I’m trying to understand few things about gPTP (IEEE 802.1AS). I am using the open source implementation by AVnu (https://github.com/AVnu/gptp).
I looking on the packets using Wireshark, and they are parsed as PTPv2 packets.
Is there any protocol difference between the packets themselves that can be used to understand whether a certain traffic is gPTP or normal PTP? I know that gPTP only extends PTP, but I thought there would be a detectable difference.
gPTP is a profile of PTPv2; it implements some additional features.
Wireshark should be able to decode everything which may be of interest to you. If it does not, then you can file an enhancement request.
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.