Saturday, November 24, 2018

1GigE Copper RJ45 SFP modules

Hi,

I have a bunch of legacy servers that need connecting to a new switch fabric. The problem is that the switches are all 10GigE SFP+ and the servers only have 1GigE copper RJ45 NICs.

I'm looking at buying some copper SFP adapters from https://www.flexoptix.net/en/transceiver/sfp_-copper but I'm confused about wether I need SGMII or SerDes and also if I need NO_RX_LOS or RX_LOS or Preferred Master etc..

Can someone shed some light on the differences?

The switches I'll be using are Dell S4148F-ON and the NICs are Broadcom based.



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