diff --git a/src/python/oftest/oft12/testutils.py b/src/python/oftest/oft12/testutils.py
new file mode 100644
index 0000000..963208f
--- /dev/null
+++ b/src/python/oftest/oft12/testutils.py
@@ -0,0 +1,1517 @@
+
+import sys
+import logging
+from cStringIO import StringIO
+#import types
+
+import of12.cstruct as ofp
+import of12.match as oxm_field
+import of12.message as message
+import of12.action as action
+import of12.parse as parse
+import of12.instruction as instruction
+from packet import Packet
+
+
+try:
+    logging.getLogger("scapy.runtime").setLevel(logging.ERROR)
+    from scapy.all import *
+    #load_contrib("mpls")
+    #TODO This should really be in scapy!
+    #bind_layers(MPLS, MPLS, s=0)
+except ImportError:
+    sys.exit("Need to install scapy for packet parsing")
+
+global skipped_test_count
+skipped_test_count = 0
+
+# Some useful defines
+IP_ETHERTYPE = 0x800
+IPV6_ETHERTYPE = 0x86dd
+ETHERTYPE_VLAN = 0x8100
+ETHERTYPE_MPLS = 0x8847
+TCP_PROTOCOL = 0x6
+UDP_PROTOCOL = 0x11
+ICMPV6_PROTOCOL = 0x3a
+
+
+
+def clear_switch(parent, port_list, logger):
+    """
+    Clear the switch configuration
+
+    @param parent Object implementing controller and assert equal
+    @param logger Logging object
+    """
+    parent.assertTrue(len(port_list) > 2, "Not enough ports for test")
+    for port in port_list:
+        clear_port_config(parent, port, logger)
+    initialize_table_config(parent.controller, logger)
+    delete_all_flows(parent.controller, logger)
+    delete_all_groups(parent.controller, logger)
+
+    return port_list
+
+def initialize_table_config(ctrl, logger):
+    """
+    Initialize all table configs to default setting ("CONTROLLER")
+    @param ctrl The controller object for the test
+    """
+    logger.info("Initializing all table configs")
+    request = message.table_mod()  
+    request.config = ofp.OFPTC_TABLE_MISS_CONTROLLER
+    rv = 0
+    for table_id in [0, 1, 2, 3, 4, 5, 6, 7]:
+        request.table_id = table_id
+        rv |= ctrl.message_send(request)
+    return rv
+
+def delete_all_flows(ctrl, logger):
+    """
+    Delete all flows on the switch
+    @param ctrl The controller object for the test
+    @param logger Logging object
+    """
+
+    logger.info("Deleting all flows")
+    #DEFAULT_TABLE_COUNT = 4
+    return delete_all_flows_one_table(ctrl, logger, table_id=0xff)
+
+def delete_all_flows_one_table(ctrl, logger, table_id=0):
+    """
+    Delete all flows on a table
+    @param ctrl The controller object for the test
+    @param logger Logging object
+    @param table_id Table ID
+    """
+    logger.info("Deleting all flows on table ID: " + str(table_id))
+    msg = message.flow_mod()
+    msg.out_port = ofp.OFPP_ANY
+    msg.out_group = ofp.OFPG_ANY
+    msg.command = ofp.OFPFC_DELETE
+    msg.buffer_id = 0xffffffff
+    msg.table_id = table_id
+    logger.debug(msg.show())
+
+    return ctrl.message_send(msg)
+
+def delete_all_groups(ctrl, logger):
+    """
+    Delete all groups on the switch
+    @param ctrl The controller object for the test
+    @param logger Logging object
+    """
+    
+    logger.info("Deleting all groups")
+    msg = message.group_mod()
+    msg.group_id = ofp.OFPG_ALL
+    msg.command = ofp.OFPGC_DELETE
+    logger.debug(msg.show())
+    return ctrl.message_send(msg)
+
+def clear_port_config(parent, port, logger):
+    """
+    Clear the port configuration 
+
+    @param parent Object implementing controller and assert equal
+    @param logger Logging object
+    """
+    rv = port_config_set(parent.controller, port,
+                         0, 0, logger)
+    parent.assertEqual(rv, 0, "Failed to reset port config")
+
+def simple_tcp_packet(dl_dst='00:01:02:03:04:05',
+                      dl_src='00:06:07:08:09:0a',
+                      vlan_tags=[],  # {type,vid,pcp,cfi}  TODO type
+                      mpls_tags=[],  # {type,label,tc,ttl} TODO type 
+                      ip_src='192.168.0.1',
+                      ip_dst='192.168.0.2',
+                      ip_tos=0,
+                      ip_ttl=64,
+                      tcp_sport=1234,
+                      tcp_dport=80,
+                      payload_len = 46):
+    pkt = Ether(dst=dl_dst, src=dl_src)
+
+    vlans_num = 0
+    while len(vlan_tags):
+        tag = vlan_tags.pop(0)
+        dot1q = Dot1Q()
+        if 'vid' in tag:
+            dot1q.vlan = tag['vid']
+        if 'pcp' in tag:
+            dot1q.prio = tag['pcp']
+        if 'cfi' in tag:
+            dot1q.id = tag['cfi']
+        pkt = pkt / dot1q 
+        if 'type' in tag:
+            if vlans_num == 0:
+                pkt[Ether].setfieldval('type', tag['type'])
+            else:
+                pkt[Dot1Q:vlans_num].setfieldval('type', tag['type'])
+        vlans_num+=1
+
+    mplss_num = 0
+    while len(mpls_tags):
+        tag = mpls_tags.pop(0)
+        mpls = MPLS()
+        if 'label' in tag:
+            mpls.label = tag['label']
+        if 'tc' in tag:
+            mpls.cos = tag['tc']
+        if 'ttl' in tag:
+            mpls.ttl = tag['ttl']
+        pkt = pkt / mpls
+        if 'type' in tag:
+            if mplss_num == 0:
+                if vlans_num == 0:
+                    pkt[Ether].setfieldval('type', tag['type'])
+                else:
+                    pkt[Dot1Q:vlans_num].setfieldval('type', tag['type'])
+        mplss_num+=1
+
+    pkt = pkt / IP(src=ip_src, dst=ip_dst, tos=ip_tos, ttl=ip_ttl) \
+              / TCP(sport=tcp_sport, dport=tcp_dport)
+    
+    pkt = pkt / ("D" * payload_len)
+
+    return pkt
+
+def simple_icmp_packet(dl_dst='00:01:02:03:04:05',
+                       dl_src='00:06:07:08:09:0a',
+                       vlan_tags=[],  # {type,vid,pcp,cfi}  TODO type
+                       mpls_tags=[],  # {type,label,tc,ttl} TODO type 
+                       ip_src='192.168.0.1',
+                       ip_dst='192.168.0.2',
+                       ip_tos=0,
+                       ip_ttl=64,
+                       icmp_type=8, # ICMP_ECHO_REQUEST
+                       icmp_code=0,
+                       payload_len=0):
+
+    #TODO simple_ip_packet
+    pkt = Ether(dst=dl_dst, src=dl_src)
+
+    vlans_num = 0
+    while len(vlan_tags):
+        tag = vlan_tags.pop(0)
+        dot1q = Dot1Q()
+        if 'vid' in tag:
+            dot1q.vlan = tag['vid']
+        if 'pcp' in tag:
+            dot1q.prio = tag['pcp']
+        if 'cfi' in tag:
+            dot1q.id = tag['cfi']
+        pkt = pkt / dot1q 
+        if 'type' in tag:
+            if vlans_num == 0:
+                pkt[Ether].setfieldval('type', tag['type'])
+            else:
+                pkt[Dot1Q:vlans_num].setfieldval('type', tag['type'])
+        vlans_num+=1
+
+    mplss_num = 0
+    while len(mpls_tags):
+        tag = mpls_tags.pop(0)
+        mpls = MPLS()
+        if 'label' in tag:
+            mpls.label = tag['label']
+        if 'tc' in tag:
+            mpls.cos = tag['tc']
+        if 'ttl' in tag:
+            mpls.ttl = tag['ttl']
+        pkt = pkt / mpls
+        if 'type' in tag:
+            if mplss_num == 0:
+                if vlans_num == 0:
+                    pkt[Ether].setfieldval('type', tag['type'])
+                else:
+                    pkt[Dot1Q:vlans_num].setfieldval('type', tag['type'])
+        mplss_num+=1
+
+    pkt = pkt / IP(src=ip_src, dst=ip_dst, tos=ip_tos, ttl=ip_ttl) \
+              / ICMP(type=icmp_type, code=icmp_code)
