[lwip-devel] [bug #28106] duplicate acknowledge for fast retransmit could have not null length

[Simon Goldschmidt]

Follow-up Comment #11, bug #28106 (project lwip):

> Data should be sent from unsent queue
> [..]
> 2. together with acknowledge after tcp_ack_now()

Are you sure about that? That would mean the nagle algorithm would include a
timeout, which I haven't heard of yet. I guess this is implemented by the
condition "unacked == NULL" (which in turn is achieved through fast and slow
retransmission).

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