ofdpa/flows.py

"""
The following tests are being done here
1) PacketInSrcMacMiss
2) VlanSupport
3) L2FloodQinQ
4) L2FloodTagged
5) L2Flood Tagged Unknown Src
6) L2 Unicast Tagged
7) MTU 1500
8) MTU 4100
9) MTU 4500
10) L3UnicastTagged
11) L3VPNMPLS
12) MPLS Termination
"""

from oftest import config
import inspect
import logging
import oftest.base_tests as base_tests
import ofp
from oftest.testutils import *
from accton_util import *

class PacketInUDP(base_tests.SimpleDataPlane):
    """
    Test packet in function for a table-miss flow
    Send a packet to each dataplane port and verify that a packet
    in message is received from the controller for each
    
    NOTE: Verify This case the oft option shall not use --switch-ip
    """

    def runTest(self):
        delete_all_flows(self.controller)
        delete_all_groups(self.controller)
        
        parsed_vlan_pkt = simple_udp_packet(pktlen=104, 
                      vlan_vid=0x1001, dl_vlan_enable=True)
        vlan_pkt = str(parsed_vlan_pkt)
        # create match
        match = ofp.match()
        match.oxm_list.append(ofp.oxm.eth_type(0x0800))
        match.oxm_list.append(ofp.oxm.ip_proto(17))
        request = ofp.message.flow_add(
            table_id=60,
            cookie=42,
            match=match,
            instructions=[
                ofp.instruction.apply_actions(
                    actions=[
                        ofp.action.output(
                            port=ofp.OFPP_CONTROLLER,
                            max_len=ofp.OFPCML_NO_BUFFER)]),            ],
            buffer_id=ofp.OFP_NO_BUFFER,
            priority=1)

        logging.info("Inserting packet in flow to controller")
        self.controller.message_send(request)
        do_barrier(self.controller)

        for of_port in config["port_map"].keys():
            logging.info("PacketInMiss test, port %d", of_port)
            self.dataplane.send(of_port, vlan_pkt)

            verify_packet_in(self, vlan_pkt, of_port, ofp.OFPR_ACTION)

            verify_no_other_packets(self)


@disabled
class ArpNL2(base_tests.SimpleDataPlane):
     def runTest(self):
        delete_all_flows(self.controller)
        delete_all_groups(self.controller)

        ports = sorted(config["port_map"].keys())
        match = ofp.match()
        match.oxm_list.append(ofp.oxm.eth_type(0x0806))
        request = ofp.message.flow_add(
            table_id=60,
            cookie=42,
            match=match,
            instructions=[
                ofp.instruction.apply_actions(
                    actions=[
                        ofp.action.output(
                            port=ofp.OFPP_CONTROLLER,
                            max_len=ofp.OFPCML_NO_BUFFER)]),
            ],
            buffer_id=ofp.OFP_NO_BUFFER,
            priority=40000)
        self.controller.message_send(request)
        for port in ports:
            add_one_l2_interface_group(self.controller, port, 1, False, False)
            add_one_vlan_table_flow(self.controller, port, 1, flag=VLAN_TABLE_FLAG_ONLY_BOTH)
            group_id = encode_l2_interface_group_id(1, port)
            add_bridge_flow(self.controller, [0x00, 0x12, 0x34, 0x56, 0x78, port], 1, group_id, True)
        do_barrier(self.controller)
        parsed_arp_pkt = simple_arp_packet()
        arp_pkt = str(parsed_arp_pkt)

        for out_port in ports:
            self.dataplane.send(out_port, arp_pkt)
            verify_packet_in(self, arp_pkt, out_port, ofp.OFPR_ACTION)
            # change dest based on port number
            mac_dst= '00:12:34:56:78:%02X' % out_port
            for in_port in ports:
                if in_port == out_port:
                    continue
                # change source based on port number to avoid packet-ins from learning
                mac_src= '00:12:34:56:78:%02X' % in_port
                parsed_pkt = simple_tcp_packet(eth_dst=mac_dst, eth_src=mac_src)
                pkt = str(parsed_pkt)
                self.dataplane.send(in_port, pkt)

                for ofport in ports:
                    if ofport in [out_port]:
                        verify_packet(self, pkt, ofport)
                    else:
                        verify_no_packet(self, pkt, ofport)

                verify_no_other_packets(self)

class PacketInArp(base_tests.SimpleDataPlane):
    """
    Test packet in function for a table-miss flow
    Send a packet to each dataplane port and verify that a packet
    in message is received from the controller for each

    NOTE: Verify This case the oft option shall not use --switch-ip
    """

    def runTest(self):
        delete_all_flows(self.controller)
        delete_all_groups(self.controller)

        parsed_arp_pkt = simple_arp_packet()
        arp_pkt = str(parsed_arp_pkt)
        ports = sorted(config["port_map"].keys())
        #for port in ports:
        #    add_one_l2_interface_group(self.controller, port, 1, True, False)
        #    add_one_vlan_table_flow(self.controller, port, 1, flag=VLAN_TABLE_FLAG_ONLY_TAG)

