Question: Multiple DoIP messages in a single TCP frame

[nobbi1991]

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 :)

[6reend0g]

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