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Catalyst 2960 Switch Hardware Installation Guide
OL-7075-05
Chapter 1 Product Overview
Front Panel Description
To select or change a mode, press the Mode button until the desired mode is highlighted. When you
change port modes, the meanings of the port LED colors also change.
Table 1-7 explains how to interpret
the port LED colors in different port modes.
Table 1-7 Meaning of Port LED Colors in Different Modes on the Switch
Port Mode LED Color Meaning
PoE Off PoE is off.
If the powered device is receiving power from an AC power source, the PoE port LED
is off even if the powered device is connected to the switch port.
Green PoE is on. The port LED is green only when the switch port is providing power.
Alternating green
and amber
PoE is denied because providing power to the powered device will exceed the 370 W
switch power capacity.
Blinking amber PoE is off due to a fault.
Caution PoE faults are caused when noncompliant cabling or powered devices are
connected to a PoE port. Use only standard-compliant cabling to connect
Cisco pre-standard IP Phones or wireless access points or
IEEE
802.3af-compliant devices to PoE ports. You must remove from the
network the cable or device that causes a PoE fault.
Amber PoE for the port has been disabled. PoE is enabled by default.
STAT
(port status)
Off No link, or port was administratively shut down.
Green Link present.
Blinking 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.
Amber Port is blocked by Spanning Tree Protocol (STP) and is not forwarding data. After a
port is reconfigured, the port LED can remain amber for up to 30 seconds as STP
checks the network topology for possible loops.
Blinking amber Port is blocked by STP and is not sending or receiving packets.
DUPLX
(duplex)
Off Port is operating in half duplex.
Green Port is operating in full duplex.
SPEED
10/100 and 10/100/1000 ports
Off Port is operating at 10 Mb/s.
Green Port is operating at 100 Mb/s.
Flashing green Port is operating at 1000 Mb/s.
SFP ports
Off Port is operating at 10 Mb/s.
Green Port is operating at 100 Mb/s.
Blinking green Port is operating at 1000 Mb/s.
Note The 1000BASE-T SFP modules can operate at 10, 100, or 1000 Mb/s in
full-duplex mode or at 10 or 100 Mb/s in half-duplex mode.