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authorNeale Ranns <nranns@cisco.com>2017-06-01 07:45:05 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2018-04-17 22:29:46 +0000
commite821ab100aea2fb3f740a98650eb750ff5911c49 (patch)
treee679732692ca211858ca64a3125a1e2a82104a7c /test/test_ip_mcast.py
parent167d458cba92e2f64f48fa7bc4430c770f290561 (diff)
IP mcast: allow unicast address as a next-hop
Change-Id: I5e679f2601e37688f2768620479dc2efb7d19ca3 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'test/test_ip_mcast.py')
-rw-r--r--test/test_ip_mcast.py53
1 files changed, 50 insertions, 3 deletions
diff --git a/test/test_ip_mcast.py b/test/test_ip_mcast.py
index b4554c67f42..017f0629cd2 100644
--- a/test/test_ip_mcast.py
+++ b/test/test_ip_mcast.py
@@ -111,7 +111,7 @@ class TestIPMcast(VppTestCase):
capture.remove(p)
return capture
- def verify_capture_ip4(self, rx_if, sent):
+ def verify_capture_ip4(self, rx_if, sent, dst_mac=None):
rxd = rx_if.get_capture(len(sent))
try:
@@ -129,8 +129,11 @@ class TestIPMcast(VppTestCase):
tx_ip = tx[IP]
rx_ip = rx[IP]
+ if dst_mac is None:
+ dst_mac = getmacbyip(rx_ip.dst)
+
# check the MAC address on the RX'd packet is correctly formed
- self.assertEqual(eth.dst, getmacbyip(rx_ip.dst))
+ self.assertEqual(eth.dst, dst_mac)
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
@@ -226,6 +229,26 @@ class TestIPMcast(VppTestCase):
route_1_1_1_1_232_1_1_1.add_vpp_config()
#
+ # An (S,G).
+ # one accepting interface, pg0, 2 forwarding interfaces
+ # that use unicast next-hops
+ #
+ route_1_1_1_1_232_1_1_2 = VppIpMRoute(
+ self,
+ "1.1.1.1",
+ "232.1.1.2", 64,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ [VppMRoutePath(self.pg0.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ nh=self.pg1.remote_ip4),
+ VppMRoutePath(self.pg2.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ nh=self.pg2.remote_ip4)])
+ route_1_1_1_1_232_1_1_2.add_vpp_config()
+
+ #
# An (*,G/m).
# one accepting interface, pg0, 1 forwarding interfaces
#
@@ -284,6 +307,26 @@ class TestIPMcast(VppTestCase):
remark="IP multicast packets forwarded on PG3")
#
+ # a stream to the unicast next-hops
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "232.1.1.2")
+ self.pg0.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # We expect replications on Pg1->7
+ self.verify_capture_ip4(self.pg1, tx, dst_mac=self.pg1.remote_mac)
+ self.verify_capture_ip4(self.pg2, tx, dst_mac=self.pg2.remote_mac)
+
+ # no replications on Pg0 nor pg3
+ self.pg0.assert_nothing_captured(
+ remark="IP multicast packets forwarded on PG0")
+ self.pg3.assert_nothing_captured(
+ remark="IP multicast packets forwarded on PG3")
+
+ #
# a stream that matches the route for (*,232.0.0.0/8)
# Send packets with the 9th bit set so we test the correct clearing
# of that bit in the mac rewrite
@@ -316,7 +359,7 @@ class TestIPMcast(VppTestCase):
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- # We expect replications on Pg1, 2, 3.
+ # We expect replications on Pg1->7
self.verify_capture_ip4(self.pg1, tx)
self.verify_capture_ip4(self.pg2, tx)
self.verify_capture_ip4(self.pg3, tx)
@@ -325,6 +368,10 @@ class TestIPMcast(VppTestCase):
self.verify_capture_ip4(self.pg6, tx)
self.verify_capture_ip4(self.pg7, tx)
+ # no replications on Pg0
+ self.pg0.assert_nothing_captured(
+ remark="IP multicast packets forwarded on PG0")
+
def test_ip6_mcast(self):
""" IPv6 Multicast Replication """