prevent bi-directional connections from triggering duplicate-ack fast-retransmits
prevent bi-directional connections from triggering duplicate-ack fast-retransmits

anacrolix/go-libutp,anacrolix/go-libutp,anacrolix/go-libutp,anacrolix/go-libutp,bittorrent/libutp,bittorrent/libutp,bittorrent/libutp