diff --git a/test_data/of10/flow_add.data b/test_data/of10/flow_add.data
new file mode 100644
index 0000000..9801a36
--- /dev/null
+++ b/test_data/of10/flow_add.data
@@ -0,0 +1,62 @@
+-- binary
+01 0e 00 70 12 34 56 78
+00 00 00 0c 00 03 01 23
+45 67 89 ab cd ef 01 23
+45 67 00 00 00 00 00 00
+00 00 00 00 c0 a8 03 7f
+ff ff ff ff 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 05 00 00 00 00
+00 00 00 00 00 00 00 02
+00 00 00 08 ff fb 00 00
+ff ff 00 10 00 00 23 20
+00 12 00 00 00 00 00 00
+ff ff 00 10 00 5c 16 c7
+00 00 00 02 00 00 00 00
+-- python
+ofp.message.flow_add(
+    xid=0x12345678,
+    match=ofp.match(
+        wildcards=ofp.OFPFW_DL_SRC|ofp.OFPFW_DL_DST,
+        in_port=3,
+        ipv4_src=0xc0a8037f,
+        ipv4_dst=0xffffffff,
+        eth_src=[0x01, 0x23, 0x45, 0x67, 0x89, 0xab],
+        eth_dst=[0xcd, 0xef, 0x01, 0x23, 0x45, 0x67]),
+    idle_timeout=5,
+    flags=ofp.OFPFF_CHECK_OVERLAP,
+    actions=[
+        ofp.action.output(port=ofp.OFPP_FLOOD),
+        ofp.action.nicira_dec_ttl(),
+        ofp.action.bsn_set_tunnel_dst()])
+-- python pretty-printer
+flow_add {
+  xid = 0x12345678,
+  match = match_v1 {
+    wildcards = OFPFW_DL_SRC|OFPFW_DL_DST,
+    in_port = 3,
+    eth_src = 01:23:45:67:89:ab,
+    eth_dst = cd:ef:01:23:45:67,
+    vlan_vid = 0x0,
+    vlan_pcp = 0x0,
+    eth_type = 0x0,
+    ip_dscp = 0x0,
+    ip_proto = 0x0,
+    ipv4_src = 192.168.3.127,
+    ipv4_dst = 255.255.255.255,
+    tcp_src = 0x0,
+    tcp_dst = 0x0
+  },
+  cookie = 0x0,
+  idle_timeout = 0x5,
+  hard_timeout = 0x0,
+  priority = 0x0,
+  buffer_id = 0x0,
+  out_port = 0,
+  flags = 0x2,
+  actions = [
+    output { port = OFPP_FLOOD, max_len = 0x0 },
+    nicira_dec_ttl {  },
+    bsn_set_tunnel_dst { dst = 0x0 }
+  ]
+}