Cisco Catalyst 3550

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Catalyst 3550 Multilayer Switch Hardware Installation Guide
78-11358-01
Chapter 1 Product Overview
Front-Panel Description
LEDs
You can use the switch LEDs described in this section to monitor switch activity
and its performance. Figure 1-3 shows the location of the LEDs and the Mode
button that you use to select one of the port modes.
All of the LEDs described in this section except the utilization meter (UTL) are
visible on the Cluster Management Suite (CMS) home page. The Catalyst 3550
Multilayer Switch Software Configuration Guide describes how to use CMS to
monitor and configure individual switches and switch clusters.
Figure 1-3 Catalyst 3550 LEDs
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Mode button
Port LEDs
System LED
Redundant power system LED
Status LED
Utilization LED
Duplex LED
Speed LED
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