        # create match
        match = ofp.match()
        match.oxm_list.append(ofp.oxm.eth_type(0x0806))
        request = ofp.message.flow_add(
            table_id=60,
            cookie=42,
            match=match,
            instructions=[
                ofp.instruction.apply_actions(
                    actions=[
                        ofp.action.output(
                            port=ofp.OFPP_CONTROLLER,
                            max_len=ofp.OFPCML_NO_BUFFER)]),
            ],
            buffer_id=ofp.OFP_NO_BUFFER,
            priority=1)

        logging.info("Inserting packet in flow to controller")
        self.controller.message_send(request)
        do_barrier(self.controller)

        for of_port in config["port_map"].keys():
            logging.info("PacketInMiss test, port %d", of_port)
            self.dataplane.send(of_port, arp_pkt)

            verify_packet_in(self, arp_pkt, of_port, ofp.OFPR_ACTION)

            verify_no_other_packets(self)

class L2FloodQinQ(base_tests.SimpleDataPlane):
    """
    Test L2 flood of double tagged vlan packets (802.1Q)
    Sends a double tagged packet and verifies flooding behavior according to outer vlan
    """
    def runTest(self):
        ports = sorted(config["port_map"].keys())
        #Hashes Test Name and uses it as id for installing unique groups
        vlan_id=abs(hash(inspect.stack()[0][3])) % (256)
        delete_all_flows(self.controller)
        delete_all_groups(self.controller)

        # Installing flows to avoid packet-in
        for port in ports:
            add_one_l2_interface_group(self.controller, port, vlan_id, True, False)
            add_one_vlan_table_flow(self.controller, port, vlan_id, flag=VLAN_TABLE_FLAG_ONLY_TAG)

        msg=add_l2_flood_group(self.controller, ports, vlan_id, vlan_id)
        add_bridge_flow(self.controller, None, vlan_id, msg.group_id, True)
        do_barrier(self.controller)

        #verify flood
        for ofport in ports:
            # change dest based on port number
            mac_src= '00:12:34:56:78:%02X' % ofport
            parsed_pkt = simple_tcp_packet_two_vlan(pktlen=108, out_dl_vlan_enable=True, out_vlan_vid=vlan_id,
                                                in_dl_vlan_enable=True, in_vlan_vid=10, eth_dst='00:12:34:56:78:9a', eth_src=mac_src)
            pkt = str(parsed_pkt)
            self.dataplane.send(ofport, pkt)
            #self won't rx packet
            verify_no_packet(self, pkt, ofport)
            #others will rx packet
            tmp_ports=list(ports)
            tmp_ports.remove(ofport)
            verify_packets(self, pkt, tmp_ports)

        verify_no_other_packets(self)

@disabled
class L2FloodTagged(base_tests.SimpleDataPlane):
    """
    Test L2 flood to a vlan
    Send a packet with unknown dst_mac and check if the packet is flooded to all ports except inport
    """
    def runTest(self):
        #Hashes Test Name and uses it as id for installing unique groups
        vlan_id=abs(hash(inspect.stack()[0][3])) % (256)
        print vlan_id

        ports = sorted(config["port_map"].keys())

        delete_all_flows(self.controller)
        delete_all_groups(self.controller)

        # Installing flows to avoid packet-in
        for port in ports:
            add_one_l2_interface_group(self.controller, port, vlan_id, True, False)
            add_one_vlan_table_flow(self.controller, port, vlan_id, flag=VLAN_TABLE_FLAG_ONLY_TAG)
        msg=add_l2_flood_group(self.controller, ports, vlan_id, vlan_id)
        add_bridge_flow(self.controller, None, vlan_id, msg.group_id, True)
        do_barrier(self.controller)

        #verify flood
        for ofport in ports:
            # change dest based on port number
            pkt = str( simple_tcp_packet(dl_vlan_enable=True, vlan_vid=vlan_id, eth_dst='00:12:34:56:78:9a') )
            self.dataplane.send(ofport, pkt)
            #self won't rx packet
            verify_no_packet(self, pkt, ofport)
            #others will rx packet
            tmp_ports=list(ports)
            tmp_ports.remove(ofport)
            verify_packets(self, pkt, tmp_ports)
        verify_no_other_packets(self)

class L2UnicastTagged(base_tests.SimpleDataPlane):
    """
    Test output function for an exact-match flow

