Hi,
While debugging the same issue, I found this thread
https://sourceforge.net/p/linuxptp/mailman/linuxptp-users/thread/1382880293.15328.YahooMailBasic%40web161603.mail.bf1.yahoo.com/#msg31567827
I also see that ptp4l fails when using the L2 option AND rx-fcs is set
(ethtool feature is specifically set).
From documentation about rx-fcs:
This requests that the NIC append the Ethernet Frame Checksum (FCS)
to the end of the skb data. This allows sniffers and other tools to
read the CRC recorded by the NIC on receipt of the packet.
Documentation/networking/netdev-features.rst
So having these extra 4 bytes is expected. But still ptp4l regard this
suffix as TLVs. Since both (fcs and tlv) are appended at the end of the
packet, is there a way which is which?
Was there any progress in that direction? Is this a known issue?
Thanks in advanced,
Aya
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