DES-3326S Layer 3 Fast Ethernet Switch User’s Guide
38
Identifying External Components
Figure 3-13. Stacking Module LED Indicators
The
Link
and
Act
LEDs have the same function as the
corresponding LEDs for the switch’s Ethernet ports. The
Link
LED lights to confirm a valid link, while the
ACT
LED blinks to
indicate activity on the link.
The
Stack No.
seven-segment LED displays the Unit number
assigned to the switch. A
0
(a
zero
) in the display indicates
that the stacking module is in the process of determining the
stack status and has not yet resolved the switch’s Unit number.
The stacking order can be automatically configured using the
switch’s MAC address
−
the lower the numerical value of a
given switch’s MAC address, the lower the number in the
stacking order the switch will be assigned. The switch with the
lowest MAC address, will then become the Master Switch. This
is the Stacking Module’s default mode.
Alternatively, the stacking order can be manually assigned
using the console’s Command Line Interface (CLI).