[michaelt]

The blog's next post is about PTP, if that's what you're interested in.

The Linux PTP stack is great for the price, but as an open source project it's hamstrung by the fact the PTP standard (IEEE1588) is paywalled; and the fact it doesn't work on wifi or usb-ethernet converters (meaning it also doesn't work on laptop docking stations or raspberry pi 3 and earlier)

This limits people developing/using for fun. And it's the people using it for fun who actually write all the documentation, the 'serious users' at high frequency trading firms and cell phone networks aren't blogging about their exploits.

[RossBencina]

> it doesn't work on wifi

802.1AS-2020 (gPTP) includes 802.11-2016 (wifi) support.

The IEEE's gatekeeping is indeed odious.

The biggest limitation is that many ethernet MACs do not support hardware timestamping. Nor do many entry-level ethernet switches.

For what it's worth, I'm interested in TSN for fun (music, actually), and I'm prepared to buy compatible networking hardware to do it. No difference to gamers spending money on a GPU.

[eqvinox]

Most new MACs do it, (cheap) switches are still a problem though.