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tests: IPv6 multicast over GRE

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Type: test

Signed-off-by: Neale Ranns <nranns@cisco.com>
Change-Id: I6fc907ba923581540380bc9b456b5183fc100775
This commit is contained in:
Neale Ranns
2020-11-20 14:32:56 +00:00
parent f55c34173a
commit 7d8a956287
1 changed files with 76 additions and 0 deletions
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76
test/test_ip_mcast.py
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@ -920,6 +920,82 @@ class TestIPMcast(VppTestCase):
self.assertEqual(rx[IP].dst, gre_if_3.t_dst)
self.assert_packet_checksums_valid(rx)
def test_ip6_mcast_gre(self):
""" IP6 Multicast Replication over GRE"""
MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
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_ip6()
gre_if_2.admin_up()
gre_if_2.config_ip6()
gre_if_3.admin_up()
gre_if_3.config_ip6()
#
# An (S,G).
# one accepting interface, pg0, 2 forwarding interfaces
#
route_1_1_FF_1 = VppIpMRoute(
self,
"1::1",
"FF00::1", 256,
MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
[VppMRoutePath(gre_if_1.sw_if_index,
MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT),
VppMRoutePath(gre_if_2.sw_if_index,
MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD),
VppMRoutePath(gre_if_3.sw_if_index,
MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD)])
route_1_1_FF_1.add_vpp_config()
#
# a stream that matches the route for (1::1, FF::1)
# 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() /
IPv6(src="1::1", dst="FF00::1") /
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"""