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SubjectRe: unnecessary retransmit from network stack
Date
That isn't a duplicate:

>0x186dce1f8b03 | TxMit | 909902972 | 897283492
> 0x186dce220317 | TxIrq | 909902972 | 897283492
> 0x186dce3002e8 | RxIrq | 897283492 | 909902972
> 0x186dce308560 | TxMit | 909902972 | 897283515 <- dublicate
Acknowledge 897283515, send 0 bytes.
(must be send 0, since the next tx has the same sequence no)

> 0x186dce330bab | TxIrq | 909902972 | 897283515
> 0x186dce3c09bf | TxMit | 909902972 | 897283515 <- dublicate
Acknowledge didn't change, send 22 bytes
(must be 22 bytes, 909902994-909902972)

> 0x186dce3e9b6f | TxIrq | 909902972 | 897283515
> 0x186dce424310 | RxIrq | 897283515 | 909902994
> 0x186dce47bc44 | RxIrq | 897283515 | 909902994
> 0x186dcf094683 | TxMit | 909902994 | 897283791

I'd say bad luck: you try to send data 2 milliseconds after the delack
timer expired.

--
Manfred

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