from util import ppp
#
-# The number of packets sent is set to 90 so that when we replicate more than 3
+# The number of packets sent is set to 91 so that when we replicate more than 3
# times, which we do for some entries, we will generate more than 256 packets
# to the next node in the VLIB graph. Thus we are testing the code's
-# correctness handling this over-flow
+# correctness handling this over-flow.
+# It's also an odd number so we hit any single loops.
#
-N_PKTS_IN_STREAM = 90
+N_PKTS_IN_STREAM = 91
class TestMFIB(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:
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)
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
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
self.pg3.assert_nothing_captured(
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
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)
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 """
#
# a stream that matches the route for (*, ff01::/16)
+ # sent on the non-accepting interface
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip6(self.pg1, "2002::1", "ff01:2::255")
+ self.send_and_assert_no_replies(self.pg1, tx, "RPF miss")
+
+ #
+ # a stream that matches the route for (*, ff01::/16)
+ # sent on the accepting interface
#
self.vapi.cli("clear trace")
tx = self.create_stream_ip6(self.pg0, "2002::1", "ff01:2::255")
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")
+
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff