On Mon, Sep 8, 2025 at 10:34 AM <chia-yu.chang@xxxxxxxxxxxxxxxxxxx> wrote: > > From: Ilpo Järvinen <ij@xxxxxxxxxx> > > AccECN byte counter estimation requires delivered bytes > which can be calculated while processing SACK blocks and > cumulative ACK. The delivered bytes will be used to estimate > the byte counters between AccECN option (on ACKs w/o the > option). > > Accurate ECN does not depend on SACK to function; however, > the calculation would be more accurate if SACK were there. > > Signed-off-by: Ilpo Järvinen <ij@xxxxxxxxxx> > Signed-off-by: Chia-Yu Chang <chia-yu.chang@xxxxxxxxxxxxxxxxxxx> > Acked-by: Paolo Abeni <pabeni@xxxxxxxxxx> Reviewed-by: Eric Dumazet <edumazet@xxxxxxxxxx>