Can ordinary equipment access TSN time sensitive network?

Ordinary equipment needs to be connected TSN The Internet , According to my recent research ：

1. The network card of ordinary equipment must support PTP

Just want to achieve TSN Clock synchronization must be achieved . 802.1AS yes PTP A simplified version of the protocol , Support PTP The network card of is the foundation of clock synchronization .

How to check whether the network card supports PTP？

according to linuxptp Description of the project  GitHub - openil/linuxptp: PTP IEEE 1588 stack for Linux 

Use ethtool Tool to check the support of network card for timestamp .

If the first one is support PTP Of , If it's the second , Only software timestamp is supported , The real-time performance will be much worse .

Clock synchronization may not be possible .

What you see here is the network card MAC The situation of , During the actual test, it is found that , Some board PHY Timestamp is not supported , It will also cause the network card to fail to realize clock synchronization .

How to conduct clock synchronization test ？

Refer to this and my last article ：

utilize LinuxPTP Time synchronization ( soft / Hardware timestamp )_jun_renascence The blog of -CSDN Blog _linux ptp Timing

2. Need to support VLAN technology

TSN Switch to TSN The scheduling of data packets in the network adopts VLAN Implemented by label technology , Therefore, the connected device should also support VLAN technology ,VLAN yes 00-10 Technology of , Current network cards basically support VLAN, however Linux The operating system should support VLAN, Need to have 8021q This module .

For more information, please refer to ：

Getting Started with AVB on Linux* — TSN Documentation Project for Linux* 0.1 documentation