    For each port A, adds a flow directing matching packets to that port.
    Then, for all other ports B != A, verifies that sending a matching packet
    to B results in an output to A.
    """
    def runTest(self):
        ports = sorted(config["port_map"].keys())
        #Hashes Test Name and uses it as id for installing unique groups
        vlan_id=abs(hash(inspect.stack()[0][3])) % (256)
        delete_all_flows(self.controller)
        delete_all_groups(self.controller)

        for port in ports:
            add_one_l2_interface_group(self.controller, port, vlan_id, True, False)
            add_one_vlan_table_flow(self.controller, port, vlan_id, flag=VLAN_TABLE_FLAG_ONLY_TAG)
            group_id = encode_l2_interface_group_id(vlan_id, port)
            add_bridge_flow(self.controller, [0x00, 0x12, 0x34, 0x56, 0x78, port], vlan_id, group_id, True)
        do_barrier(self.controller)

        for out_port in ports:
            # change dest based on port number
            mac_dst= '00:12:34:56:78:%02X' % out_port
            for in_port in ports:
                if in_port == out_port:
                    continue
                pkt = str( simple_tcp_packet(dl_vlan_enable=True, vlan_vid=vlan_id, eth_dst=mac_dst))
                self.dataplane.send(in_port, pkt)
                for ofport in ports:
                    if ofport in [out_port]:
                        verify_packet(self, pkt, ofport)
                    else:
                        verify_no_packet(self, pkt, ofport)
                verify_no_other_packets(self)

class Mtu1500(base_tests.SimpleDataPlane):

    def runTest(self):
        ports = sorted(config["port_map"].keys())
        #Hashes Test Name and uses it as id for installing unique groups
        vlan_id=abs(hash(inspect.stack()[0][3])) % (256)
        delete_all_flows(self.controller)
        delete_all_groups(self.controller)

        for port in ports:
            add_one_l2_interface_group(self.controller, port, vlan_id, True, False)
            add_one_vlan_table_flow(self.controller, port, vlan_id, flag=VLAN_TABLE_FLAG_ONLY_TAG)
            group_id = encode_l2_interface_group_id(vlan_id, port)
            add_bridge_flow(self.controller, [0x00, 0x12, 0x34, 0x56, 0x78, port], vlan_id, group_id, True)
        do_barrier(self.controller)

        for out_port in ports:
            # change dest based on port number
            mac_dst= '00:12:34:56:78:%02X' % out_port
            for in_port in ports:
                if in_port == out_port:
                    continue
                pkt = str(simple_tcp_packet(pktlen=1500,dl_vlan_enable=True, vlan_vid=vlan_id, eth_dst=mac_dst))
                self.dataplane.send(in_port, pkt)
                for ofport in ports:
                    if ofport in [out_port]:
                        verify_packet(self, pkt, ofport)
                    else:
                        verify_no_packet(self, pkt, ofport)
                verify_no_other_packets(self)

class L3UcastTagged(base_tests.SimpleDataPlane):
    """
    Port1(vid=in_port, src=00:00:00:22:22:in_port, 192.168.outport.1) , 
    Port2(vid=outport, dst=00:00:00:22:22:outport, 192.168.outport.1)
    """
    def runTest(self):
        delete_all_flows(self.controller)
        delete_all_groups(self.controller)
        #Hashes Test Name and uses it as id for installing unique groups
        class_id=abs(hash(inspect.stack()[0][3])) % (256)
        if len(config["port_map"]) <2:
            logging.info("Port count less than 2, can't run this case")
            return

        intf_src_mac=[0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc]
        dst_mac=[0x00, 0x00, 0x00, 0x22, 0x22, 0x00]
        dip=0xc0a80001
        ports = config["port_map"].keys()
        for port in ports:
            #add l2 interface group
            vlan_id=port+class_id
            add_one_l2_interface_group(self.controller, port, vlan_id=vlan_id, is_tagged=True, send_barrier=False)
            dst_mac[5]=vlan_id
            l3_msg=add_l3_unicast_group(self.controller, port, vlanid=vlan_id, id=vlan_id, src_mac=intf_src_mac, dst_mac=dst_mac)
            #add vlan flow table
            add_one_vlan_table_flow(self.controller, port, vlan_id,  flag=VLAN_TABLE_FLAG_ONLY_TAG)
            #add termination flow
            add_termination_flow(self.controller, port, 0x0800, intf_src_mac, vlan_id)
            #add unicast routing flow
            dst_ip = dip + (vlan_id<<8)
            add_unicast_routing_flow(self.controller, 0x0800, dst_ip, 0xffffffff, l3_msg.group_id)
            #add entries in the Bridging table to avoid packet-in from mac learning
            group_id = encode_l2_interface_group_id(vlan_id, port)
            add_bridge_flow(self.controller, dst_mac, vlan_id, group_id, True)

        do_barrier(self.controller)

