Install Guide

Table 8. QSFP28 and unified QSFP28 port LEDs
LED Description
Link/Activity LED
● 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
Table 9. QSFP28 and unified QSFP28 port LEDs: 4x25G or 4x10G mode
LED Description
Link/Activity LED
● 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
Table 10. QSFP28 and unified QSFP28 port LEDs: 2x50G mode
LED Description
Link/Activity LED
● 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
Table 11. QSFP+ port LEDs
LED Description
Link/Activity LED
● Off—No link
● Solid green—Link operating at maximum speed—40G port
● Flashing green—Link activity operating at maximum speed
—40G port
● Flashing yellow, 1 second on/off—Port beacon
Table 12. QSFP+ port LEDs: 4x1G or 4x10G mode
LED Description
Link/Activity LED
● Off—No link
● Solid green—Link operating at maximum speed—10G port
● Flashing green—Link activity operating at maximum speed
—10G port
● Solid yellow—Link operating at a lower speed—1G port
● Flashing yellow—Port activity at a lower speed—1G port
● Flashing yellow, 1 second on/off—Port beacon
16 S4100–ON Series switch