+
+    pkt = pkt / ("D" * payload_len)
+
+    return pkt
+
+def simple_ipv6_packet(pktlen=100, 
+                      dl_dst='00:01:02:03:04:05',
+                      dl_src='00:06:07:08:09:0a',
+                      dl_vlan_enable=False,
+                      dl_vlan=0,
+                      dl_vlan_pcp=0,
+                      dl_vlan_cfi=0,
+                      ip_src='fe80::2420:52ff:fe8f:5189',
+                      ip_dst='fe80::2420:52ff:fe8f:5190',
+                      ip_tos=0,
+                      tcp_sport=0,
+                      tcp_dport=0, 
+                      EH = False, 
+                      EHpkt = IPv6ExtHdrDestOpt()
+                      ):
+
+    """
+    Return a simple IPv6 packet 
+
+    Supports a few parameters:
+    @param len Length of packet in bytes w/o CRC
+    @param dl_dst Destinatino MAC
+    @param dl_src Source MAC
+    @param dl_vlan_enable True if the packet is with vlan, False otherwise
+    @param dl_vlan VLAN ID
+    @param dl_vlan_pcp VLAN priority
+    @param ip_src IPv6 source
+    @param ip_dst IPv6 destination
+    @param ip_tos IP ToS
+    @param tcp_dport TCP destination port
+    @param ip_sport TCP source port
+
+    """
+    # Note Dot1Q.id is really CFI
+    if (dl_vlan_enable):
+        pkt = Ether(dst=dl_dst, src=dl_src)/ \
+            Dot1Q(prio=dl_vlan_pcp, id=dl_vlan_cfi, vlan=dl_vlan)/ \
+            IPv6(src=ip_src, dst=ip_dst)
+
+    else:
+        pkt = Ether(dst=dl_dst, src=dl_src)/ \
+            IPv6(src=ip_src, dst=ip_dst)
+
+    # Add IPv6 Extension Headers 
+    if EH:
+        pkt = pkt / EHpkt
+
+    if (tcp_sport >0 and tcp_dport >0):
+        pkt = pkt / TCP(sport=tcp_sport, dport=tcp_dport)
+
+    if pktlen > len(pkt) :
+        pkt = pkt/("D" * (pktlen - len(pkt)))
+
+    return pkt
+
+def simple_icmpv6_packet(pktlen=100, 
+                      dl_dst='00:01:02:03:04:05',
+                      dl_src='00:06:07:08:09:0a',
+                      dl_vlan_enable=False,
+                      dl_vlan=0,
+                      dl_vlan_pcp=0,
+                      dl_vlan_cfi=0,
+                      ip_src='fe80::2420:52ff:fe8f:5189',
+                      ip_dst='fe80::2420:52ff:fe8f:5190',
+                      ip_tos=0,
+                      tcp_sport=0,
+                      tcp_dport=0, 
+                      EH = False, 
+                      EHpkt = IPv6ExtHdrDestOpt(),
+                      route_adv = False,
+                      sll_enabled = False
+                      ):
+
+    """
+    Return a simple dataplane ICMPv6 packet 
+
+    Supports a few parameters:
+    @param len Length of packet in bytes w/o CRC
+    @param dl_dst Destinatino MAC
+    @param dl_src Source MAC
+    @param dl_vlan_enable True if the packet is with vlan, False otherwise
+    @param dl_vlan VLAN ID
+    @param dl_vlan_pcp VLAN priority
+    @param ip_src IPv6 source
+    @param ip_dst IPv6 destination
+    @param ip_tos IP ToS
+    @param tcp_dport TCP destination port
+    @param ip_sport TCP source port
+    
+    """
+    if (dl_vlan_enable):
+        pkt = Ether(dst=dl_dst, src=dl_src)/ \
+            Dot1Q(prio=dl_vlan_pcp, id=dl_vlan_cfi, vlan=dl_vlan)/ \
+            IPv6(src=ip_src, dst=ip_dst)
+
+    else:
+        pkt = Ether(dst=dl_dst, src=dl_src)/ \
+            IPv6(src=ip_src, dst=ip_dst)
+            
+            
+    # Add IPv6 Extension Headers 
+    if EH:
+        pkt = pkt / EHpkt
+
+    if route_adv:
+        pkt = pkt/ \
+        ICMPv6ND_RA(chlim=255, H=0L, M=0L, O=1L, routerlifetime=1800, P=0L, retranstimer=0, prf=0L, res=0L)/ \
+        ICMPv6NDOptPrefixInfo(A=1L, res2=0, res1=0L, L=1L, len=4, prefix='fd00:141:64:1::', R=0L, validlifetime=1814400, prefixlen=64, preferredlifetime=604800, type=3)
+        if sll_enabled :
+            pkt = pkt/ \
+            ICMPv6NDOptSrcLLAddr(type=1, len=1, lladdr='66:6f:df:2d:7c:9c')
+    else :
+        pkt = pkt/ \
+            ICMPv6EchoRequest()
+    if (tcp_sport >0 and tcp_dport >0):
+        pkt = pkt / TCP(sport=tcp_sport, dport=tcp_dport)
+
+    if pktlen > len(pkt) :
+        pkt = pkt/("D" * (pktlen - len(pkt)))
+
+    return pkt
+
+
+def do_barrier(ctrl):
+    b = message.barrier_request()
+    ctrl.transact(b)
+
+
+def port_config_get(controller, port_no, logger):
+    """
+    Get a port's configuration
+
+    Gets the switch feature configuration and grabs one port's
+    configuration
+
+    @returns (hwaddr, config, advert) The hwaddress, configuration and
+    advertised values
+    """
+    request = message.features_request()
+    reply, _ = controller.transact(request, timeout=2)
+    if reply is None:
+        logger.warn("Get feature request failed")
+        return None, None, None
+    logger.debug(reply.show())
+    for idx in range(len(reply.ports)):
+        if reply.ports[idx].port_no == port_no:
+            return (reply.ports[idx].hw_addr, reply.ports[idx].config,
+                    reply.ports[idx].advertised)
+    
+    logger.warn("Did not find port number for port config")
+    return None, None, None
+
+def port_config_set(controller, port_no, config, mask, logger):
+    """
+    Set the port configuration according the given parameters
+
+    Gets the switch feature configuration and updates one port's
+    configuration value according to config and mask
+    """
+    logger.info("Setting port " + str(port_no) + " to config " + str(config))
+    request = message.features_request()
+    reply, _ = controller.transact(request, timeout=2)
+    if reply is None:
+        return -1
+    logger.debug(reply.show())
+    for idx in range(len(reply.ports)):
+        if reply.ports[idx].port_no == port_no:
+            break
+    if idx >= len(reply.ports):
+        return -1
+    mod = message.port_mod()
+    mod.port_no = port_no
+    mod.hw_addr = reply.ports[idx].hw_addr
+    mod.config = config
+    mod.mask = mask
+    mod.advertise = reply.ports[idx].advertised
+    rv = controller.message_send(mod)
+    return rv
+
+def receive_pkt_check(dataplane, pkt, yes_ports, no_ports, assert_if, logger):
+    """
+    Check for proper receive packets across all ports
+    @param dataplane The dataplane object
+    @param pkt Expected packet; may be None if yes_ports is empty
+    @param yes_ports Set or list of ports that should recieve packet
+    @param no_ports Set or list of ports that should not receive packet
+    @param assert_if Object that implements assertXXX
+    """
+    for ofport in yes_ports:
+        logger.debug("Checking for pkt on port " + str(ofport))
+        (_, rcv_pkt, _) = dataplane.poll(
+            port_number=ofport, timeout=1)
+        assert_if.assertTrue(rcv_pkt is not None, 
+                             "Did not receive pkt on " + str(ofport))
+        assert_if.assertEqual(str(pkt), str(rcv_pkt),
+                              "Response packet does not match send packet " +
+                              "on port " + str(ofport))
+
+    for ofport in no_ports:
+        logger.debug("Negative check for pkt on port " + str(ofport))
+        (_, rcv_pkt, _) = dataplane.poll(
+            port_number=ofport, timeout=1)
+        assert_if.assertTrue(rcv_pkt is None, 
+                             "Unexpected pkt on port " + str(ofport))
+
+
+def pkt_verify(parent, rcv_pkt, exp_pkt):
+    if str(exp_pkt) != str(rcv_pkt):
+        parent.logger.error("ERROR: Packet match failed.")
