On Mon, Jan 19, 2026 at 7:59 PM <[email protected]> wrote: > > From: Chia-Yu Chang <[email protected]> > > Based on AccECN spec (RFC9768), if the sender of an AccECN SYN > (the TCP Client) times out before receiving the SYN/ACK, it SHOULD > attempt to negotiate the use of AccECN at least one more time by > continuing to set all three TCP ECN flags (AE,CWR,ECE) = (1,1,1) on > the first retransmitted SYN (using the usual retransmission time-outs). > > If this first retransmission also fails to be acknowledged, in > deployment scenarios where AccECN path traversal might be problematic, > the TCP Client SHOULD send subsequent retransmissions of the SYN with > the three TCP-ECN flags cleared (AE,CWR,ECE) = (0,0,0). > > Signed-off-by: Chia-Yu Chang <[email protected]> > Acked-by: Paolo Abeni <[email protected]> >
Please amend the changelog to give the RFC precise relevant chapter (3.1.4.1 if I am not mistaken) Reviewed-by: Eric Dumazet <[email protected]>
