diff options
Diffstat (limited to 'src/vnet/tcp/tcp_output.c')
| -rw-r--r-- | src/vnet/tcp/tcp_output.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c index 53d8ab90dff..e16ea9e133c 100644 --- a/src/vnet/tcp/tcp_output.c +++ b/src/vnet/tcp/tcp_output.c @@ -1826,6 +1826,12 @@ tcp46_output_inline (vlib_main_t * vm, if (PREDICT_FALSE (vnet_buffer (b0)->tcp.flags & TCP_BUF_FLAG_DUPACK)) { + /* N.B. Should not filter burst of dupacks. Two issues: + * 1) dupacks open cwnd on remote peer when congested + * 2) acks leaving should have the latest rcv_wnd since the + * burst may have eaten up all of it, so only the old ones + * could be filtered. + */ if (!tcp_session_has_ooo_data (tc0)) { error0 = TCP_ERROR_FILTERED_DUPACKS; |