def test_ip_mcast_signal(self):
""" IP Multicast Signal """
#
# A (*,G).
# one accepting interface, pg0, 1 forwarding interfaces
#
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),
VppMRoutePath(self.pg1.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)
])
route_232_1_1_1.add_vpp_config()
route_232_1_1_1.update_entry_flags(
MRouteEntryFlags.MFIB_ENTRY_FLAG_SIGNAL)
#
# Now the (*,G) is present, send from connected source
#
tx = self._mcast_connected_send_stream("232.1.1.1")
#
# Constrct a representation of the signal we expect on pg0
#
signal_232_1_1_1_itf_0 = VppMFibSignal(self, route_232_1_1_1,
self.pg0.sw_if_index, tx[0])
#
# read the only expected signal
#
signals = self.vapi.mfib_signal_dump()
self.assertEqual(1, len(signals))
signal_232_1_1_1_itf_0.compare(signals[0])
#
# reading the signal allows for the generation of another
# so send more packets and expect the next signal
#
tx = self._mcast_connected_send_stream("232.1.1.1")
signals = self.vapi.mfib_signal_dump()
self.assertEqual(1, len(signals))
signal_232_1_1_1_itf_0.compare(signals[0])
#
# Set the negate-signal on the accepting interval - the signals
# should stop
#
route_232_1_1_1.update_path_flags(
self.pg0.sw_if_index,
(MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT
| MRouteItfFlags.MFIB_ITF_FLAG_NEGATE_SIGNAL))
tx = self._mcast_connected_send_stream("232.1.1.1")
signals = self.vapi.mfib_signal_dump()
self.assertEqual(0, len(signals))
#
# Clear the SIGNAL flag on the entry and the signals should
# come back since the interface is still NEGATE-SIGNAL
#
route_232_1_1_1.update_entry_flags(
MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE)
tx = self._mcast_connected_send_stream("232.1.1.1")
signals = self.vapi.mfib_signal_dump()
self.assertEqual(1, len(signals))
signal_232_1_1_1_itf_0.compare(signals[0])
#
# Lastly remove the NEGATE-SIGNAL from the interface and the
# signals should stop
#
route_232_1_1_1.update_path_flags(self.pg0.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT)
tx = self._mcast_connected_send_stream("232.1.1.1")
signals = self.vapi.mfib_signal_dump()
self.assertEqual(0, len(signals))
#
# Cleanup
#
route_232_1_1_1.remove_vpp_config()
def test_ip6_mcast(self):
""" IPv6 Multicast Replication """
#
# a stream that matches the default route. gets dropped.
#
self.vapi.cli("clear trace")
tx = self.create_stream_ip6(self.pg0, "2001::1", "ff01::1")
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.pg0.assert_nothing_captured(
remark="IPv6 multicast packets forwarded on default route")
#
# A (*,G).
# one accepting interface, pg0, 3 forwarding interfaces
#
route_ff01_1 = VppIpMRoute(
self,
"::",
"ff01::1",
128,
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),
VppMRoutePath(self.pg2.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
VppMRoutePath(self.pg3.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)
],
is_ip6=1)
route_ff01_1.add_vpp_config()
#
# 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.pg0.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)
],
is_ip6=1)
route_2001_ff01_1.add_vpp_config()
#
# An (*,G/m).
# one accepting interface, pg0, 1 forwarding interface
#
route_ff01 = VppIpMRoute(
self,
"::",
"ff01::",
16,
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)
],
is_ip6=1)
route_ff01.add_vpp_config()
#
# a stream that matches the route for (*, ff01::/16)
#
self.vapi.cli("clear trace")
tx = self.create_stream_ip6(self.pg0, "2002::1", "ff01:2::255")
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# We expect replications on Pg1
self.verify_capture_ip6(self.pg1, tx)
# no replications on Pg0, Pg3
self.pg0.assert_nothing_captured(
remark="IP multicast packets forwarded on PG0")
self.pg2.assert_nothing_captured(
remark="IP multicast packets forwarded on PG2")
self.pg3.assert_nothing_captured(
remark="IP multicast packets forwarded on PG3")
#
# a stream that matches the route for (*,ff01::1)
#
self.vapi.cli("clear trace")
tx = self.create_stream_ip6(self.pg0, "2002::2", "ff01::1")
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# We expect replications on Pg1, 2, 3.
