Hi Jake,
Finally, the test over Ethernet was enough for me.
Thanks for your prompt reply.
Yaset
-Original Message-
From: Keller, Jacob E <jacob.e.kel...@intel.com>
Sent: jeudi 12 avril 2018 19:26
To: OLIVA VENEGAS Yaset - Subcontractor
<yaset.oliva-venegas.subcontrac...@crf.canon.fr>;
linuxptp-users@lists.sourceforge.net
Subject: RE: Test fails with tap interfaces and UDP protocol
> -Original Message-
> From: OLIVA VENEGAS Yaset - Subcontractor [mailto:yaset.oliva-
> venegas.subcontrac...@crf.canon.fr]
> Sent: Thursday, April 12, 2018 5:17 AM
> To: linuxptp-users@lists.sourceforge.net
> Subject: [Linuxptp-users] Test fails with tap interfaces and UDP
> protocol
>
> Hello,
>
>
>
> I've been trying to test without success ptp4l with virtual tap
> interfaces using UDP.
>
> The symptom is that no foreign clock is seen and then the slave
> auto-select as BM. However using Ethernet the foreign clock is seen and
> selected.
>
>
>
> My network is composed of two tap interfaces and one switch in-between.
>
> Traffic analysis (using Wireshark) on the slave interface shows the
> UDP packets as expected.
>
> However, debugging ptp4l demonstrates that no UDP packet is received
> at application level (printing the FD on events is always FD_ANNOUNCE_TIMER).
>
>
Common problems could include (a) firewalld or iptables interfering? (b) did
you make sure ptp4l is configured to use UDP?
Thanks,
Jake
>
> I'd appreciate any comment on this.
>
>
>
> Thanks,
>
>
>
> Yaset
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