+        parent.logger.debug("Expected (" + str(len(exp_pkt)) + ")")
+        parent.logger.debug(str(exp_pkt).encode('hex'))
+        sys.stdout = tmpout = StringIO()
+        exp_pkt.show()
+        sys.stdout = sys.__stdout__
+        parent.logger.debug(tmpout.getvalue())
+        parent.logger.debug("Received (" + str(len(rcv_pkt)) + ")")
+        parent.logger.debug(str(rcv_pkt).encode('hex'))
+        sys.stdout = tmpout = StringIO()
+        Ether(rcv_pkt).show()
+        sys.stdout = sys.__stdout__
+        parent.logger.debug(tmpout.getvalue())
+    parent.assertEqual(str(exp_pkt), str(rcv_pkt),
+                       "Packet match error")
+    
+    return rcv_pkt
+
+def receive_pkt_verify(parent, egr_port, exp_pkt):
+    """
+    Receive a packet and verify it matches an expected value
+
+    parent must implement dataplane, assertTrue and assertEqual
+    """
+    (rcv_port, rcv_pkt, _) = parent.dataplane.poll(port_number=egr_port,
+                                                          timeout=1)
+
+    if exp_pkt is None:
+        if rcv_pkt is None:
+            return None
+        else:
+            parent.logger.error("ERROR: Received unexpected packet from " + str(egr_port));
+            return rcv_pkt
+
+    if rcv_pkt is None:
+        parent.logger.error("ERROR: No packet received from " + str(egr_port))
+
+    parent.assertTrue(rcv_pkt is not None,
+                      "Did not receive packet port " + str(egr_port))
+    parent.logger.debug("Packet len " + str(len(rcv_pkt)) + " in on " + 
+                    str(rcv_port))
+
+    return pkt_verify(parent, rcv_pkt, exp_pkt)
+
+def packetin_verify(parent, exp_pkt):
+    """
+    Receive packet_in and verify it matches an expected value
+    """
+    (response, _) = parent.controller.poll(ofp.OFPT_PACKET_IN, 2)
+
+    parent.assertTrue(response is not None, 'Packet in message not received')
+    if str(exp_pkt) != response.data:
+        parent.logger.debug("pkt  len " + str(len(str(exp_pkt))) + ": "
+                            + str(exp_pkt).encode('hex'))
+        parent.logger.debug("resp len " + str(len(str(response.data))) + ": "
+                            + str(response.data).encode('hex'))
+    parent.assertEqual(str(exp_pkt), response.data,
+                     'PACKET_IN packet does not match send packet')
+
+def match_verify(parent, req_match, res_match):
+    """
+    Verify flow matches agree; if they disagree, report where
+
+    parent must implement assertEqual
+    Use str() to ensure content is compared and not pointers
+    """
+
+    parent.assertEqual(req_match.wildcards, res_match.wildcards,
+                       'Match failed: wildcards: ' + hex(req_match.wildcards) +
+                       " != " + hex(res_match.wildcards))
+    parent.assertEqual(req_match.in_port, res_match.in_port,
+                       'Match failed: in_port: ' + str(req_match.in_port) +
+                       " != " + str(res_match.in_port))
+    parent.assertEqual(str(req_match.dl_src), str(res_match.dl_src),
+                       'Match failed: dl_src: ' + str(req_match.dl_src) +
+                       " != " + str(res_match.dl_src))
+    parent.assertEqual(str(req_match.dl_dst), str(res_match.dl_dst),
+                       'Match failed: dl_dst: ' + str(req_match.dl_dst) +
+                       " != " + str(res_match.dl_dst))
+    parent.assertEqual(req_match.dl_vlan, res_match.dl_vlan,
+                       'Match failed: dl_vlan: ' + str(req_match.dl_vlan) +
+                       " != " + str(res_match.dl_vlan))
+    parent.assertEqual(req_match.dl_vlan_pcp, res_match.dl_vlan_pcp,
+                       'Match failed: dl_vlan_pcp: ' + 
+                       str(req_match.dl_vlan_pcp) + " != " + 
+                       str(res_match.dl_vlan_pcp))
+    parent.assertEqual(req_match.dl_type, res_match.dl_type,
+                       'Match failed: dl_type: ' + str(req_match.dl_type) +
+                       " != " + str(res_match.dl_type))
+
+    if (not(req_match.wildcards & ofp.OFPFW_DL_TYPE)
+        and (req_match.dl_type == IP_ETHERTYPE)):
+        parent.assertEqual(req_match.nw_tos, res_match.nw_tos,
+                           'Match failed: nw_tos: ' + str(req_match.nw_tos) +
+                           " != " + str(res_match.nw_tos))
+        parent.assertEqual(req_match.nw_proto, res_match.nw_proto,
+                           'Match failed: nw_proto: ' + str(req_match.nw_proto) +
+                           " != " + str(res_match.nw_proto))
+        parent.assertEqual(req_match.nw_src, res_match.nw_src,
+                           'Match failed: nw_src: ' + str(req_match.nw_src) +
+                           " != " + str(res_match.nw_src))
+        parent.assertEqual(req_match.nw_dst, res_match.nw_dst,
+                           'Match failed: nw_dst: ' + str(req_match.nw_dst) +
+                           " != " + str(res_match.nw_dst))
+
+        if (not(req_match.wildcards & ofp.OFPFW_NW_PROTO)
+            and ((req_match.nw_proto == TCP_PROTOCOL)
+                 or (req_match.nw_proto == UDP_PROTOCOL))):
+            parent.assertEqual(req_match.tp_src, res_match.tp_src,
+                               'Match failed: tp_src: ' + 
+                               str(req_match.tp_src) +
+                               " != " + str(res_match.tp_src))
+            parent.assertEqual(req_match.tp_dst, res_match.tp_dst,
+                               'Match failed: tp_dst: ' + 
+                               str(req_match.tp_dst) +
+                               " != " + str(res_match.tp_dst))
+
+def flow_removed_verify(parent, request=None, pkt_count=-1, byte_count=-1):
+    """
+    Receive a flow removed msg and verify it matches expected
+
+    @params parent Must implement controller, assertEqual
+    @param pkt_count If >= 0, verify packet count
+    @param byte_count If >= 0, verify byte count
+    """
+    (response, _) = parent.controller.poll(ofp.OFPT_FLOW_REMOVED, 2)
+    parent.assertTrue(response is not None, 'No flow removed message received')
+
+    if request is None:
+        return
+
+    parent.assertEqual(request.cookie, response.cookie,
+                       "Flow removed cookie error: " +
+                       hex(request.cookie) + " != " + hex(response.cookie))
+
+    req_match = request.match
+    res_match = response.match
+    verifyMatchField(req_match, res_match)
+
+    if (req_match.wildcards != 0):
+        parent.assertEqual(request.priority, response.priority,
+                           'Flow remove prio mismatch: ' + 
+                           str(request.priority) + " != " + 
+                           str(response.priority))
+        parent.assertEqual(response.reason, ofp.OFPRR_HARD_TIMEOUT,
+                           'Flow remove reason is not HARD TIMEOUT:' +
+                           str(response.reason))
+        if pkt_count >= 0:
+            parent.assertEqual(response.packet_count, pkt_count,
+                               'Flow removed failed, packet count: ' + 
+                               str(response.packet_count) + " != " +
+                               str(pkt_count))
+        if byte_count >= 0:
+            parent.assertEqual(response.byte_count, byte_count,
+                               'Flow removed failed, byte count: ' + 
+                               str(response.byte_count) + " != " + 
+                               str(byte_count))
+def flow_msg_create(parent, pkt, ing_port=0, match_fields=None, instruction_list=None, 
+                    action_list=None,wildcards=0, egr_port=None, 
+                    egr_queue=None, table_id=0, check_expire=False):
+    """
+    Multi-purpose flow_mod creation utility
+
+    Match on packet with given wildcards.  