        switch_mac = ':'.join(['%02X' % x for x in intf_src_mac])
        for in_port in ports:
            mac_src='00:00:00:22:22:%02X' % (class_id+in_port)
            ip_src='192.168.%02d.1' % (class_id+in_port)
            for out_port in ports:
                if in_port == out_port:
                     continue
                ip_dst='192.168.%02d.1' % (class_id+out_port)
                parsed_pkt = simple_tcp_packet(pktlen=100, dl_vlan_enable=True, vlan_vid=(class_id+in_port),
                    eth_dst=switch_mac, eth_src=mac_src, ip_ttl=64, ip_src=ip_src,
                    ip_dst=ip_dst)
                pkt=str(parsed_pkt)
                self.dataplane.send(in_port, pkt)
                #build expected packet
                mac_dst='00:00:00:22:22:%02X' % (class_id+out_port)
                exp_pkt = simple_tcp_packet(pktlen=100, dl_vlan_enable=True, vlan_vid=(class_id+out_port),
                                       eth_dst=mac_dst, eth_src=switch_mac, ip_ttl=63,
                                       ip_src=ip_src, ip_dst=ip_dst)
                pkt=str(exp_pkt)
                verify_packet(self, pkt, out_port)
                verify_no_other_packets(self)

class L3VPNMPLS(base_tests.SimpleDataPlane):
    """
	    Insert IP packet
	    Receive MPLS packet
    """
    def runTest(self):
        delete_all_flows(self.controller)
        delete_all_groups(self.controller)

        if len(config["port_map"]) <2:
            logging.info("Port count less than 2, can't run this case")
            return

        intf_src_mac=[0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc]
        dst_mac=[0x00, 0x00, 0x00, 0x22, 0x22, 0x00]
        dip=0xc0a80001
        #Hashes Test Name and uses it as id for installing unique groups
        class_id=abs(hash(inspect.stack()[0][3])) % (200)
        ports = config["port_map"].keys()
        for port in ports:
            #add l2 interface group
            id=port+class_id<<8
            vlan_id=port+class_id
            l2_gid, l2_msg = add_one_l2_interface_group(self.controller, port, vlan_id, True, True)
            dst_mac[5]=vlan_id
            #add MPLS interface group
            mpls_gid, mpls_msg = add_mpls_intf_group(self.controller, l2_gid, dst_mac, intf_src_mac, vlan_id, id)
            #add MPLS L3 VPN group
            mpls_label_gid, mpls_label_msg = add_mpls_label_group(self.controller, subtype=OFDPA_MPLS_GROUP_SUBTYPE_L3_VPN_LABEL,
                index=id, ref_gid= mpls_gid, push_mpls_header=True, set_mpls_label=port, set_bos=1, set_ttl=32)
            ecmp_msg=add_l3_ecmp_group(self.controller, id, [mpls_label_gid])
            do_barrier(self.controller)
            #add vlan flow table
            add_one_vlan_table_flow(self.controller, port, vlan_id, vrf=0, flag=VLAN_TABLE_FLAG_ONLY_TAG)
            #add termination flow
            add_termination_flow(self.controller, port, 0x0800, intf_src_mac, vlan_id)
            #add routing flow
            dst_ip = dip + (vlan_id<<8)
            #add_unicast_routing_flow(self.controller, 0x0800, dst_ip, 0, mpls_label_gid, vrf=2)
            add_unicast_routing_flow(self.controller, 0x0800, dst_ip, 0xffffff00, ecmp_msg.group_id, vrf=0)

        do_barrier(self.controller)

        switch_mac = ':'.join(['%02X' % x for x in intf_src_mac])
        for in_port in ports:
            mac_src='00:00:00:22:22:%02X' % (class_id+in_port)
            ip_src='192.168.%02d.1' % (class_id+in_port)
            for out_port in ports:
                if in_port == out_port:
                     continue
                ip_dst='192.168.%02d.1' % (class_id+out_port)
                parsed_pkt = simple_tcp_packet(pktlen=100, dl_vlan_enable=True, vlan_vid=(class_id+in_port),
                    eth_dst=switch_mac, eth_src=mac_src, ip_ttl=64, ip_src=ip_src,
                    ip_dst=ip_dst)
                pkt=str(parsed_pkt)
                self.dataplane.send(in_port, pkt)
                #build expect packet
                mac_dst='00:00:00:22:22:%02X' % (class_id+out_port)
                label = (out_port, 0, 1, 32)
                exp_pkt = mpls_packet(pktlen=104, dl_vlan_enable=True, vlan_vid=(out_port+class_id), ip_ttl=63, ip_src=ip_src,
                            ip_dst=ip_dst, eth_dst=mac_dst, eth_src=switch_mac, label=[label])
                pkt=str(exp_pkt)
                verify_packet(self, pkt, out_port)
                verify_no_other_packets(self)

