13Table 12 10/100/1000Base-T Ethernet port LED descriptionPort mode LED(Mode) status Port LED status DescriptionSteady green(rate mode)Steady green The port is operating at 1000 Mbps. The port LED fast flasheswhen the port is sending or receiving data.Steady Yellow The port is operating at 10/100 Mbps. The port LED fastflashes when the port is sending or receiving data.Flashing yellow (3 Hz) POST has failed on the port.Off No link is present on the port.Steady yellow(duplex mode)Steady green The port is operating in full duplex mode. The port LED fastflashes when the port is sending or receiving data.Steady Yellow The port is operating in half duplex mode. The port LED fastflashes when the port is sending or receiving data.Flashing yellow (3 Hz) POST has failed on the port.Off No link is present on the port.SFP+ port LEDEach SFP+ port has a status LED to show port operating status and activities. The port mode LED indicatesthe type of information (for example, port rate or duplex mode) that the port LEDs are showing. You canuse the port LED mode switching button to change the type of displayed port information.Table 13 SFP+ port LED descriptionPort mode LED(Mode) status SFP+ port LED status DescriptionSteady green(rate mode)Steady green The port is operating at 10 Gbps. The port LED fast flasheswhen the port is sending or receiving data.Steady Yellow The port is operating at 1 Gbps. The port LED fast flashes whenthe port is sending or receiving data.Flashing yellow (3 Hz) POST has failed on the port.Off No link is present on the port.Steady yellow(duplex mode)Steady green The port is operating in full duplex mode. The port LED fastflashes when the port is sending or receiving data.Flashing yellow (3 Hz) POST has failed on the port.Off No link is present on the port.Management Ethernet port LEDsThe S5820X-26S and S5820X-28S switches have two management Ethernet port LEDs (LINK and ACT).