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Catalyst 3550 Multilayer Switch Hardware Installation Guide
78-11358-03
Chapter 1 Product Overview
Front-Panel Description
Port LEDs and Modes
Each RJ-45 port and GBIC 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.
lists the mode LEDs and their associated port
mode and meaning.
To select or change a mode, press the Mode button (or Mode label on the
Catalyst 3550-48 switch) until the desired mode is highlighted. When you change
port modes, the meanings of the port LED colors also change.
explains
how to interpret the port LED colors in different port modes.
Table 1-7
Port Mode LEDs
Mode LED
Port Mode
Description
STATUS
Port status
The port status. This is the default mode.
UTIL
Switch utilization
The current bandwidth in use by the switch. (See Figure 1-12
through Figure 1-16.)
DUPLX
Port duplex mode
The port duplex mode: full duplex or half duplex.
SPEED
Port speed
The port operating speed: 10, 100, or 1000 Mbps.