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-rwxr-xr-xsrc/vnet/tcp/tcp_input.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index 7ab7020ee9b..f4e1026e4c5 100755
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -1298,7 +1298,14 @@ tcp_cc_is_spurious_retransmit (tcp_connection_t * tc)
static int
tcp_cc_recover (tcp_connection_t * tc)
{
+ sack_scoreboard_hole_t *hole;
+
ASSERT (tcp_in_cong_recovery (tc));
+
+ hole = scoreboard_first_hole (&tc->sack_sb);
+ if (hole && hole->start == tc->snd_una && hole->end == tc->snd_nxt)
+ scoreboard_clear (&tc->sack_sb);
+
if (tcp_cc_is_spurious_retransmit (tc))
{
tcp_cc_congestion_undo (tc);