def test_standby_tor_downstream_t1_link_recovered( rand_selected_dut, require_mocked_dualtor, verify_crm_nexthop_counter_not_increased, tbinfo, get_testbed_params): """ Verify traffic is distributed evenly after t1 link is recovered; Verify CRM that no new nexthop created """ PAUSE_TIME = 30 down_link = shutdown_random_one_t1_link(rand_selected_dut) time.sleep(PAUSE_TIME) params = get_testbed_params() try: check_tunnel_balance(**params) except Exception as e: no_shutdown_t1_link(rand_selected_dut, down_link) raise e no_shutdown_t1_link(rand_selected_dut, down_link) time.sleep(PAUSE_TIME) params = get_testbed_params() # For mocked dualtor, we should update static route manually after link recovered if 't0' in tbinfo['topo']['name']: remove_static_routes(rand_selected_dut, params['active_tor_ip']) add_nexthop_routes(rand_selected_dut, params['active_tor_ip']) check_tunnel_balance(**params)
def test_downstream_ecmp_nexthops(ptfadapter, rand_selected_dut, tbinfo, require_mocked_dualtor, toggle_all_simulator_ports, tor_mux_intfs): dst_server_ipv4 = "1.1.1.2" nexthops_count = 4 set_mux_state(rand_selected_dut, tbinfo, 'active', tor_mux_intfs, toggle_all_simulator_ports) iface_server_map = get_interface_server_map(rand_selected_dut, nexthops_count) interface_to_server = dict() for interface, servers in iface_server_map.items(): interface_to_server[interface] = servers['server_ipv4'].split("/")[0] nexthop_servers = list(interface_to_server.values()) nexthop_interfaces = list(interface_to_server.keys()) logging.info("Add route with four nexthops, where four muxes are active") add_nexthop_routes(rand_selected_dut, dst_server_ipv4, nexthops=nexthop_servers[0:nexthops_count]) logging.info( "Verify traffic to this route destination is distributed to four server ports" ) check_nexthops_balance(rand_selected_dut, ptfadapter, dst_server_ipv4, tbinfo, nexthop_interfaces, nexthops_count) ### Sequentially set four mux states to standby for index, interface in enumerate(nexthop_interfaces): uplink_ports_active = index + 1 logging.info("Simulate {} mux state change to Standby".format( nexthop_servers[index])) set_mux_state(rand_selected_dut, tbinfo, 'standby', [interface], toggle_all_simulator_ports) logging.info("Verify traffic to this route destination is distributed to"\ " {} server ports and {} tunnel nexthop".format( nexthops_count-uplink_ports_active, uplink_ports_active)) check_nexthops_balance( rand_selected_dut, ptfadapter, dst_server_ipv4, tbinfo, nexthop_interfaces[uplink_ports_active:nexthops_count], nexthops_count) ### Revert two mux states to active for index, interface in reversed(list(enumerate(nexthop_interfaces))): logging.info("Simulate {} mux state change back to Active".format( nexthop_servers[index])) set_mux_state(rand_selected_dut, tbinfo, 'active', [interface], toggle_all_simulator_ports) logging.info("Verify traffic to this route destination is distributed to"\ " {} server ports and {} tunnel nexthop".format(nexthops_count-index, index)) check_nexthops_balance(rand_selected_dut, ptfadapter, dst_server_ipv4, tbinfo, nexthop_interfaces[index:nexthops_count], nexthops_count) ### Remove the nexthop route remove_static_routes(rand_selected_dut, dst_server_ipv4)
def test_standby_tor_downstream_loopback_route_readded(ptfhost, rand_selected_dut, rand_unselected_dut, tbinfo): """ Verify traffic is equally distributed via loopback route """ pt_require('dualtor' in tbinfo['topo']['name'], "Only run on dualtor testbed") params = dualtor_info(ptfhost, rand_selected_dut, rand_unselected_dut, tbinfo) active_tor_loopback0 = params['active_tor_ip'] # Remove loopback routes and verify traffic is equally distributed remove_static_routes(rand_selected_dut, active_tor_loopback0) check_tunnel_balance(**params) # Readd loopback routes and verify traffic is equally distributed add_nexthop_routes(rand_selected_dut, active_tor_loopback0) check_tunnel_balance(**params)
