Sabrina :verified_trans: · @sabrina
28 followers · 269 posts · Server ioc.exchange

A quick note on using 10Gbase-T SPF+ modules at speeds below 10Gb/s (nbase-T AKA multi-gig AKA multi-rate):

When connected to a switch most 10Gbase-T SPF+ modules will negotiate a 10Gb/s link with the switch and then separately negotiate a connection with the connected client device. If the client connects at 10Gb/s everything should work smoothly. If the client connects at less than 10Gb/s you will likely see reduced speeds and increased latency as clients frequently encounter errors and must resend data. Turn on flow control for the switch port to solve this.

Example: I had a 2.5Gb/s client connected to a 10Gb/s 10Gbase-T module and throughput without flow control was all over the place but averaging around 750Mb/s with inconsistent ping times. Turning on flow control smoothed this out to a very consistent 2.5Gb/s as it should be.

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#sfp #10Gbe #ethernet

Last updated 1 year ago

Burak Gürsoy · @burak
50 followers · 308 posts · Server mastodon.world

2011 vs 2023. 11.5 years and a multitude of technologies apart.

#apple #Macmini #M2Pro #10Gbe

Last updated 2 years ago

Tech News Worldwide · @TechNews
11246 followers · 97975 posts · Server aspiechattr.me