#!/usr/bin/env python
+"""IRB Test Case HLD:
+
+**config**
+ - L2 MAC learning enabled in l2bd
+ - 2 routed interfaces untagged, bvi (Bridge Virtual Interface)
+ - 2 bridged interfaces in l2bd with bvi
+
+**test**
+ - sending ip4 eth pkts between routed interfaces
+ - 2 routed interfaces
+ - 2 bridged interfaces
+
+ - 64B, 512B, 1518B, 9200B (ether_size)
+
+ - burst of pkts per interface
+ - 257pkts per burst
+ - routed pkts hitting different FIB entries
+ - bridged pkts hitting different MAC entries
+
+**verify**
+ - all packets received correctly
+
+"""
+
import unittest
-from random import choice, randint
+from random import choice
from scapy.packet import Raw
from scapy.layers.l2 import Ether
from scapy.layers.inet import IP, UDP
-from logging import *
from framework import VppTestCase, VppTestRunner
-""" IRB Test Case
-
-config
- L2 MAC learning enabled in l2bd
- 2 routed interfaces untagged, bvi
- 2 bridged interfaces in l2bd with bvi
-test
- sending ip4 eth pkts between routed interfaces
- 2 routed interfaces
- 2 bridged interfaces
- 64B, 512B, 1518B, 9200B (ether_size)
- burst of pkts per interface
- 257pkts per burst
- routed pkts hitting different FIB entries
- bridged pkts hitting different MAC entries
-verify
- all packets received correctly
-"""
-
class TestIpIrb(VppTestCase):
- """ IRB Test Case """
+ """IRB Test Case"""
@classmethod
def setUpClass(cls):
+ """
+ #. Create BD with MAC learning enabled and put interfaces to this BD.
+ #. Configure IPv4 addresses on loopback interface and routed interface.
+ #. Configure MAC address binding to IPv4 neighbors on loop0.
+ #. Configure MAC address on pg2.
+ #. Loopback BVI interface has remote hosts, one half of hosts are
+ behind pg0 second behind pg1.
+ """
super(TestIpIrb, cls).setUpClass()
cls.pg_if_packet_sizes = [64, 512, 1518, 9018] # packet sizes
cls.vapi.sw_interface_set_l2_bridge(
cls.pg1.sw_if_index, bd_id=cls.bd_id)
+ # Configure IPv4 addresses on loopback interface and routed interface
cls.loop0.config_ip4()
cls.pg2.config_ip4()
- # configure MAC address binding to IPv4 neighbors on loop0
+ # Configure MAC address binding to IPv4 neighbors on loop0
cls.loop0.generate_remote_hosts(cls.remote_hosts_count)
- cls.loop0.configure_extend_ipv4_mac_binding()
+ cls.loop0.configure_ipv4_neighbors()
# configure MAC address on pg2
cls.pg2.resolve_arp()
- # one half of hosts are behind pg0 second behind pg1
+ # Loopback BVI interface has remote hosts, one half of hosts are behind
+ # pg0 second behind pg1
half = cls.remote_hosts_count // 2
cls.pg0.remote_hosts = cls.loop0.remote_hosts[:half]
cls.pg1.remote_hosts = cls.loop0.remote_hosts[half:]
def tearDown(self):
+ """Run standard test teardown and log ``show l2patch``,
+ ``show l2fib verbose``,``show bridge-domain <bd_id> detail``,
+ ``show ip arp``.
+ """
super(TestIpIrb, self).tearDown()
if not self.vpp_dead:
- info(self.vapi.cli("show l2patch"))
- info(self.vapi.cli("show l2fib verbose"))
- info(self.vapi.cli("show bridge-domain %s detail" % self.bd_id))
- info(self.vapi.cli("show ip arp"))
+ self.logger.info(self.vapi.cli("show l2patch"))
+ self.logger.info(self.vapi.cli("show l2fib verbose"))
+ self.logger.info(self.vapi.cli("show bridge-domain %s detail" %
+ self.bd_id))
+ self.logger.info(self.vapi.cli("show ip arp"))
def create_stream(self, src_ip_if, dst_ip_if, packet_sizes):
pkts = []
for i in range(0, 257):
remote_dst_host = choice(dst_ip_if.remote_hosts)
- info = self.create_packet_info(
- src_ip_if.sw_if_index, dst_ip_if.sw_if_index)
+ info = self.create_packet_info(src_ip_if, dst_ip_if)
payload = self.info_to_payload(info)
p = (Ether(dst=src_ip_if.local_mac, src=src_ip_if.remote_mac) /
IP(src=src_ip_if.remote_ip4,
packet_sizes):
pkts = []
for i in range(0, 257):
- info = self.create_packet_info(
- src_ip_if.sw_if_index, dst_ip_if.sw_if_index)
+ info = self.create_packet_info(src_ip_if, dst_ip_if)
payload = self.info_to_payload(info)
host = choice(src_l2_if.remote_hosts)
p = (Ether(src=host.mac,
- dst = src_ip_if.local_mac) /
+ dst=src_ip_if.local_mac) /
IP(src=host.ip4,
dst=dst_ip_if.remote_ip4) /
UDP(sport=1234, dport=1234) /
ip = packet[IP]
udp = packet[IP][UDP]
payload_info = self.payload_to_info(str(packet[IP][UDP][Raw]))
- packet_index = payload_info.index
self.assertEqual(payload_info.dst, dst_ip_sw_if_index)
""" IPv4 IRB test 1
Test scenario:
- ip traffic from pg2 interface must ends in both pg0 and pg1
- - arp entry present in loop0 interface for dst IP
+ - ip traffic from pg2 interface must ends in both pg0 and pg1
+ - arp entry present in loop0 interface for destination IP
- no l2 entree configured, pg0 and pg1 are same
"""
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rcvd1 = self.pg0.get_capture()
- rcvd2 = self.pg1.get_capture()
+ packet_count = self.get_packet_count_for_if_idx(self.loop0.sw_if_index)
+
+ rcvd1 = self.pg0.get_capture(packet_count)
+ rcvd2 = self.pg1.get_capture(packet_count)
self.verify_capture(self.loop0, self.pg2, rcvd1)
self.verify_capture(self.loop0, self.pg2, rcvd2)
""" IPv4 IRB test 2
Test scenario:
- ip traffic from pg0 and pg1 ends on pg2
+ - ip traffic from pg0 and pg1 ends on pg2
"""
stream1 = self.create_stream_l2_to_ip(
rcvd = self.pg2.get_capture()
self.verify_capture_l2_to_ip(self.pg2, self.loop0, rcvd)
- self.assertEqual(len(stream1) + len(stream2), len(rcvd.res))
-
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)