OK you were right about ports not being isolated. On Wireshark when a
request was sent, it got broadcasted and then received responses from all
devices.
I suspected the NUC which has an I219V was causing problems so I replaced
it with a third PC using an I210 and then everything worked fine and
according to Wireshark the devices are isolated.
Just to be sure I also replaced the switch with an Extreme x440-48t. The
Extreme has gPTP enabled and works fine with the I210's but the NUC still
causes problems.
>From the Extreme you can see gPTP is enabled. port 25 and 27 is connected
to the I210's and port 29 is connected to the NUC.
X440-48t.4 # show network-clock gptp
gPTP status : Enabled
gPTP enabled ports : 1d 2d 3d 4d 5d
6d 7d 8d 9d 10d
11d 12d 13d 14d 15d
16d 17d 18d 19d 20d
21d 22d 23d 24d *25m
26d *27m 28d *29d 30d
31d 32d 33d 34d 35d
36d 37d 38d 39d 40d
41d 42d 43d 44d 45d
46d 47d 48d
Flags: (*) Active, (!) Administratively disabled, (d) Disabled gPTP port
role, (m) Master gPTP port role, (p) Passive gPTP port role, (s) Slave gPTP
port role
Al the devices are using clean installs of Ubuntu, exact same profiles and
build of PTP4L so I am not sure whats up with the NUC.
On Tue, Jul 31, 2018 at 5:19 PM, Richard Cochran <richardcoch...@gmail.com>
wrote:
> On Tue, Jul 31, 2018 at 08:53:07AM +0200, André Sadie wrote:
> > Do you mind elaborating a little more on that? The switch I am using is a
> > time-aware AVB switch that should be able to perform P2P as far as I
> know.
>
> Ok, then, that is what I meant. According to gPTP, such a switch is
> called a "time aware bridge". It is clear from the logs that your
> switch is not isolating the ports as it should. See Delio's response.
>
> Thanks,
> Richard
>
>
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