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Question: Multiple DoIP messages in a single TCP frame #51
Description
Hi DoIP experts,
this is not really an issue, it is more a question:
Is it allowed to send multiple DoIP messages within a single TCP Frame?
If it is allowed (or not) can you also tell me the specification where I can officially find the information? I checked ISO 13400-2 but could not find anything.
For example the following TCP Frame:
there are two DoIP messages in a single TCP Frame:
- 02fd800200000005e0000e0000
- 02fd80010000000ae0000e005003003201f4
Thanks for your time :)
Activity
[-]Question: Multiple DoIP messages in a single TCP packet[/-][+]Question: Multiple DoIP messages in a single TCP frame[/+]6reend0g commentedon Aug 13, 2025
ISO 13400-2 Page 38, Sector 9.2 AL generic DoIP protocol message structure mentioned about this behavior, but not directly. It says "For TCP-based data, the header separates the individual DoIP messages within the data stream". So, I think this means it allows you to put two or more DoIP frames in a single TCP frame