diff --git a/python/common/frameio/third_party/__init__.py b/python/common/frameio/third_party/__init__.py
new file mode 100644
index 0000000..b0fb0b2
--- /dev/null
+++ b/python/common/frameio/third_party/__init__.py
@@ -0,0 +1,13 @@
+# Copyright 2017-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
diff --git a/python/common/frameio/third_party/oftest/LICENSE b/python/common/frameio/third_party/oftest/LICENSE
new file mode 100644
index 0000000..3216042
--- /dev/null
+++ b/python/common/frameio/third_party/oftest/LICENSE
@@ -0,0 +1,36 @@
+OpenFlow Test Framework
+
+Copyright (c) 2010 The Board of Trustees of The Leland Stanford
+Junior University
+
+Except where otherwise noted, this software is distributed under
+the OpenFlow Software License.  See
+http://www.openflowswitch.org/wp/legal/ for current details.
+
+We are making the OpenFlow specification and associated documentation
+(Software) available for public use and benefit with the expectation
+that others will use, modify and enhance the Software and contribute
+those enhancements back to the community. However, since we would like
+to make the Software available for broadest use, with as few
+restrictions as possible permission is hereby granted, free of charge,
+to any person obtaining a copy of this Software to deal in the
+Software under the copyrights without restriction, including without
+limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED -Y´AS IS¡, WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+The name and trademarks of copyright holder(s) may NOT be used in
+advertising or publicity pertaining to the Software or any derivatives
+without specific, written prior permission.
diff --git a/python/common/frameio/third_party/oftest/README.md b/python/common/frameio/third_party/oftest/README.md
new file mode 100644
index 0000000..f0cb649
--- /dev/null
+++ b/python/common/frameio/third_party/oftest/README.md
@@ -0,0 +1,6 @@
+Files in this directory are derived from the respective files
+in oftest (http://github.com/floodlight/oftest).
+ 
+For the licensing terms of these files, see LICENSE in this dir.
+ 
+
diff --git a/python/common/frameio/third_party/oftest/__init__.py b/python/common/frameio/third_party/oftest/__init__.py
new file mode 100644
index 0000000..b0fb0b2
--- /dev/null
+++ b/python/common/frameio/third_party/oftest/__init__.py
@@ -0,0 +1,13 @@
+# Copyright 2017-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
diff --git a/python/common/frameio/third_party/oftest/afpacket.py b/python/common/frameio/third_party/oftest/afpacket.py
new file mode 100644
index 0000000..9ae8075
--- /dev/null
+++ b/python/common/frameio/third_party/oftest/afpacket.py
@@ -0,0 +1,124 @@
+# Copyright 2017-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+AF_PACKET receive support
+
+When VLAN offload is enabled on the NIC Linux will not deliver the VLAN tag
+in the data returned by recv. Instead, it delivers the VLAN TCI in a control
+message. Python 2.x doesn't have built-in support for recvmsg, so we have to
+use ctypes to call it. The recv function exported by this module reconstructs
+the VLAN tag if it was offloaded.
+"""
+
+import struct
+from ctypes import *
+
+ETH_P_8021Q = 0x8100
+SOL_PACKET = 263
+PACKET_AUXDATA = 8
+TP_STATUS_VLAN_VALID = 1 << 4
+
+class struct_iovec(Structure):
+    _fields_ = [
+        ("iov_base", c_void_p),
+        ("iov_len", c_size_t),
+    ]
+
+class struct_msghdr(Structure):
+    _fields_ = [
+        ("msg_name", c_void_p),
+        ("msg_namelen", c_uint32),
+        ("msg_iov", POINTER(struct_iovec)),
+        ("msg_iovlen", c_size_t),
+        ("msg_control", c_void_p),
+        ("msg_controllen", c_size_t),
+        ("msg_flags", c_int),
+    ]
+
+class struct_cmsghdr(Structure):
+    _fields_ = [
+        ("cmsg_len", c_size_t),
+        ("cmsg_level", c_int),
+        ("cmsg_type", c_int),
+    ]
+
+class struct_tpacket_auxdata(Structure):
+    _fields_ = [
+        ("tp_status", c_uint),
+        ("tp_len", c_uint),
+        ("tp_snaplen", c_uint),
+        ("tp_mac", c_ushort),
+        ("tp_net", c_ushort),
+        ("tp_vlan_tci", c_ushort),
+        ("tp_padding", c_ushort),
+    ]
+
+libc = CDLL("libc.so.6")
+recvmsg = libc.recvmsg
+recvmsg.argtypes = [c_int, POINTER(struct_msghdr), c_int]
+recvmsg.retype = c_int
+
+def enable_auxdata(sk):
+    """
+    Ask the kernel to return the VLAN tag in a control message
+
+    Must be called on the socket before afpacket.recv.
