diff options
Diffstat (limited to 'test/test_ip_mcast.py')
| -rw-r--r-- | test/test_ip_mcast.py | 76 |
1 files changed, 75 insertions, 1 deletions
diff --git a/test/test_ip_mcast.py b/test/test_ip_mcast.py index b753f9a3354..d1f26d11325 100644 --- a/test/test_ip_mcast.py +++ b/test/test_ip_mcast.py @@ -6,9 +6,10 @@ from framework import VppTestCase, VppTestRunner from vpp_ip import DpoProto from vpp_ip_route import VppIpMRoute, VppMRoutePath, VppMFibSignal, \ MRouteItfFlags, MRouteEntryFlags, VppIpTable, FibPathProto +from vpp_gre_interface import VppGreInterface from scapy.packet import Raw -from scapy.layers.l2 import Ether +from scapy.layers.l2 import Ether, GRE from scapy.layers.inet import IP, UDP, getmacbyip from scapy.layers.inet6 import IPv6, getmacbyip6 @@ -795,6 +796,79 @@ class TestIPMcast(VppTestCase): 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('\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""" |