Description
Color
Port is blocked by Spanning Tree Protocol (STP) and is not forwarding data.
After a port is reconfigured, the port LED is amber for up to 30 seconds as
STP searches for loops.
Amber
Downlink Port PoE LEDs
Description
Color
PoE is not enabled.
Off
PoE is enabled. Ports are functioning correctly.
Green
• PoE port has been denied power.
• PoE port has a PoE fault.
Blinking amber
Uplink Port Data LEDs
Description
LED Color
No link or port was administratively shut down.
Off
Link present but is not sending or receiving data.
Green
Activity. Port is sending or receiving data.
Blinking green
Link fault. Error frames can affect connectivity, and errors such as excessive
collisions, CRC errors, and alignment and jabber errors are monitored for
link faults.
Blinking green-amber
Port is blocked by Spanning Tree Protocol (STP) and is not forwarding data.
After a port is reconfigured, the port LED is amber for up to 30 seconds as
STP searches for loops.
Amber
System LED
System Status
Color
System is not powered on.
Off
System is operating normally.
Green
Cisco Catalyst Micro Series Switch Hardware Installation Guide
6
Product Overview
Downlink Port PoE LEDs
