buglwIP - A Lightweight TCP/IP stack - Bugs: bug #54292, TCP support windows size setting.


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bug #54292: TCP support windows size setting.

Submitter:  hanhui <hanhui03>
Submitted:  Thu 12 Jul 2018 11:13:23 AM UTC
Category:  TCP Severity:  3 - Normal
Item Group:  Feature Request Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open Planned Release:  None
lwIP version:  git head

Fri 13 Jul 2018 04:41:45 AM UTC, comment #2: 

There is still a TCP_WND macro as the default initialization window size, then a tcp_wnd_size() function is provided to specifically set the new initial window size of the new TCP connection, tcp_wnd_size() provides a safe range judgment, and even different netif can set different initial windows size.

hanhui <hanhui03>
Thu 12 Jul 2018 06:37:40 PM UTC, comment #1: 

I'm not opposed to this as long as it's optional. You might have to be careful with TCP_SND_BUF and TCP_SND_QUEUELEN though when changing TCP_WND at runtime.

Simon Goldschmidt <goldsimon>
Group administrator
Thu 12 Jul 2018 11:13:23 AM UTC, original submission:  


TCP_WND configuration may be unreasonable due to small net device receive buffer size at compile time. I recommend supporting TCP window size dynamic setting function.


hanhui <hanhui03>


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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