+ route_1_1_1_1_232_1_1_1 = VppIpMRoute(
+ self,
+ "1.1.1.1",
+ "232.1.1.1", 64,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ [VppMRoutePath(self.pg8.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg2.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)],
+ table_id=10)
+ route_1_1_1_1_232_1_1_1.add_vpp_config()
+
+ #
+ # a stream that matches the route for (1.1.1.1,232.1.1.1)
+ # small packets
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip4(self.pg8, "1.1.1.1", "232.1.1.1")
+ self.pg8.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # We expect replications on Pg1 & 2
+ self.verify_capture_ip4(self.pg1, tx)
+ self.verify_capture_ip4(self.pg2, tx)
+
+ def test_ip_mcast_gre(self):
+ """ IP Multicast Replication over GRE"""
+
+ gre_if_1 = VppGreInterface(
+ self,
+ self.pg1.local_ip4,
+ self.pg1.remote_ip4).add_vpp_config()
+ gre_if_2 = VppGreInterface(
+ self,
+ self.pg2.local_ip4,
+ self.pg2.remote_ip4).add_vpp_config()
+ gre_if_3 = VppGreInterface(
+ self,
+ self.pg3.local_ip4,
+ self.pg3.remote_ip4).add_vpp_config()
+
+ gre_if_1.admin_up()
+ gre_if_1.config_ip4()
+ gre_if_2.admin_up()
+ gre_if_2.config_ip4()
+ gre_if_3.admin_up()
+ gre_if_3.config_ip4()
+
+ #
+ # An (S,G).
+ # one accepting interface, pg0, 2 forwarding interfaces
+ #
+ route_1_1_1_1_232_1_1_1 = VppIpMRoute(
+ self,
+ "1.1.1.1",
+ "232.2.2.2", 64,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ [VppMRoutePath(gre_if_1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ VppMRoutePath(gre_if_2.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(gre_if_3.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
+ route_1_1_1_1_232_1_1_1.add_vpp_config()
+
+ #
+ # a stream that matches the route for (1.1.1.1,232.2.2.2)
+ # small packets
+ #
+ tx = (Ether(dst=self.pg1.local_mac,
+ src=self.pg1.remote_mac) /
+ IP(src=self.pg1.remote_ip4,
+ dst=self.pg1.local_ip4) /
+ GRE() /
+ IP(src="1.1.1.1", dst="232.2.2.2") /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\a5' * 64)) * 63
+
+ self.vapi.cli("clear trace")
+ self.pg1.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # We expect replications on Pg2 & 3
+ # check the encap headers are as expected based on the egress tunnel
+ rxs = self.pg2.get_capture(len(tx))
+ for rx in rxs:
+ self.assertEqual(rx[IP].src, gre_if_2.t_src)
+ self.assertEqual(rx[IP].dst, gre_if_2.t_dst)
+ self.assert_packet_checksums_valid(rx)
+
+ rxs = self.pg3.get_capture(len(tx))
+ for rx in rxs:
+ self.assertEqual(rx[IP].src, gre_if_3.t_src)
+ self.assertEqual(rx[IP].dst, gre_if_3.t_dst)
+ self.assert_packet_checksums_valid(rx)
+
+ def test_ip6_mcast_vrf(self):
+ """ IPv6 Multicast Replication in non-default table"""
+
+ #
+ # An (S,G).
+ # one accepting interface, pg0, 2 forwarding interfaces
+ #
+ route_2001_ff01_1 = VppIpMRoute(
+ self,
+ "2001::1",
+ "ff01::1", 256,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ [VppMRoutePath(self.pg8.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
+ VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
+ VppMRoutePath(self.pg2.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)],
+ table_id=10)
+ route_2001_ff01_1.add_vpp_config()
+
+ #
+ # a stream that matches the route for (2001::1, ff00::1)
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip6(self.pg8, "2001::1", "ff01::1")
+ self.pg8.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # We expect replications on Pg1, 2,
+ self.verify_capture_ip6(self.pg1, tx)
+ self.verify_capture_ip6(self.pg2, tx)
+
+ def test_bidir(self):
+ """ IP Multicast Bi-directional """
+
+ #
+ # A (*,G). The set of accepting interfaces matching the forwarding
+ #
+ route_232_1_1_1 = VppIpMRoute(
+ self,
+ "0.0.0.0",
+ "232.1.1.1", 32,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ [VppMRoutePath(self.pg0.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT |
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT |
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg2.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT |
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg3.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT |
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
+ route_232_1_1_1.add_vpp_config()
+
+ tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "232.1.1.1")
+ self.pg0.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # We expect replications on Pg1, 2, 3, but not on pg0
+ self.verify_capture_ip4(self.pg1, tx)
+ self.verify_capture_ip4(self.pg2, tx)
+ self.verify_capture_ip4(self.pg3, tx)
+ self.pg0.assert_nothing_captured(
+ remark="IP multicast packets forwarded on PG0")