self.verify_capture_ip6(self.pg1, tx)
self.verify_capture_ip6(self.pg2, tx)
self.verify_capture_ip6(self.pg3, tx)
# no replications on Pg0
self.pg0.assert_nothing_captured(
remark="IPv6 multicast packets forwarded on PG0")
#
# a stream that matches the route for (2001::1, ff00::1)
#
self.vapi.cli("clear trace")
tx = self.create_stream_ip6(self.pg0, "2001::1", "ff01::1")
self.pg0.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)
# no replications on Pg0, 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")
route_ff01.remove_vpp_config()
route_ff01_1.remove_vpp_config()
route_2001_ff01_1.remove_vpp_config()
def test_ip_mcast_connected(self):
""" IP Multicast Connected Source check """
#
# A (*,G).
# one accepting interface, pg0, 1 forwarding interfaces
#
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),
VppMRoutePath(self.pg1.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)
])
route_232_1_1_1.add_vpp_config()
route_232_1_1_1.update_entry_flags(
MRouteEntryFlags.MFIB_ENTRY_FLAG_CONNECTED)
#
# Now the (*,G) is present, send from connected source
#
tx = self._mcast_connected_send_stream("232.1.1.1")
#
# Constrct a representation of the signal we expect on pg0
#
signal_232_1_1_1_itf_0 = VppMFibSignal(self, route_232_1_1_1,
self.pg0.sw_if_index, tx[0])
#
# read the only expected signal
#
signals = self.vapi.mfib_signal_dump()
self.assertEqual(1, len(signals))
signal_232_1_1_1_itf_0.compare(signals[0])
#
# reading the signal allows for the generation of another
# so send more packets and expect the next signal
#
tx = self._mcast_connected_send_stream("232.1.1.1")
signals = self.vapi.mfib_signal_dump()
self.assertEqual(1, len(signals))
signal_232_1_1_1_itf_0.compare(signals[0])
#
# A Second entry with connected check
# one accepting interface, pg0, 1 forwarding interfaces
#
route_232_1_1_2 = VppIpMRoute(
self, "0.0.0.0", "232.1.1.2", 32,
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)
])
route_232_1_1_2.add_vpp_config()
route_232_1_1_2.update_entry_flags(
MRouteEntryFlags.MFIB_ENTRY_FLAG_CONNECTED)
#
# Send traffic to both entries. One read should net us two signals
#
signal_232_1_1_2_itf_0 = VppMFibSignal(self, route_232_1_1_2,
self.pg0.sw_if_index, tx[0])
tx = self._mcast_connected_send_stream("232.1.1.1")
tx2 = self._mcast_connected_send_stream("232.1.1.2")
#
# read the only expected signal
#
signals = self.vapi.mfib_signal_dump()
self.assertEqual(2, len(signals))
signal_232_1_1_1_itf_0.compare(signals[1])
signal_232_1_1_2_itf_0.compare(signals[0])
route_232_1_1_1.remove_vpp_config()
route_232_1_1_2.remove_vpp_config()
def test_ip_mcast(self):
""" IP Multicast Replication """
#
# a stream that matches the default route. gets dropped.
#
self.vapi.cli("clear trace")
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()
self.pg0.assert_nothing_captured(
remark="IP multicast packets forwarded on default route")
#
# A (*,G).
# one accepting interface, pg0, 7 forwarding interfaces
# many forwarding interfaces test the case where the replicare DPO
# needs to use extra cache lines for the buckets.
#
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),
VppMRoutePath(self.pg1.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
VppMRoutePath(self.pg2.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
VppMRoutePath(self.pg3.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
VppMRoutePath(self.pg4.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
VppMRoutePath(self.pg5.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
VppMRoutePath(self.pg6.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
VppMRoutePath(self.pg7.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)
])
route_232_1_1_1.add_vpp_config()
#
# 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", "232.1.1.1", 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),
VppMRoutePath(self.pg2.sw_if_index,
MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)
])
route_1_1_1_1_232_1_1_1.add_vpp_config()
#
# An (*,G/m).
# one accepting interface, pg0, 1 forwarding interfaces
#
route_232 = VppIpMRoute(
self, "0.0.0.0", "232.0.0.0", 8,
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)
])
route_232.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.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->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.pg4, tx)
self.verify_capture_ip4(self.pg5, 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")
self.pg3.assert_nothing_captured(
remark="IP multicast packets forwarded on PG3")
#
# a stream that matches the route for (1.1.1.1,232.1.1.1)
# large packets
#
self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0,
"1.1.1.1",
"232.1.1.1",
payload_size=1024)
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)
self.verify_capture_ip4(self.pg2, tx)
self.verify_capture_ip4(self.pg3, tx)
self.verify_capture_ip4(self.pg4, tx)
self.verify_capture_ip4(self.pg5, 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")
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
#
self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "232.255.255.255")
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# We expect replications on Pg1 only
self.verify_capture_ip4(self.pg1, tx)
# no replications on Pg0, Pg2 not Pg3
self.pg0.assert_nothing_captured(
remark="IP multicast packets forwarded on PG0")
self.pg2.assert_nothing_captured(
remark="IP multicast packets forwarded on PG2")
self.pg3.assert_nothing_captured(
remark="IP multicast packets forwarded on PG3")
#
# a stream that matches the route for (*,232.1.1.1)
#
self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "1.1.1.2", "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.
self.verify_capture_ip4(self.pg1, tx)
self.verify_capture_ip4(self.pg2, tx)
self.verify_capture_ip4(self.pg3, tx)
# no replications on Pg0
self.pg0.assert_nothing_captured(
remark="IP multicast packets forwarded on PG0")
route_232_1_1_1.remove_vpp_config()
route_1_1_1_1_232_1_1_1.remove_vpp_config()
route_232.remove_vpp_config()
