mgmt: Cleanup handling of extended messages

[sliver-openvswitch.git] / include / openflow / openflow-mgmt.h

diff --git a/include/openflow/openflow-mgmt.h b/include/openflow/openflow-mgmt.h
index c3b62c9..04017d4 100644 (file)
--- a/include/openflow/openflow-mgmt.h
+++ b/include/openflow/openflow-mgmt.h
@@ -243,7 +243,8 @@ enum ofmp_extended_data_flags {
 
 /* Body of extended data message.  May be sent by either the switch or the
  * controller to send messages that are greater than 65535 bytes in
- * length.
+ * length.  The OpenFlow transaction id (xid) must be the same for all
+ * the individual OpenFlow messages that make up an extended message.
  *
  * OFMPT_EXTENDED_DATA (switch <-> controller) */
 struct ofmp_extended_data {