Re: [lwip-users] Re transmission behaviour?

[Fred39]

Hi Marty 

sorry i maybe should have told more about the transfer.


Pomeroy, Marty wrote:
> 
> Your reponse needs to be acknowledged, and the acknowledgment (Ack) for
> your previous response is included in the next request.  
> 
Yes this i can confirm when the master Cylce is very fast i found out till
58ms it works and its like this:
Request ->
<- Ack
<-Response
Request -> (Ack for previous Response)

But slower than 60ms it looks like this
Request ->
<- Ack
<- Response
<-Retransmission (immediately after restransmission like less than 1ms i get
the ACK for the response)
Ack->
This happends for every request.

I tried to set the defines
TCP_FAST_INTERVAL,TCP_SLOW_INTERVAL,TCP_OOSEQ_TIMEOUT
high without success did u mean this values by "retransmission timeout" ? 

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