYPASS Primary & Secondary
Green
Red
Red
Green
TWISTED A-A, B-B
Yellow
Off
Off
Yellow
PCM did not complete, Not
Active
Active
Red
Off
Off
Red
Ports Disabled
Table 4-3
Link LEDs (Continued)
A
P
S
B
State