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#!/usr/bin/env python
import socket
import unittest
from framework import VppTestCase, VppTestRunner
from scapy.packet import Raw
from scapy.layers.l2 import Ether
from scapy.layers.inet import IP, UDP
from vpp_bond_interface import VppBondInterface
from vpp_papi import MACAddress
from vpp_ip import VppIpPrefix
class TestBondInterface(VppTestCase):
"""Bond Test Case
"""
@classmethod
def setUpClass(cls):
super(TestBondInterface, cls).setUpClass()
# Test variables
cls.pkts_per_burst = 257 # Number of packets per burst
# create 3 pg interfaces
cls.create_pg_interfaces(range(4))
# packet sizes
cls.pg_if_packet_sizes = [64, 512, 1518] # , 9018]
# setup all interfaces
for i in cls.pg_interfaces:
i.admin_up()
def setUp(self):
super(TestBondInterface, self).setUp()
def tearDown(self):
super(TestBondInterface, self).tearDown()
if not self.vpp_dead:
self.logger.info(self.vapi.ppcli("show interface"))
def test_bond_traffic(self):
""" Bond traffic test """
# topology
#
# RX-> TX->
#
# pg2 ------+ +------pg0 (slave)
# | |
# BondEthernet0 (10.10.10.1)
# | |
# pg3 ------+ +------pg1 (slave)
#
# create interface (BondEthernet0)
# self.logger.info("create bond")
bond0_mac = "02:fe:38:30:59:3c"
mac = MACAddress(bond0_mac).packed
bond0 = VppBondInterface(self,
mode=3,
lb=1,
use_custom_mac=1,
mac_address=mac)
bond0.add_vpp_config()
bond0.admin_up()
self.vapi.sw_interface_add_del_address(
sw_if_index=bond0.sw_if_index,
prefix=VppIpPrefix("10.10.10.1", 24).encode())
self.pg2.config_ip4()
self.pg2.resolve_arp()
self.pg3.config_ip4()
self.pg3.resolve_arp()
self.logger.info(self.vapi.cli("show interface"))
self.logger.info(self.vapi.cli("show interface address"))
self.logger.info(self.vapi.cli("show ip arp"))
# enslave pg0 and pg1 to BondEthernet0
self.logger.info("bond enslave interface pg0 to BondEthernet0")
bond0.enslave_vpp_bond_interface(sw_if_index=self.pg0.sw_if_index,
is_passive=0,
is_long_timeout=0)
self.logger.info("bond enslave interface pg1 to BondEthernet0")
bond0.enslave_vpp_bond_interface(sw_if_index=self.pg1.sw_if_index,
is_passive=0,
is_long_timeout=0)
# verify both slaves in BondEthernet0
if_dump = self.vapi.sw_interface_slave_dump(bond0.sw_if_index)
self.assertTrue(self.pg0.is_interface_config_in_dump(if_dump))
self.assertTrue(self.pg1.is_interface_config_in_dump(if_dump))
# generate a packet from pg2 -> BondEthernet0 -> pg1
# BondEthernet0 TX hashes this packet to pg1
p2 = (Ether(src=bond0_mac, dst=self.pg2.local_mac) /
IP(src=self.pg2.local_ip4, dst="10.10.10.12") /
UDP(sport=1235, dport=1235) /
Raw('\xa5' * 100))
self.pg2.add_stream(p2)
# generate a packet from pg3 -> BondEthernet0 -> pg0
# BondEthernet0 TX hashes this packet to pg0
# notice the ip address and ports are different than p2 packet
p3 = (Ether(src=bond0_mac, dst=self.pg3.local_mac) /
IP(src=self.pg3.local_ip4, dst="10.10.10.11") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.pg3.add_stream(p3)
self.pg_enable_capture(self.pg_interfaces)
# set up the static arp entries pointing to the BondEthernet0 interface
# so that it does not try to resolve the ip address
self.logger.info(self.vapi.cli(
"set ip arp static BondEthernet0 10.10.10.12 abcd.abcd.0002"))
self.logger.info(self.vapi.cli(
"set ip arp static BondEthernet0 10.10.10.11 abcd.abcd.0004"))
# clear the interface counters
self.logger.info(self.vapi.cli("clear interfaces"))
self.pg_start()
self.logger.info("check the interface counters")
# verify counters
# BondEthernet0 tx bytes = 284
intfs = self.vapi.cli("show interface BondEthernet0").split("\n")
found = 0
for intf in intfs:
if "tx bytes" in intf and "284" in intf:
found = 1
self.assertEqual(found, 1)
# BondEthernet0 tx bytes = 284
intfs = self.vapi.cli("show interface BondEthernet0").split("\n")
found = 0
for intf in intfs:
if "tx bytes" in intf and "284" in intf:
found = 1
self.assertEqual(found, 1)