class _32VPN(base_tests.SimpleDataPlane):
    """
            Insert IP packet
            Receive MPLS packet
    """
    def runTest(self):
        delete_all_flows(self.controller)
        delete_all_groups(self.controller)

        if len(config["port_map"]) <2:
            logging.info("Port count less than 2, can't run this case")
            return

        intf_src_mac=[0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc]
        dst_mac=[0x00, 0x00, 0x00, 0x22, 0x22, 0x00]
        dip=0xc0a80001
        #Hashes Test Name and uses it as id for installing unique groups
        class_id=abs(hash(inspect.stack()[0][3])) % (256)
        ports = config["port_map"].keys()
        for port in ports:
            #add l2 interface group
            id=port+class_id<<8
            vlan_id=port+class_id
            l2_gid, l2_msg = add_one_l2_interface_group(self.controller, port, vlan_id, True, True)
            dst_mac[5]=vlan_id
            #add MPLS interface group
            mpls_gid, mpls_msg = add_mpls_intf_group(self.controller, l2_gid, dst_mac, intf_src_mac, vlan_id, id)
            #add MPLS L3 VPN group
            mpls_label_gid, mpls_label_msg = add_mpls_label_group(self.controller, subtype=OFDPA_MPLS_GROUP_SUBTYPE_L3_VPN_LABEL,
                     index=id, ref_gid= mpls_gid, push_mpls_header=True, set_mpls_label=port, set_bos=1, set_ttl=32)
            #ecmp_msg=add_l3_ecmp_group(self.controller, vlan_id, [mpls_label_gid])
            do_barrier(self.controller)
            #add vlan flow table
            add_one_vlan_table_flow(self.controller, port, vlan_id, vrf=0, flag=VLAN_TABLE_FLAG_ONLY_TAG)
            #add termination flow
            add_termination_flow(self.controller, port, 0x0800, intf_src_mac, vlan_id)
            #add routing flow
            dst_ip = dip + (vlan_id<<8)
            add_unicast_routing_flow(self.controller, 0x0800, dst_ip, 0xffffffff, mpls_label_gid)

        do_barrier(self.controller)

        switch_mac = ':'.join(['%02X' % x for x in intf_src_mac])
        for in_port in ports:
            ip_src='192.168.%02d.1' % (class_id+in_port)
            for out_port in ports:
                if in_port == out_port:
                     continue
                ip_dst='192.168.%02d.1' % (class_id+out_port)
                parsed_pkt = simple_tcp_packet(pktlen=100, dl_vlan_enable=True, vlan_vid=(class_id+in_port),
                    eth_dst=switch_mac, ip_ttl=64, ip_src=ip_src,
                    ip_dst=ip_dst)
                pkt=str(parsed_pkt)
                self.dataplane.send(in_port, pkt)
                #build expect packet
                mac_dst='00:00:00:22:22:%02X' % (class_id+out_port)
                label = (out_port, 0, 1, 32)
                exp_pkt = mpls_packet(pktlen=104, dl_vlan_enable=True, vlan_vid=(class_id+out_port), ip_ttl=63, ip_src=ip_src,
                            ip_dst=ip_dst, eth_dst=mac_dst, eth_src=switch_mac, label=[label])
                pkt=str(exp_pkt)
                verify_packet(self, pkt, out_port)
                verify_no_other_packets(self)
@disabled
class MPLSBUG(base_tests.SimpleDataPlane):

    def runTest(self):
        delete_all_flows(self.controller)
        delete_all_groups(self.controller)

        if len(config["port_map"]) <2:
            logging.info("Port count less than 2, can't run this case")
            return

        intf_src_mac=[0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc]
        dst_mac=[0x00, 0x00, 0x00, 0x22, 0x22, 0x00]
        dip=0xc0a80001
        index=1
        ports = config["port_map"].keys()
        for port in ports:
            #add l2 interface group
            vlan_id=port
            l2_gid, l2_msg = add_one_l2_interface_group(self.controller, port, vlan_id, True, False)
            dst_mac[5]=vlan_id
            #add L3 Unicast  group
            l3_msg=add_l3_unicast_group(self.controller, port, vlanid=vlan_id, id=vlan_id, src_mac=intf_src_mac, dst_mac=dst_mac)
            #add vlan flow table
            add_one_vlan_table_flow(self.controller, port, vlan_id, flag=VLAN_TABLE_FLAG_ONLY_BOTH)
            #add termination flow
            add_termination_flow(self.controller, port, 0x8847, intf_src_mac, vlan_id, goto_table=24)
            #add mpls flow
            add_mpls_flow(self.controller, l3_msg.group_id, port)
            #add termination flow
            add_termination_flow(self.controller, port, 0x0800, intf_src_mac, vlan_id)
            #add unicast routing flow
            dst_ip = dip + (vlan_id<<8)
            add_unicast_routing_flow(self.controller, 0x0800, dst_ip, 0xffffffff, l3_msg.group_id)

