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Protocol Validation

The console tool can generate deterministic validation traffic without opening a NIC.

dotnet run --project .\src\PtpLabClock.Console -- --validate-protocol --domain 0

To export validation frames to PCAP:

dotnet run --project .\src\PtpLabClock.Console -- --validate-protocol --domain 0 --export-pcap .\captures\ptp-validation.pcap

Validation currently covers:

  • Announce
  • Sync
  • Follow_Up
  • VLAN Announce
  • QinQ Sync
  • Pdelay_Req
  • Pdelay_Resp
  • Pdelay_Resp_Follow_Up

Open the PCAP in Wireshark and use:

eth.type == 0x88f7 or ptp

Golden PCAP fixtures

Deterministic PCAP fixtures are stored under:

tests/PtpLabClock.Protocol.Tests/Fixtures/pcap/

They cover untagged Announce, VLAN Sync/Follow_Up, QinQ Pdelay, and a mixed process-bus smoke fixture. See Golden PCAP fixtures.