topic Re: Problems with PTPv2 on X440G2 in ExtremeSwitching (EXOS/Switch Engine)

Problems with PTPv2 on X440G2

Piotr_P2 — Wed, 10 Mar 2021 18:31:25 GMT

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.

Re: Problems with PTPv2 on X440G2

StephanH — Thu, 11 Mar 2021 05:14:50 GMT

Hello,

X440G2 does not support PTP.

Re: Problems with PTPv2 on X440G2

Piotr_P2 — Thu, 11 Mar 2021 16:44:57 GMT

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

Re: Problems with PTPv2 on X440G2

StephanH — Fri, 12 Mar 2021 04:32:46 GMT

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.

Re: Problems with PTPv2 on X440G2

StephanH — Fri, 12 Mar 2021 04:34:06 GMT

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

Re: Problems with PTPv2 on X440G2

Piotr_P2 — Mon, 15 Mar 2021 16:28:44 GMT

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

Re: Problems with PTPv2 on X440G2

Piotr_P2 — Wed, 07 Apr 2021 20:16:00 GMT

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.

Re: Problems with PTPv2 on X440G2

John_Dave_Thurl — Mon, 11 Mar 2024 12:31:19 GMT

Hi there, I hab the same problem with Unify OpenScape Cordless IP v2 DECT Stations.

On EXOS 21.1.3.7 everything worked well....Master antenna und slave antennas are in sync..

and now on EXOS 31.xx they always lose their sync status after some minutes.

First i thought of an multicast problem, but there weren't any problems that found.

In this article:

https://extreme-networks.my.site.com/ExtrArticleDetail?an=000079685

they say that they removed ptpv2 support, but form different models. I use the X440-G2.

Is the missing ptpv2 support my problem, that 4 clients in the same VLAN on the same switch can't sync anymore???

Regards

John Dave