Forum Discussion

Mohit_Rathee's avatar
Mohit_Rathee
Icon for Nimbostratus rankNimbostratus
Jul 07, 2019

HTTP Post across Mutiple TCP Segment

When attempting to send HTTP post request across multiple TCP segments the request fails. We receive a response that HTTP Body is missing from the server. . But if i send the same HTTP post reques...
devops
HTTP_POST
iRules
LTM
Segmentation
tcp
Dario_Garrido's avatar
Dario_Garrido
Icon for MVP rankMVP
Jul 09, 2019

Then, the reason of this second packet is not sent to the backend is because of the HTTP profile as I mentioned.

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What's the problem of using L4 virtual in your environment? This will fix the problem.

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There are some bugs regarding TCP Segmentation. If you want to experiment, I recommend you disable TSO and LRO to force software TCP segmentation processing.

https://support.f5.com/csp/article/K15609

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Also, you could program your client to use chucking method to send your payload. That will avoid TCP segmentation.

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KR,

Dario.

  • Dario_Garrido's avatar
    Dario_Garrido
    Icon for MVP rankMVP
    Jul 09, 2019

    BTW, you can also configure http profile proxy mode as transparent to avoid compliant checking.

    https://support.f5.com/csp/article/K40243113

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    KR,

    Dario.