Re: [Linuxptp-users] PTP4L syncing on (gPTP aware) switch A, but not B

[Axel H. <aho...@gm...>]

On Thu, Feb 19, 2015 at 08:29PM, Richard Cochran wrote:

> On Thu, Feb 19, 2015 at 08:03:51PM +0100, Axel Holzinger wrote:
> >
> > Well, it was a combination of all three tips. Finally I found out that
> > gPTP.cfg sets path_trace_enabled to 1 while switch B doesn't send a path
> > trace TLV. That was the reason for ptp4l to drop the announce message.
> 
> Switch B is non-compliant with 802.1-AS-2011.  The path trace TLV is
> required by clause 10.5.3.2.8 on page 91 and by F.3 g) on page 272.

Thank you Richard. I informed the manufacturer. I'll report back.

Regards
Axel