tests: move test source to vpp/test

- Generate copyright year and version
  instead of using hard-coded data

Type: refactor

Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Change-Id: I6058f5025323b3aa483f5df4a2c4371e27b5914e

1 files changed, 0 insertions, 2147 deletions

diff --git a/src/plugins/srv6-am/test/test_srv6.py b/src/plugins/srv6-am/test/test_srv6.py
deleted file mode 100644
index 449ad59ac60..00000000000
--- a/src/plugins/srv6-am/test/test_srv6.py
+++ /dev/null
@@ -1,2147 +0,0 @@
-#!/usr/bin/env python3
-
-import unittest
-import binascii
-from socket import AF_INET6
-
-from framework import VppTestCase, VppTestRunner
-from vpp_ip_route import VppIpRoute, VppRoutePath, FibPathProto, VppIpTable
-from vpp_srv6 import SRv6LocalSIDBehaviors, VppSRv6LocalSID, VppSRv6Policy, \
-    SRv6PolicyType, VppSRv6Steering, SRv6PolicySteeringTypes
-
-import scapy.compat
-from scapy.packet import Raw
-from scapy.layers.l2 import Ether, Dot1Q
-from scapy.layers.inet6 import IPv6, UDP, IPv6ExtHdrSegmentRouting
-from scapy.layers.inet import IP, UDP
-
-from util import ppp
-
-
-class TestSRv6(VppTestCase):
-    """ SRv6 Test Case """
-
-    @classmethod
-    def setUpClass(cls):
-        super(TestSRv6, cls).setUpClass()
-
-    @classmethod
-    def tearDownClass(cls):
-        super(TestSRv6, cls).tearDownClass()
-
-    def setUp(self):
-        """ Perform test setup before each test case.
-        """
-        super(TestSRv6, self).setUp()
-
-        # packet sizes, inclusive L2 overhead
-        self.pg_packet_sizes = [64, 512, 1518, 9018]
-
-        # reset packet_infos
-        self.reset_packet_infos()
-
-    def tearDown(self):
-        """ Clean up test setup after each test case.
-        """
-        self.teardown_interfaces()
-
-        super(TestSRv6, self).tearDown()
-
-    def configure_interface(self,
-                            interface,
-                            ipv6=False, ipv4=False,
-                            ipv6_table_id=0, ipv4_table_id=0):
-        """ Configure interface.
-        :param ipv6: configure IPv6 on interface
-        :param ipv4: configure IPv4 on interface
-        :param ipv6_table_id: FIB table_id for IPv6
-        :param ipv4_table_id: FIB table_id for IPv4
-        """
-        self.logger.debug("Configuring interface %s" % (interface.name))
-        if ipv6:
-            self.logger.debug("Configuring IPv6")
-            interface.set_table_ip6(ipv6_table_id)
-            interface.config_ip6()
-            interface.resolve_ndp(timeout=5)
-        if ipv4:
-            self.logger.debug("Configuring IPv4")
-            interface.set_table_ip4(ipv4_table_id)
-            interface.config_ip4()
-            interface.resolve_arp()
-        interface.admin_up()
-
-    def setup_interfaces(self, ipv6=[], ipv4=[],
-                         ipv6_table_id=[], ipv4_table_id=[]):
-        """ Create and configure interfaces.
-
-        :param ipv6: list of interface IPv6 capabilities
-        :param ipv4: list of interface IPv4 capabilities
-        :param ipv6_table_id: list of intf IPv6 FIB table_ids
-        :param ipv4_table_id: list of intf IPv4 FIB table_ids
-        :returns: List of created interfaces.
-        """
-        # how many interfaces?
-        if len(ipv6):
-            count = len(ipv6)
-        else:
-            count = len(ipv4)
-        self.logger.debug("Creating and configuring %d interfaces" % (count))
-
-        # fill up ipv6 and ipv4 lists if needed
-        # not enabled (False) is the default
-        if len(ipv6) < count:
-            ipv6 += (count - len(ipv6)) * [False]
-        if len(ipv4) < count:
-            ipv4 += (count - len(ipv4)) * [False]
-
-        # fill up table_id lists if needed
-        # table_id 0 (global) is the default
-        if len(ipv6_table_id) < count:
-            ipv6_table_id += (count - len(ipv6_table_id)) * [0]
-        if len(ipv4_table_id) < count:
-            ipv4_table_id += (count - len(ipv4_table_id)) * [0]
-
-        # create 'count' pg interfaces
-        self.create_pg_interfaces(range(count))
-
-        # setup all interfaces
-        for i in range(count):
-            intf = self.pg_interfaces[i]
-            self.configure_interface(intf,
-                                     ipv6[i], ipv4[i],
-                                     ipv6_table_id[i], ipv4_table_id[i])
-
-        if any(ipv6):
-            self.logger.debug(self.vapi.cli("show ip6 neighbors"))
-        if any(ipv4):
-            self.logger.debug(self.vapi.cli("show ip4 neighbors"))
-        self.logger.debug(self.vapi.cli("show interface"))
-        self.logger.debug(self.vapi.cli("show hardware"))
-
-        return self.pg_interfaces
-
-    def teardown_interfaces(self):
-        """ Unconfigure and bring down interface.
-        """
-        self.logger.debug("Tearing down interfaces")
-        # tear down all interfaces
-        # AFAIK they cannot be deleted
-        for i in self.pg_interfaces:
-            self.logger.debug("Tear down interface %s" % (i.name))
-            i.admin_down()
-            i.unconfig()
-            i.set_table_ip4(0)
-            i.set_table_ip6(0)
-
-    @unittest.skipUnless(0, "PC to fix")
-    def test_SRv6_T_Encaps(self):
-        """ Test SRv6 Transit.Encaps behavior for IPv6.
-        """
-        # send traffic to one destination interface
-        # source and destination are IPv6 only
-        self.setup_interfaces(ipv6=[True, True])
-
-        # configure FIB entries
-        route = VppIpRoute(self, "a4::", 64,
-                           [VppRoutePath(self.pg1.remote_ip6,
-                                         self.pg1.sw_if_index)])
-        route.add_vpp_config()
-
-        # configure encaps IPv6 source address
-        # needs to be done before SR Policy config
-        # TODO: API?
-        self.vapi.cli("set sr encaps source addr a3::")
-
-        bsid = 'a3::9999:1'
-        # configure SRv6 Policy
-        # Note: segment list order: first -> last
-        sr_policy = VppSRv6Policy(
-            self, bsid=bsid,
-            is_encap=1,
-            sr_type=SRv6PolicyType.SR_POLICY_TYPE_DEFAULT,
-            weight=1, fib_table=0,
-            segments=['a4::', 'a5::', 'a6::c7'],
-            source='a3::')
-        sr_policy.add_vpp_config()
-        self.sr_policy = sr_policy
-
-        # log the sr policies
-        self.logger.info(self.vapi.cli("show sr policies"))
-
-        # steer IPv6 traffic to a7::/64 into SRv6 Policy
-        # use the bsid of the above self.sr_policy
-        pol_steering = VppSRv6Steering(
-                        self,
-                        bsid=self.sr_policy.bsid,
-                        prefix="a7::", mask_width=64,
-                        traffic_type=SRv6PolicySteeringTypes.SR_STEER_IPV6,
-                        sr_policy_index=0, table_id=0,
-                        sw_if_index=0)
-        pol_steering.add_vpp_config()
-
-        # log the sr steering policies
-        self.logger.info(self.vapi.cli("show sr steering policies"))
-
-        # create packets
-        count = len(self.pg_packet_sizes)
-        dst_inner = 'a7::1234'
-        pkts = []
-
-        # create IPv6 packets without SRH
-        packet_header = self.create_packet_header_IPv6(dst_inner)
-        # create traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # create IPv6 packets with SRH
-        # packets with segments-left 1, active segment a7::
-        packet_header = self.create_packet_header_IPv6_SRH(
-            sidlist=['a8::', 'a7::', 'a6::'],
-            segleft=1)
-        # create traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # create IPv6 packets with SRH and IPv6
-        # packets with segments-left 1, active segment a7::
-        packet_header = self.create_packet_header_IPv6_SRH_IPv6(
-            dst_inner,
-            sidlist=['a8::', 'a7::', 'a6::'],
-            segleft=1)
-        # create traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        self.send_and_verify_pkts(self.pg0, pkts, self.pg1,
-                                  self.compare_rx_tx_packet_T_Encaps)
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove SR steering
-        pol_steering.remove_vpp_config()
-        self.logger.info(self.vapi.cli("show sr steering policies"))
-
-        # remove SR Policies
-        self.sr_policy.remove_vpp_config()
-        self.logger.info(self.vapi.cli("show sr policies"))
-
-        # remove FIB entries
-        # done by tearDown
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    @unittest.skipUnless(0, "PC to fix")
-    def test_SRv6_T_Insert(self):
-        """ Test SRv6 Transit.Insert behavior (IPv6 only).
-        """
-        # send traffic to one destination interface
-        # source and destination are IPv6 only
-        self.setup_interfaces(ipv6=[True, True])
-
-        # configure FIB entries
-        route = VppIpRoute(self, "a4::", 64,
-                           [VppRoutePath(self.pg1.remote_ip6,
-                                         self.pg1.sw_if_index)])
-        route.add_vpp_config()
-
-        # configure encaps IPv6 source address
-        # needs to be done before SR Policy config
-        # TODO: API?
