Speed; Stack; Actv (Active) - Cisco Catalyst C3850 Series Hardware Installation Manual

Port LEDs and Modes
Port Mode

SPEED

DUPLX (duplex)
ACTV (data active
switch)
STACK (stack
member)
Catalyst 3850 Switch Hardware Installation Guide
18
Port LED Color Meaning
10/100/1000/SFP ports
Off Port is operating at 10 Mb/s.
Green Port is operating at 100 Mb/s.
Single green flash (on for Port is operating at 1000 Mb/s.
100 ms, off for 1900 ms)
Blinking twice Port is operating at 2500, 5000 or 10000 Mb/s
Network module slots
Off Port is not operating.
Blinking green Port is operating at up to 10 Gb/s.
Port is operating in half duplex.
Off
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.
Product Overview
OL-26779-05