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Problems with PTPv2 on X440G2

  • 10 March 2021
  • 6 replies
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I have a problem with the synchronization of Unify base stations over the PTPv2 protocol on the X440-G2 switches. These stations synchronize with each other, one of them is the reference clock. Do these switches support PTP. I found information that only the X460G2, X670G2 and X770 switches support PTP.
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Best answer by StephanH 11 March 2021, 21:32

Priority is given to PTPv2 for AVB with Extreme Switches, for which an exact time is needed. If in your application only your clients exchange information over PTPv2 I would expect that to work.

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Userlevel 7
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Hello,

 

X440G2 does not support PTP.

do I understand correctly that any device 
that uses this protocol will not work properly on these switches ?

Userlevel 7
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Priority is given to PTPv2 for AVB with Extreme Switches, for which an exact time is needed. If in your application only your clients exchange information over PTPv2 I would expect that to work.

Userlevel 7
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There are some bugs reported with 22.x, therefore use one of the newer releases.

Thank you for your answer. I am going to do a lab and take a closer look at the problem.

I managed to solve this problem with setting a local SNTP server.
All devices:  switches and Voip Base Stations are synchronized to the  local SNTP without routing.
Before that, all devices were synchronized to different external time servers.

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