-        self.vapi.cli("set sr encaps source addr a3::")
-
-        bsid = 'a3::9999:1'
-        # configure SRv6 Policy
-        # Note: segment list order: first -> last
-        sr_policy = VppSRv6Policy(
-            self, bsid=bsid,
-            is_encap=0,
-            sr_type=SRv6PolicyType.SR_POLICY_TYPE_DEFAULT,
-            weight=1, fib_table=0,
-            segments=['a4::', 'a5::', 'a6::c7'],
-            source='a3::')
-        sr_policy.add_vpp_config()
-        self.sr_policy = sr_policy
-
-        # log the sr policies
-        self.logger.info(self.vapi.cli("show sr policies"))
-
-        # steer IPv6 traffic to a7::/64 into SRv6 Policy
-        # use the bsid of the above self.sr_policy
-        pol_steering = VppSRv6Steering(
-                        self,
-                        bsid=self.sr_policy.bsid,
-                        prefix="a7::", mask_width=64,
-                        traffic_type=SRv6PolicySteeringTypes.SR_STEER_IPV6,
-                        sr_policy_index=0, table_id=0,
-                        sw_if_index=0)
-        pol_steering.add_vpp_config()
-
-        # log the sr steering policies
-        self.logger.info(self.vapi.cli("show sr steering policies"))
-
-        # create packets
-        count = len(self.pg_packet_sizes)
-        dst_inner = 'a7::1234'
-        pkts = []
-
-        # create IPv6 packets without SRH
-        packet_header = self.create_packet_header_IPv6(dst_inner)
-        # create traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # create IPv6 packets with SRH
-        # packets with segments-left 1, active segment a7::
-        packet_header = self.create_packet_header_IPv6_SRH(
-            sidlist=['a8::', 'a7::', 'a6::'],
-            segleft=1)
-        # create traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        self.send_and_verify_pkts(self.pg0, pkts, self.pg1,
-                                  self.compare_rx_tx_packet_T_Insert)
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove SR steering
-        pol_steering.remove_vpp_config()
-        self.logger.info(self.vapi.cli("show sr steering policies"))
-
-        # remove SR Policies
-        self.sr_policy.remove_vpp_config()
-        self.logger.info(self.vapi.cli("show sr policies"))
-
-        # remove FIB entries
-        # done by tearDown
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    @unittest.skipUnless(0, "PC to fix")
-    def test_SRv6_T_Encaps_IPv4(self):
-        """ Test SRv6 Transit.Encaps behavior for IPv4.
-        """
-        # send traffic to one destination interface
-        # source interface is IPv4 only
-        # destination interface is IPv6 only
-        self.setup_interfaces(ipv6=[False, True], ipv4=[True, False])
-
-        # configure FIB entries
-        route = VppIpRoute(self, "a4::", 64,
-                           [VppRoutePath(self.pg1.remote_ip6,
-                                         self.pg1.sw_if_index)])
-        route.add_vpp_config()
-
-        # configure encaps IPv6 source address
-        # needs to be done before SR Policy config
-        # TODO: API?
-        self.vapi.cli("set sr encaps source addr a3::")
-
-        bsid = 'a3::9999:1'
-        # configure SRv6 Policy
-        # Note: segment list order: first -> last
-        sr_policy = VppSRv6Policy(
-            self, bsid=bsid,
-            is_encap=1,
-            sr_type=SRv6PolicyType.SR_POLICY_TYPE_DEFAULT,
-            weight=1, fib_table=0,
-            segments=['a4::', 'a5::', 'a6::c7'],
-            source='a3::')
-        sr_policy.add_vpp_config()
-        self.sr_policy = sr_policy
-
-        # log the sr policies
-        self.logger.info(self.vapi.cli("show sr policies"))
-
-        # steer IPv4 traffic to 7.1.1.0/24 into SRv6 Policy
-        # use the bsid of the above self.sr_policy
-        pol_steering = VppSRv6Steering(
-                        self,
-                        bsid=self.sr_policy.bsid,
-                        prefix="7.1.1.0", mask_width=24,
-                        traffic_type=SRv6PolicySteeringTypes.SR_STEER_IPV4,
-                        sr_policy_index=0, table_id=0,
-                        sw_if_index=0)
-        pol_steering.add_vpp_config()
-
-        # log the sr steering policies
-        self.logger.info(self.vapi.cli("show sr steering policies"))
-
-        # create packets
-        count = len(self.pg_packet_sizes)
-        dst_inner = '7.1.1.123'
-        pkts = []
-
-        # create IPv4 packets
-        packet_header = self.create_packet_header_IPv4(dst_inner)
-        # create traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        self.send_and_verify_pkts(self.pg0, pkts, self.pg1,
-                                  self.compare_rx_tx_packet_T_Encaps_IPv4)
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove SR steering
-        pol_steering.remove_vpp_config()
-        self.logger.info(self.vapi.cli("show sr steering policies"))
-
-        # remove SR Policies
-        self.sr_policy.remove_vpp_config()
-        self.logger.info(self.vapi.cli("show sr policies"))
-
-        # remove FIB entries
-        # done by tearDown
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    @unittest.skip("VPP crashes after running this test")
-    def test_SRv6_T_Encaps_L2(self):
-        """ Test SRv6 Transit.Encaps behavior for L2.
-        """
-        # send traffic to one destination interface
-        # source interface is IPv4 only TODO?
-        # destination interface is IPv6 only
-        self.setup_interfaces(ipv6=[False, True], ipv4=[False, False])
-
-        # configure FIB entries
-        route = VppIpRoute(self, "a4::", 64,
-                           [VppRoutePath(self.pg1.remote_ip6,
-                                         self.pg1.sw_if_index)])
-        route.add_vpp_config()
-
-        # configure encaps IPv6 source address
-        # needs to be done before SR Policy config
-        # TODO: API?
-        self.vapi.cli("set sr encaps source addr a3::")
-
-        bsid = 'a3::9999:1'
-        # configure SRv6 Policy
-        # Note: segment list order: first -> last
-        sr_policy = VppSRv6Policy(
-            self, bsid=bsid,
-            is_encap=1,
-            sr_type=SRv6PolicyType.SR_POLICY_TYPE_DEFAULT,
-            weight=1, fib_table=0,
-            segments=['a4::', 'a5::', 'a6::c7'],
-            source='a3::')
-        sr_policy.add_vpp_config()
-        self.sr_policy = sr_policy
-
-        # log the sr policies
-        self.logger.info(self.vapi.cli("show sr policies"))
-
-        # steer L2 traffic into SRv6 Policy
-        # use the bsid of the above self.sr_policy
-        pol_steering = VppSRv6Steering(
-                        self,
-                        bsid=self.sr_policy.bsid,
-                        prefix="::", mask_width=0,
-                        traffic_type=SRv6PolicySteeringTypes.SR_STEER_L2,
-                        sr_policy_index=0, table_id=0,
-                        sw_if_index=self.pg0.sw_if_index)
-        pol_steering.add_vpp_config()
-
-        # log the sr steering policies
-        self.logger.info(self.vapi.cli("show sr steering policies"))
-
-        # create packets
-        count = len(self.pg_packet_sizes)
-        pkts = []
-
-        # create L2 packets without dot1q header
-        packet_header = self.create_packet_header_L2()
-        # create traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # create L2 packets with dot1q header
-        packet_header = self.create_packet_header_L2(vlan=123)
-        # create traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        self.send_and_verify_pkts(self.pg0, pkts, self.pg1,
-                                  self.compare_rx_tx_packet_T_Encaps_L2)
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove SR steering
-        pol_steering.remove_vpp_config()
-        self.logger.info(self.vapi.cli("show sr steering policies"))
-
-        # remove SR Policies
-        self.sr_policy.remove_vpp_config()
-        self.logger.info(self.vapi.cli("show sr policies"))
-
-        # remove FIB entries
-        # done by tearDown
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    def test_SRv6_End(self):
-        """ Test SRv6 End (without PSP) behavior.
-        """
-        # send traffic to one destination interface
-        # source and destination interfaces are IPv6 only
-        self.setup_interfaces(ipv6=[True, True])
-
-        # configure FIB entries
-        route = VppIpRoute(self, "a4::", 64,
-                           [VppRoutePath(self.pg1.remote_ip6,
-                                         self.pg1.sw_if_index)])
-        route.add_vpp_config()
-
-        # configure SRv6 localSID End without PSP behavior
-        localsid = VppSRv6LocalSID(
-                        self, localsid='A3::0',
-                        behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_END,
-                        nh_addr=0,
-                        end_psp=0,
-                        sw_if_index=0,
-                        vlan_index=0,
-                        fib_table=0)
-        localsid.add_vpp_config()
-        # log the localsids
-        self.logger.debug(self.vapi.cli("show sr localsid"))
-
-        # create IPv6 packets with SRH (SL=2, SL=1, SL=0)
-        # send one packet per SL value per packet size
-        # SL=0 packet with localSID End with USP needs 2nd SRH
-        count = len(self.pg_packet_sizes)
-        dst_inner = 'a4::1234'
-        pkts = []
-
-        # packets with segments-left 2, active segment a3::
-        packet_header = self.create_packet_header_IPv6_SRH_IPv6(
-                dst_inner,
-                sidlist=['a5::', 'a4::', 'a3::'],
-                segleft=2)
-        # create traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # packets with segments-left 1, active segment a3::
-        packet_header = self.create_packet_header_IPv6_SRH_IPv6(
-                dst_inner,
-                sidlist=['a4::', 'a3::', 'a2::'],
-                segleft=1)
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # TODO: test behavior with SL=0 packet (needs 2*SRH?)
-
-        expected_count = len(pkts)
-
-        # packets without SRH (should not crash)
-        packet_header = self.create_packet_header_IPv6('a3::')
-        # create traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        self.send_and_verify_pkts(self.pg0, pkts, self.pg1,
-                                  self.compare_rx_tx_packet_End,
-                                  expected_count=expected_count)
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove SRv6 localSIDs
-        localsid.remove_vpp_config()
-
-        # remove FIB entries
-        # done by tearDown
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    def test_SRv6_End_with_PSP(self):
-        """ Test SRv6 End with PSP behavior.