+    See flow_match_test for other parameter descriptoins
+   
+    if egr_queue is set
+             append an out_queue action to egr_queue to the actions_list
+    else if egr_port is set:  
+             append an output action to egr_port to the actions_list
+    if the instruction_list is empty, 
+        append an APPLY instruction to it
+    Add the action_list to the first write or apply instruction
+    
+    @param egr_queue if not None, make the output an enqueue action
+    @param table_id Table ID for writing a flow_mod
+    """
+
+    if match_fields is None:
+        match_fields = parse.packet_to_flow_match(pkt)
+    parent.assertTrue(match_fields is not None, "Flow match from pkt failed")
+    in_port = oxm_field.in_port(ing_port)
+    match_fields.add(in_port) 
+    request = message.flow_mod()
+    request.match_fields = match_fields
+    request.buffer_id = 0xffffffff
+    request.table_id = table_id
+    
+    if check_expire:
+        request.flags |= ofp.OFPFF_SEND_FLOW_REM
+        request.hard_timeout = 1    
+    
+    if action_list is None:
+        action_list = []
+    if instruction_list is None:
+        instruction_list = []
+    
+    # Set up output/enqueue action if directed
+    if egr_queue is not None:
+        parent.assertTrue(egr_port is not None, "Egress port not set")
+        act = action.action_set_queue()
+        act.port = egr_port
+        act.queue_id = egr_queue
+        action_list.append(act)
+    elif egr_port is not None:
+        act = action.action_output()
+        act.port = egr_port
+        action_list.append(act)
+        
+    inst = None
+    if len(instruction_list) == 0: 
+        inst = instruction.instruction_apply_actions()
+        instruction_list.append(inst)
+    else:
+        for inst in instruction_list:
+            if (inst.type == ofp.OFPIT_WRITE_ACTIONS or
+                inst.type == ofp.OFPIT_APPLY_ACTIONS):
+                break
+
+    # add all the actions to the last inst
+    for act in action_list:
+        parent.logger.debug("Adding action " + act.show())
+        rv = inst.actions.add(act)
+        parent.assertTrue(rv, "Could not add action" + act.show())
+    # NOTE that the inst has already been added to the flow_mod
+
+    # add all the instrutions to the flow_mod
+    for i in instruction_list: 
+        parent.logger.debug("Adding instruction " + inst.show())
+        rv = request.instructions.add(i)
+        parent.assertTrue(rv, "Could not add instruction " + i.show())
+
+ 
+    parent.logger.debug(request.show())
+    return request
+
+def flow_msg_install(parent, request, clear_table=True):
+    """
+    Install a flow mod message in the switch
+
+    @param parent Must implement controller, assertEqual, assertTrue
+    @param request The request, all set to go
+    @param clear_table If true, clear the flow table before installing
+    """
+    if clear_table:
+        parent.logger.debug("Clear flow table")
+        if request.table_id:
+            table_id = request.table_id
+        else:
+            table_id = 0
+        rc = delete_all_flows_one_table(parent.controller,
+                                        parent.logger,
+                                        table_id)
+        parent.assertEqual(rc, 0, "Failed to delete all flows on table: "
+                           + str(table_id))
+        do_barrier(parent.controller)
+
+    parent.logger.debug("Insert flow::\n%s" % request.show())
+    rv = parent.controller.message_send(request)
+    parent.assertTrue(rv != -1, "Error installing flow mod")
+    do_barrier(parent.controller)
+
+def error_verify(parent, exp_type, exp_code):
+    """
+    Receive an error msg and verify if it is as expected
+
+    @param parent Must implement controller, assertEqual
+    @param exp_type Expected error type
+    @param exp_code Expected error code
+    """
+    (response, raw) = parent.controller.poll(ofp.OFPT_ERROR, 2)
+    parent.assertTrue(response is not None, 'No error message received')
+
+    if (exp_type is None) or (exp_code is None):
+        parent.logger.debug("Parametrs are not sufficient")
+        return
+
+    parent.assertEqual(exp_type, response.type,
+                       'Error message type mismatch: ' +
+                       str(exp_type) + " != " +
+                       str(response.type))
+    parent.assertEqual(exp_code, response.code,
+                       'Error message code mismatch: ' +
+                       str(exp_code) + " != " +
+                       str(response.code))
+
+def flow_match_test_port_pair(parent, ing_port, egr_port, match=None, 
+                              wildcards=0, mask=None,
+                              dl_vlan=-1, pkt=None, exp_pkt=None,
+                              apply_action_list=None, check_expire=False):
+    """
+    Flow match test on single TCP packet
+
+    Run test with packet through switch from ing_port to egr_port
+    See flow_match_test for parameter descriptions
+    """
+
+    parent.logger.info("Pkt match test: " + str(ing_port) + " to " + str(egr_port))
+    parent.logger.debug("  WC: " + hex(wildcards) + " vlan: " + str(dl_vlan) +
+                    " expire: " + str(check_expire))
+    if pkt is None:
+        if dl_vlan >= 0:
+            pkt = simple_tcp_packet(vlan_tags=[{'vid': dl_vlan}])
+        else:
+            pkt = simple_tcp_packet()
+
+    match = parse.packet_to_flow_match(pkt)
+    parent.assertTrue(match is not None, "Flow match from pkt failed")
+
+    if mask is not None:
+        match.dl_src_mask = mask['dl_src']
+        match.dl_dst_mask = mask['dl_dst']
+        match.nw_src_mask = mask['nw_src']
+        match.nw_dst_mask = mask['nw_dst']
+        #Set unmatching values on corresponding match fields
+        for i in range(ofp.OFP_ETH_ALEN):
+            match.dl_src[i] = match.dl_src[i] ^ match.dl_src_mask[i]
+            match.dl_dst[i] = match.dl_dst[i] ^ match.dl_dst_mask[i]
+        match.nw_src = match.nw_src ^ match.nw_src_mask
+        match.nw_dst = match.nw_dst ^ match.nw_dst_mask
+
+    request = flow_msg_create(parent, pkt, ing_port=ing_port, 
+                              match=match,
+                              wildcards=wildcards, egr_port=egr_port,
+                              action_list=apply_action_list)
+
+    flow_msg_install(parent, request)
+
+    parent.logger.debug("Send packet: " + str(ing_port) + " to " + str(egr_port))
+    parent.dataplane.send(ing_port, str(pkt))
+
+    if exp_pkt is None:
+        exp_pkt = pkt
+    receive_pkt_verify(parent, egr_port, exp_pkt)
+
+    if check_expire:
+        #@todo Not all HW supports both pkt and byte counters
+        flow_removed_verify(parent, request, pkt_count=1, byte_count=len(pkt))
+def flow_match_test(parent, port_map, match=None, wildcards=0,
+                    mask=None, dl_vlan=-1, pkt=None,
+                    exp_pkt=None, apply_action_list=None,
+                    check_expire=False,  max_test=0):
+    """
+    Run flow_match_test_port_pair on all port pairs
+
+    @param max_test If > 0 no more than this number of tests are executed.
