PTP Time Synchronization

yanboyang713

Member
Dec 18, 2021
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Hello Guys,

Good day to you.

Currently, I am using the OVS bridge as my main bridge, I want to use software solution as my PTP Grandmaster connect to main OVS bridge and synchronization time to all of my VMs and Devices.

1639797258624.png

However, I found my OVS bridge, only support *software-receive* and *software-system-clock*, according to the link below.

https://documentation.suse.com/sles...cha-tuning-ptp.html#tuning-ptp-driver-support

If this bridge NOT support software-transmit, is that mean OVS Bridge could NOT as *Boundary Clock*?

What is accuracy meaning for software-transmit?
Could I use software PTP solution for synchronization time to all of my VMs and Devices?

```
root@pve:~# ethtool -T vmbr0
Time stamping parameters for vmbr0:
Capabilities:
software-receive
software-system-clock
PTP Hardware Clock: none
Hardware Transmit Timestamp Modes: none
Hardware Receive Filter Modes: none
```

Have a nice day.
Boyang