openflow_input: add BSN extensions to OF 1.4
I left out the following extensions that are no longer used or have been
superceded by the standard:
- bsn_disable_split_horizon_check
- bsn_role_status
- bsn_global_vrf_allowed
diff --git a/openflow_input/bsn_aux_cxns b/openflow_input/bsn_aux_cxns
index 247f81b..8ceaa72 100644
--- a/openflow_input/bsn_aux_cxns
+++ b/openflow_input/bsn_aux_cxns
@@ -28,6 +28,8 @@
// Request that the switch spawn and configure auxiliary OF connections.
//
#version 4
+#version 5
+
// Set the number of desired aux connections num_aux=(0-16) accompanying this main connection
// This message is only allowed on the main connection.
struct of_bsn_set_aux_cxns_request : of_bsn_header {