figure 2-6 shows the catalyst 3750-24ts, 3750g-24t, 3750g-24ts, 3750g-12s, and 3750-48ts leds and the mode button that you use to select one of the port modes.
all of the leds described in this section are visible on the cluster management suite (cms) home page. the switch software guide describes how to use cms to configure and monitor individual switches and switch clusters.
figure 2-6 catalyst 3750 leds
system led
the system led shows whether the system is receiving power and is functioning properly. table 2-1 lists the led colors and their meanings.
table 2-1 system led
for information on the system led colors during power-on self-test (post), see the “connecting to the 10/100 and 10/100/1000 ports” section on page 3-44.
rps led
the rps led shows the rps status. table 2-2 lists the led colors and their meanings.
table 2-2 rps led
for more information about the cisco rps 300, refer to the cisco rps 300 redundant power system hardware installation guide. for more information about the cisco rps 675, refer to the cisco rps 675 redundant power system hardware installation guide.
the cisco rps 300 does not support the catalyst 3750g-24ts switches.
master led
the master led shows the stack master status. table 2-2 lists the led colors and their meanings.
table 2-3 master led
each rj-45 port and sfp module slot has a port led. these port leds, as a group or individually, display information about the switch and about the individual ports. the port modes determine the type of information displayed through the port leds. table 2-4 lists the mode leds and their associated port mode and meaning.
to select or change a mode, press the mode button until the desired mode is highlighted. when you change port modes, the meanings of the port led colors also change. table 2-5 explains how to interpret the port led colors in different port modes.
if your switches are stacked and you press the mode button on any one of the switches in the stack, all the switches in the stack change to display the same selected mode. for example, if you press the mode button on the stack master to display speed, all the other switches in the stack also display speed.
table 2-4 port mode leds
table 2-5 meaning of led colors in different modes on the switch
table 2-5 meaning of led colors in different modes on the switch (continued)
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:
1?sfp port leds 1 and 2 on the catalyst 3750-24ts switch show the status for stackwise ports 1 and 2, respectively.
2?sfp port leds 3 and 4 on the catalyst 3750-48ts switch show the status for stackwise ports 1 and 2, respectively.
3?sfp port leds 27 and 28 on the catalyst 3750g-24ts switch show the status for stackwise ports 1 and 2, respectively.
4?the 10/100/1000 port leds 23 and 24 on the catalyst 3750g-24t switch show the status for stackwise ports 1 and 2, respectively.
5?sfp port leds 11 and 12 on the catalyst 3750g-12s switch show the status for stackwise ports 1 and 2, respectively.
if both the port leds are green on all the switches in the stack, the stack is operating at full bandwidth (32 gbps). if any of the port leds are not green, the stack is not operating at full bandwidth.
