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LED
Activity LED
NOTE:
There are four LEDs for each QSFP+, QSFP28, and unified 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 6. QSFP28 and unified QSFP28 port LEDs
LED
Link/Activity LED
Table 7. QSFP28 and unified QSFP28 port LEDs: 4x25G or 4x10G mode
LED
Link/Activity LED
Table 8. QSFP28 and unified QSFP28 port LEDs: 2x50G mode
LED
Link/Activity LED
Table 9. QSFP+ port LEDs
LED
Link/Activity LED
Description
•
Flashing yellow, 1 second on/off—Port beacon
•
Off—No link
•
Flashing green—Port activity
Description
•
Off—No link
•
Solid green—Link operating at maximum speed—100G for
QSFP28 port
•
Flashing green—Link activity operating at maximum speed—
100G port
•
Solid yellow—Link operating at a lower speed—40G or 10G
port
•
Flashing yellow—Port activity at a lower speed—40G or 10G
port
•
Flashing yellow, 1 second on/off—Port beacon
Description
•
Off—No link
•
Solid green—Link operating at maximum speed—4x25G port
•
Flashing green—Link activity operating at maximum speed—
4x25G port
•
Solid yellow—Link operating at a lower speed—4x10G port
•
Flashing yellow—Port activity at a lower speed—4x10G port
•
Flashing yellow, 1 second on/off—Port beacon
Description
•
Off—No link
•
Solid yellow—Link operating at a lower speed—2x50G port
•
Flashing yellow—Link activity at a lower speed—2x50G port
•
Flashing yellow, 1 second on/off—Port beacon
Description
•
Off—No link
•
Solid green—Link operating at maximum speed—40G port
S4100–ON Series switch
13
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