thank you for your response. After a restart from the 2nd switch it works fine.
Hello community, we want to connect two DELL 2724 Switch about the SFP Port and bought DELL compatible 1000Base-SX SFP 850nm Transceiver. The transceiver are connect with LC SC Patchcord DX OM3 with the patchpanel wich connect the floors. It doesn't work and I look since two days for a solution in the www. Now, I don't know what should/can I check anymore. about the configuration: - I plugged the cable with the red light comming in the port with no light and the second line in the port with red light - the interface speed is configured to 1000 Full - Auto Netogation is enabled (I have tried Auto-Netogation turned off) the values from the optical transceiver diagnostic are:      Value    StatusTemperature    27.16 (C)    Not RelevantVoltage    3.83 (V)    Not RelevantCurrent    4.736 (mA)    Not RelevantOutput Power    2.47 (mWatt)    Not RelevantInput Power    2.13 (mWatt)    Not RelevantTransmitter Fault    OK    xLoss of Signal    True    xData Ready    False     x I'm not a SFP expert. I don't know any standards and cable types and possible issues. Any ideas what can be wrong? Sorry for my bad english. Micha
DELL 2724 SFP question