-        """
-        # send traffic to one destination interface
-        # source and destination interfaces are IPv6 only
-        self.setup_interfaces(ipv6=[True, True])
-
-        # configure FIB entries
-        route = VppIpRoute(self, "a4::", 64,
-                           [VppRoutePath(self.pg1.remote_ip6,
-                                         self.pg1.sw_if_index)])
-        route.add_vpp_config()
-
-        # configure SRv6 localSID End with PSP behavior
-        localsid = VppSRv6LocalSID(
-                        self, localsid='A3::0',
-                        behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_END,
-                        nh_addr=0,
-                        end_psp=1,
-                        sw_if_index=0,
-                        vlan_index=0,
-                        fib_table=0)
-        localsid.add_vpp_config()
-        # log the localsids
-        self.logger.debug(self.vapi.cli("show sr localsid"))
-
-        # create IPv6 packets with SRH (SL=2, SL=1)
-        # send one packet per SL value per packet size
-        # SL=0 packet with localSID End with PSP is dropped
-        count = len(self.pg_packet_sizes)
-        dst_inner = 'a4::1234'
-        pkts = []
-
-        # packets with segments-left 2, active segment a3::
-        packet_header = self.create_packet_header_IPv6_SRH_IPv6(
-                    dst_inner,
-                    sidlist=['a5::', 'a4::', 'a3::'],
-                    segleft=2)
-        # create traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # packets with segments-left 1, active segment a3::
-        packet_header = self.create_packet_header_IPv6_SRH_IPv6(
-                    dst_inner,
-                    sidlist=['a4::', 'a3::', 'a2::'],
-                    segleft=1)
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        self.send_and_verify_pkts(self.pg0, pkts, self.pg1,
-                                  self.compare_rx_tx_packet_End_PSP)
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove SRv6 localSIDs
-        localsid.remove_vpp_config()
-
-        # remove FIB entries
-        # done by tearDown
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    def test_SRv6_End_X(self):
-        """ Test SRv6 End.X (without PSP) behavior.
-        """
-        # create three interfaces (1 source, 2 destinations)
-        # source and destination interfaces are IPv6 only
-        self.setup_interfaces(ipv6=[True, True, True])
-
-        # configure FIB entries
-        # a4::/64 via pg1 and pg2
-        route = VppIpRoute(self, "a4::", 64,
-                           [VppRoutePath(self.pg1.remote_ip6,
-                                         self.pg1.sw_if_index),
-                            VppRoutePath(self.pg2.remote_ip6,
-                                         self.pg2.sw_if_index)])
-        route.add_vpp_config()
-        self.logger.debug(self.vapi.cli("show ip6 fib"))
-
-        # configure SRv6 localSID End.X without PSP behavior
-        # End.X points to interface pg1
-        localsid = VppSRv6LocalSID(
-                        self, localsid='A3::C4',
-                        behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_X,
-                        nh_addr=self.pg1.remote_ip6,
-                        end_psp=0,
-                        sw_if_index=self.pg1.sw_if_index,
-                        vlan_index=0,
-                        fib_table=0)
-        localsid.add_vpp_config()
-        # log the localsids
-        self.logger.debug(self.vapi.cli("show sr localsid"))
-
-        # create IPv6 packets with SRH (SL=2, SL=1)
-        # send one packet per SL value per packet size
-        # SL=0 packet with localSID End with PSP is dropped
-        count = len(self.pg_packet_sizes)
-        dst_inner = 'a4::1234'
-        pkts = []
-
-        # packets with segments-left 2, active segment a3::c4
-        packet_header = self.create_packet_header_IPv6_SRH_IPv6(
-                    dst_inner,
-                    sidlist=['a5::', 'a4::', 'a3::c4'],
-                    segleft=2)
-        # create traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # packets with segments-left 1, active segment a3::c4
-        packet_header = self.create_packet_header_IPv6_SRH_IPv6(
-                    dst_inner,
-                    sidlist=['a4::', 'a3::c4', 'a2::'],
-                    segleft=1)
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        # using same comparison function as End (no PSP)
-        self.send_and_verify_pkts(self.pg0, pkts, self.pg1,
-                                  self.compare_rx_tx_packet_End)
-
-        # assert nothing was received on the other interface (pg2)
-        self.pg2.assert_nothing_captured("mis-directed packet(s)")
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove SRv6 localSIDs
-        localsid.remove_vpp_config()
-
-        # remove FIB entries
-        # done by tearDown
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    def test_SRv6_End_X_with_PSP(self):
-        """ Test SRv6 End.X with PSP behavior.
-        """
-        # create three interfaces (1 source, 2 destinations)
-        # source and destination interfaces are IPv6 only
-        self.setup_interfaces(ipv6=[True, True, True])
-
-        # configure FIB entries
-        # a4::/64 via pg1 and pg2
-        route = VppIpRoute(self, "a4::", 64,
-                           [VppRoutePath(
-                               self.pg1.remote_ip6,
-                               self.pg1.sw_if_index),
-                            VppRoutePath(self.pg2.remote_ip6,
-                                         self.pg2.sw_if_index)])
-        route.add_vpp_config()
-
-        # configure SRv6 localSID End with PSP behavior
-        localsid = VppSRv6LocalSID(
-                        self, localsid='A3::C4',
-                        behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_X,
-                        nh_addr=self.pg1.remote_ip6,
-                        end_psp=1,
-                        sw_if_index=self.pg1.sw_if_index,
-                        vlan_index=0,
-                        fib_table=0)
-        localsid.add_vpp_config()
-        # log the localsids
-        self.logger.debug(self.vapi.cli("show sr localsid"))
-
-        # create IPv6 packets with SRH (SL=2, SL=1)
-        # send one packet per SL value per packet size
-        # SL=0 packet with localSID End with PSP is dropped
-        count = len(self.pg_packet_sizes)
-        dst_inner = 'a4::1234'
-        pkts = []
-
-        # packets with segments-left 2, active segment a3::
-        packet_header = self.create_packet_header_IPv6_SRH_IPv6(
-                    dst_inner,
-                    sidlist=['a5::', 'a4::', 'a3::c4'],
-                    segleft=2)
-        # create traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # packets with segments-left 1, active segment a3::
-        packet_header = self.create_packet_header_IPv6_SRH_IPv6(
-                    dst_inner,
-                    sidlist=['a4::', 'a3::c4', 'a2::'],
-                    segleft=1)
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        # using same comparison function as End with PSP
-        self.send_and_verify_pkts(self.pg0, pkts, self.pg1,
-                                  self.compare_rx_tx_packet_End_PSP)
-
-        # assert nothing was received on the other interface (pg2)
-        self.pg2.assert_nothing_captured("mis-directed packet(s)")
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove SRv6 localSIDs
-        localsid.remove_vpp_config()
-
-        # remove FIB entries
-        # done by tearDown
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    def test_SRv6_End_DX6(self):
-        """ Test SRv6 End.DX6 behavior.
-        """
-        # send traffic to one destination interface
-        # source and destination interfaces are IPv6 only
-        self.setup_interfaces(ipv6=[True, True])
-
-        # configure SRv6 localSID End.DX6 behavior
-        localsid = VppSRv6LocalSID(
-                        self, localsid='A3::C4',
-                        behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DX6,
-                        nh_addr=self.pg1.remote_ip6,
-                        end_psp=0,
-                        sw_if_index=self.pg1.sw_if_index,
-                        vlan_index=0,
-                        fib_table=0)
-        localsid.add_vpp_config()
-        # log the localsids
-        self.logger.debug(self.vapi.cli("show sr localsid"))
-
-        # create IPv6 packets with SRH (SL=0)
-        # send one packet per packet size
-        count = len(self.pg_packet_sizes)
-        dst_inner = 'a4::1234'  # inner header destination address
-        pkts = []
-
-        # packets with SRH, segments-left 0, active segment a3::c4
-        packet_header = self.create_packet_header_IPv6_SRH_IPv6(
-                        dst_inner,
-                        sidlist=['a3::c4', 'a2::', 'a1::'],
-                        segleft=0)
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # packets without SRH, IPv6 in IPv6
-        # outer IPv6 dest addr is the localsid End.DX6
-        packet_header = self.create_packet_header_IPv6_IPv6(
-                                            dst_inner,
-                                            dst_outer='a3::c4')
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        self.send_and_verify_pkts(self.pg0, pkts, self.pg1,
-                                  self.compare_rx_tx_packet_End_DX6)
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove SRv6 localSIDs
-        localsid.remove_vpp_config()
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    def test_SRv6_End_DT6(self):
-        """ Test SRv6 End.DT6 behavior.
-        """
-        # create three interfaces (1 source, 2 destinations)
-        # all interfaces are IPv6 only
-        # source interface in global FIB (0)
-        # destination interfaces in global and vrf
-        vrf_1 = 1
-        ipt = VppIpTable(self, vrf_1, is_ip6=True)
-        ipt.add_vpp_config()
-        self.setup_interfaces(ipv6=[True, True, True],
-                              ipv6_table_id=[0, 0, vrf_1])
-
-        # configure FIB entries
-        # a4::/64 is reachable
-        #     via pg1 in table 0 (global)
-        #     and via pg2 in table vrf_1
-        route0 = VppIpRoute(self, "a4::", 64,
-                            [VppRoutePath(self.pg1.remote_ip6,
-                                          self.pg1.sw_if_index,
-                                          nh_table_id=0)],
-                            table_id=0)
-        route0.add_vpp_config()
-        route1 = VppIpRoute(self, "a4::", 64,
-                            [VppRoutePath(self.pg2.remote_ip6,
-                                          self.pg2.sw_if_index,
-                                          nh_table_id=vrf_1)],
-                            table_id=vrf_1)
-        route1.add_vpp_config()
-        self.logger.debug(self.vapi.cli("show ip6 fib"))
-
-        # configure SRv6 localSID End.DT6 behavior
-        # Note:
-        # fib_table: where the localsid is installed
-        # sw_if_index: in T-variants of localsid this is the vrf table_id
-        localsid = VppSRv6LocalSID(
-                        self, localsid='A3::C4',
-                        behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DT6,
-                        nh_addr=0,
-                        end_psp=0,
-                        sw_if_index=vrf_1,
-                        vlan_index=0,
-                        fib_table=0)
-        localsid.add_vpp_config()
-        # log the localsids
-        self.logger.debug(self.vapi.cli("show sr localsid"))
-
-        # create IPv6 packets with SRH (SL=0)
-        # send one packet per packet size
-        count = len(self.pg_packet_sizes)
-        dst_inner = 'a4::1234'  # inner header destination address
-        pkts = []
-
-        # packets with SRH, segments-left 0, active segment a3::c4
-        packet_header = self.create_packet_header_IPv6_SRH_IPv6(
-                        dst_inner,
-                        sidlist=['a3::c4', 'a2::', 'a1::'],
-                        segleft=0)
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg2, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # packets without SRH, IPv6 in IPv6
-        # outer IPv6 dest addr is the localsid End.DT6
-        packet_header = self.create_packet_header_IPv6_IPv6(
-                                            dst_inner,
-                                            dst_outer='a3::c4')
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg2, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        # using same comparison function as End.DX6
-        self.send_and_verify_pkts(self.pg0, pkts, self.pg2,
-                                  self.compare_rx_tx_packet_End_DX6)
-
-        # assert nothing was received on the other interface (pg2)
-        self.pg1.assert_nothing_captured("mis-directed packet(s)")
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove SRv6 localSIDs
-        localsid.remove_vpp_config()
-
-        # remove FIB entries
-        # done by tearDown
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    def test_SRv6_End_DX4(self):
-        """ Test SRv6 End.DX4 behavior.
