Cisco Systems IE20004TSL, IE20004TSB, IE200016TCB manual Port Status LEDs

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