Protocol parsing methodology

Version before fields

JT/T and GB/T standards have editions and vendor profiles. A parser first checks framing and common headers, then applies only the selected or detectable version rules.

Local test data

Hex, SIP, SDP and XML samples are processed in this browser. Shareable URLs may contain input values, so use synthetic or redacted data.

• Remove vehicle identifiers and coordinates.
• Remove SIP passwords, nonces and public addresses.
• Do not upload production packet captures.

Corrections

Report the selected edition, message ID, safe sample frame, expected field value and the reason for the correction. Confirmed fixes receive regression tests.