-        """
-        # send traffic to one destination interface
-        # source interface is IPv6 only
-        # destination interface is IPv4 only
-        self.setup_interfaces(ipv6=[True, False], ipv4=[False, True])
-
-        # configure SRv6 localSID End.DX4 behavior
-        localsid = VppSRv6LocalSID(
-                        self, localsid='A3::C4',
-                        behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DX4,
-                        nh_addr=self.pg1.remote_ip4,
-                        end_psp=0,
-                        sw_if_index=self.pg1.sw_if_index,
-                        vlan_index=0,
-                        fib_table=0)
-        localsid.add_vpp_config()
-        # log the localsids
-        self.logger.debug(self.vapi.cli("show sr localsid"))
-
-        # send one packet per packet size
-        count = len(self.pg_packet_sizes)
-        dst_inner = '4.1.1.123'  # inner header destination address
-        pkts = []
-
-        # packets with SRH, segments-left 0, active segment a3::c4
-        packet_header = self.create_packet_header_IPv6_SRH_IPv4(
-                        dst_inner,
-                        sidlist=['a3::c4', 'a2::', 'a1::'],
-                        segleft=0)
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # packets without SRH, IPv4 in IPv6
-        # outer IPv6 dest addr is the localsid End.DX4
-        packet_header = self.create_packet_header_IPv6_IPv4(
-                                            dst_inner,
-                                            dst_outer='a3::c4')
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        self.send_and_verify_pkts(self.pg0, pkts, self.pg1,
-                                  self.compare_rx_tx_packet_End_DX4)
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove SRv6 localSIDs
-        localsid.remove_vpp_config()
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    def test_SRv6_End_DT4(self):
-        """ Test SRv6 End.DT4 behavior.
-        """
-        # create three interfaces (1 source, 2 destinations)
-        # source interface is IPv6-only
-        # destination interfaces are IPv4 only
-        # source interface in global FIB (0)
-        # destination interfaces in global and vrf
-        vrf_1 = 1
-        ipt = VppIpTable(self, vrf_1)
-        ipt.add_vpp_config()
-        self.setup_interfaces(ipv6=[True, False, False],
-                              ipv4=[False, True, True],
-                              ipv6_table_id=[0, 0, 0],
-                              ipv4_table_id=[0, 0, vrf_1])
-
-        # configure FIB entries
-        # 4.1.1.0/24 is reachable
-        #     via pg1 in table 0 (global)
-        #     and via pg2 in table vrf_1
-        route0 = VppIpRoute(self, "4.1.1.0", 24,
-                            [VppRoutePath(self.pg1.remote_ip4,
-                                          self.pg1.sw_if_index,
-                                          nh_table_id=0)],
-                            table_id=0)
-        route0.add_vpp_config()
-        route1 = VppIpRoute(self, "4.1.1.0", 24,
-                            [VppRoutePath(self.pg2.remote_ip4,
-                                          self.pg2.sw_if_index,
-                                          nh_table_id=vrf_1)],
-                            table_id=vrf_1)
-        route1.add_vpp_config()
-        self.logger.debug(self.vapi.cli("show ip fib"))
-
-        # configure SRv6 localSID End.DT6 behavior
-        # Note:
-        # fib_table: where the localsid is installed
-        # sw_if_index: in T-variants of localsid: vrf table_id
-        localsid = VppSRv6LocalSID(
-                        self, localsid='A3::C4',
-                        behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DT4,
-                        nh_addr=0,
-                        end_psp=0,
-                        sw_if_index=vrf_1,
-                        vlan_index=0,
-                        fib_table=0)
-        localsid.add_vpp_config()
-        # log the localsids
-        self.logger.debug(self.vapi.cli("show sr localsid"))
-
-        # create IPv6 packets with SRH (SL=0)
-        # send one packet per packet size
-        count = len(self.pg_packet_sizes)
-        dst_inner = '4.1.1.123'  # inner header destination address
-        pkts = []
-
-        # packets with SRH, segments-left 0, active segment a3::c4
-        packet_header = self.create_packet_header_IPv6_SRH_IPv4(
-                        dst_inner,
-                        sidlist=['a3::c4', 'a2::', 'a1::'],
-                        segleft=0)
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg2, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # packets without SRH, IPv6 in IPv6
-        # outer IPv6 dest addr is the localsid End.DX4
-        packet_header = self.create_packet_header_IPv6_IPv4(
-                                            dst_inner,
-                                            dst_outer='a3::c4')
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg2, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        # using same comparison function as End.DX4
-        self.send_and_verify_pkts(self.pg0, pkts, self.pg2,
-                                  self.compare_rx_tx_packet_End_DX4)
-
-        # assert nothing was received on the other interface (pg2)
-        self.pg1.assert_nothing_captured("mis-directed packet(s)")
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove SRv6 localSIDs
-        localsid.remove_vpp_config()
-
-        # remove FIB entries
-        # done by tearDown
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    def test_SRv6_End_DX2(self):
-        """ Test SRv6 End.DX2 behavior.
-        """
-        # send traffic to one destination interface
-        # source interface is IPv6 only
-        self.setup_interfaces(ipv6=[True, False], ipv4=[False, False])
-
-        # configure SRv6 localSID End.DX2 behavior
-        localsid = VppSRv6LocalSID(
-                        self, localsid='A3::C4',
-                        behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DX2,
-                        nh_addr=0,
-                        end_psp=0,
-                        sw_if_index=self.pg1.sw_if_index,
-                        vlan_index=0,
-                        fib_table=0)
-        localsid.add_vpp_config()
-        # log the localsids
-        self.logger.debug(self.vapi.cli("show sr localsid"))
-
-        # send one packet per packet size
-        count = len(self.pg_packet_sizes)
-        pkts = []
-
-        # packets with SRH, segments-left 0, active segment a3::c4
-        # L2 has no dot1q header
-        packet_header = self.create_packet_header_IPv6_SRH_L2(
-                            sidlist=['a3::c4', 'a2::', 'a1::'],
-                            segleft=0,
-                            vlan=0)
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # packets with SRH, segments-left 0, active segment a3::c4
-        # L2 has dot1q header
-        packet_header = self.create_packet_header_IPv6_SRH_L2(
-                            sidlist=['a3::c4', 'a2::', 'a1::'],
-                            segleft=0,
-                            vlan=123)
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # packets without SRH, L2 in IPv6
-        # outer IPv6 dest addr is the localsid End.DX2
-        # L2 has no dot1q header
-        packet_header = self.create_packet_header_IPv6_L2(
-                                            dst_outer='a3::c4',
-                                            vlan=0)
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # packets without SRH, L2 in IPv6
-        # outer IPv6 dest addr is the localsid End.DX2
-        # L2 has dot1q header
-        packet_header = self.create_packet_header_IPv6_L2(
-                                            dst_outer='a3::c4',
-                                            vlan=123)
-        # add to traffic stream pg0->pg1
-        pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        self.send_and_verify_pkts(self.pg0, pkts, self.pg1,
-                                  self.compare_rx_tx_packet_End_DX2)
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove SRv6 localSIDs
-        localsid.remove_vpp_config()
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    @unittest.skipUnless(0, "PC to fix")
-    def test_SRv6_T_Insert_Classifier(self):
-        """ Test SRv6 Transit.Insert behavior (IPv6 only).
-            steer packets using the classifier
-        """
-        # send traffic to one destination interface
-        # source and destination are IPv6 only
-        self.setup_interfaces(ipv6=[False, False, False, True, True])
-
-        # configure FIB entries
-        route = VppIpRoute(self, "a4::", 64,
-                           [VppRoutePath(
-                               self.pg4.remote_ip6,
-                               self.pg4.sw_if_index)])
-        route.add_vpp_config()
-
-        # configure encaps IPv6 source address
-        # needs to be done before SR Policy config
-        # TODO: API?
