_(NOT_CONNECTED, -78, "Not connected to the data plane") \
_(IF_ALREADY_EXISTS, -79, "Interface already exists") \
_(BOND_SLAVE_NOT_ALLOWED, -80, "Operation not allowed on slave of BondEthernet") \
-_(VALUE_EXIST, -81, "Value already exists")
+_(VALUE_EXIST, -81, "Value already exists") \
+_(SAME_SRC_DST, -82, "Source and destination are the same")
typedef enum {
#define _(a,b,c) VNET_API_ERROR_##a = (b),