It is off when there is no activity. Disabled This LED is on when the port is disabled or suspended. This LED is on when the port is operating in full-duplex mode. When off, the port is operating in half-duplex mode. Catalyst 2100's current and peak bandwidth use in Mbps.
Current bandwidth is shown with a series of lit LEDs topped by a rapidly blinking one.
Table 1-1 shows the bandwidth associated with each of the 10 LEDs. The reset switch should only be used if Catalyst 2100 does not respond to network management or packet forwarding has stopped. Resetting a Catalyst 2100 has the same effect as turning it off and on. The reset switch is located below the power LED on the Catalyst 2100 front panel as shown in Figure 1-3 . Reset the Catalyst 2100 by inserting an unbent paper clip into the hole.