from framework import VppTestCase, VppTestRunner
from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
-from vpp_ip_route import VppIpMRoute, VppMRoutePath, VppMFibSignal
+from vpp_ip_route import VppIpMRoute, VppMRoutePath, VppMFibSignal, \
+ MRouteItfFlags, MRouteEntryFlags
from scapy.packet import Raw
from scapy.layers.l2 import Ether
-from scapy.layers.inet import IP, UDP, getmacbyip
+from scapy.layers.inet import IP, UDP, getmacbyip, ICMP
from scapy.layers.inet6 import IPv6, getmacbyip6
from util import ppp
-
-class MRouteItfFlags:
- MFIB_ITF_FLAG_NONE = 0
- MFIB_ITF_FLAG_NEGATE_SIGNAL = 1
- MFIB_ITF_FLAG_ACCEPT = 2
- MFIB_ITF_FLAG_FORWARD = 4
- MFIB_ITF_FLAG_SIGNAL_PRESENT = 8
- MFIB_ITF_FLAG_INTERNAL_COPY = 16
-
-
-class MRouteEntryFlags:
- MFIB_ENTRY_FLAG_NONE = 0
- MFIB_ENTRY_FLAG_SIGNAL = 1
- MFIB_ENTRY_FLAG_DROP = 2
- MFIB_ENTRY_FLAG_CONNECTED = 4
- MFIB_ENTRY_FLAG_INHERIT_ACCEPT = 8
-
#
# The number of packets sent is set to 90 so that when we replicate more than 3
# times, which we do for some entries, we will generate more than 256 packets
def setUp(self):
super(TestIPMcast, self).setUp()
- # create 4 pg interfaces
- self.create_pg_interfaces(range(4))
+ # create 8 pg interfaces
+ self.create_pg_interfaces(range(8))
# setup interfaces
for i in self.pg_interfaces:
i.resolve_arp()
i.resolve_ndp()
- def create_stream_ip4(self, src_if, src_ip, dst_ip):
+ def create_stream_ip4(self, src_if, src_ip, dst_ip, payload_size=0):
pkts = []
+ # default to small packet sizes
+ p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
+ IP(src=src_ip, dst=dst_ip) /
+ UDP(sport=1234, dport=1234))
+ if not payload_size:
+ payload_size = 64 - len(p)
+ p = p / Raw('\xa5' * payload_size)
+
for i in range(0, N_PKTS_IN_STREAM):
- info = self.create_packet_info(src_if, src_if)
- payload = self.info_to_payload(info)
- p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
- IP(src=src_ip, dst=dst_ip) /
- UDP(sport=1234, dport=1234) /
- Raw(payload))
- info.data = p.copy()
pkts.append(p)
return pkts
tx = sent[i]
rx = capture[i]
- # the rx'd packet has the MPLS label popped
eth = rx[Ether]
self.assertEqual(eth.type, 0x800)
tx = sent[i]
rx = capture[i]
- # the rx'd packet has the MPLS label popped
eth = rx[Ether]
self.assertEqual(eth.type, 0x86DD)
#
# A (*,G).
- # one accepting interface, pg0, 3 forwarding interfaces
+ # 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,
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()
#
# 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.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- # We expect replications on Pg1, 2,
+ # 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(
(MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT |
MRouteItfFlags.MFIB_ITF_FLAG_NEGATE_SIGNAL))
+ self.vapi.cli("clear trace")
tx = self._mcast_connected_send_stream("232.1.1.1")
signals = self.vapi.mfib_signal_dump()