Re: [PATCH v3 net 4/5] tcp: prevent bogus undos when SACK is not enabled

2018-04-04 Thread Ilpo Järvinen
On Wed, 28 Mar 2018, Yuchung Cheng wrote: > On Tue, Mar 13, 2018 at 3:25 AM, Ilpo Järvinen > wrote: > > When a cumulative ACK lands to high_seq at the end of loss > > recovery and SACK is not enabled, the sender needs to avoid > > false fast retransmits (RFC6582). The avoidance mechanisms is > >

Re: [PATCH v3 net 4/5] tcp: prevent bogus undos when SACK is not enabled

2018-03-28 Thread Yuchung Cheng
On Tue, Mar 13, 2018 at 3:25 AM, Ilpo Järvinen wrote: > When a cumulative ACK lands to high_seq at the end of loss > recovery and SACK is not enabled, the sender needs to avoid > false fast retransmits (RFC6582). The avoidance mechanisms is > implemented by remaining in the loss recovery CA state

[PATCH v3 net 4/5] tcp: prevent bogus undos when SACK is not enabled

2018-03-13 Thread Ilpo Järvinen
When a cumulative ACK lands to high_seq at the end of loss recovery and SACK is not enabled, the sender needs to avoid false fast retransmits (RFC6582). The avoidance mechanisms is implemented by remaining in the loss recovery CA state until one additional cumulative ACK arrives. During the operati