            #add entries in the Bridging table to avoid packet-in from mac learning
            group_id = encode_l2_interface_group_id(vlan_id, port)
            add_bridge_flow(self.controller, dst_mac, vlan_id, group_id, True)

        do_barrier(self.controller)

        switch_mac = ':'.join(['%02X' % x for x in intf_src_mac])
        for in_port in ports:
            mac_src='00:00:00:22:22:%02X' % in_port
            ip_src='192.168.%02d.1' % in_port
            for out_port in ports:
                if in_port == out_port:
                     continue
                ip_dst='192.168.%02d.1' % out_port
                switch_mac = "00:00:00:cc:cc:cc"
                label = (out_port, 0, 1, 32)
                parsed_pkt = mpls_packet(pktlen=104, dl_vlan_enable=True, vlan_vid=in_port, ip_src=ip_src,
                             ip_dst=ip_dst, eth_dst=switch_mac, eth_src=mac_src, label=[label])
                pkt=str(parsed_pkt)
                self.dataplane.send(in_port, pkt)

                #build expect packet
                mac_dst='00:00:00:22:22:%02X' % out_port
                exp_pkt = simple_tcp_packet(pktlen=100, dl_vlan_enable=True, vlan_vid=out_port,
                    eth_dst=mac_dst, eth_src=switch_mac, ip_ttl=31, ip_src=ip_src, ip_dst=ip_dst)
                pkt=str(exp_pkt)
                verify_packet(self, pkt, out_port)
                verify_no_other_packets(self)
                
                parsed_pkt = simple_tcp_packet(pktlen=100, dl_vlan_enable=True, vlan_vid=in_port,
                    eth_dst=switch_mac, eth_src=mac_src, ip_ttl=64, ip_src=ip_src,
                    ip_dst=ip_dst)
                pkt=str(parsed_pkt)
                self.dataplane.send(in_port, pkt)
                #build expected packet
                mac_dst='00:00:00:22:22:%02X' % out_port
                exp_pkt = simple_tcp_packet(pktlen=100, dl_vlan_enable=True, vlan_vid=out_port,
                                       eth_dst=mac_dst, eth_src=switch_mac, ip_ttl=63,
                                       ip_src=ip_src, ip_dst=ip_dst)
                pkt=str(exp_pkt)
                verify_packet(self, pkt, out_port)
                verify_no_other_packets(self)

class L3McastToL2(base_tests.SimpleDataPlane):
    """
    Mcast routing to L2
    """
    def runTest(self):
        """
        port1 (vlan 300)-> All Ports (vlan 300)
        """
        #delete_all_flows(self.controller)
        #delete_all_groups(self.controller)

        if len(config["port_map"]) <3:
            logging.info("Port count less than 3, can't run this case")
            assert(False)
            return

        vlan_id =300
        intf_src_mac=[0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc]
        intf_src_mac_str=':'.join(['%02X' % x for x in intf_src_mac])
        dst_mac=[0x01, 0x00, 0x5e, 0x01, 0x01, 0x01]
        dst_mac_str=':'.join(['%02X' % x for x in dst_mac])
        port1_mac=[0x00, 0x11, 0x11, 0x11, 0x11, 0x11]
        port1_mac_str=':'.join(['%02X' % x for x in port1_mac])
        src_ip=0xc0a80101
        src_ip_str="192.168.1.1"
        dst_ip=0xe0010101
        dst_ip_str="224.1.1.1"

        port1=config["port_map"].keys()[0]
        port2=config["port_map"].keys()[1]

        switch_mac = [0x01, 0x00, 0x5e, 0x00, 0x00, 0x00]


        #add l2 interface group
        l2_intf_group_list=[]
        for port in config["port_map"].keys():
            add_one_vlan_table_flow(self.controller, port, vlan_id, flag=VLAN_TABLE_FLAG_ONLY_TAG) 
            if port == port2:
                continue
            l2_intf_gid, msg=add_one_l2_interface_group(self.controller, port, vlan_id=vlan_id, is_tagged=True, send_barrier=False)
            l2_intf_group_list.append(l2_intf_gid)

        #add termination flow
        add_termination_flow(self.controller, port1, 0x0800, switch_mac, vlan_id)