# pg2 rx bytes = 142
intfs = self.vapi.cli("show interface pg2").split("\n")
found = 0
for intf in intfs:
if "rx bytes" in intf and "142" in intf:
found = 1
self.assertEqual(found, 1)
# pg3 rx bytes = 142
intfs = self.vapi.cli("show interface pg3").split("\n")
found = 0
for intf in intfs:
if "rx bytes" in intf and "142" in intf:
found = 1
self.assertEqual(found, 1)
bond0.remove_vpp_config()
def test_bond_enslave(self):
""" Bond enslave/detach slave test """
# create interface (BondEthernet0)
self.logger.info("create bond")
bond0 = VppBondInterface(self, mode=3)
bond0.add_vpp_config()
bond0.admin_up()
# verify pg0 and pg1 not in BondEthernet0
if_dump = self.vapi.sw_interface_slave_dump(bond0.sw_if_index)
self.assertFalse(self.pg0.is_interface_config_in_dump(if_dump))
self.assertFalse(self.pg1.is_interface_config_in_dump(if_dump))
# enslave pg0 and pg1 to BondEthernet0
self.logger.info("bond enslave interface pg0 to BondEthernet0")
bond0.enslave_vpp_bond_interface(sw_if_index=self.pg0.sw_if_index,
is_passive=0,
is_long_timeout=0)
self.logger.info("bond enslave interface pg1 to BondEthernet0")
bond0.enslave_vpp_bond_interface(sw_if_index=self.pg1.sw_if_index,
is_passive=0,
is_long_timeout=0)
# verify both slaves in BondEthernet0
if_dump = self.vapi.sw_interface_slave_dump(bond0.sw_if_index)
self.assertTrue(self.pg0.is_interface_config_in_dump(if_dump))
self.assertTrue(self.pg1.is_interface_config_in_dump(if_dump))
# detach interface pg0
self.logger.info("detach interface pg0")
bond0.detach_vpp_bond_interface(sw_if_index=self.pg0.sw_if_index)
# verify pg0 is not in BondEthernet0, but pg1 is
if_dump = self.vapi.sw_interface_slave_dump(bond0.sw_if_index)
self.assertFalse(self.pg0.is_interface_config_in_dump(if_dump))
self.assertTrue(self.pg1.is_interface_config_in_dump(if_dump))
# detach interface pg1
self.logger.info("detach interface pg1")
bond0.detach_vpp_bond_interface(sw_if_index=self.pg1.sw_if_index)
# verify pg0 and pg1 not in BondEthernet0
if_dump = self.vapi.sw_interface_slave_dump(bond0.sw_if_index)
self.assertFalse(self.pg0.is_interface_config_in_dump(if_dump))
self.assertFalse(self.pg1.is_interface_config_in_dump(if_dump))
bond0.remove_vpp_config()
def test_bond(self):
""" Bond add/delete interface test """
self.logger.info("Bond add interfaces")
# create interface 1 (BondEthernet0)
bond0 = VppBondInterface(self, mode=5)
bond0.add_vpp_config()
bond0.admin_up()
# create interface 2 (BondEthernet1)
bond1 = VppBondInterface(self, mode=3)
bond1.add_vpp_config()
bond1.admin_up()
# verify both interfaces in the show
ifs = self.vapi.cli("show interface")
self.assertIn('BondEthernet0', ifs)
self.assertIn('BondEthernet1', ifs)
# verify they are in the dump also
if_dump = self.vapi.sw_interface_bond_dump()
self.assertTrue(bond0.is_interface_config_in_dump(if_dump))
self.assertTrue(bond1.is_interface_config_in_dump(if_dump))
# delete BondEthernet1
self.logger.info("Deleting BondEthernet1")
bond1.remove_vpp_config()
self.logger.info("Verifying BondEthernet1 is deleted")
ifs = self.vapi.cli("show interface")
# verify BondEthernet0 still in the show
self.assertIn('BondEthernet0', ifs)
# verify BondEthernet1 not in the show
self.assertNotIn('BondEthernet1', ifs)
# verify BondEthernet1 is not in the dump
if_dump = self.vapi.sw_interface_bond_dump()
self.assertFalse(bond1.is_interface_config_in_dump(if_dump))
# verify BondEthernet0 is still in the dump
self.assertTrue(bond0.is_interface_config_in_dump(if_dump))
# delete BondEthernet0
self.logger.info("Deleting BondEthernet0")
bond0.remove_vpp_config()
self.logger.info("Verifying BondEthernet0 is deleted")
# verify BondEthernet0 not in the show
ifs = self.vapi.cli("show interface")
self.assertNotIn('BondEthernet0', ifs)
# verify BondEthernet0 is not in the dump
if_dump = self.vapi.sw_interface_bond_dump()
self.assertFalse(bond0.is_interface_config_in_dump(if_dump))
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
|
