Chapter 1 Product Overview

Front Panel

Port Status LEDs

Each 10/100BASE-T downlink port, 10/100BASE-T uplink port, 10/100/1000BASE-T uplink port, dual-purpose uplink port, and SFP Module uplink slot has a port status LED, also called a port LED, as shown in Figure 1-8and Figure 1-9. Table 1-9displays LED information about the switch and the individual ports.

Table 1-9 Port Status LEDs

Color

System Status

 

 

Off

No link.

 

 

Solid green

Link present.

 

 

Blinking green

Activity. Port is sending or receiving data.

 

 

Alternating

Link fault. Error frames can affect connectivity, and errors

green-amber

such as excessive collisions, CRC errors, and alignment and

 

jabber errors are monitored for a link-fault indication.

 

 

Solid amber

Port is not forwarding. The port was disabled by management,

 

an address violation, or STP.

 

Note After a port is reconfigured, the port LED can remain

 

amber for up to 30 seconds while STP checks the

 

switch for possible loops.

 

 

 

 

Cisco IE 2000 Switch Hardware Installation Guide

 

 

 

 

 

 

OL-25818-04

 

 

1-17

 

 

 

 

 

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Cisco Systems IE20004TSL, IE20004TSB, IE200016TCB manual Port Status LEDs