On 10/30/25 3:34 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]>
