S4128F-ON/S4128T-ON Switch

System LED Definition

Feature	Detailed Description	Comment
System LED	Solid Green – all functions are normal. Flashing Green – Booting. Flashing Green with 2 sec on and 1 sec off Solid Amber – Major Fault. Displays summary of all major faults within the system; the faults are traffic affecting. Flashing Amber – Major Fault. Flashing Amber with 2 sec on and 1 sec off Displays summary of all major faults within the system; the faults are not traffic affecting.	At front
Power LED	Solid Green – Normal. Solid Amber – POST in progress. Flashing Amber – Flashing Amber with 2sec on and 1 sec off. Power supply fault. Off – No power.	At front
FAN LED	Solid Green – all functions are normal. Flashing Amber – One of the Fans or Fan tray fault. Flashing Amber with 2 sec on and 1 sec off.	At front
Beacon LED	Not in use.	At front
Stacking LED	Not in use.	At front
7-DIGIT Stack LED	Not in use.	At front

10GBT port LEDs

Feature	Detailed Description
10GBT LED	Off – No Link Solid Green – Link on 10G speed Flashing Green(~30ms) – Port Activity operating at 10G speed. Solid Amber – Port Link operating at lower speed. Flashing Amber (~30ms)–Port Activity operating at lower speed. Solid Blue –Port Beacon/Locater

SFP+ port LEDs

Feature	Detailed Description
SFP+ port LED	Link LED: Green/Amber Solid Green = Port linked operating at max port speed, i.e. running 10G on SFP+ port Solid Amber = Port linked operating at lower speed, i.e. running 1G on SFP+ port. Flashing Amber with 1 sec on and 1 sec off -Port Beacon Off = No link Activity LED: Green Off – There is no current transmit/ receive activity. Flashing Green(~30ms) Port Activity.

QSFP28 port LEDs

1) 1st LED

Feature

Detailed Description

Link/ACT LED

Solid Green = Port link operating at max port speed, i.e. running 100G on QSFP28 port
Flash Green (~30ms) = Port Activity operating at max port speed, i.e. running 100G on QSFP28 port
Solid Amber = Port link operating at lower speed, i.e. running 40G on QSFP28 port.
Flashing Amber (~30ms) =Port Activity operating at lower speed, i.e. running 40G on QSFP28 port.
Off = No link
Flashing Amber with 1 sec on and 1 sec off – Port Beacon

2) All four LEDs shall be used when 4x25G or 10G mode is running on QSFP28 port

Feature	Detailed Description
Link/ACT LED	Solid Green = 4x25G Link on QSFP28 port Solid Amber = 4x10G Link on QSFP28 port Flashing (~30ms) Green = 4x25G Activity on QSFP28 port Flashing (~30ms) Amber = 4x10G Activity on QSFP28 port Off = No link Flashing Amber with 1 sec on and 1 sec off – Port Beacon

3) 1st and 3rd LEDs shall be used when 2x50G mode is running on QSFP28 port

Feature	Detailed Description
Link/ACT LED	Solid Amber = 2x50G Link on QSFP28 port Flashing (~30ms) Amber = 2x50G Activity on QSFP28 port Off = No link Flashing Amber with 1 sec on and 1 sec off – Port Beacon

Management Ethernet port LEDs

Feature	Detailed Description
Link LED	Off – No Link Solid Green – Port link operating at 1G speed. Solid Amber – Port link operating at 10/100M speed.
Activity	Off – No Activity Flashing Green – Port Activity.