diff options
Diffstat (limited to 'test/test_ip_mcast.py')
| -rw-r--r-- | test/test_ip_mcast.py | 47 |
1 files changed, 38 insertions, 9 deletions
diff --git a/test/test_ip_mcast.py b/test/test_ip_mcast.py index 957bab5a2af..864cb80319c 100644 --- a/test/test_ip_mcast.py +++ b/test/test_ip_mcast.py @@ -8,7 +8,7 @@ from vpp_ip_route import VppIpMRoute, VppMRoutePath, VppMFibSignal 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 @@ -70,16 +70,17 @@ class TestIPMcast(VppTestCase): 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 @@ -237,6 +238,7 @@ class TestIPMcast(VppTestCase): # # 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") @@ -261,6 +263,33 @@ class TestIPMcast(VppTestCase): 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 |