+    @param parent Must implement controller, dataplane, assertTrue, assertEqual
+    and logger
+    @param pkt If not None, use this packet for ingress
+    @param match If not None, use this value in flow_mod
+    @param wildcards For flow match entry
+    @param mask DL/NW address bit masks as a dictionary. If set, it is tested
+    against the corresponding match fields with the opposite values
+    @param dl_vlan If not -1, and pkt is None, create a pkt w/ VLAN tag
+    @param exp_pkt If not None, use this as the expected output pkt; els use pkt
+    @param action_list Additional actions to add to flow mod
+    @param check_expire Check for flow expiration message
+    """
+    of_ports = port_map.keys()
+    of_ports.sort()
+    parent.assertTrue(len(of_ports) > 1, "Not enough ports for test")
+    test_count = 0
+
+    for ing_idx in range(len(of_ports)):
+        ingress_port = of_ports[ing_idx]
+        for egr_idx in range(len(of_ports)):
+            if egr_idx == ing_idx:
+                continue
+            egress_port = of_ports[egr_idx]
+            flow_match_test_port_pair(parent, ingress_port, egress_port, 
+                                      match=match, wildcards=wildcards,
+                                      dl_vlan=dl_vlan, mask=mask,
+                                      pkt=pkt, exp_pkt=exp_pkt,
+                                      apply_action_list=apply_action_list,
+                                      check_expire=check_expire)
+            test_count += 1
+            if (max_test > 0) and (test_count >= max_test):
+                parent.logger.info("Ran " + str(test_count) + " tests; exiting")
+                return
+
+def flow_match_test_port_pair_vlan(parent, ing_port, egr_port, wildcards=0,
+                                   dl_vlan=ofp.OFPVID_NONE, dl_vlan_pcp=0,
+                                   dl_vlan_type=ETHERTYPE_VLAN,
+                                   dl_vlan_int=-1, dl_vlan_pcp_int=0,
+                                   vid_match=ofp.OFPVID_NONE, pcp_match=0,
+                                   exp_vid=-1, exp_pcp=0,
+                                   exp_vlan_type=ETHERTYPE_VLAN,
+                                   match_exp=True,
+                                   add_tag_exp=False,
+                                   exp_msg=ofp.OFPT_FLOW_REMOVED,
+                                   exp_msg_type=0, exp_msg_code=0,
+                                   pkt=None, exp_pkt=None,
+                                   action_list=None, check_expire=False):
+    """
+    Flow match test for various vlan matching patterns on single TCP packet
+
+    Run test with packet through switch from ing_port to egr_port
+    See flow_match_test_vlan for parameter descriptions
+    """
+    parent.logger.info("Pkt match test: " + str(ing_port) + " to " + str(egr_port))
+    parent.logger.debug("  WC: " + hex(wildcards) + " vlan: " + str(dl_vlan) +
+                    " expire: " + str(check_expire))
+    if pkt is None:
+        if dl_vlan >= 0 and dl_vlan != ofp.OFPVID_NONE:
+            if dl_vlan_int >= 0 and dl_vlan_int != ofp.OFPVID_NONE:
+                pkt = simple_tcp_packet(
+                        vlan_tags=[{'type': dl_vlan_type, 'vid': dl_vlan, 'pcp': dl_vlan_pcp},
+                                   {'vid': dl_vlan_int, 'pcp': dl_vlan_pcp_int}])
+            else:
+                pkt = simple_tcp_packet(
+                        vlan_tags=[{'type': dl_vlan_type, 'vid': dl_vlan, 'pcp': dl_vlan_pcp}])
+        else:
+            pkt = simple_tcp_packet()
+
+    if exp_pkt is None:
+        if exp_vid >= 0 and exp_vid != ofp.OFPVID_NONE:
+            if add_tag_exp:
+                if dl_vlan >= 0 and dl_vlan != ofp.OFPVID_NONE:
+                    if dl_vlan_int >= 0 and dl_vlan_int != ofp.OFPVID_NONE:
+                        exp_pkt = simple_tcp_packet(
+                                    vlan_tags=[{'type': exp_vlan_type, 'vid': exp_vid, 'pcp': exp_pcp},
+                                               {'type': dl_vlan_type, 'vid': dl_vlan, 'pcp': dl_vlan_pcp},
+                                               {'vid': dl_vlan_int, 'pcp': dl_vlan_pcp_int}])
+                    else:
+                        exp_pkt = simple_tcp_packet(
+                                    vlan_tags=[{'type': exp_vlan_type, 'vid': exp_vid, 'pcp': exp_pcp},
+                                               {'type': dl_vlan_type, 'vid': dl_vlan, 'pcp': dl_vlan_pcp}])
+                else:
+                    exp_pkt = simple_tcp_packet(
+                                vlan_tags=[{'type': exp_vlan_type, 'vid': exp_vid, 'pcp': exp_pcp}])
+            else:
+                if dl_vlan_int >= 0:
+                    exp_pkt = simple_tcp_packet(
+                                vlan_tags=[{'type': exp_vlan_type, 'vid': exp_vid, 'pcp': exp_pcp},
+                                           {'vid': dl_vlan_int, 'pcp': dl_vlan_pcp_int}])
+
+                else:
+                    exp_pkt = simple_tcp_packet(
+                                vlan_tags=[{'type': exp_vlan_type, 'vid': exp_vid, 'pcp': exp_pcp}])
+        else:
+            #subtract action
+            if dl_vlan_int >= 0:
+                exp_pkt = simple_tcp_packet(
+                            vlan_tags=[{'vid': dl_vlan_int, 'pcp': dl_vlan_pcp_int}])
+            else:
+                exp_pkt = simple_tcp_packet()
+
+    match = parse.packet_to_flow_match(pkt)
+    parent.assertTrue(match is not None, "Flow match from pkt failed")
+
+    match.dl_vlan = vid_match
+    match.dl_vlan_pcp = pcp_match
+    match.wildcards = wildcards
+
+    request = flow_msg_create(parent, pkt, ing_port=ing_port,
+                              wildcards=wildcards,
+                              match=match,
+                              egr_port=egr_port,
+                              action_list=action_list)
+
+    flow_msg_install(parent, request)
+
+    parent.logger.debug("Send packet: " + str(ing_port) + " to " + str(egr_port))
+    parent.logger.debug("Sent:" + str(pkt).encode('hex'))
+    parent.dataplane.send(ing_port, str(pkt))
+
+    if match_exp:
+        receive_pkt_verify(parent, egr_port, exp_pkt)
+        if check_expire:
+            #@todo Not all HW supports both pkt and byte counters
+            flow_removed_verify(parent, request, pkt_count=1, byte_count=len(pkt))
+    else:
+        if exp_msg is ofp.OFPT_FLOW_REMOVED:
+            if check_expire:
+                flow_removed_verify(parent, request, pkt_count=0, byte_count=0)
+        elif exp_msg is ofp.OFPT_ERROR:
+            error_verify(parent, exp_msg_type, exp_msg_code)
+        else:
+            parent.assertTrue(0, "Rcv: Unexpected Message: " + str(exp_msg))
+
+        (_, rcv_pkt, _) = parent.dataplane.poll(timeout=1)
+        parent.assertFalse(rcv_pkt is not None, "Packet on dataplane")
+
+def flow_match_test_vlan(parent, port_map, wildcards=0,
+                         dl_vlan=ofp.OFPVID_NONE, dl_vlan_pcp=0, dl_vlan_type=ETHERTYPE_VLAN,
+                         dl_vlan_int=-1, dl_vlan_pcp_int=0,
+                         vid_match=ofp.OFPVID_NONE, pcp_match=0,
+                         exp_vid=-1, exp_pcp=0,
+                         exp_vlan_type=ETHERTYPE_VLAN,
+                         match_exp=True,
+                         add_tag_exp=False,
+                         exp_msg=ofp.OFPT_FLOW_REMOVED,
+                         exp_msg_type=0, exp_msg_code=0,
+                         pkt=None, exp_pkt=None,
+                         action_list=None,
+                         check_expire=False,
+                         max_test=0):
+    """
+    Run flow_match_test_port_pair on all port pairs
+
+    @param max_test If > 0 no more than this number of tests are executed.
