7 Aug
2024
7 Aug
'24
10:39 a.m.
On 8/7/24 02:01, Saku Ytti wrote:
I can't help you, but I'm just awfully curious and must ask, why specifically optical ports? Seems very strange and a limiting requirement for upside that my imagination struggles to find.
Among the other reasons folks have given, the 10GBASE-T PHY has added latency beyond the basic packetization/serialization delay inherent to Ethernet due to the use of a relatively long line code plus LDPC. It's not much (2-4us which is still less than 1000BASE-T serialization+packetization latency with larger packets), but it's more than 10GBASE-R PHYs. The HFT guys may care, but most other folks probably don't give a hoot.