3Com 5500-EI, 5500G-EI If you are having problems, refer to Solving Fabric Formation Problems on page 86.

Unit Numbering within the Fabric 79
Adding and removing units from the Fabric does not cause any
renumbering to occur and the Fabric will continue to work normally.
Renumbering only occurs when the Fabric is next power cycled if the
units are configured to auto-number.
The unit LEDs will display the unit number in the Fabric, from 1 to 8.
Figure 31 Resilient Fabric example (using 4 Switch 5500G-EI units)
Figure 32 Resilient Fabric example (using 4 Switch 5500-EI units)
If you are having problems, refer to “Solving Fabric Formation Problems”
on page 86.
STK
Stacking:Green=OK,FlashingGreen=Traffic,Yellow=LinkFault,Stacking:Green=OK,FlashingGreen=Traffic,Yellow=LinkFault,
YellowFlashing=StackFaultYellowFlashing=StackFault
STK
Caution:Thisdevicehasmore than one power input.
Dodisconnectallpowerinputs to power off this device.
Caution:Thisdevicehasmore than one power input.
Dodisconnectallpowerinputs to power off this device.
DCON DCON
STK
Stacking:Green=OK,FlashingGreen=Traffic,Yellow=LinkFault,Stacking:Green=OK,FlashingGreen=Traffic,Yellow=LinkFault,
YellowFlashing=StackFaultYellowFlashing=StackFault
STK
Caution:Thisdevicehasmore than one power input.
Dodisconnectallpowerinputs to power off this device.
Caution:Thisdevicehasmore than one power input.
Dodisconnectallpowerinputs to power off this device.
DCONDCON
STK
Stacking:Green=OK,FlashingGreen=Traffic,Yellow=LinkFault,Stacking:Green=OK,FlashingGreen=Traffic,Yellow=LinkFault,
YellowFlashing=StackFaultYellowFlashing=StackFault
STK
Caution:Thisdevicehasmore than one power input.
Dodisconnectallpowerinputs to power off this device.
Caution:Thisdevicehasmore than one power input.
Dodisconnectallpowerinputs to power off this device.
DCON DCON
STK
Stacking:Green=OK,FlashingGreen=Traffic,Yellow=LinkFault,Stacking:Green=OK,FlashingGreen=Traffic,Yellow=LinkFault,
YellowFlashing=StackFaultYellowFlashing=StackFault
STK
Caution:Thisdevicehasmore than one power input.
Dodisconnectallpowerinputs to power off this device.
Caution:Thisdevicehasmore than one power input.
Dodisconnectallpowerinputs to power off this device.
DCONDCON
Up Connector (Blue Label)
Down Connector (Yellow Label)
Stacking Port LED
10014925-AD_S5500_GSG.book Page 79 Thursday, August 16, 2007 12:29 PM