+    @param parent Must implement controller, dataplane, assertTrue, assertEqual
+    and logger
+    @param wildcards For flow match entry
+    @param dl_vlan If not -1, and pkt is not None, create a pkt w/ VLAN tag
+    @param dl_vlan_pcp VLAN PCP associated with dl_vlan
+    @param dl_vlan_type VLAN ether type associated with dl_vlan
+    @param dl_vlan_int If not -1, create pkt w/ Inner Vlan tag
+    @param dl_vlan_pcp_int VLAN PCP associated with dl_vlan_2nd
+    @param vid_match Matching value for VLAN VID field
+    @param pcp_match Matching value for VLAN PCP field
+    @param exp_vid Expected VLAN VID value. If -1, no VLAN expected
+    @param exp_vlan_type Expected VLAN ether type
+    @param exp_pcp Expected VLAN PCP value
+    @param match_exp Set whether packet is expected to receive
+    @param add_tag_exp If True, expected_packet has an additional vlan tag,
+    If not, expected_packet's vlan tag is replaced as specified
+    @param exp_msg Expected message
+    @param exp_msg_type Expected message type associated with the message
+    @param exp_msg_code Expected message code associated with the msg_type
+    @param pkt If not None, use this packet for ingress
+    @param exp_pkt If not None, use this as the expected output pkt
+    @param action_list Additional actions to add to flow mod
+    @param check_expire Check for flow expiration message
+    """
+    of_ports = port_map.keys()
+    of_ports.sort()
+    parent.assertTrue(len(of_ports) > 1, "Not enough ports for test")
+    test_count = 0
+
+    for ing_idx in range(len(of_ports)):
+        ingress_port = of_ports[ing_idx]
+        for egr_idx in range(len(of_ports)):
+            if egr_idx == ing_idx:
+                continue
+            egress_port = of_ports[egr_idx]
+            flow_match_test_port_pair_vlan(parent, ingress_port, egress_port,
+                                           wildcards=wildcards,
+                                           dl_vlan=dl_vlan,
+                                           dl_vlan_pcp=dl_vlan_pcp,
+                                           dl_vlan_type=dl_vlan_type,
+                                           dl_vlan_int=dl_vlan_int,
+                                           dl_vlan_pcp_int=dl_vlan_pcp_int,
+                                           vid_match=vid_match,
+                                           pcp_match=pcp_match,
+                                           exp_vid=exp_vid,
+                                           exp_pcp=exp_pcp,
+                                           exp_vlan_type=exp_vlan_type,
+                                           exp_msg=exp_msg,
+                                           exp_msg_type=exp_msg_type,
+                                           exp_msg_code=exp_msg_code,
+                                           match_exp=match_exp,
+                                           add_tag_exp=add_tag_exp,
+                                           pkt=pkt, exp_pkt=exp_pkt,
+                                           action_list=action_list,
+                                           check_expire=check_expire)
+            test_count += 1
+            if (max_test > 0) and (test_count >= max_test):
+                parent.logger.info("Ran " + str(test_count) + " tests; exiting")
+                return
+
+def test_param_get(config, key, default=None):
+    """
+    Return value passed via test-params if present
+
+    @param config The configuration structure for OFTest
+    @param key The lookup key
+    @param default Default value to use if not found
+
+    If the pair 'key=val' appeared in the string passed to --test-params
+    on the command line, return val (as interpreted by exec).  Otherwise
+    return default value.
+    """
+    try:
+        exec config["test_params"]
+    except:
+        return default
+
+    s = "val = " + str(key)
+    try:
+        val = None
+        exec s
+        return val
+    except:
+        return default
+
+def action_generate(parent, field_to_mod, mod_field_vals):
+    """
+    Create an action to modify the field indicated in field_to_mod
+
+    @param parent Must implement, assertTrue
+    @param field_to_mod The field to modify as a string name
+    @param mod_field_vals Hash of values to use for modified values
+    """
+
+    act = None
+
+    if field_to_mod in ['pktlen']:
+        return None
+
+    if field_to_mod == 'dl_dst':
+        act = action.action_set_dl_dst()
+        act.dl_addr = parse.parse_mac(mod_field_vals['dl_dst'])
+    elif field_to_mod == 'dl_src':
+        act = action.action_set_dl_src()
+        act.dl_addr = parse.parse_mac(mod_field_vals['dl_src'])
+    elif field_to_mod == 'vlan_tags':
+        if len(mod_field_vals['vlan_tags']):
+            act = action.action_pop_vlan()
+        else:
+            pass
+#    elif field_to_mod == 'dl_vlan_enable':
+#        if not mod_field_vals['dl_vlan_enable']: # Strip VLAN tag
+#            act = action.action_pop_vlan()
+#        # Add VLAN tag is handled by dl_vlan field
+#        # Will return None in this case
+#    elif field_to_mod == 'dl_vlan':
+#        act = action.action_set_vlan_vid()
+#        act.vlan_vid = mod_field_vals['dl_vlan']
+#    elif field_to_mod == 'dl_vlan_pcp':
+#        act = action.action_set_vlan_pcp()
+#        act.vlan_pcp = mod_field_vals['dl_vlan_pcp']
+    elif field_to_mod == 'ip_src':
+        act = action.action_set_nw_src()
+        act.nw_addr = parse.parse_ip(mod_field_vals['ip_src'])
+    elif field_to_mod == 'ip_dst':
+        act = action.action_set_nw_dst()
+        act.nw_addr = parse.parse_ip(mod_field_vals['ip_dst'])
+    elif field_to_mod == 'ip_tos':
+        act = action.action_set_nw_tos()
+        act.nw_tos = mod_field_vals['ip_tos']
+    elif field_to_mod == 'tcp_sport':
+        act = action.action_set_tp_src()
+        act.tp_port = mod_field_vals['tcp_sport']
+    elif field_to_mod == 'tcp_dport':
+        act = action.action_set_tp_dst()
+        act.tp_port = mod_field_vals['tcp_dport']
+    else:
+        parent.assertTrue(0, "Unknown field to modify: " + str(field_to_mod))
+
+    return act
+
+def pkt_action_setup(parent, start_field_vals={}, mod_field_vals={}, 
+                     mod_fields={}, check_test_params=False):
+    """
+    Set up the ingress and expected packet and action list for a test
+
+    @param parent Must implement, assertTrue, config hash and logger
+    @param start_field_values Field values to use for ingress packet (optional)
+    @param mod_field_values Field values to use for modified packet (optional)
+    @param mod_fields The list of fields to be modified by the switch in the test.
+    @params check_test_params If True, will check the parameters vid, add_vlan
+    and strip_vlan from the command line.
+
+    Returns a triple:  pkt-to-send, expected-pkt, action-list
+    """
+
+    new_actions = []
+
+
+    base_pkt_params = {}
+    base_pkt_params['dl_dst'] = '00:DE:F0:12:34:56'
+    base_pkt_params['dl_src'] = '00:23:45:67:89:AB'
+#    base_pkt_params['dl_vlan_enable'] = False
+#    base_pkt_params['dl_vlan'] = 2
+#    base_pkt_params['dl_vlan_pcp'] = 0
+    base_pkt_params['ip_src'] = '192.168.0.1'
+    base_pkt_params['ip_dst'] = '192.168.0.2'
+    base_pkt_params['ip_tos'] = 0
+    base_pkt_params['tcp_sport'] = 1234
+    base_pkt_params['tcp_dport'] = 80
+    for keyname in start_field_vals.keys():
+        base_pkt_params[keyname] = start_field_vals[keyname]
+
+    mod_pkt_params = {}
+    mod_pkt_params['dl_dst'] = '00:21:0F:ED:CB:A9'
+    mod_pkt_params['dl_src'] = '00:ED:CB:A9:87:65'
+#    mod_pkt_params['dl_vlan_enable'] = False
+#    mod_pkt_params['dl_vlan'] = 3
+#    mod_pkt_params['dl_vlan_pcp'] = 7
+    mod_pkt_params['ip_src'] = '10.20.30.40'
+    mod_pkt_params['ip_dst'] = '50.60.70.80'
+    mod_pkt_params['ip_tos'] = 0xf0
+    mod_pkt_params['tcp_sport'] = 4321
+    mod_pkt_params['tcp_dport'] = 8765
+    for keyname in mod_field_vals.keys():
+        mod_pkt_params[keyname] = mod_field_vals[keyname]
+
+    # Check for test param modifications
+    strip = False
+    if check_test_params:
+        add_vlan = test_param_get(parent.config, 'add_vlan')
+        strip_vlan = test_param_get(parent.config, 'strip_vlan')
+        vid = test_param_get(parent.config, 'vid')
+
+        if add_vlan and strip_vlan:
+            parent.assertTrue(0, "Add and strip VLAN both specified")
+
+        if vid:
+            base_pkt_params['dl_vlan_enable'] = True
