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Diffstat (limited to 'test/test_l2_flood.py')
| -rw-r--r-- | test/test_l2_flood.py | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/test/test_l2_flood.py b/test/test_l2_flood.py new file mode 100644 index 00000000000..36ec309ad97 --- /dev/null +++ b/test/test_l2_flood.py @@ -0,0 +1,148 @@ +#!/usr/bin/env python + +import unittest +import socket + +from framework import VppTestCase, VppTestRunner +from vpp_ip_route import VppIpRoute, VppRoutePath + +from scapy.packet import Raw +from scapy.layers.l2 import Ether +from scapy.layers.inet import IP, UDP + + +class TestL2Flood(VppTestCase): + """ L2-flood """ + + def setUp(self): + super(TestL2Flood, self).setUp() + + # 12 l2 interface and one l3 + self.create_pg_interfaces(range(13)) + self.create_loopback_interfaces(1) + + for i in self.pg_interfaces: + i.admin_up() + for i in self.lo_interfaces: + i.admin_up() + + self.pg12.config_ip4() + self.pg12.resolve_arp() + self.loop0.config_ip4() + + def tearDown(self): + self.pg12.unconfig_ip4() + self.loop0.unconfig_ip4() + + for i in self.pg_interfaces: + i.admin_down() + for i in self.lo_interfaces: + i.admin_down() + super(TestL2Flood, self).tearDown() + + def test_flood(self): + """ L2 Flood Tests """ + + # + # Create a single bridge Domain + # + self.vapi.bridge_domain_add_del(1) + + # + # add each interface to the BD. 3 interfaces per split horizon group + # + for i in self.pg_interfaces[0:4]: + self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 0) + for i in self.pg_interfaces[4:8]: + self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 1) + for i in self.pg_interfaces[8:12]: + self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 2) + for i in self.lo_interfaces: + self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 2, bvi=1) + + p = (Ether(dst="ff:ff:ff:ff:ff:ff", + src="00:00:de:ad:be:ef") / + IP(src="10.10.10.10", dst="1.1.1.1") / + UDP(sport=1234, dport=1234) / + Raw('\xa5' * 100)) + + # + # input on pg0 expect copies on pg1->11 + # this is in SHG=0 so its flooded to all, expect the pg0 since that's + # the ingress link + # + self.pg0.add_stream(p*65) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + for i in self.pg_interfaces[1:12]: + rx0 = i.get_capture(65, timeout=1) + + self.logger.error(self.vapi.cli("sh trace")) + + # + # input on pg4 (SHG=1) expect copies on pg0->3 (SHG=0) + # and pg8->11 (SHG=2) + # + self.pg4.add_stream(p*65) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + for i in self.pg_interfaces[:4]: + rx0 = i.get_capture(65, timeout=1) + for i in self.pg_interfaces[8:12]: + rx0 = i.get_capture(65, timeout=1) + for i in self.pg_interfaces[4:8]: + i.assert_nothing_captured(remark="Different SH group") + + # + # An IP route so the packet that hits the BVI is sent out of pg12 + # + ip_route = VppIpRoute(self, "1.1.1.1", 32, + [VppRoutePath(self.pg12.remote_ip4, + self.pg12.sw_if_index)]) + ip_route.add_vpp_config() + + self.logger.info(self.vapi.cli("sh bridge 1 detail")) + + # + # input on pg0 expect copies on pg1->12 + # this is in SHG=0 so its flooded to all, expect the pg0 since that's + # the ingress link + # + self.pg0.add_stream(p*65) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + for i in self.pg_interfaces[1:]: + rx0 = i.get_capture(65, timeout=1) + + # + # input on pg4 (SHG=1) expect copies on pg0->3 (SHG=0) + # and pg8->12 (SHG=2) + # + self.pg4.add_stream(p*65) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + for i in self.pg_interfaces[:4]: + rx0 = i.get_capture(65, timeout=1) + for i in self.pg_interfaces[8:13]: + rx0 = i.get_capture(65, timeout=1) + for i in self.pg_interfaces[4:8]: + i.assert_nothing_captured(remark="Different SH group") + + # + # cleanup + # + for i in self.pg_interfaces[:12]: + self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, enable=0) + for i in self.lo_interfaces: + self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 2, + bvi=1, enable=0) + + self.vapi.bridge_domain_add_del(1, is_add=0) + + +if __name__ == '__main__': + unittest.main(testRunner=VppTestRunner) |