Cisco Catalyst 3650 Series Manual page 13

Chapter 1 Product Overview
Table 1-4
Port Mode
STAT
(port status)
SPEED
DUPLX
(duplex)
ACTV
(data active
switch)
STACK
(stack member)
OL-29734-01
Meaning of Switch LED Colors in Different Modes
Port LED Color Meaning
Off No link, or port was administratively shut down.
Green Link present, no activity.
Blinking green Activity. Port is sending or receiving data.
Alternating Link fault. Error frames can affect connectivity, and errors such as
green-amber 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 be amber for up to 30
seconds as STP checks the switch for possible loops.
10/100/1000/SFP ports
Off Port is operating at 10 Mb/s.
Green Port is operating at 100 Mb/s.
Single green Port is operating at 1000 Mb/s.
flash (on for
100 ms, off for
1900 ms)
SFP+ ports
Off Port is not operating.
Blinking green Port is operating at up to 10 Gb/s.
Off Port is operating in half duplex.
Green Port is operating in full duplex.
Off The switch is not the active switch.
Note
Green The switch is the active switch.
Amber Error during active switch election.
Blinking green Switch is a standby member of a data stack and assumes active
responsibilities if the current active switch fails.
Off No stack member corresponding to that member number.
Blinking green Stack member number.
Green Member numbers of other stack member switches.
For a standalone switch, this LED is off.
Catalyst 3650 Switch Hardware Installation Guide
Front Panel
1-11