+            base_pkt_params['dl_vlan'] = vid
+            if 'dl_vlan' in mod_fields:
+                mod_pkt_params['dl_vlan'] = vid + 1
+
+        if add_vlan:
+            base_pkt_params['dl_vlan_enable'] = False
+            mod_pkt_params['dl_vlan_enable'] = True
+            mod_pkt_params['pktlen'] = base_pkt_params['pktlen'] + 4
+            mod_fields.append('pktlen')
+            mod_fields.append('dl_vlan_enable')
+            if 'dl_vlan' not in mod_fields:
+                mod_fields.append('dl_vlan')
+        elif strip_vlan:
+            base_pkt_params['dl_vlan_enable'] = True
+            mod_pkt_params['dl_vlan_enable'] = False
+            mod_pkt_params['pktlen'] = base_pkt_params['pktlen'] - 4
+            mod_fields.append('dl_vlan_enable')
+            mod_fields.append('pktlen')
+
+    # Build the ingress packet
+    ingress_pkt = simple_tcp_packet(**base_pkt_params)
+
+    # Build the expected packet, modifying the indicated fields
+    for item in mod_fields:
+        base_pkt_params[item] = mod_pkt_params[item]
+        act = action_generate(parent, item, mod_pkt_params)
+        if act:
+            new_actions.append(act)
+
+    expected_pkt = simple_tcp_packet(**base_pkt_params)
+
+    return (ingress_pkt, expected_pkt, new_actions)
+        
+def wildcard_all_set(match):
+    match.wildcards = ofp.OFPFW_ALL
+    match.nw_dst_mask = 0xffffffff
+    match.nw_src_mask = 0xffffffff
+    match.dl_dst_mask = [0xff, 0xff, 0xff, 0xff, 0xff, 0xff]
+    match.dl_src_mask = [0xff, 0xff, 0xff, 0xff, 0xff, 0xff]
+    match.metadata_mask = 0xffffffffffffffff
+
+def skip_message_emit(parent, s):
+    """
+    Print out a 'skipped' message to stderr
+
+    @param s The string to print out to the log file
+    @param parent Must implement config and logger objects
+    """
+    global skipped_test_count
+
+    skipped_test_count += 1
+    parent.logger.info("Skipping: " + s)
+    if parent.config["dbg_level"] < logging.WARNING:
+        sys.stderr.write("(skipped) ")
+    else:
+        sys.stderr.write("(S)")
+
+def do_echo_request_reply_test(test,controller):
+        request = message.echo_request()
+        response, _ = controller.transact(request)
+        test.assertEqual(response.header.type, ofp.OFPT_ECHO_REPLY,
+                         'response is not echo_reply')
+        test.assertEqual(request.header.xid, response.header.xid,
+                         'response xid != request xid')
+        test.assertEqual(len(response.data), 0, 'response data non-empty')
+
+def match_all_generate():
+    match = ofp.ofp_match()
+    return match
+
+def simple_tcp_packet_w_mpls(
+                      dl_dst='00:01:02:03:04:05',
+                      dl_src='00:06:07:08:09:0a',
+                      mpls_type=0x8847,
+                      mpls_label=-1,
+                      mpls_tc=0,
+                      mpls_ttl=64,
+                      mpls_label_int=-1,
+                      mpls_tc_int=0,
+                      mpls_ttl_int=32,
+                      mpls_label_ext=-1,
+                      mpls_tc_ext=0,
+                      mpls_ttl_ext=128,
+                      ip_src='192.168.0.1',
+                      ip_dst='192.168.0.2',
+                      ip_tos=0,
+                      ip_ttl=192,
+                      tcp_sport=1234,
+                      tcp_dport=80
+                      ):
+    """
+    Return a simple dataplane TCP packet w/wo MPLS tags
+
+    Supports a few parameters:
+    @param len Length of packet in bytes w/o CRC
+    @param dl_dst Destinatino MAC
+    @param dl_src Source MAC
+    @param mpls_type MPLS type as ether type
+    @param mpls_label MPLS LABEL if not -1
+    @param mpls_tc MPLS TC
+    @param mpls_ttl MPLS TTL
+    @param mpls_label_int Inner MPLS LABEL if not -1. The shim will be added
+    inside of mpls_label shim.
+    @param mpls_tc_int Inner MPLS TC
+    @param mpls_ttl_int Inner MPLS TTL
+    @param mpls_label_ext External MPLS LABEL if not -1. The shim will be
+    added outside of mpls_label shim
+    @param mpls_tc_ext External MPLS TC
+    @param mpls_ttl_ext External MPLS TTL
+    @param ip_src IP source
+    @param ip_dst IP destination
+    @param ip_tos IP ToS
+    @param tcp_dport TCP destination port
+    @param ip_sport TCP source port
+
+    Generates a simple MPLS/IP/TCP request.  Users
+    shouldn't assume anything about this packet other than that
+    it is a valid ethernet/IP/TCP frame.
+    """
+    
+    mpls_tags = []
+    
+    if mpls_label_ext >= 0:
+        mpls_tags.append({'type': mpls_type, 'label': mpls_label_ext, 'tc': mpls_tc_ext, 'ttl': mpls_ttl_ext})
+        
+    if mpls_label >= 0:
+        mpls_tags.append({'type': mpls_type, 'label': mpls_label, 'tc': mpls_tc, 'ttl': mpls_ttl})
+        
+    if mpls_label_int >= 0:
+        mpls_tags.append({'type': mpls_type, 'label': mpls_label_int, 'tc': mpls_tc_int, 'ttl': mpls_ttl_int})
+    
+    pkt = simple_tcp_packet(dl_dst=dl_dst,
+                            dl_src=dl_src,
+                            mpls_tags=mpls_tags,
+                            ip_src=ip_src,
+                            ip_dst=ip_dst,
+                            ip_tos=ip_tos,  
+                            ip_ttl=ip_ttl,
+                            tcp_sport=tcp_sport,
+                            tcp_dport=tcp_dport)
+    return pkt
+    
+def flow_match_test_port_pair_mpls(parent, ing_port, egr_port, wildcards=0,
+                                   mpls_type=0x8847,
+                                   mpls_label=-1, mpls_tc=0,mpls_ttl=64,
+                                   mpls_label_int=-1, mpls_tc_int=0,
+                                   mpls_ttl_int=32,
+                                   ip_ttl=192,
+                                   exp_mpls_type=0x8847,
+                                   exp_mpls_label=-1, exp_mpls_tc=0,
+                                   exp_mpls_ttl=64,
+                                   exp_mpls_ttl_int=32,
+                                   exp_ip_ttl=192,
+                                   label_match=0, tc_match=0,
+                                   dl_type_match=ETHERTYPE_MPLS,
+                                   match_exp=True,
+                                   add_tag_exp=False,
+                                   exp_msg=ofp.OFPT_FLOW_REMOVED,
+                                   exp_msg_type=0, exp_msg_code=0,
+                                   pkt=None,
+                                   exp_pkt=None, action_list=None,
+                                   check_expire=False):
+    """
+    Flow match test on single packet w/ MPLS tags
+
+    Run test with packet through switch from ing_port to egr_port
+    See flow_match_test for parameter descriptions
+    """
+    parent.logger.info("Pkt match test: " + str(ing_port) + " to " + str(egr_port))
+    parent.logger.debug("  WC: " + hex(wildcards) + " MPLS: " +
+                    str(mpls_label) + " expire: " + str(check_expire))
+
+    if pkt is None:
+
+        pkt = simple_tcp_packet_w_mpls(mpls_type=mpls_type,
+                                       mpls_label=mpls_label,
+                                       mpls_tc=mpls_tc,
+                                       mpls_ttl=mpls_ttl,
+                                       mpls_label_int=mpls_label_int,
+                                       mpls_tc_int=mpls_tc_int,
+                                       mpls_ttl_int=mpls_ttl_int,
+                                       ip_ttl=ip_ttl)
+
+    if exp_pkt is None:
+        if add_tag_exp:
+            exp_pkt = simple_tcp_packet_w_mpls(
+                                           mpls_type=exp_mpls_type,
+                                           mpls_label_ext=exp_mpls_label,
+                                           mpls_tc_ext=exp_mpls_tc,
+                                           mpls_ttl_ext=exp_mpls_ttl,
+                                           mpls_label=mpls_label,
+                                           mpls_tc=mpls_tc,
+                                           mpls_ttl=mpls_ttl,
+                                           mpls_label_int=mpls_label_int,
+                                           mpls_tc_int=mpls_tc_int,
+                                           mpls_ttl_int=exp_mpls_ttl_int,
+                                           ip_ttl=exp_ip_ttl)
+        else:
+            if (exp_mpls_label < 0) and (mpls_label_int >= 0):
+                exp_pkt = simple_tcp_packet_w_mpls(