-        self.vapi.cli("set sr encaps source addr a3::")
-
-        bsid = 'a3::9999:1'
-        # configure SRv6 Policy
-        # Note: segment list order: first -> last
-        sr_policy = VppSRv6Policy(
-            self, bsid=bsid,
-            is_encap=0,
-            sr_type=SRv6PolicyType.SR_POLICY_TYPE_DEFAULT,
-            weight=1, fib_table=0,
-            segments=['a4::', 'a5::', 'a6::c7'],
-            source='a3::')
-        sr_policy.add_vpp_config()
-        self.sr_policy = sr_policy
-
-        # log the sr policies
-        self.logger.info(self.vapi.cli("show sr policies"))
-
-        # add classify table
-        # mask on dst ip address prefix a7::/8
-        mask = '{!s:0<16}'.format('ff')
-        r = self.vapi.classify_add_del_table(
-            1,
-            binascii.unhexlify(mask),
-            match_n_vectors=(len(mask) - 1) // 32 + 1,
-            current_data_flag=1,
-            skip_n_vectors=2)  # data offset
-        self.assertIsNotNone(r, 'No response msg for add_del_table')
-        table_index = r.new_table_index
-
-        # add the source routing node as a ip6 inacl netxt node
-        r = self.vapi.add_node_next('ip6-inacl',
-                                    'sr-pl-rewrite-insert')
-        inacl_next_node_index = r.node_index
-
-        match = '{!s:0<16}'.format('a7')
-        r = self.vapi.classify_add_del_session(
-            1,
-            table_index,
-            binascii.unhexlify(match),
-            hit_next_index=inacl_next_node_index,
-            action=3,
-            metadata=0)  # sr policy index
-        self.assertIsNotNone(r, 'No response msg for add_del_session')
-
-        # log the classify table used in the steering policy
-        self.logger.info(self.vapi.cli("show classify table"))
-
-        r = self.vapi.input_acl_set_interface(
-            is_add=1,
-            sw_if_index=self.pg3.sw_if_index,
-            ip6_table_index=table_index)
-        self.assertIsNotNone(r,
-                             'No response msg for input_acl_set_interface')
-
-        # log the ip6 inacl
-        self.logger.info(self.vapi.cli("show inacl type ip6"))
-
-        # create packets
-        count = len(self.pg_packet_sizes)
-        dst_inner = 'a7::1234'
-        pkts = []
-
-        # create IPv6 packets without SRH
-        packet_header = self.create_packet_header_IPv6(dst_inner)
-        # create traffic stream pg3->pg4
-        pkts.extend(self.create_stream(self.pg3, self.pg4, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # create IPv6 packets with SRH
-        # packets with segments-left 1, active segment a7::
-        packet_header = self.create_packet_header_IPv6_SRH(
-            sidlist=['a8::', 'a7::', 'a6::'],
-            segleft=1)
-        # create traffic stream pg3->pg4
-        pkts.extend(self.create_stream(self.pg3, self.pg4, packet_header,
-                                       self.pg_packet_sizes, count))
-
-        # send packets and verify received packets
-        self.send_and_verify_pkts(self.pg3, pkts, self.pg4,
-                                  self.compare_rx_tx_packet_T_Insert)
-
-        # remove the interface l2 input feature
-        r = self.vapi.input_acl_set_interface(
-            is_add=0,
-            sw_if_index=self.pg3.sw_if_index,
-            ip6_table_index=table_index)
-        self.assertIsNotNone(r,
-                             'No response msg for input_acl_set_interface')
-
-        # log the ip6 inacl after cleaning
-        self.logger.info(self.vapi.cli("show inacl type ip6"))
-
-        # log the localsid counters
-        self.logger.info(self.vapi.cli("show sr localsid"))
-
-        # remove classifier SR steering
-        # classifier_steering.remove_vpp_config()
-        self.logger.info(self.vapi.cli("show sr steering policies"))
-
-        # remove SR Policies
-        self.sr_policy.remove_vpp_config()
-        self.logger.info(self.vapi.cli("show sr policies"))
-
-        # remove classify session and table
-        r = self.vapi.classify_add_del_session(
-            0,
-            table_index,
-            binascii.unhexlify(match))
-        self.assertIsNotNone(r, 'No response msg for add_del_session')
-
-        r = self.vapi.classify_add_del_table(
-            0,
-            binascii.unhexlify(mask),
-            table_index=table_index)
-        self.assertIsNotNone(r, 'No response msg for add_del_table')
-
-        self.logger.info(self.vapi.cli("show classify table"))
-
-        # remove FIB entries
-        # done by tearDown
-
-        # cleanup interfaces
-        self.teardown_interfaces()
-
-    def compare_rx_tx_packet_T_Encaps(self, tx_pkt, rx_pkt):
-        """ Compare input and output packet after passing T.Encaps
-
-        :param tx_pkt: transmitted packet
-        :param rx_pkt: received packet
-        """
-        # T.Encaps updates the headers as follows:
-        # SR Policy seglist (S3, S2, S1)
-        # SR Policy source C
-        # IPv6:
-        # in: IPv6(A, B2)
-        # out: IPv6(C, S1)SRH(S3, S2, S1; SL=2)IPv6(A, B2)
-        # IPv6 + SRH:
-        # in: IPv6(A, B2)SRH(B3, B2, B1; SL=1)
-        # out: IPv6(C, S1)SRH(S3, S2, S1; SL=2)IPv6(a, B2)SRH(B3, B2, B1; SL=1)
-
-        # get first (outer) IPv6 header of rx'ed packet
-        rx_ip = rx_pkt.getlayer(IPv6)
-        rx_srh = None
-
-        tx_ip = tx_pkt.getlayer(IPv6)
-
-        # expected segment-list
-        seglist = self.sr_policy.segments
-        # reverse list to get order as in SRH
-        tx_seglist = seglist[::-1]
-
-        # get source address of SR Policy
-        sr_policy_source = self.sr_policy.source
-
-        # rx'ed packet should have SRH
-        self.assertTrue(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
-        # get SRH
-        rx_srh = rx_pkt.getlayer(IPv6ExtHdrSegmentRouting)
-
-        # received ip.src should be equal to SR Policy source
-        self.assertEqual(rx_ip.src, sr_policy_source)
-        # received ip.dst should be equal to expected sidlist[lastentry]
-        self.assertEqual(rx_ip.dst, tx_seglist[-1])
-        # rx'ed seglist should be equal to expected seglist
-        self.assertEqual(rx_srh.addresses, tx_seglist)
-        # segleft should be equal to size expected seglist-1
-        self.assertEqual(rx_srh.segleft, len(tx_seglist)-1)
-        # segleft should be equal to lastentry
-        self.assertEqual(rx_srh.segleft, rx_srh.lastentry)
-
-        # the whole rx'ed pkt beyond SRH should be equal to tx'ed pkt
-        # except for the hop-limit field
-        #   -> update tx'ed hlim to the expected hlim
-        tx_ip.hlim = tx_ip.hlim - 1
-
-        self.assertEqual(rx_srh.payload, tx_ip)
-
-        self.logger.debug("packet verification: SUCCESS")
-
-    def compare_rx_tx_packet_T_Encaps_IPv4(self, tx_pkt, rx_pkt):
-        """ Compare input and output packet after passing T.Encaps for IPv4
-
-        :param tx_pkt: transmitted packet
-        :param rx_pkt: received packet
-        """
-        # T.Encaps for IPv4 updates the headers as follows:
-        # SR Policy seglist (S3, S2, S1)
-        # SR Policy source C
-        # IPv4:
-        # in: IPv4(A, B2)
-        # out: IPv6(C, S1)SRH(S3, S2, S1; SL=2)IPv4(A, B2)
-
-        # get first (outer) IPv6 header of rx'ed packet
-        rx_ip = rx_pkt.getlayer(IPv6)
-        rx_srh = None
-
-        tx_ip = tx_pkt.getlayer(IP)
-
-        # expected segment-list
-        seglist = self.sr_policy.segments
-        # reverse list to get order as in SRH
-        tx_seglist = seglist[::-1]
-
-        # get source address of SR Policy
-        sr_policy_source = self.sr_policy.source
-
-        # checks common to cases tx with and without SRH
-        # rx'ed packet should have SRH and IPv4 header
-        self.assertTrue(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
-        self.assertTrue(rx_ip.payload.haslayer(IP))
-        # get SRH
-        rx_srh = rx_pkt.getlayer(IPv6ExtHdrSegmentRouting)
-
-        # received ip.src should be equal to SR Policy source
-        self.assertEqual(rx_ip.src, sr_policy_source)
-        # received ip.dst should be equal to sidlist[lastentry]
-        self.assertEqual(rx_ip.dst, tx_seglist[-1])
-        # rx'ed seglist should be equal to seglist
-        self.assertEqual(rx_srh.addresses, tx_seglist)
-        # segleft should be equal to size seglist-1
