#!/usr/bin/env python3 """GSO functional tests""" # # Add tests for: # - GSO # - Verify that sending Jumbo frame without GSO enabled correctly # - Verify that sending Jumbo frame with GSO enabled correctly # - Verify that sending Jumbo frame with GSO enabled only on ingress interface # import unittest from scapy.packet import Raw from scapy.layers.inet6 import IPv6, Ether, IP, UDP, ICMPv6PacketTooBig from scapy.layers.inet6 import ipv6nh, IPerror6 from scapy.layers.inet import TCP, ICMP from scapy.layers.vxlan import VXLAN from scapy.data import ETH_P_IP, ETH_P_IPV6, ETH_P_ARP from framework import VppTestCase, VppTestRunner from vpp_object import VppObject from vpp_interface import VppInterface from vpp_ip import DpoProto from vpp_ip_route import VppIpRoute, VppRoutePath, FibPathProto from vpp_ipip_tun_interface import VppIpIpTunInterface from vpp_vxlan_tunnel import VppVxlanTunnel from socket import AF_INET, AF_INET6, inet_pton from util import reassemble4 """ Test_gso is a subclass of VPPTestCase classes. GSO tests. """ class TestGSO(VppTestCase): """ GSO Test Case """ def __init__(self, *args): VppTestCase.__init__(self, *args) @classmethod def setUpClass(self): super(TestGSO, self).setUpClass() res = self.create_pg_interfaces(range(2)) res_gso = self.create_pg_interfaces(range(2, 4), 1, 1460) self.create_pg_interfaces(range(4, 5), 1, 8940) self.pg_interfaces.append(res[0]) self.pg_interfaces.append(res[1]) self.pg_interfaces.append(res_gso[0]) self.pg_interfaces.append(res_gso[1]) @classmethod def tearDownClass(self): super(TestGSO, self).tearDownClass() def setUp(self): super(TestGSO, self).setUp() for i in self.pg_interfaces: i.admin_up() i.config_ip4() i.config_ip6() i.disable_ipv6_ra() i.resolve_arp() i.resolve_ndp() self.single_tunnel_bd = 10 self.vxlan = VppVxlanTunnel(self, src=self.pg0.local_ip4, dst=self.pg0.remote_ip4, vni=self.single_tunnel_bd) self.vxlan2 = VppVxlanTunnel(self, src=self.pg0.local_ip6, dst=self.pg0.remote_ip6, vni=self.single_tunnel_bd) self.ipip4 = VppIpIpTunInterface(self, self.pg0, self.pg0.local_ip4, self.pg0.remote_ip4) self.ipip6 = VppIpIpTunInterface(self, self.pg0, self.pg0.local_ip6, self.pg0.remote_ip6) def tearDown(self): super(TestGSO, self).tearDown() if not self.vpp_dead: for i in self.pg_interfaces: i.unconfig_ip4() i.unconfig_ip6() i.admin_down() def test_gso(self): """ GSO test """ # # Send jumbo frame with gso disabled and DF bit is set # p4 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4, flags='DF') / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg0, [p4], self.pg0) for rx in rxs: self.assertEqual(rx[Ether].src, self.pg0.local_mac) self.assertEqual(rx[Ether].dst, self.pg0.remote_mac) self.assertEqual(rx[IP].src, self.pg0.local_ip4) self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) self.assertEqual(rx[ICMP].type, 3) # "dest-unreach" self.assertEqual(rx[ICMP].code, 4) # "fragmentation-needed" # # Send jumbo frame with gso enabled and DF bit is set # input and output interfaces support GSO # p41 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) / IP(src=self.pg2.remote_ip4, dst=self.pg3.remote_ip4, flags='DF') / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p41], self.pg3) for rx in rxs: self.assertEqual(rx[Ether].src, self.pg3.local_mac) self.assertEqual(rx[Ether].dst, self.pg3.remote_mac) self.assertEqual(rx[IP].src, self.pg2.remote_ip4) self.assertEqual(rx[IP].dst, self.pg3.remote_ip4) self.assertEqual(rx[IP].len, 65240) # 65200 + 20 (IP) + 20 (TCP) self.assertEqual(rx[TCP].sport, 1234) self.assertEqual(rx[TCP].dport, 1234) # # ipv6 # p61 