[c-nsp] interface between PHY chip and SFP transceiver

[Martin T]

Hi,

in case of 10GigE transceivers there are well known interfaces between
the transceiver and the PHY chip(or directly with ASIC in case of
PHY-less design) like SFI in case of SFP+ or XFI in case of XFP. Is
there a similar interface for SFP transceiver? Or is there no standard
and just a multi-source agreement which defines how the interface
between the SFP and PHY(AFAIK also known as SerDes) is made?


thanks,
Martin