#!/usr/bin/env python3 import socket import unittest from scapy.packet import Raw from scapy.layers.l2 import Ether from scapy.layers.inet import IP, UDP from framework import VppTestCase, VppTestRunner from vpp_bond_interface import VppBondInterface from vpp_papi import MACAddress, VppEnum 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() @classmethod def tearDownClass(cls): super(TestBondInterface, cls).tearDownClass() def setUp(self): super(TestBondInterface, self).setUp() def tearDown(self): super(TestBondInterface, self).tearDown() def show_commands_at_teardown(self): self.logger.info(self.vapi.ppcli("show interface")) def test_bond_traffic(self): """ Bond traffic test """ # topology # # RX-> TX-> # # pg2 ------+ +------pg0 (member) # | | # BondEthernet0 (10.10.10.1) # | | # pg3 ------+ +------pg1 (memberx) # # 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=VppEnum.vl_api_bond_mode_t.BOND_API_MODE_XOR, lb=VppEnum.vl_api_bond_lb_algo_t.BOND_API_LB_ALGO_L34, numa_only=0, 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="10.10.10.1/24") 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 neighbors")) # add member pg0 and pg1 to BondEthernet0 self.logger.info("bond add member interface pg0 to BondEthernet0") bond0.add_member_vpp_bond_interface(sw_if_index=self.pg0.sw_if_index) self.logger.info("bond add_member interface pg1 to BondEthernet0") bond0.add_member_vpp_bond_interface(sw_if_index=self.pg1.sw_if_index) # verify both members in BondEthernet0 if_dump = self.vapi.sw_member_interface_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(b'\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(b'\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 neighbor static BondEthernet0 10.10.10.12 abcd.abcd.0002")) self.logger.info(self.vapi.cli( "set ip neighbor 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_add_member(self): """ Bond add_member/detach member test """ # create interface (BondEthernet0) and set bond mode to LACP self.logger.info("create bond") bond0 = VppBondInterface( self, mode=VppEnum.vl_api_bond_mode_t.BOND_API_MODE_LACP, enable_gso=0) bond0.add_vpp_config() bond0.admin_up() # verify that interfaces can be added as_member and detached two times for i in range(2): # verify pg0 and pg1 not in BondEthernet0 if_dump = self.vapi.sw_member_interface_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)) # add_member pg0 and pg1 to BondEthernet0 self.logger.info("bond add_member interface pg0 to BondEthernet0") bond0.add_member_vpp_bond_interface( sw_if_index=self.pg0.sw_if_index, is_passive=0, is_long_timeout=0) self.logger.info("bond add_member interface pg1 to BondEthernet0") bond0.add_member_vpp_bond_interface( sw_if_index=self.pg1.sw_if_index, is_passive=0, is_long_timeout=0) # verify both members in BondEthernet0 if_dump = self.vapi.sw_member_interface_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_member_interface_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_member_interface_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=VppEnum.vl_api_bond_mode_t.BOND_API_MODE_LACP) bond0.add_vpp_config() bond0.admin_up() # create interface 2 (BondEthernet1) bond1 = VppBondInterface( self, mode=VppEnum.vl_api_bond_mode_t.BOND_API_MODE_XOR) 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_bond_interface_dump(sw_if_index=0xFFFFFFFF) 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_bond_interface_dump(sw_if_index=0xFFFFFFFF) 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_bond_interface_dump( sw_if_index=bond0.sw_if_index) self.assertFalse(bond0.is_interface_config_in_dump(if_dump)) def test_bond_link(self): """ Bond hw interface link state test """ # for convenience bond_modes = VppEnum.vl_api_bond_mode_t intf_flags = VppEnum.vl_api_if_status_flags_t # create interface 1 (BondEthernet0) self.logger.info("Create bond interface") # use round-robin mode to avoid negotiation required by LACP bond0 = VppBondInterface(self, mode=bond_modes.BOND_API_MODE_ROUND_ROBIN) bond0.add_vpp_config() # set bond admin up. self.logger.info("set interface BondEthernet0 admin up") bond0.admin_up() # confirm link up bond0.assert_interface_state(intf_flags.IF_STATUS_API_FLAG_ADMIN_UP, intf_flags.IF_STATUS_API_FLAG_LINK_UP) # toggle bond admin state self.logger.info("toggle interface BondEthernet0") bond0.admin_down() bond0.admin_up() # confirm link is still up bond0.assert_interface_state(intf_flags.IF_STATUS_API_FLAG_ADMIN_UP, intf_flags.IF_STATUS_API_FLAG_LINK_UP) # delete BondEthernet0 self.logger.info("Deleting BondEthernet0") bond0.remove_vpp_config() if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)