On Mon, Oct 19, 2020 at 02:49:13PM -0600, Robert Hancock wrote: > The Finisar FCLF8520P2BTL 1000BaseT SFP module uses a Marvel 81E1111 PHY > with a modified PHY ID, and by default does not have 1000BaseX > auto-negotiation enabled, which is not generally desirable with Linux > networking drivers.
I could be wrong, but i thought phylink used SGMII with copper SFPs, so that 10/100 works as well as 1G. So why is 1000BaseX an issue? Do you have a MAC which cannot do SGMII, only 1000BaseX? Andrew
