Re: [PATCH] tcp: don't ignore ECN CWR on pure ACK

On 6/23/20, Neal Cardwell wrote: > On Tue, Jun 23, 2020 at 10:54 AM Denis Kirjanov > wrote: >> >> there is a problem with the CWR flag set in an incoming ACK segment >> and it leads to the situation when the ECE flag is latched forever >> >> the following packetdrill script shows what happens: >>

[PATCH] tcp: don't ignore ECN CWR on pure ACK

there is a problem with the CWR flag set in an incoming ACK segment and it leads to the situation when the ECE flag is latched forever the following packetdrill script shows what happens: // Stack receives incoming segments with CE set +0.1 <[ect0] . 11001:12001(1000) ack 1001 win 65535 +0.0 <[c