1-8
Catalyst 2940 Switch Hardware Installation Guide
OL-6157-01
Chapter 1 Overview
Front-Panel Description
Table 1-6 Meaning of Port LED Colors in Different Modes
Port Mode Color Meaning
STAT Off No link.
Solid green Link present.
Flashing green Activity. Port is sending or receiving data.
Alternating
green-amber
Link fault. Error frames can affect connectivity, and errors such as
excessive collisions, CRC errors, and alignment and jabber errors are
monitored for a link-fault indication.
Solid amber Port is not forwarding. Port was disabled by management, an address
violation, or Spanning Tree Protocol (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.
DPLX Off Port is operating in half duplex.
(half or
full
duplex)
Green Port is operating in full duplex.
SPD 10/100 ports
Off Port is operating at 10 Mbps.
Green Port is operating at 100 Mbps.
10/100/1000 ports
Off Port is operating at 10 Mbps.
Green Port is operating at 100 Mbps.
Flashing green Port is operating at 1000 Mbps.
SFP modules
Off Port is operating at 10 Mbps.
Green Port is operating at 100 Mbps.
Flashing green Port is operating at 1000 Mbps.
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