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) / IPv6(src=self.pg2.remote_ip6, dst=self.pg3.remote_ip6) / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p61], self.pg3) for rx in rxs: self.assertEqual(rx[Ether].src, self.pg3.local_mac) self.assertEqual(rx[Ether].dst, self.pg3.remote_mac) self.assertEqual(rx[IPv6].src, self.pg2.remote_ip6) self.assertEqual(rx[IPv6].dst, self.pg3.remote_ip6) self.assertEqual(rx[IPv6].plen, 65220) # 65200 + 20 (TCP) self.assertEqual(rx[TCP].sport, 1234) self.assertEqual(rx[TCP].dport, 1234) # # Send jumbo frame with gso enabled only on input interface # and DF bit is set. GSO packet will be chunked into gso_size # data payload # self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index) p42 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) / IP(src=self.pg2.remote_ip4, dst=self.pg0.remote_ip4, flags='DF') / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p42], self.pg0, 45) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg0.local_mac) self.assertEqual(rx[Ether].dst, self.pg0.remote_mac) self.assertEqual(rx[IP].src, self.pg2.remote_ip4) self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) self.assertEqual(rx[TCP].sport, 1234) self.assertEqual(rx[TCP].dport, 1234) size = rxs[44][TCP].seq + rxs[44][IP].len - 20 - 20 self.assertEqual(size, 65200) # # ipv6 # p62 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) / IPv6(src=self.pg2.remote_ip6, dst=self.pg0.remote_ip6) / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p62], self.pg0, 45) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg0.local_mac) self.assertEqual(rx[Ether].dst, self.pg0.remote_mac) self.assertEqual(rx[IPv6].src, self.pg2.remote_ip6) self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6) self.assertEqual(rx[TCP].sport, 1234) self.assertEqual(rx[TCP].dport, 1234) size = rxs[44][TCP].seq + rxs[44][IPv6].plen - 20 self.assertEqual(size, 65200) # # Send jumbo frame with gso enabled only on input interface # and DF bit is unset. GSO packet will be fragmented. # self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [576, 0, 0, 0]) self.vapi.feature_gso_enable_disable(self.pg1.sw_if_index) p43 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) / IP(src=self.pg2.remote_ip4, dst=self.pg1.remote_ip4) / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p43], self.pg1, 119) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg1.local_mac) self.assertEqual(rx[Ether].dst, self.pg1.remote_mac) self.assertEqual(rx[IP].src, self.pg2.remote_ip4) self.assertEqual(rx[IP].dst, self.pg1.remote_ip4) size += rx[IP].len - 20 size -= 20 # TCP header self.assertEqual(size, 65200) # # IPv6 # Send jumbo frame with gso enabled only on input interface. # ICMPv6 Packet Too Big will be sent back to sender. # self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1280, 0, 0, 0]) p63 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) / IPv6(src=self.pg2.remote_ip6, dst=self.pg1.remote_ip6) / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p63], self.pg2, 1) for rx in rxs: self.assertEqual(rx[Ether].src, self.pg2.local_mac) self.assertEqual(rx[Ether].dst, self.pg2.remote_mac) self.assertEqual(rx[IPv6].src, self.pg2.local_ip6) self.assertEqual(rx[IPv6].dst, self.pg2.remote_ip6) self.assertEqual(rx[IPv6].plen, 1240) # MTU - IPv6 header self.assertEqual(ipv6nh[rx[IPv6].nh], "ICMPv6") self.assertEqual(rx[ICMPv6PacketTooBig].mtu, 1280) self.assertEqual(rx[IPerror6].src, self.pg2.remote_ip6) self.assertEqual(rx[IPerror6].dst, self.pg1.remote_ip6) self.assertEqual(rx[IPerror6].plen - 20, 65200) # # Send jumbo frame with gso enabled only on input interface with 