Re: [PATCH net] tcp: fix DSACK-based undo on non-duplicate ACK

From: Priyaranjan Jha Date: Fri, 3 Nov 2017 17:46:55 -0700 > Fixes DSACK-based undo when sender is in Open State and > an ACK advances snd_una. > > Example scenario: > - Sender goes into recovery and makes some spurious rtx. > - It comes out of recovery and enters into

[PATCH net] tcp: fix DSACK-based undo on non-duplicate ACK

Fixes DSACK-based undo when sender is in Open State and an ACK advances snd_una. Example scenario: - Sender goes into recovery and makes some spurious rtx. - It comes out of recovery and enters into open state. - It sends some more packets, let's say 4. - The receiver sends an ACK for the first