+    """
+    sk.setsockopt(SOL_PACKET, PACKET_AUXDATA, 1)
+
+def recv(sk, bufsize):
+    """
+    Receive a packet from an AF_PACKET socket
+    @sk Socket
+    @bufsize Maximum packet size
+    """
+    buf = create_string_buffer(bufsize)
+
+    ctrl_bufsize = sizeof(struct_cmsghdr) + sizeof(struct_tpacket_auxdata) + sizeof(c_size_t)
+    ctrl_buf = create_string_buffer(ctrl_bufsize)
+
+    iov = struct_iovec()
+    iov.iov_base = cast(buf, c_void_p)
+    iov.iov_len = bufsize
+
+    msghdr = struct_msghdr()
+    msghdr.msg_name = None
+    msghdr.msg_namelen = 0
+    msghdr.msg_iov = pointer(iov)
+    msghdr.msg_iovlen = 1
+    msghdr.msg_control = cast(ctrl_buf, c_void_p)
+    msghdr.msg_controllen = ctrl_bufsize
+    msghdr.msg_flags = 0
+
+    rv = recvmsg(sk.fileno(), byref(msghdr), 0)
+    if rv < 0:
+        raise RuntimeError("recvmsg failed: rv=%d", rv)
+
+    # The kernel only delivers control messages we ask for. We
+    # only enabled PACKET_AUXDATA, so we can assume it's the
+    # only control message.
+    assert msghdr.msg_controllen >= sizeof(struct_cmsghdr)
+
+    cmsghdr = struct_cmsghdr.from_buffer(ctrl_buf) # pylint: disable=E1101
+    assert cmsghdr.cmsg_level == SOL_PACKET
+    assert cmsghdr.cmsg_type == PACKET_AUXDATA
+
+    auxdata = struct_tpacket_auxdata.from_buffer(ctrl_buf, sizeof(struct_cmsghdr)) # pylint: disable=E1101
+
+    if auxdata.tp_vlan_tci != 0 or auxdata.tp_status & TP_STATUS_VLAN_VALID:
+        # Insert VLAN tag
+        tag = struct.pack("!HH", ETH_P_8021Q, auxdata.tp_vlan_tci)
+        return buf.raw[:12] + tag + buf.raw[12:rv]
+    else:
+        return buf.raw[:rv]
diff --git a/python/common/frameio/third_party/oftest/netutils.py b/python/common/frameio/third_party/oftest/netutils.py
new file mode 100644
index 0000000..092d490
--- /dev/null
+++ b/python/common/frameio/third_party/oftest/netutils.py
@@ -0,0 +1,73 @@
+# Copyright 2017-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+Network utilities for the OpenFlow test framework
+"""
+
+###########################################################################
+##                                                                         ##
+## Promiscuous mode enable/disable                                         ##
+##                                                                         ##
+## Based on code from Scapy by Phillippe Biondi                            ##
+##                                                                         ##
+##                                                                         ##
+## This program is free software; you can redistribute it and/or modify it ##
+## under the terms of the GNU General Public License as published by the   ##
+## Free Software Foundation; either version 2, or (at your option) any     ##
+## later version.                                                          ##
+##                                                                         ##
+## This program is distributed in the hope that it will be useful, but     ##
+## WITHOUT ANY WARRANTY; without even the implied warranty of              ##
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU       ##
+## General Public License for more details.                                ##
+##                                                                         ##
+#############################################################################
+
+import socket
+from fcntl import ioctl
+import struct
+
+# From net/if_arp.h
+ARPHDR_ETHER = 1
+ARPHDR_LOOPBACK = 772
+
+# From bits/ioctls.h
+SIOCGIFHWADDR  = 0x8927          # Get hardware address
+SIOCGIFINDEX   = 0x8933          # name -> if_index mapping
+
+# From netpacket/packet.h
+PACKET_ADD_MEMBERSHIP  = 1
+PACKET_DROP_MEMBERSHIP = 2
+PACKET_MR_PROMISC      = 1
+
+# From bits/socket.h
+SOL_PACKET = 263
+
+def get_if(iff,cmd):
+  s=socket.socket()
+  ifreq = ioctl(s, cmd, struct.pack("16s16x",iff))
+  s.close()
+  return ifreq
+
+def get_if_index(iff):
+  return int(struct.unpack("I",get_if(iff, SIOCGIFINDEX)[16:20])[0])
+
+def set_promisc(s,iff,val=1):
+  mreq = struct.pack("IHH8s", get_if_index(iff), PACKET_MR_PROMISC, 0, "")
+  if val:
+      cmd = PACKET_ADD_MEMBERSHIP
+  else:
+      cmd = PACKET_DROP_MEMBERSHIP
+  s.setsockopt(SOL_PACKET, cmd, mreq)
+