-        self.assertEqual(rx_srh.segleft, len(tx_seglist)-1)
-        # segleft should be equal to lastentry
-        self.assertEqual(rx_srh.segleft, rx_srh.lastentry)
-
-        # the whole rx'ed pkt beyond SRH should be equal to tx'ed pkt
-        # except for the ttl field and ip checksum
-        #   -> adjust tx'ed ttl to expected ttl
-        tx_ip.ttl = tx_ip.ttl - 1
-        #   -> set tx'ed ip checksum to None and let scapy recompute
-        tx_ip.chksum = None
-        # read back the pkt (with str()) to force computing these fields
-        # probably other ways to accomplish this are possible
-        tx_ip = IP(scapy.compat.raw(tx_ip))
-
-        self.assertEqual(rx_srh.payload, tx_ip)
-
-        self.logger.debug("packet verification: SUCCESS")
-
-    def compare_rx_tx_packet_T_Encaps_L2(self, tx_pkt, rx_pkt):
-        """ Compare input and output packet after passing T.Encaps for L2
-
-        :param tx_pkt: transmitted packet
-        :param rx_pkt: received packet
-        """
-        # T.Encaps for L2 updates the headers as follows:
-        # SR Policy seglist (S3, S2, S1)
-        # SR Policy source C
-        # L2:
-        # in: L2
-        # out: IPv6(C, S1)SRH(S3, S2, S1; SL=2)L2
-
-        # get first (outer) IPv6 header of rx'ed packet
-        rx_ip = rx_pkt.getlayer(IPv6)
-        rx_srh = None
-
-        tx_ether = tx_pkt.getlayer(Ether)
-
-        # expected segment-list
-        seglist = self.sr_policy.segments
-        # reverse list to get order as in SRH
-        tx_seglist = seglist[::-1]
-
-        # get source address of SR Policy
-        sr_policy_source = self.sr_policy.source
-
-        # rx'ed packet should have SRH
-        self.assertTrue(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
-        # get SRH
-        rx_srh = rx_pkt.getlayer(IPv6ExtHdrSegmentRouting)
-
-        # received ip.src should be equal to SR Policy source
-        self.assertEqual(rx_ip.src, sr_policy_source)
-        # received ip.dst should be equal to sidlist[lastentry]
-        self.assertEqual(rx_ip.dst, tx_seglist[-1])
-        # rx'ed seglist should be equal to seglist
-        self.assertEqual(rx_srh.addresses, tx_seglist)
-        # segleft should be equal to size seglist-1
-        self.assertEqual(rx_srh.segleft, len(tx_seglist)-1)
-        # segleft should be equal to lastentry
-        self.assertEqual(rx_srh.segleft, rx_srh.lastentry)
-        # nh should be "No Next Header" (143)
-        self.assertEqual(rx_srh.nh, 143)
-
-        # the whole rx'ed pkt beyond SRH should be equal to tx'ed pkt
-        self.assertEqual(Ether(scapy.compat.raw(rx_srh.payload)), tx_ether)
-
-        self.logger.debug("packet verification: SUCCESS")
-
-    def compare_rx_tx_packet_T_Insert(self, tx_pkt, rx_pkt):
-        """ Compare input and output packet after passing T.Insert
-
-        :param tx_pkt: transmitted packet
-        :param rx_pkt: received packet
-        """
-        # T.Insert updates the headers as follows:
-        # IPv6:
-        # in: IPv6(A, B2)
-        # out: IPv6(A, S1)SRH(B2, S3, S2, S1; SL=3)
-        # IPv6 + SRH:
-        # in: IPv6(A, B2)SRH(B3, B2, B1; SL=1)
-        # out: IPv6(A, S1)SRH(B2, S3, S2, S1; SL=3)SRH(B3, B2, B1; SL=1)
-
-        # get first (outer) IPv6 header of rx'ed packet
-        rx_ip = rx_pkt.getlayer(IPv6)
-        rx_srh = None
-        rx_ip2 = None
-        rx_srh2 = None
-        rx_ip3 = None
-        rx_udp = rx_pkt[UDP]
-
-        tx_ip = tx_pkt.getlayer(IPv6)
-        tx_srh = None
-        tx_ip2 = None
-        # some packets have been tx'ed with an SRH, some without it
-        # get SRH if tx'ed packet has it
-        if tx_pkt.haslayer(IPv6ExtHdrSegmentRouting):
-            tx_srh = tx_pkt.getlayer(IPv6ExtHdrSegmentRouting)
-            tx_ip2 = tx_pkt.getlayer(IPv6, 2)
-        tx_udp = tx_pkt[UDP]
-
-        # expected segment-list (make copy of SR Policy segment list)
-        seglist = self.sr_policy.segments[:]
-        # expected seglist has initial dest addr as last segment
-        seglist.append(tx_ip.dst)
-        # reverse list to get order as in SRH
-        tx_seglist = seglist[::-1]
-
-        # get source address of SR Policy
-        sr_policy_source = self.sr_policy.source
-
-        # checks common to cases tx with and without SRH
-        # rx'ed packet should have SRH and only one IPv6 header
-        self.assertTrue(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
-        self.assertFalse(rx_ip.payload.haslayer(IPv6))
-        # get SRH
-        rx_srh = rx_pkt.getlayer(IPv6ExtHdrSegmentRouting)
-
-        # rx'ed ip.src should be equal to tx'ed ip.src
-        self.assertEqual(rx_ip.src, tx_ip.src)
-        # rx'ed ip.dst should be equal to sidlist[lastentry]
-        self.assertEqual(rx_ip.dst, tx_seglist[-1])
-
-        # rx'ed seglist should be equal to expected seglist
-        self.assertEqual(rx_srh.addresses, tx_seglist)
-        # segleft should be equal to size(expected seglist)-1
-        self.assertEqual(rx_srh.segleft, len(tx_seglist)-1)
-        # segleft should be equal to lastentry
-        self.assertEqual(rx_srh.segleft, rx_srh.lastentry)
-
-        if tx_srh:  # packet was tx'ed with SRH
-            # packet should have 2nd SRH
-            self.assertTrue(rx_srh.payload.haslayer(IPv6ExtHdrSegmentRouting))
-            # get 2nd SRH
-            rx_srh2 = rx_pkt.getlayer(IPv6ExtHdrSegmentRouting, 2)
-
-            # rx'ed srh2.addresses should be equal to tx'ed srh.addresses
-            self.assertEqual(rx_srh2.addresses, tx_srh.addresses)
-            # rx'ed srh2.segleft should be equal to tx'ed srh.segleft
-            self.assertEqual(rx_srh2.segleft, tx_srh.segleft)
-            # rx'ed srh2.lastentry should be equal to tx'ed srh.lastentry
-            self.assertEqual(rx_srh2.lastentry, tx_srh.lastentry)
-
-        else:  # packet was tx'ed without SRH
-            # rx packet should have no other SRH
-            self.assertFalse(rx_srh.payload.haslayer(IPv6ExtHdrSegmentRouting))
-
-        # UDP layer should be unchanged
-        self.assertEqual(rx_udp, tx_udp)
-
-        self.logger.debug("packet verification: SUCCESS")
-
-    def compare_rx_tx_packet_End(self, tx_pkt, rx_pkt):
-        """ Compare input and output packet after passing End (without PSP)
-
-        :param tx_pkt: transmitted packet
-        :param rx_pkt: received packet
-        """
-        # End (no PSP) updates the headers as follows:
-        # IPv6 + SRH:
-        # in: IPv6(A, S1)SRH(S3, S2, S1; SL=2)
-        # out: IPv6(A, S2)SRH(S3, S2, S1; SL=1)
-
-        # get first (outer) IPv6 header of rx'ed packet
-        rx_ip = rx_pkt.getlayer(IPv6)
-        rx_srh = None
-        rx_ip2 = None
-        rx_udp = rx_pkt[UDP]
-
-        tx_ip = tx_pkt.getlayer(IPv6)
-        # we know the packet has been tx'ed
-        # with an inner IPv6 header and an SRH
-        tx_ip2 = tx_pkt.getlayer(IPv6, 2)
-        tx_srh = tx_pkt.getlayer(IPv6ExtHdrSegmentRouting)
-        tx_udp = tx_pkt[UDP]
-
-        # common checks, regardless of tx segleft value
-        # rx'ed packet should have 2nd IPv6 header
-        self.assertTrue(rx_ip.payload.haslayer(IPv6))
-        # get second (inner) IPv6 header
-        rx_ip2 = rx_pkt.getlayer(IPv6, 2)
-
-        if tx_ip.segleft > 0:
-            # SRH should NOT have been popped:
-            #   End SID without PSP does not pop SRH if segleft>0
-            self.assertTrue(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
-            rx_srh = rx_pkt.getlayer(IPv6ExtHdrSegmentRouting)
-
-            # received ip.src should be equal to expected ip.src
-            self.assertEqual(rx_ip.src, tx_ip.src)
-            # sidlist should be unchanged
-            self.assertEqual(rx_srh.addresses, tx_srh.addresses)
-            # segleft should have been decremented
-            self.assertEqual(rx_srh.segleft, tx_srh.segleft-1)
-            # received ip.dst should be equal to sidlist[segleft]
-            self.assertEqual(rx_ip.dst, rx_srh.addresses[rx_srh.segleft])
-            # lastentry should be unchanged
-            self.assertEqual(rx_srh.lastentry, tx_srh.lastentry)
-            # inner IPv6 packet (ip2) should be unchanged
-            self.assertEqual(rx_ip2.src, tx_ip2.src)
-            self.assertEqual(rx_ip2.dst, tx_ip2.dst)
-        # else:  # tx_ip.segleft == 0
-            # TODO: Does this work with 2 SRHs in ingress packet?