9K MTU # and DF bit is unset. GSO packet will be fragmented. MSS is 8960. GSO # size will be min(MSS, 2048 - 14 - 20) vlib_buffer_t size # self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [9000, 0, 0, 0]) self.vapi.sw_interface_set_mtu(self.pg4.sw_if_index, [9000, 0, 0, 0]) p44 = (Ether(src=self.pg4.remote_mac, dst=self.pg4.local_mac) / IP(src=self.pg4.remote_ip4, dst=self.pg1.remote_ip4) / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) self.pg1.enable_capture() rxs = self.send_and_expect(self.pg4, [p44], self.pg1, 33) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg1.local_mac) self.assertEqual(rx[Ether].dst, self.pg1.remote_mac) self.assertEqual(rx[IP].src, self.pg4.remote_ip4) self.assertEqual(rx[IP].dst, self.pg1.remote_ip4) size = rxs[32][TCP].seq + rxs[32][IP].len - 20 - 20 self.assertEqual(size, 65200) # # IPv6 # p64 = (Ether(src=self.pg4.remote_mac, dst=self.pg4.local_mac) / IPv6(src=self.pg4.remote_ip6, dst=self.pg1.remote_ip6) / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) self.pg1.enable_capture() rxs = self.send_and_expect(self.pg4, [p64], self.pg1, 34) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg1.local_mac) self.assertEqual(rx[Ether].dst, self.pg1.remote_mac) self.assertEqual(rx[IPv6].src, self.pg4.remote_ip6) self.assertEqual(rx[IPv6].dst, self.pg1.remote_ip6) size = rxs[33][TCP].seq + rxs[33][IPv6].plen - 20 self.assertEqual(size, 65200) def test_gso_vxlan(self): """ GSO VXLAN test """ self.logger.info(self.vapi.cli("sh int addr")) # # Send jumbo frame with gso enabled only on input interface and # create VXLAN VTEP on VPP pg0, and put vxlan_tunnel0 and pg2 # into BD. # # # enable ipv4/vxlan # self.vxlan.add_vpp_config() self.vapi.sw_interface_set_l2_bridge( rx_sw_if_index=self.vxlan.sw_if_index, bd_id=self.single_tunnel_bd) self.vapi.sw_interface_set_l2_bridge( rx_sw_if_index=self.pg2.sw_if_index, bd_id=self.single_tunnel_bd) self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index) # # IPv4/IPv4 - VXLAN # p45 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") / IP(src=self.pg2.remote_ip4, dst="172.16.3.3", flags='DF') / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p45], self.pg0, 45) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg0.local_mac) self.assertEqual(rx[Ether].dst, self.pg0.remote_mac) self.assertEqual(rx[IP].src, self.pg0.local_ip4) self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) self.assertEqual(rx[VXLAN].vni, 10) inner = rx[VXLAN].payload self.assertEqual(inner[Ether].src, self.pg2.remote_mac) self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79") self.assertEqual(inner[IP].src, self.pg2.remote_ip4) self.assertEqual(inner[IP].dst, "172.16.3.3") size += inner[IP].len - 20 - 20 self.assertEqual(size, 65200) # # IPv4/IPv6 - VXLAN # p65 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") / IPv6(src=self.pg2.remote_ip6, dst="fd01:3::3") / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p65], self.pg0, 45) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg0.local_mac) self.assertEqual(rx[Ether].dst, self.pg0.remote_mac) self.assertEqual(rx[IP].src, self.pg0.local_ip4) self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) self.assertEqual(rx[VXLAN].vni, 10) inner = rx[VXLAN].payload self.assertEqual(inner[Ether].src, self.pg2.remote_mac) self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79") self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6) self.assertEqual(inner[IPv6].dst, "fd01:3::3") size += inner[IPv6].plen - 20 self.assertEqual(size, 65200) # # disable ipv4/vxlan # self.vxlan.remove_vpp_config() # # enable