Yo Miroslav! On Mon, 3 Aug 2015 11:47:43 +0200 Miroslav Lichvar <mlich...@redhat.com> wrote:
> On Sun, Aug 02, 2015 at 02:58:34AM +0000, Gary E. Miller wrote:
> > > is the same as entering
> > >
> > > ptp4l -i eno1 -i eno2
> >
> > Sadly, no. When you do that ptp4l only uses one SHM, not two. Now
> > if ptp4l read the [eno1] and [eno2] sections it would work.
>
> There is one ptp4l instance (and configuration file) for one PTP or
> system clock, which may have one or more ports. How could one ptp4l
> fill more that one SHM segment if it has only one clock?
I agree, I only tried it because someone on this list asked me to try it.
> > > Another possibility is
> > > ptp4l -f -
> > > together with a HERE file in your shell script.
> >
> > Yeah, but then both instances try to grab ports 319 and 320.
>
> Hm, why is that a problem? The sockets are bound with the
> SO_BINDTODEVICE socket option.
I'm not sure on the exact details, but I get an error message when the 2nd
ptp4l starts and the 2nd instance is non-functional.
> You can even run multiple ptp4l instances in different PTP domains on
> the same NIC (only one using HW timestamping).
Assuming I could get HW timestamping to work. Trying on many hosts
with a few deffferent NIC types the HW timestamping is still non-functional
for me. Works for a short while, then goes bizarro.
You can search this list archive for the gory details...
> The timemaster program can do that for you.
I wish.
> > I tried
> > putting one instance on UDPv4 and one UDPv6, but the UDPv6 seems to
> > also grab the UDPv4 port.
>
> I don't see that happening here.
Interesting, can you share your setup?
RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
g...@rellim.com Tel:+1(541)382-8588
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