-
-        # UDP layer should be unchanged
-        self.assertEqual(rx_udp, tx_udp)
-
-        self.logger.debug("packet verification: SUCCESS")
-
-    def compare_rx_tx_packet_End_PSP(self, tx_pkt, rx_pkt):
-        """ Compare input and output packet after passing End with PSP
-
-        :param tx_pkt: transmitted packet
-        :param rx_pkt: received packet
-        """
-        # End (PSP) updates the headers as follows:
-        # IPv6 + SRH (SL>1):
-        # in: IPv6(A, S1)SRH(S3, S2, S1; SL=2)
-        # out: IPv6(A, S2)SRH(S3, S2, S1; SL=1)
-        # IPv6 + SRH (SL=1):
-        # in: IPv6(A, S2)SRH(S3, S2, S1; SL=1)
-        # out: IPv6(A, S3)
-
-        # get first (outer) IPv6 header of rx'ed packet
-        rx_ip = rx_pkt.getlayer(IPv6)
-        rx_srh = None
-        rx_ip2 = None
-        rx_udp = rx_pkt[UDP]
-
-        tx_ip = tx_pkt.getlayer(IPv6)
-        # we know the packet has been tx'ed
-        # with an inner IPv6 header and an SRH
-        tx_ip2 = tx_pkt.getlayer(IPv6, 2)
-        tx_srh = tx_pkt.getlayer(IPv6ExtHdrSegmentRouting)
-        tx_udp = tx_pkt[UDP]
-
-        # common checks, regardless of tx segleft value
-        self.assertTrue(rx_ip.payload.haslayer(IPv6))
-        rx_ip2 = rx_pkt.getlayer(IPv6, 2)
-        # inner IPv6 packet (ip2) should be unchanged
-        self.assertEqual(rx_ip2.src, tx_ip2.src)
-        self.assertEqual(rx_ip2.dst, tx_ip2.dst)
-
-        if tx_ip.segleft > 1:
-            # SRH should NOT have been popped:
-            #   End SID with PSP does not pop SRH if segleft>1
-            # rx'ed packet should have SRH
-            self.assertTrue(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
-            rx_srh = rx_pkt.getlayer(IPv6ExtHdrSegmentRouting)
-
-            # received ip.src should be equal to expected ip.src
-            self.assertEqual(rx_ip.src, tx_ip.src)
-            # sidlist should be unchanged
-            self.assertEqual(rx_srh.addresses, tx_srh.addresses)
-            # segleft should have been decremented
-            self.assertEqual(rx_srh.segleft, tx_srh.segleft-1)
-            # received ip.dst should be equal to sidlist[segleft]
-            self.assertEqual(rx_ip.dst, rx_srh.addresses[rx_srh.segleft])
-            # lastentry should be unchanged
-            self.assertEqual(rx_srh.lastentry, tx_srh.lastentry)
-
-        else:  # tx_ip.segleft <= 1
-            # SRH should have been popped:
-            #   End SID with PSP and segleft=1 pops SRH
-            # the two IPv6 headers are still present
-            # outer IPv6 header has DA == last segment of popped SRH
-            # SRH should not be present
-            self.assertFalse(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
-            # outer IPv6 header ip.src should be equal to tx'ed ip.src
-            self.assertEqual(rx_ip.src, tx_ip.src)
-            # outer IPv6 header ip.dst should be = to tx'ed sidlist[segleft-1]
-            self.assertEqual(rx_ip.dst, tx_srh.addresses[tx_srh.segleft-1])
-
-        # UDP layer should be unchanged
-        self.assertEqual(rx_udp, tx_udp)
-
-        self.logger.debug("packet verification: SUCCESS")
-
-    def compare_rx_tx_packet_End_DX6(self, tx_pkt, rx_pkt):
-        """ Compare input and output packet after passing End.DX6
-
-        :param tx_pkt: transmitted packet
-        :param rx_pkt: received packet
-        """
-        # End.DX6 updates the headers as follows:
-        # IPv6 + SRH (SL=0):
-        # in: IPv6(A, S3)SRH(S3, S2, S1; SL=0)IPv6(B, D)
-        # out: IPv6(B, D)
-        # IPv6:
-        # in: IPv6(A, S3)IPv6(B, D)
-        # out: IPv6(B, D)
-
-        # get first (outer) IPv6 header of rx'ed packet
-        rx_ip = rx_pkt.getlayer(IPv6)
-
-        tx_ip = tx_pkt.getlayer(IPv6)
-        tx_ip2 = tx_pkt.getlayer(IPv6, 2)
-
-        # verify if rx'ed packet has no SRH
-        self.assertFalse(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
-
-        # the whole rx_ip pkt should be equal to tx_ip2
-        # except for the hlim field
-        #   -> adjust tx'ed hlim to expected hlim
-        tx_ip2.hlim = tx_ip2.hlim - 1
-
-        self.assertEqual(rx_ip, tx_ip2)
-
-        self.logger.debug("packet verification: SUCCESS")
-
-    def compare_rx_tx_packet_End_DX4(self, tx_pkt, rx_pkt):
-        """ Compare input and output packet after passing End.DX4
-
-        :param tx_pkt: transmitted packet
-        :param rx_pkt: received packet
-        """
-        # End.DX4 updates the headers as follows:
-        # IPv6 + SRH (SL=0):
-        # in: IPv6(A, S3)SRH(S3, S2, S1; SL=0)IPv4(B, D)
-        # out: IPv4(B, D)
-        # IPv6:
-        # in: IPv6(A, S3)IPv4(B, D)
-        # out: IPv4(B, D)
-
-        # get IPv4 header of rx'ed packet
-        rx_ip = rx_pkt.getlayer(IP)
-
-        tx_ip = tx_pkt.getlayer(IPv6)
-        tx_ip2 = tx_pkt.getlayer(IP)
-
-        # verify if rx'ed packet has no SRH
-        self.assertFalse(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
-
-        # the whole rx_ip pkt should be equal to tx_ip2
-        # except for the ttl field and ip checksum
-        #   -> adjust tx'ed ttl to expected ttl
-        tx_ip2.ttl = tx_ip2.ttl - 1
-        #   -> set tx'ed ip checksum to None and let scapy recompute
-        tx_ip2.chksum = None
-        # read back the pkt (with str()) to force computing these fields
-        # probably other ways to accomplish this are possible
-        tx_ip2 = IP(scapy.compat.raw(tx_ip2))
-
-        self.assertEqual(rx_ip, tx_ip2)
-
-        self.logger.debug("packet verification: SUCCESS")
-
-    def compare_rx_tx_packet_End_DX2(self, tx_pkt, rx_pkt):
-        """ Compare input and output packet after passing End.DX2
-
-        :param tx_pkt: transmitted packet
-        :param rx_pkt: received packet
-        """
-        # End.DX2 updates the headers as follows:
-        # IPv6 + SRH (SL=0):
-        # in: IPv6(A, S3)SRH(S3, S2, S1; SL=0)L2
-        # out: L2
-        # IPv6:
-        # in: IPv6(A, S3)L2
-        # out: L2
-
-        # get IPv4 header of rx'ed packet
-        rx_eth = rx_pkt.getlayer(Ether)
-
-        tx_ip = tx_pkt.getlayer(IPv6)
-        # we can't just get the 2nd Ether layer
-        # get the Raw content and dissect it as Ether
-        tx_eth1 = Ether(scapy.compat.raw(tx_pkt[Raw]))
-
-        # verify if rx'ed packet has no SRH
-        self.assertFalse(rx_pkt.haslayer(IPv6ExtHdrSegmentRouting))
-
-        # the whole rx_eth pkt should be equal to tx_eth1
-        self.assertEqual(rx_eth, tx_eth1)
-
-        self.logger.debug("packet verification: SUCCESS")
-
-    def create_stream(self, src_if, dst_if, packet_header, packet_sizes,
-                      count):
-        """Create SRv6 input packet stream for defined interface.
-
-        :param VppInterface src_if: Interface to create packet stream for
-        :param VppInterface dst_if: destination interface of packet stream
-        :param packet_header: Layer3 scapy packet headers,
-                L2 is added when not provided,
-                Raw(payload) with packet_info is added
-        :param list packet_sizes: packet stream pckt sizes,sequentially applied
-               to packets in stream have
-        :param int count: number of packets in packet stream
-        :return: list of packets
-        """
-        self.logger.info("Creating packets")
-        pkts = []
-        for i in range(0, count-1):
-            payload_info = self.create_packet_info(src_if, dst_if)
-            self.logger.debug(
-                "Creating packet with index %d" % (payload_info.index))
-            payload = self.info_to_payload(payload_info)
-            # add L2 header if not yet provided in packet_header
-            if packet_header.getlayer(0).name == 'Ethernet':
-                p = (packet_header /
-                     Raw(payload))
-            else:
-                p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
-                     packet_header /
-                     Raw(payload))
-            size = packet_sizes[i % len(packet_sizes)]
-            self.logger.debug("Packet size %d" % (size))
-            self.extend_packet(p, size)
-            # we need to store the packet with the automatic fields computed
-            # read back the dumped packet (with str())
-            # to force computing these fields
-            # probably other ways are possible
-            p = Ether(scapy.compat.raw(p))
-            payload_info.data = p.copy()
-            self.logger.debug(ppp("Created packet:", p))
-            pkts.append(p)
-        self.logger.info("Done creating packets")
-        return pkts
-
-    def send_and_verify_pkts(self, input, pkts, output, compare_func,
-                             expected_count=None):
-        """Send packets and verify received packets using compare_func
-
-        :param input: ingress interface of DUT
-        :param pkts: list of packets to transmit
-        :param output: egress interface of DUT
-        :param compare_func: function to compare in and out packets
-        :param expected_count: expected number of captured packets (if
-               different than len(pkts))
-        """
-        # add traffic stream to input interface
-        input.add_stream(pkts)
-
-        # enable capture on all interfaces
-        self.pg_enable_capture(self.pg_interfaces)
-
-        # start traffic
-        self.logger.info("Starting traffic")
-        self.pg_start()
-
-        # get output capture
-        self.logger.info("Getting packet capture")
-        capture = output.get_capture(expected_count=expected_count)
-
-        # assert nothing was captured on input interface
-        input.assert_nothing_captured()
-
-        # verify captured packets
-        self.verify_captured_pkts(output, capture, compare_func)
-
-    def create_packet_header_IPv6(self, dst):
-        """Create packet header: IPv6 header, UDP header
-
-        :param dst: IPv6 destination address
-
-        IPv6 source address is 1234::1
-        UDP source port and destination port are 1234
-        """
-
-        p = (IPv6(src='1234::1', dst=dst) /
-             UDP(sport=1234, dport=1234))
-        return p
-
-    def create_packet_header_IPv6_SRH(self, sidlist, segleft):
-        """Create packet header: IPv6 header with SRH, UDP header
-
-        :param list sidlist: segment list
-        :param int segleft: segments-left field value
-
-        IPv6 destination address is set to sidlist[segleft]
-        IPv6 source addresses are 1234::1 and 4321::1
-        UDP source port and destination port are 1234
-        """
-
-        p = (IPv6(src='1234::1', dst=sidlist[segleft]) /
-             IPv6ExtHdrSegmentRouting(addresses=sidlist) /
-             UDP(sport=1234, dport=1234))
-        return p
-
