Cisco Systems 3560-C manual Modes for Port LEDs, Port Mode, LED Color, Meaning, 1-13, Description

Chapter 1 Product Overview

Front Panel

Modes for Port LEDs

The port LEDs, as a group or individually, display information about the switch and about the individual ports (Table 1-5).

Table 1-6	Modes for Port LEDs
LED		Port Mode	Description
STAT		Port status	The port status. This is the default mode.
DUPLX		Port duplex	The port duplex mode: full duplex or half duplex.
		status
SPD		Port speed	The port operating speed: 10, 100, or 1000 Mb/s.
PD 1		Powered device	The status of the uplink port.
PoE		PoE port power	The PoE status.

1. Only the Catalyst 2960CPD-8PT-L and 3560PD-8PT-S switches have the PD LED.

Port LEDs

RJ-45 ports and SFP-module slots have port LEDs. These LEDs, as a group or individually, provide information about the switch and about the individual ports.

Table 1-7 Meaning of Port LED Colors

LED Color	Meaning
Off	No link or port was administratively shut down.
Green	Link present but is not sending or receiving data.
Blinking green	Activity. Port is sending or receiving data.
Alternating	Link fault. Error frames can affect connectivity, and errors such as excessive
green-amber	collisions, CRC errors, and alignment and jabber errors are monitored for link
	faults.
Amber	Port is blocked by Spanning Tree Protocol (STP) and is not forwarding data.
	After a port is reconfigured, the port LED is amber for up to 30 seconds as STP
	searches for loops.

	Catalyst 3560-C and 2960-C Switch Hardware Installation Guide
OL-23803-02		1-13