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Re: [lwip-users] How could let lwIP send more without wait ACK

From: Kieran Mansley
Subject: Re: [lwip-users] How could let lwIP send more without wait ACK
Date: Tue, 20 Apr 2010 13:26:27 +0100

On Tue, 2010-04-20 at 20:19 +0800, yueyue papa wrote:
> windows server:
> GPRS module:
> I like the GPRS module TCP/IP behavior,  It send as much data as
> possible without wait remote ACK.

Where is lwIP in all this?  If one end is windows, and the other end has
behaviour you like, which bit is the problem?

> My lwIP unable to create such result:  my lwIP could only send no more
> than 2 TCP segment, and then wait ACK. The network delay will cause
> performance down.

Can you point at packets in the capture you sent that that illustrate

> I like to make lwIP send as much as possible. Is it possible to
> configure for this result?

Your problem is not just a simple change in configuration, from what I
saw in that packet capture, as explained in the earlier message, there
appears to be something wrong with timing.

> You refered not continuous to send is due to server congestion
> algorithm, but I use the same sever, I could see the TCP segment send
> as much as possible.

The packet capture provided does not show congestion as being a limiting


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