On Wed, Oct 28, 2020 at 06:27:42AM +1100, mgrosve...@gmail.com wrote: > Furthermore, some switches (Eg Arista and and Cisco) use the CRC to convey > timestamps in packets.
If that is true, then their device drivers should strip off the time stamp and provide it via the SO_TIMESTAMPING mechanism. > It would be absolutely necessary to be able to see the “CRC” for this this > use case, on the same interface that PTP traffic traverses, even if PTP > traffic itself is unaffected. No, that is not correct. No user software ever expects to see time stamps bolted on randomly. There is a proper time stamping API for that. Thanks, Richard _______________________________________________ Linuxptp-devel mailing list Linuxptp-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-devel
