Chapter 2 Product Overview
Front Panel Description
2-12
Catalyst 3750 Switch Hardware Installation Guide
78-15136-02
Stack LED
The stack LED shows the sequence of member switches in a stack. Up to nine
switches can be members of a stack. The first nine port LEDs show the position
of a switch in a stack.
Figure 2-7
shows a magnified view of the LEDs on the first
switch, which is member number 8 of the stack. For example, if you press the
Mode button to select the stack member on this switch, the port LED 8 flashes
green because this represents the member number of this switch. The port
LEDs 3 and 4 are solid green, as these represent the member numbers of other
switches in the stack. The other port LEDs are off because there are no more
members in the stack.
When the stack LED is selected, the representative stack LEDs are green when
the StackWise ports (on the switch rear panel) are up, and the representative stack
LEDs are amber when the ports are down:
•
SFP port LEDs 1 and 2 on the Catalyst 3750-24TS switch show the status for
StackWise ports 1 and 2, respectively.
SPEED
10/100 and 10/100/1000 ports
Off
Port is operating at 10 Mbps.
Green
Port is operating at 100 Mbps.
Flashing green
Port is operating at 1000 Mbps.
SFP ports
Off
Port is operating at 10 Mbps.
Green
Port is operating at 100 Mbps.
Flashing green
Port is operating at 1000 Mbps.
Note
When installed in Catalyst 3750 switches, 1000BASE-T
SFP modules can operate at 10, 100, or 1000 Mbps in
full-duplex mode or in half-duplex mode at 10 or 100 Mbps.
STACK
(stack member)
Off
No stack member corresponding to that member number.
Flashing Green Selected switch’s member number.
Green
Member number of other stack member switches.
Table 2-5
Meaning of LED Colors in Different Modes on the Switch (continued)
Port Mode
LED Color
Meaning
Содержание 2651XM-V
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