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ERROR_RECEIVE_EXPEDITED
What ERROR_RECEIVE_EXPEDITED means
A network transport delivered data marked as expedited or out-of-band. In practical terms, this status belongs to transport priority data: the remote peer sent data through the protocol mechanism for urgent or expedited delivery.
Typical causes
- A protocol uses TCP urgent data or an equivalent transport feature
- A legacy TDI client distinguishes normal and expedited receive paths
- The remote endpoint signaled high-priority control information
How to investigate
- Capture transport flags and peer endpoint
- Verify that the application has a defined expedited-data handler
- Check whether middleboxes or protocol conversions preserve the expected semantics
Developer guidance
Do not append expedited bytes blindly to the normal application stream. Their meaning is protocol-specific and often represents control rather than payload.
References
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