X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Ftcp%2Ftcp_input.c;h=0e8e68b1339eab0072d03768fe7979e8c794c76f;hb=refs%2Fchanges%2F33%2F25833%2F6;hp=e93e8bae273da680775f214bbd5985d3d88cb08a;hpb=7dd63e5cc1b48adc4f912778ba79d67c71f94b83;p=vpp.git

diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index e93e8bae273..0e8e68b1339 100755
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -2075,7 +2075,8 @@ tcp_segment_rcv (tcp_worker_ctx_t * wrk, tcp_connection_t * tc,
 	   * retransmissions since we may not have any data to send */
 	  if (seq_leq (vnet_buffer (b)->tcp.seq_end, tc->rcv_nxt))
 	    {
-	      tcp_program_ack (tc);
+	      tcp_program_dupack (tc);
+	      tc->errors.below_data_wnd++;
 	      error = TCP_ERROR_SEGMENT_OLD;
 	      goto done;
 	    }