+                                           mpls_type=mpls_type,
+                                           mpls_label=mpls_label_int,
+                                           mpls_tc=mpls_tc_int,
+                                           mpls_ttl=exp_mpls_ttl_int,
+                                           ip_ttl=exp_ip_ttl)
+            else:
+                exp_pkt = simple_tcp_packet_w_mpls(
+                                           mpls_type=exp_mpls_type,
+                                           mpls_label=exp_mpls_label,
+                                           mpls_tc=exp_mpls_tc,
+                                           mpls_ttl=exp_mpls_ttl,
+                                           mpls_label_int=mpls_label_int,
+                                           mpls_tc_int=mpls_tc_int,
+                                           mpls_ttl_int=exp_mpls_ttl_int,
+                                           ip_ttl=exp_ip_ttl)
+    wildcards = (ofp.OFPFW_ALL & ~(ofp.OFPFW_DL_TYPE | ofp.OFPFW_MPLS_LABEL | ofp.OFPFW_MPLS_TC)) | wildcards
+
+    match = parse.packet_to_flow_match(pkt)
+    parent.assertTrue(match is not None, "Flow match from pkt failed")
+
+    match.mpls_label = label_match
+    match.mpls_tc = tc_match
+    match.wildcards = wildcards
+
+    match.dl_type = dl_type_match
+    match.nw_tos = 0
+    match.nw_proto = 0
+    match.nw_src = 0
+    match.nw_src_mask = 0xFFFFFFFF
+    match.nw_dst = 0
+    match.nw_dst_mask = 0xFFFFFFFF
+    match.tp_src = 0
+    match.tp_dst = 0
+
+    request = flow_msg_create(parent, pkt, ing_port=ing_port,
+                              wildcards=wildcards,
+                              match=match,
+                              egr_port=egr_port,
+                              action_list=action_list)
+
+    flow_msg_install(parent, request)
+
+    parent.logger.debug("Send packet: " + str(ing_port) + " to " + str(egr_port))
+    #parent.logger.debug(str(pkt).encode("hex"))
+    parent.dataplane.send(ing_port, str(pkt))
+
+    if match_exp:
+        receive_pkt_verify(parent, egr_port, exp_pkt)
+        if check_expire:
+            #@todo Not all HW supports both pkt and byte counters
+            flow_removed_verify(parent, request, pkt_count=1, byte_count=len(pkt))
+    else:
+        if exp_msg == ofp.OFPT_FLOW_REMOVED:
+            if check_expire:
+                flow_removed_verify(parent, request, pkt_count=0, byte_count=0)
+        elif exp_msg == ofp.OFPT_ERROR:
+            error_verify(parent, exp_msg_type, exp_msg_code)
+        else:
+            parent.assertTrue(0, "Rcv: Unexpected Message: " + str(exp_msg))
+        (_, rcv_pkt, _) = parent.dataplane.poll(timeout=1)
+        parent.assertFalse(rcv_pkt is not None, "Packet on dataplane")
+
+def flow_match_test_mpls(parent, port_map, wildcards=0,
+                         mpls_type=0x8847,
+                         mpls_label=-1, mpls_tc=0, mpls_ttl=64,
+                         mpls_label_int=-1, mpls_tc_int=0, mpls_ttl_int=32,
+                         ip_ttl = 192,
+                         label_match=0, tc_match=0,
+                         dl_type_match=ETHERTYPE_MPLS,
+                         exp_mpls_type=0x8847,
+                         exp_mpls_label=-1, exp_mpls_tc=0, exp_mpls_ttl=64,
+                         exp_mpls_ttl_int=32,
+                         exp_ip_ttl=192,
+                         match_exp=True,
+                         add_tag_exp=False,
+                         exp_msg=ofp.OFPT_FLOW_REMOVED,
+                         exp_msg_type=0, exp_msg_code=0,
+                         pkt=None,
+                         exp_pkt=None, action_list=None, check_expire=False,
+                         max_test=0):
+    """
+    Run flow_match_test_port_pair on all port pairs
+
+    @param max_test If > 0 no more than this number of tests are executed.
+    @param parent Must implement controller, dataplane, assertTrue, assertEqual
+    and logger
+    @param wildcards For flow match entry
+    @param mpls_type MPLS type
+    @param mpls_label If not -1 create a pkt w/ MPLS tag
+    @param mpls_tc MPLS TC associated with MPLS label
+    @param mpls_ttl MPLS TTL associated with MPLS label
+    @param mpls_label_int If not -1 create a pkt w/ Inner MPLS tag
+    @param mpls_tc_int MPLS TC associated with Inner MPLS label
+    @param mpls_ttl_int MPLS TTL associated with Inner MPLS label
+    @param ip_ttl IP TTL
+    @param label_match Matching value for MPLS LABEL field
+    @param tc_match Matching value for MPLS TC field
+    @param exp_mpls_label Expected MPLS LABEL value. If -1, no MPLS expected
+    @param exp_mpls_tc Expected MPLS TC value
+    @param exp_mpls_ttl Expected MPLS TTL value
+    @param exp_mpls_ttl_int Expected Inner MPLS TTL value
+    @param ip_ttl Expected IP TTL
+    @param match_exp Set whether packet is expected to receive
+    @param add_tag_exp If True, expected_packet has an additional MPLS shim,
+    If not expected_packet's MPLS shim is replaced as specified
+    @param exp_msg Expected message
+    @param exp_msg_type Expected message type associated with the message
+    @param exp_msg_code Expected message code associated with the msg_type
+    @param pkt If not None, use this packet for ingress
+    @param exp_pkt If not None, use this as the expected output pkt; els use pkt
+    @param action_list Additional actions to add to flow mod
+    @param check_expire Check for flow expiration message
+    """
+    of_ports = port_map.keys()
+    of_ports.sort()
+    parent.assertTrue(len(of_ports) > 1, "Not enough ports for test")
+    test_count = 0
+
+    for ing_idx in range(len(of_ports)):
+        ingress_port = of_ports[ing_idx]
+        for egr_idx in range(len(of_ports)):
+            if egr_idx == ing_idx:
+                continue
+            egress_port = of_ports[egr_idx]
+            flow_match_test_port_pair_mpls(parent, ingress_port, egress_port,
+                                      wildcards=wildcards,
+                                      mpls_type=mpls_type,
+                                      mpls_label=mpls_label,
+                                      mpls_tc=mpls_tc,
+                                      mpls_ttl=mpls_ttl,
+                                      mpls_label_int=mpls_label_int,
+                                      mpls_tc_int=mpls_tc_int,
+                                      mpls_ttl_int=mpls_ttl_int,
+                                      ip_ttl=ip_ttl,
+                                      label_match=label_match,
+                                      tc_match=tc_match,
+                                      dl_type_match=dl_type_match,
+                                      exp_mpls_type=exp_mpls_type,
+                                      exp_mpls_label=exp_mpls_label,
+                                      exp_mpls_tc=exp_mpls_tc,
+                                      exp_mpls_ttl=exp_mpls_ttl,
+                                      exp_mpls_ttl_int=exp_mpls_ttl_int,
+                                      exp_ip_ttl=exp_ip_ttl,
+                                      match_exp=match_exp,
+                                      exp_msg=exp_msg,
+                                      exp_msg_type=exp_msg_type,
+                                      exp_msg_code=exp_msg_code,
+                                      add_tag_exp=add_tag_exp,
+                                      pkt=pkt, exp_pkt=exp_pkt,
+                                      action_list=action_list,
+                                      check_expire=check_expire)
+            test_count += 1
+            if (max_test > 0) and (test_count >= max_test):
+                parent.logger.info("Ran " + str(test_count) + " tests; exiting")
+                return
+
+def flow_stats_get(parent, match_fields = None):
+    """ Get the flow_stats from the switch
+    Test the response to make sure it's really a flow_stats object
+    """
+    request = message.flow_stats_request()
+    request.out_port = ofp.OFPP_ANY
+    request.out_group = ofp.OFPG_ANY
+    request.table_id = 0xff
+    if match_fields != None:
+        request.match_fields = match_fields
+    response, _ = parent.controller.transact(request, timeout=2)
+    parent.assertTrue(response is not None, "Did not get response")
+    parent.assertTrue(isinstance(response,message.flow_stats_reply),
+                      "Expected a flow_stats_reply, but didn't get it")
+    return response