X-Git-Url: https://gerrit.fd.io/r/gitweb?p=vpp.git;a=blobdiff_plain;f=src%2Fvnet%2Ftcp%2Ftcp_input.c;h=4f31d21c3c11a25ea94961cd2dff8822d954ee4c;hp=0e8e68b1339eab0072d03768fe7979e8c794c76f;hb=70f879d2852dfc042ad0911a4a6e4a1714c0eb83;hpb=7fd59cc79c9fb0cccd0cb5c0b4579d0f0a004f6b

diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index 0e8e68b1339..4f31d21c3c1 100755
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -1312,7 +1312,9 @@ tcp_update_snd_wnd (tcp_connection_t * tc, u32 seq, u32 ack, u32 snd_wnd)
 	}
       else
 	{
-	  tcp_persist_timer_reset (tc);
+	  if (PREDICT_FALSE (tcp_timer_is_active (tc, TCP_TIMER_PERSIST)))
+	    tcp_persist_timer_reset (tc);
+
 	  if (PREDICT_FALSE (!tcp_in_recovery (tc) && tc->rto_boff > 0))
 	    {
 	      tc->rto_boff = 0;