        #add l3 interface group
        mcat_group_msg=add_l3_mcast_group(self.controller, vlan_id,  2, l2_intf_group_list)
        add_mcast4_routing_flow(self.controller, vlan_id, src_ip, 0, dst_ip, mcat_group_msg.group_id)

        parsed_pkt = simple_udp_packet(pktlen=100, 
                                       dl_vlan_enable=True,
                                       vlan_vid=vlan_id,
                                       eth_dst=dst_mac_str,
                                       eth_src=port1_mac_str,
                                       ip_ttl=64,
                                       ip_src=src_ip_str,
                                       ip_dst=dst_ip_str)
        pkt=str(parsed_pkt)
        self.dataplane.send(port1, pkt)
        for port in config["port_map"].keys():
            if port == port2 or port == port1:
                 verify_no_packet(self, pkt, port)
                 continue
            verify_packet(self, pkt, port)
        verify_no_other_packets(self)

class L3McastToL3(base_tests.SimpleDataPlane):
    """
    Mcast routing
    """
    def runTest(self):          
        """
        port1 (vlan 1)-> port 2 (vlan 2)
        """
        delete_all_flows(self.controller)
        delete_all_groups(self.controller)

        if len(config["port_map"]) <3:
            logging.info("Port count less than 3, can't run this case")
            assert(False)
            return

        vlan_id =1
        port2_out_vlan=2
        port3_out_vlan=3
        in_vlan=1 #macast group vid shall use input vlan diffe from l3 interface use output vlan        
        intf_src_mac=[0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc]
        intf_src_mac_str=':'.join(['%02X' % x for x in intf_src_mac])        
        dst_mac=[0x01, 0x00, 0x5e, 0x01, 0x01, 0x01]
        dst_mac_str=':'.join(['%02X' % x for x in dst_mac])
        port1_mac=[0x00, 0x11, 0x11, 0x11, 0x11, 0x11]
        port1_mac_str=':'.join(['%02X' % x for x in port1_mac])
        src_ip=0xc0a80101
        src_ip_str="192.168.1.1"
        dst_ip=0xe0010101
        dst_ip_str="224.1.1.1"
        
        port1=config["port_map"].keys()[0]
        port2=config["port_map"].keys()[1]
        port3=config["port_map"].keys()[2]

        #add l2 interface group
        for port in config["port_map"].keys():        
            add_one_l2_interface_group(self.controller, port, vlan_id=vlan_id, is_tagged=False, send_barrier=False)
            #add vlan flow table
            add_one_vlan_table_flow(self.controller, port, vlan_id, flag=VLAN_TABLE_FLAG_ONLY_TAG)          
            vlan_id +=1            

        #add termination flow
        add_termination_flow(self.controller, port1, 0x0800, [0x01, 0x00, 0x5e, 0x00, 0x00, 0x00], vlan_id)

        #add l3 interface group
        port2_ucast_msg=add_l3_interface_group(self.controller, port2, port2_out_vlan, 2, intf_src_mac)
        port3_ucast_msg=add_l3_interface_group(self.controller, port3, port3_out_vlan, 3, intf_src_mac)        
        mcat_group_msg=add_l3_mcast_group(self.controller, in_vlan,  2, [port2_ucast_msg.group_id, port3_ucast_msg.group_id])
        add_mcast4_routing_flow(self.controller, in_vlan, src_ip, 0, dst_ip, mcat_group_msg.group_id)               
        
        parsed_pkt = simple_udp_packet(pktlen=100, dl_vlan_enable=True, vlan_vid=1,
                                       eth_dst=dst_mac_str,
                                       eth_src=port1_mac_str,
                                       ip_ttl=64,
                                       ip_src=src_ip_str,
                                       ip_dst=dst_ip_str)
        pkt=str(parsed_pkt)
        self.dataplane.send(port1, pkt)            
        parsed_pkt = simple_udp_packet(pktlen=96, 
                                       eth_dst=dst_mac_str,
                                       eth_src=intf_src_mac_str,
                                       ip_ttl=63,
                                       ip_src=src_ip_str,
                                       ip_dst=dst_ip_str)
        pkt=str(parsed_pkt)            
        verify_packet(self, pkt, port2)
        verify_packet(self, pkt, port3)        
        verify_no_other_packets(self)  



class _MplsTermination(base_tests.SimpleDataPlane):
    """
        Insert IP packet
        Receive MPLS packet
    """
    def runTest(self):
        delete_all_flows(self.controller)
        delete_all_groups(self.controller)

        if len(config["port_map"]) <2:
            logging.info("Port count less than 2, can't run this case")
            return

        intf_src_mac=[0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc]
        dst_mac=[0x00, 0x00, 0x00, 0x22, 0x22, 0x00]
        #Hashes Test Name and uses it as id for installing unique groups
        class_id=abs(hash(inspect.stack()[0][3])) % (256)
        ports = config["port_map"].keys()
        for port in ports:
            #add l2 interface group
            id = port + class_id<<8
            vlan_id=port+class_id
            l2_gid, l2_msg = add_one_l2_interface_group(self.controller, port, vlan_id, True, False)
            dst_mac[5]=vlan_id
            #add L3 Unicast  group
            l3_msg=add_l3_unicast_group(self.controller, port, vlanid=vlan_id, id=id, src_mac=intf_src_mac, dst_mac=dst_mac)
            #add L3 ecmp group
            ecmp_msg = add_l3_ecmp_group(self.controller, id, [l3_msg.group_id])
            #add vlan flow table
            add_one_vlan_table_flow(self.controller, port, vlan_id, flag=VLAN_TABLE_FLAG_ONLY_TAG)
            #add termination flow
            add_termination_flow(self.controller, port, 0x8847, intf_src_mac, vlan_id, goto_table=24)
            add_mpls_flow(self.controller, ecmp_msg.group_id, port)

