Cisco Systems 3012, 3110X Port LEDs, Color Activity LED Description Link Status LED Description

Chapter 1 Product Overview

Hardware Features

Port LEDs

The Catalyst Switch Module 3110G and 3012 port LEDs show interface activity and link status. Table 1-8lists the LED colors and their meanings.

Table 1-8	Catalyst Switch Module 3110G and 3012 Port LEDs
Color		Activity LED Description	Link Status LED Description
Off		No activity.	No link, or port was administratively
			shut down.
Green		—	Link present, or the port might be
			blocked by Spanning Tree Protocol
			(STP) and is not forwarding data.
Blinking green		Activity. Port is sending or receiving	—
		data.

When stack mode is selected on a Catalyst Switch Module 3110G, port 4 activity and link LEDs show the status for StackWise Plus ports 1 and 2, respectively. The other port LEDs are off. Table 1-9lists the LED colors and their meanings.

Table 1-9	Catalyst Switch Module 3110G Port LEDs with Stack Mode Selected
Color		Activity LED Description	Link Status LED Description
Off		No link.	No link.
Green		Switch stack link is active.	Switch stack link is active.

The Catalyst Switch Module 3110X port status LEDs show interface activity and link status. (The LEDs combine to display status when an X2 transceiver is inserted.) Table 1-10lists the LED colors and their meanings.

Table 1-10	Catalyst Switch Module 3110X Port LEDs
Color		LED Description
Off		No link, or port was administratively shut down.
Green		Link present.
Blinking green		Activity. Port is sending or receiving data.
Amber		Port is blocked by STP and is not forwarding data, or port was
		administratively shut down.
Alternating		Link fault.
green-amber

Catalyst Switch Module 3110G, 3110X, and 3012 for IBM BladeCenter Hardware Installation Guide

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