Re: [Linuxptp-users] FW: master state recommended in slave only mode

[Richard C. <ric...@gm...>]

On Tue, Nov 02, 2021 at 05:25:45AM +0000, Christian Leeb via Linuxptp-users wrote:
> Hi
> 
> I'm running a BC with slaveOnly.
> 
> It behaves as expected: it sync to the best master and the other ports are in state listening (without slaveOnly they would  master). It's like an OC with multiple ports. This is what I need.

And it works correctly in the presence of multiple masters on
different ports?

> The only thing that irritates me a bit is the warnings:
> 
> ptp4l[36702.594]: port 2: master state recommended in slave only mode
> ptp4l[36702.594]: port 2: defaultDS.priority1 probably misconfigured
> 
> sent in port_slave_priority_warning()
> 
> Should I worry? Is slaveOnly for BC kind of officially supported?

If it works, then I wouldn't worry.  I would test foreign master
failover if that is your aim.

The BC as in 1588 does not have the idea of client only operation,
hence the warning message.  I think what you really want is some kind
of redundancy setup, but the various possible solutions are still a
WIP IMHO.

Thanks,
Richard