        do_barrier(self.controller)

        switch_mac = ':'.join(['%02X' % x for x in intf_src_mac])
        for in_port in ports:
            ip_src='192.168.%02d.1' % (class_id+in_port)
            for out_port in ports:
                if in_port == out_port:
                    continue
                ip_dst='192.168.%02d.1' % (class_id+out_port)

                label = (out_port, 0, 1, 32)
                parsed_pkt = mpls_packet(pktlen=104, dl_vlan_enable=True, vlan_vid=(in_port+class_id), ip_src=ip_src,
                                         ip_dst=ip_dst, eth_dst=switch_mac, label=[label])
                pkt=str(parsed_pkt)
                self.dataplane.send(in_port, pkt)

                #build expect packet
                mac_dst='00:00:00:22:22:%02X' % (class_id+out_port)
                exp_pkt = simple_tcp_packet(pktlen=100, dl_vlan_enable=True, vlan_vid=(class_id+out_port),
                                            eth_dst=mac_dst, eth_src=switch_mac, ip_ttl=31, ip_src=ip_src, ip_dst=ip_dst)
                pkt=str(exp_pkt)
                verify_packet(self, pkt, out_port)
                verify_no_other_packets(self)

class _32ECMPL3(base_tests.SimpleDataPlane):
    """
    Port1(vid=in_port, src=00:00:00:22:22:in_port, 192.168.outport.1) ,
    Port2(vid=outport, dst=00:00:00:22:22:outport, 192.168.outport.1)
    """
    def runTest(self):
        delete_all_flows(self.controller)
        delete_all_groups(self.controller)

        if len(config["port_map"]) <2:
            logging.info("Port count less than 2, can't run this case")
            return

        intf_src_mac=[0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc]
        dst_mac=[0x00, 0x00, 0x00, 0x22, 0x22, 0x00]
        dip=0xc0a80001
        #Hashes Test Name and uses it as id for installing unique groups
        class_id=abs(hash(inspect.stack()[0][3])) % (256)
        ports = config["port_map"].keys()
        for port in ports:
            vlan_id=port
            id=port+class_id<<8
            #add l2 interface group
            add_one_l2_interface_group(self.controller, port, vlan_id=vlan_id, is_tagged=True, send_barrier=False)
            dst_mac[5]=vlan_id
            l3_msg=add_l3_unicast_group(self.controller, port, vlanid=vlan_id, id=id, src_mac=intf_src_mac, dst_mac=dst_mac)
            ecmp_msg=add_l3_ecmp_group(self.controller, id, [l3_msg.group_id])
            #add vlan flow table
            add_one_vlan_table_flow(self.controller, port, vlan_id,  flag=VLAN_TABLE_FLAG_ONLY_TAG)
            #add termination flow
            add_termination_flow(self.controller, port, 0x0800, intf_src_mac, vlan_id)
            #add unicast routing flow
            dst_ip = dip + (vlan_id<<8)
            add_unicast_routing_flow(self.controller, 0x0800, dst_ip, 0xffffffff, ecmp_msg.group_id)
        
        do_barrier(self.controller)

        switch_mac = ':'.join(['%02X' % x for x in intf_src_mac])
        for in_port in ports:
            mac_src='00:00:00:22:22:%02X' % in_port
            ip_src='192.168.%02d.1' % in_port
            for out_port in ports:
                if in_port == out_port:
                    continue
                ip_dst='192.168.%02d.1' % out_port
                parsed_pkt = simple_tcp_packet(pktlen=100, dl_vlan_enable=True, vlan_vid=in_port,
                                               eth_dst=switch_mac, eth_src=mac_src, ip_ttl=64, ip_src=ip_src,
                                               ip_dst=ip_dst)
                pkt=str(parsed_pkt)
                self.dataplane.send(in_port, pkt)
                #build expected packet
                mac_dst='00:00:00:22:22:%02X' % out_port
                exp_pkt = simple_tcp_packet(pktlen=100, dl_vlan_enable=True, vlan_vid=out_port,
                                            eth_dst=mac_dst, eth_src=switch_mac, ip_ttl=63,
                                            ip_src=ip_src, ip_dst=ip_dst)
                pkt=str(exp_pkt)
                verify_packet(self, pkt, out_port)
                verify_no_other_packets(self)