Bug ID 1269733: HTTP GET request with headers has incorrect flags causing timeout

Last Modified: Mar 30, 2024

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:,,,,

Fixed In:
17.1.1, 16.1.4, 15.1.10

Opened: Mar 10, 2023

Severity: 3-Major


The 504 Gateway Timeout pool member responses are generated from a Microsoft webserver handling HTTP/2 requests. The tcpdump shows that the HTTP/2 stream sends the request without an appropriate End Stream flag on the Headers packet.


The HTTP GET request causing timeout.


The server has to provide settings with max-frame-size small enough to force BIG-IP to split the headers across multiple HTTP/2 frames, otherwise this issue does not occur.



Fix Information


Behavior Change

Guides & references

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