-    def create_packet_header_IPv6_SRH_IPv6(self, dst, sidlist, segleft):
-        """Create packet header: IPv6 encapsulated in SRv6:
-        IPv6 header with SRH, IPv6 header, UDP header
-
-        :param ipv6address dst: inner IPv6 destination address
-        :param list sidlist: segment list of outer IPv6 SRH
-        :param int segleft: segments-left field of outer IPv6 SRH
-
-        Outer IPv6 destination address is set to sidlist[segleft]
-        IPv6 source addresses are 1234::1 and 4321::1
-        UDP source port and destination port are 1234
-        """
-
-        p = (IPv6(src='1234::1', dst=sidlist[segleft]) /
-             IPv6ExtHdrSegmentRouting(addresses=sidlist,
-                                      segleft=segleft, nh=41) /
-             IPv6(src='4321::1', dst=dst) /
-             UDP(sport=1234, dport=1234))
-        return p
-
-    def create_packet_header_IPv6_IPv6(self, dst_inner, dst_outer):
-        """Create packet header: IPv6 encapsulated in IPv6:
-        IPv6 header, IPv6 header, UDP header
-
-        :param ipv6address dst_inner: inner IPv6 destination address
-        :param ipv6address dst_outer: outer IPv6 destination address
-
-        IPv6 source addresses are 1234::1 and 4321::1
-        UDP source port and destination port are 1234
-        """
-
-        p = (IPv6(src='1234::1', dst=dst_outer) /
-             IPv6(src='4321::1', dst=dst_inner) /
-             UDP(sport=1234, dport=1234))
-        return p
-
-    def create_packet_header_IPv6_SRH_SRH_IPv6(self, dst, sidlist1, segleft1,
-                                               sidlist2, segleft2):
-        """Create packet header: IPv6 encapsulated in SRv6 with 2 SRH:
-        IPv6 header with SRH, 2nd SRH, IPv6 header, UDP header
-
-        :param ipv6address dst: inner IPv6 destination address
-        :param list sidlist1: segment list of outer IPv6 SRH
-        :param int segleft1: segments-left field of outer IPv6 SRH
-        :param list sidlist2: segment list of inner IPv6 SRH
-        :param int segleft2: segments-left field of inner IPv6 SRH
-
-        Outer IPv6 destination address is set to sidlist[segleft]
-        IPv6 source addresses are 1234::1 and 4321::1
-        UDP source port and destination port are 1234
-        """
-
-        p = (IPv6(src='1234::1', dst=sidlist1[segleft1]) /
-             IPv6ExtHdrSegmentRouting(addresses=sidlist1,
-                                      segleft=segleft1, nh=43) /
-             IPv6ExtHdrSegmentRouting(addresses=sidlist2,
-                                      segleft=segleft2, nh=41) /
-             IPv6(src='4321::1', dst=dst) /
-             UDP(sport=1234, dport=1234))
-        return p
-
-    def create_packet_header_IPv4(self, dst):
-        """Create packet header: IPv4 header, UDP header
-
-        :param dst: IPv4 destination address
-
-        IPv4 source address is 123.1.1.1
-        UDP source port and destination port are 1234
-        """
-
-        p = (IP(src='123.1.1.1', dst=dst) /
-             UDP(sport=1234, dport=1234))
-        return p
-
-    def create_packet_header_IPv6_IPv4(self, dst_inner, dst_outer):
-        """Create packet header: IPv4 encapsulated in IPv6:
-        IPv6 header, IPv4 header, UDP header
-
-        :param ipv4address dst_inner: inner IPv4 destination address
-        :param ipv6address dst_outer: outer IPv6 destination address
-
-        IPv6 source address is 1234::1
-        IPv4 source address is 123.1.1.1
-        UDP source port and destination port are 1234
-        """
-
-        p = (IPv6(src='1234::1', dst=dst_outer) /
-             IP(src='123.1.1.1', dst=dst_inner) /
-             UDP(sport=1234, dport=1234))
-        return p
-
-    def create_packet_header_IPv6_SRH_IPv4(self, dst, sidlist, segleft):
-        """Create packet header: IPv4 encapsulated in SRv6:
-        IPv6 header with SRH, IPv4 header, UDP header
-
-        :param ipv4address dst: inner IPv4 destination address
-        :param list sidlist: segment list of outer IPv6 SRH
-        :param int segleft: segments-left field of outer IPv6 SRH
-
-        Outer IPv6 destination address is set to sidlist[segleft]
-        IPv6 source address is 1234::1
-        IPv4 source address is 123.1.1.1
-        UDP source port and destination port are 1234
-        """
-
-        p = (IPv6(src='1234::1', dst=sidlist[segleft]) /
-             IPv6ExtHdrSegmentRouting(addresses=sidlist,
-                                      segleft=segleft, nh=4) /
-             IP(src='123.1.1.1', dst=dst) /
-             UDP(sport=1234, dport=1234))
-        return p
-
-    def create_packet_header_L2(self, vlan=0):
-        """Create packet header: L2 header
-
-        :param vlan: if vlan!=0 then add 802.1q header
-        """
-        # Note: the dst addr ('00:55:44:33:22:11') is used in
-        # the compare function compare_rx_tx_packet_T_Encaps_L2
-        # to detect presence of L2 in SRH payload
-        p = Ether(src='00:11:22:33:44:55', dst='00:55:44:33:22:11')
-        etype = 0x8137  # IPX
-        if vlan:
-            # add 802.1q layer
-            p /= Dot1Q(vlan=vlan, type=etype)
-        else:
-            p.type = etype
-        return p
-
-    def create_packet_header_IPv6_SRH_L2(self, sidlist, segleft, vlan=0):
-        """Create packet header: L2 encapsulated in SRv6:
-        IPv6 header with SRH, L2
-
-        :param list sidlist: segment list of outer IPv6 SRH
-        :param int segleft: segments-left field of outer IPv6 SRH
-        :param vlan: L2 vlan; if vlan!=0 then add 802.1q header
-
-        Outer IPv6 destination address is set to sidlist[segleft]
-        IPv6 source address is 1234::1
-        """
-        eth = Ether(src='00:11:22:33:44:55', dst='00:55:44:33:22:11')
-        etype = 0x8137  # IPX
-        if vlan:
-            # add 802.1q layer
-            eth /= Dot1Q(vlan=vlan, type=etype)
-        else:
-            eth.type = etype
-
-        p = (IPv6(src='1234::1', dst=sidlist[segleft]) /
-             IPv6ExtHdrSegmentRouting(addresses=sidlist,
-                                      segleft=segleft, nh=143) /
-             eth)
-        return p
-
-    def create_packet_header_IPv6_L2(self, dst_outer, vlan=0):
-        """Create packet header: L2 encapsulated in IPv6:
-        IPv6 header, L2
-
-        :param ipv6address dst_outer: outer IPv6 destination address
-        :param vlan: L2 vlan; if vlan!=0 then add 802.1q header
-        """
-        eth = Ether(src='00:11:22:33:44:55', dst='00:55:44:33:22:11')
-        etype = 0x8137  # IPX
-        if vlan:
-            # add 802.1q layer
-            eth /= Dot1Q(vlan=vlan, type=etype)
-        else:
-            eth.type = etype
-
-        p = (IPv6(src='1234::1', dst=dst_outer, nh=143) / eth)
-        return p
-
-    def get_payload_info(self, packet):
-        """ Extract the payload_info from the packet
-        """
-        # in most cases, payload_info is in packet[Raw]
-        # but packet[Raw] gives the complete payload
-        # (incl L2 header) for the T.Encaps L2 case
-        try:
-            payload_info = self.payload_to_info(packet[Raw])
-
-        except:
-            # remote L2 header from packet[Raw]:
-            # take packet[Raw], convert it to an Ether layer
-            # and then extract Raw from it
-            payload_info = self.payload_to_info(
-                Ether(scapy.compat.r(packet[Raw]))[Raw])
-
-        return payload_info
-
-    def verify_captured_pkts(self, dst_if, capture, compare_func):
-        """
-        Verify captured packet stream for specified interface.
-        Compare ingress with egress packets using the specified compare fn
-
-        :param dst_if: egress interface of DUT
-        :param capture: captured packets
-        :param compare_func: function to compare in and out packet
-        """
-        self.logger.info("Verifying capture on interface %s using function %s"
-                         % (dst_if.name, compare_func.__name__))
-
-        last_info = dict()
-        for i in self.pg_interfaces:
-            last_info[i.sw_if_index] = None
-        dst_sw_if_index = dst_if.sw_if_index
-
-        for packet in capture:
-            try:
-                # extract payload_info from packet's payload
-                payload_info = self.get_payload_info(packet)
-                packet_index = payload_info.index
-
-                self.logger.debug("Verifying packet with index %d"
-                                  % (packet_index))
-                # packet should have arrived on the expected interface
-                self.assertEqual(payload_info.dst, dst_sw_if_index)
-                self.logger.debug(
-                    "Got packet on interface %s: src=%u (idx=%u)" %
-                    (dst_if.name, payload_info.src, packet_index))
-
-                # search for payload_info with same src and dst if_index
-                # this will give us the transmitted packet
-                next_info = self.get_next_packet_info_for_interface2(
-                    payload_info.src, dst_sw_if_index,
-                    last_info[payload_info.src])
-                last_info[payload_info.src] = next_info
-                # next_info should not be None
-                self.assertTrue(next_info is not None)
-                # index of tx and rx packets should be equal
-                self.assertEqual(packet_index, next_info.index)
-                # data field of next_info contains the tx packet
-                txed_packet = next_info.data
-
-                self.logger.debug(ppp("Transmitted packet:",
-                                      txed_packet))  # ppp=Pretty Print Packet
-
-                self.logger.debug(ppp("Received packet:", packet))
-
-                # compare rcvd packet with expected packet using compare_func
-                compare_func(txed_packet, packet)
-
-            except:
-                self.logger.error(ppp("Unexpected or invalid packet:", packet))
-                raise
-
-        # FIXME: there is no need to check manually that all the packets
-        #        arrived (already done so by get_capture); checking here
-        #        prevents testing packets that are expected to be dropped, so
-        #        commenting this out for now
-
-        # have all expected packets arrived?
-        # for i in self.pg_interfaces:
-        #    remaining_packet = self.get_next_packet_info_for_interface2(
-        #        i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index])
-        #    self.assertTrue(remaining_packet is None,
-        #                    "Interface %s: Packet expected from interface %s "
-        #                    "didn't arrive" % (dst_if.name, i.name))
-
-
-if __name__ == '__main__':
-    unittest.main(testRunner=VppTestRunner)