ipv6/vxlan # self.vxlan2.add_vpp_config() self.vapi.sw_interface_set_l2_bridge( rx_sw_if_index=self.vxlan2.sw_if_index, bd_id=self.single_tunnel_bd) # # IPv6/IPv4 - VXLAN # p46 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") / IP(src=self.pg2.remote_ip4, dst="172.16.3.3", flags='DF') / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p46], self.pg0, 45) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg0.local_mac) self.assertEqual(rx[Ether].dst, self.pg0.remote_mac) self.assertEqual(rx[IPv6].src, self.pg0.local_ip6) self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6) self.assertEqual(rx[VXLAN].vni, 10) inner = rx[VXLAN].payload self.assertEqual(inner[Ether].src, self.pg2.remote_mac) self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79") self.assertEqual(inner[IP].src, self.pg2.remote_ip4) self.assertEqual(inner[IP].dst, "172.16.3.3") size += inner[IP].len - 20 - 20 self.assertEqual(size, 65200) # # IPv6/IPv6 - VXLAN # p66 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") / IPv6(src=self.pg2.remote_ip6, dst="fd01:3::3") / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p66], self.pg0, 45) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg0.local_mac) self.assertEqual(rx[Ether].dst, self.pg0.remote_mac) self.assertEqual(rx[IPv6].src, self.pg0.local_ip6) self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6) self.assertEqual(rx[VXLAN].vni, 10) inner = rx[VXLAN].payload self.assertEqual(inner[Ether].src, self.pg2.remote_mac) self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79") self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6) self.assertEqual(inner[IPv6].dst, "fd01:3::3") size += inner[IPv6].plen - 20 self.assertEqual(size, 65200) # # disable ipv4/vxlan # self.vxlan2.remove_vpp_config() def test_gso_ipip(self): """ GSO IPIP test """ self.logger.info(self.vapi.cli("sh int addr")) # # Send jumbo frame with gso enabled only on input interface and # create IPIP tunnel on VPP pg0. # self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index) # # enable ipip4 # self.ipip4.add_vpp_config() # Set interface up and enable IP on it self.ipip4.admin_up() self.ipip4.set_unnumbered(self.pg0.sw_if_index) # Add IPv4 routes via tunnel interface self.ip4_via_ip4_tunnel = VppIpRoute( self, "172.16.10.0", 24, [VppRoutePath("0.0.0.0", self.ipip4.sw_if_index, proto=FibPathProto.FIB_PATH_NH_PROTO_IP4)]) self.ip4_via_ip4_tunnel.add_vpp_config() # # IPv4/IPv4 - IPIP # p47 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") / IP(src=self.pg2.remote_ip4, dst="172.16.10.3", flags='DF') / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p47], self.pg0, 45) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg0.local_mac) self.assertEqual(rx[Ether].dst, self.pg0.remote_mac) self.assertEqual(rx[IP].src, self.pg0.local_ip4) self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) self.assertEqual(rx[IP].proto, 4) # ipencap inner = rx[IP].payload self.assertEqual(inner[IP].src, self.pg2.remote_ip4) self.assertEqual(inner[IP].dst, "172.16.10.3") size += inner[IP].len - 20 - 20 self.assertEqual(size, 65200) self.ip6_via_ip4_tunnel = VppIpRoute( self, "fd01:10::", 64, [VppRoutePath("::", self.ipip4.sw_if_index, proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)]) self.ip6_via_ip4_tunnel.add_vpp_config() # # IPv4/IPv6 - IPIP # p67 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") / IPv6(src=self.pg2.remote_ip6, dst="fd01:10::3") / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p67], self.pg0, 45) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg0.local_mac) self.assertEqual(rx[Ether].dst, self.pg0.remote_mac) self.assertEqual(rx[IP].src, self.pg0.local_ip4) self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) self.assertEqual(rx[IP].proto, 41) # ipv6 inner = rx[IP].payload self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6) self.assertEqual(inner[IPv6].dst, "fd01:10::3") size += inner[IPv6].plen - 20 self.assertEqual(size, 65200) # # Send jumbo frame with gso enabled only on input interface and # create IPIP tunnel on VPP pg0. Enable gso feature node on ipip # tunnel - IPSec use case # self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index, 0) self.vapi.feature_gso_enable_disable(self.ipip4.sw_if_index) rxs = self.send_and_expect(self.pg2, [p47], self.pg0, 45) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg0.local_mac) self.assertEqual(rx[Ether].dst, self.pg0.remote_mac) self.assertEqual(rx[IP].src, self.pg0.local_ip4) self.assertEqual(rx[IP].dst, self.pg0.remote_ip4) self.assertEqual(rx[IP].proto, 4) # ipencap inner = rx[IP].payload self.assertEqual(inner[IP].src, self.pg2.remote_ip4) self.assertEqual(inner[IP].dst, "172.16.10.3") size += inner[IP].len - 20 - 20 self.assertEqual(size, 65200) # # disable ipip4 # self.vapi.feature_gso_enable_disable(self.ipip4.sw_if_index, 0) self.ip4_via_ip4_tunnel.remove_vpp_config() self.ip6_via_ip4_tunnel.remove_vpp_config() self.ipip4.remove_vpp_config() # # enable ipip6 # self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index) self.ipip6.add_vpp_config() # Set interface up and enable IP on it self.ipip6.admin_up() self.ipip6.set_unnumbered(self.pg0.sw_if_index) # Add IPv4 routes via tunnel interface self.ip4_via_ip6_tunnel = VppIpRoute( self, "172.16.10.0", 24, [VppRoutePath("0.0.0.0", self.ipip6.sw_if_index, proto=FibPathProto.FIB_PATH_NH_PROTO_IP4)]) self.ip4_via_ip6_tunnel.add_vpp_config() # # IPv6/IPv4 - IPIP # p48 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") / IP(src=self.pg2.remote_ip4, dst="172.16.10.3", flags='DF') / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p48], self.pg0, 45) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg0.local_mac) self.assertEqual(rx[Ether].dst, self.pg0.remote_mac) self.assertEqual(rx[IPv6].src, self.pg0.local_ip6) self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6) self.assertEqual(ipv6nh[rx[IPv6].nh], "IP") inner = rx[IPv6].payload self.assertEqual(inner[IP].src, self.pg2.remote_ip4) self.assertEqual(inner[IP].dst, "172.16.10.3") size += inner[IP].len - 20 - 20 self.assertEqual(size, 65200) self.ip6_via_ip6_tunnel = VppIpRoute( self, "fd01:10::", 64, [VppRoutePath("::", self.ipip6.sw_if_index, proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)]) self.ip6_via_ip6_tunnel.add_vpp_config() # # IPv6/IPv6 - IPIP # p68 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") / IPv6(src=self.pg2.remote_ip6, dst="fd01:10::3") / TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200)) rxs = self.send_and_expect(self.pg2, [p68], self.pg0, 45) size = 0 for rx in rxs: self.assertEqual(rx[Ether].src, self.pg0.local_mac) self.assertEqual(rx[Ether].dst, self.pg0.remote_mac) self.assertEqual(rx[IPv6].src, self.pg0.local_ip6) self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6) self.assertEqual(ipv6nh[rx[IPv6].nh], "IPv6") inner = rx[IPv6].payload self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6) self.assertEqual(inner[IPv6].dst, "fd01:10::3") size += inner[IPv6].plen - 20 self.assertEqual(size, 65200) # # disable ipip6 # self.ip4_via_ip6_tunnel.remove_vpp_config() self.ip6_via_ip6_tunnel.remove_vpp_config() self.ipip6.remove_vpp_config() if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)