X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fopenflow%2Fopenflow.h;fp=include%2Fopenflow%2Fopenflow.h;h=50fee6eeae8398f7c8fe10ad92b518cd56929370;hb=cef90b63b91e6738ea43d2039d6b0506a4752f97;hp=60ed8b899c6efd7c30e02cbb83d66ecc952f8727;hpb=4a1c5a01967225086795f5660fec4098f458948c;p=sliver-openvswitch.git

diff --git a/include/openflow/openflow.h b/include/openflow/openflow.h
index 60ed8b899..50fee6eea 100644
--- a/include/openflow/openflow.h
+++ b/include/openflow/openflow.h
@@ -229,8 +229,9 @@ OFP_ASSERT(sizeof(struct ofp_phy_port) == 48);
 /* Switch features. */
 struct ofp_switch_features {
     struct ofp_header header;
-    uint64_t datapath_id;   /* Datapath unique ID.  Only the lower 48-bits
-                               are meaningful. */
+    uint64_t datapath_id;   /* Datapath unique ID.  The lower 48-bits are for 
+                               a MAC address, while the upper 16-bits are
+                               implementer-defined. */
 
     uint32_t n_buffers;     /* Max packets buffered at once. */