Cisco 3524XL - Catalyst Enterprise Edition Switch Hardware Installation Manual page 38

Front-Panel Description
Table 1-8 Meaning of LED Colors in Different Modes on the Catalyst 3524-PWR XL Switch
Port Mode LED Color
STATUS Off
(port status)
Solid green
Flashing green
Alternating
green-amber
Solid amber
DUPLEX Off
Green
10/100 ports
SPEED
(speed)
Off
Green
1000BaseX ports
Off
Green
LINE PWR Off
(inline power)
Green
Catalyst 3500 Series XL Hardware Installation Guide
1-20
Meaning
No link.
Link present.
Activity. Port is transmitting or receiving data.
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.
Port is not forwarding. Port was disabled by management or an
address violation or was blocked by Spanning Tree Protocol (STP).
After a port is reconfigured, the port LED can remain
Note
amber for up to 30 seconds as STP checks the switch for
possible loops.
Port is operating in half duplex.
Port is operating in full duplex.
Port is operating at 10 Mbps.
Port is operating at 100 Mbps.
Port is not operating.
Port is operating at 1000 Mbps.
Inline power is off.
Inline power is on.
If the Cisco IP Phone is receiving power from an AC power source,
the port LED is off even if the IP phone is connected to the switch
port. The LED turns green only when the switch port is providing
power.
Chapter 1 Product Overview
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