Hi Axel, On Thu, May 11, 2017 at 07:55:44PM +0800, Axel Lin wrote: > > Hi Sylvain, > > In practice, it usually has application code sending data while PPP > disconnect. I use netconn API + FreeRTOS, so I have a thread keep > sending data to internet. > > While PPP re-connect there is a period I need to send AT commands and > calling ppp_connect(), is there any thing I need to take care for my > application code while PPP discconect and re-connect?
No, if PPP is disconnected IP output packets are tossed[1]. Sylvain [1] http://git.savannah.gnu.org/cgit/lwip.git/tree/src/netif/ppp/ppp.c?id=4171f39a72ed15cb394f7cb9b909c5b3a2068580#n505
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