Hi: I develop a ftp server with lwIP tcp api,, now a problem blocks me a long time . Normally, I get file from the ftp server by FlashFXP, the speed is up to 200kB/s. but the speed becomes lower in following case:
1. Unplug cable when getting file from the ftp server 2. the transfer will process continually after plug cable again, then, the speed becomes 3KB/s I trace the problem and find the value of tcp_sndbuf(pcb) is small enough...I guess it dues to slipping windows problem Anyone meet the problem ? Vincent Cui Sr. Firmware Engineer Mobile: +8613255150315 Tel: +86 21 34612525x6104 Fax: +86 21 34619770 E-Mail: [email protected]<mailto:[email protected]> Shanghai EnLogic Electric Technology Co., Ltd. Address: 1104-1106, Building A, No.391, Guiping Road, Xuhui District, Shanghai, 200233
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