LED
Description
•
Blinking blue—Locator function is enabled
RJ-45 Ethernet LED
•
Off—no link and no activity detected
•
On—Activity on the port
•
Solid yellow—10MHz activity
•
Solid green—100MHz activity
•
Blinking green—1GHz activity
Table 2. Management Ethernet port LEDs
LED
Description
Link LED
•
Off—No Link
•
Solid green—Link operating at a maximum speed,
autonegotiated/forced or 1G
•
Solid yellow—Link operating at a lower speed, autonegotiated/
forced or 10/100M
Activity LED
•
Off—No Link
•
Flashing green—Port activity
Table 3. SFP+ port LEDs
LED
Description
Link LED
•
Off—No Link
•
Solid green—Link operating at maximum speed, 10G
•
Solid yellow — Link operating at a lower speed, 1G
•
Flashing yellow, 1 second on/off—Port beacon
Activity LED
•
Off—No Link
•
Flashing green—Port activity
NOTE:
There are four LEDs for each QSFP+ and QSFP28 port. For each port, 100GbE or 40GbE uses only one LED, 2x50GbE
uses two LEDs, and 4x25GbE or 4x10GbE uses all four LEDs.
Table 4. QSFP+ and QSFP28 port LEDs
LED
Description
Link/Activity LED
•
Off—No Link
•
Flashing green—Port activity operating at maximum speed,
100G for QSFP28 ports or 40G for QSFP+ ports
•
Flashing yellow—Port activity operating at a lower speed
•
Flashing yellow, 1 second on/off—Port beacon
Link/Activity LED—4x25G mode or 4x10G mode
•
Off—No Link
•
Flashing green—Port activity at 4x25G on a QSFP28 port or
4x10G on a QSFP+ port
•
Flashing yellow—Port activity at 4x10G on a QSFP28 port
10
S4200-ON series switch