def test_downstream_standby_mux_toggle_active( conn_graph_facts, ptfadapter, ptfhost, rand_selected_dut, rand_unselected_dut, tbinfo, require_mocked_dualtor, tunnel_traffic_monitor, vmhost, toggle_all_simulator_ports, tor_mux_intfs ): # set rand_selected_dut as standby and rand_unselected_dut to active tor test_params = dualtor_info(ptfhost, rand_selected_dut, rand_unselected_dut, tbinfo) server_ipv4 = test_params["target_server_ip"] random_dst_ip = "1.1.1.2" pkt, exp_pkt = build_packet_to_server(rand_selected_dut, ptfadapter, random_dst_ip) ptf_t1_intf = random.choice(get_t1_ptf_ports(rand_selected_dut, tbinfo)) def monitor_tunnel_and_server_traffic(torhost, expect_tunnel_traffic=True, expect_server_traffic=True): tunnel_monitor = tunnel_traffic_monitor(rand_selected_dut, existing=True) server_traffic_monitor = ServerTrafficMonitor( torhost, ptfhost, vmhost, tbinfo, test_params["selected_port"], conn_graph_facts, exp_pkt, existing=False, is_mocked=is_mocked_dualtor(tbinfo) ) tunnel_monitor.existing = expect_tunnel_traffic server_traffic_monitor.existing = expect_server_traffic with tunnel_monitor, server_traffic_monitor: testutils.send(ptfadapter, int(ptf_t1_intf.strip("eth")), pkt, count=10) logger.info("Stage 1: Verify Standby Forwarding") logger.info("Step 1.1: Add route to a nexthop which is a standby Neighbor") set_mux_state(rand_selected_dut, tbinfo, 'standby', tor_mux_intfs, toggle_all_simulator_ports) add_nexthop_routes(rand_selected_dut, random_dst_ip, nexthops=[server_ipv4]) logger.info("Step 1.2: Verify traffic to this route dst is forwarded to Active ToR and equally distributed") check_tunnel_balance(**test_params) monitor_tunnel_and_server_traffic(rand_selected_dut, expect_server_traffic=False, expect_tunnel_traffic=True) logger.info("Stage 2: Verify Active Forwarding") logger.info("Step 2.1: Simulate Mux state change to active") set_mux_state(rand_selected_dut, tbinfo, 'active', tor_mux_intfs, toggle_all_simulator_ports) logger.info("Step 2.2: Verify traffic to this route dst is forwarded directly to server") monitor_tunnel_and_server_traffic(rand_selected_dut, expect_server_traffic=True, expect_tunnel_traffic=False) logger.info("Stage 3: Verify Standby Forwarding Again") logger.info("Step 3.1: Simulate Mux state change to standby") set_mux_state(rand_selected_dut, tbinfo, 'standby', tor_mux_intfs, toggle_all_simulator_ports) logger.info("Step 3.2: Verify traffic to this route dst is now redirected back to Active ToR and equally distributed") monitor_tunnel_and_server_traffic(rand_selected_dut, expect_server_traffic=False, expect_tunnel_traffic=True) check_tunnel_balance(**test_params) remove_static_routes(rand_selected_dut, random_dst_ip)
def test_downstream_ecmp_nexthops(ptfadapter, rand_selected_dut, tbinfo, require_mocked_dualtor, toggle_all_simulator_ports, tor_mux_intfs, ip_version): nexthops_count = 4 set_mux_state(rand_selected_dut, tbinfo, 'active', tor_mux_intfs, toggle_all_simulator_ports) iface_server_map = get_interface_server_map(rand_selected_dut, nexthops_count) if ip_version == "ipv4": dst_server_addr = "1.1.1.2" interface_to_server = { intf: servers["server_ipv4"].split("/")[0] for intf, servers in iface_server_map.items() } elif ip_version == "ipv6": dst_server_addr = "fc10:2020::f" interface_to_server = { intf: servers["server_ipv6"].split("/")[0] for intf, servers in iface_server_map.items() } else: raise ValueError("Unknown IP version '%s'" % ip_version) nexthop_servers = list(interface_to_server.values()) nexthop_interfaces = list(interface_to_server.keys()) logging.info("Add route with four nexthops, where four muxes are active") add_nexthop_routes(rand_selected_dut, dst_server_addr, nexthops=nexthop_servers) try: logging.info( "Verify traffic to this route destination is distributed to four server ports" ) check_nexthops_balance(rand_selected_dut, ptfadapter, dst_server_addr, tbinfo, nexthop_interfaces, nexthops_count) ### Sequentially set four mux states to standby for index, interface in enumerate(nexthop_interfaces): uplink_ports_active = index + 1 logging.info("Simulate {} mux state change to Standby".format( nexthop_servers[index])) set_mux_state(rand_selected_dut, tbinfo, 'standby', [interface], toggle_all_simulator_ports) logging.info("Verify traffic to this route destination is distributed to"\ " {} server ports and {} tunnel nexthop".format( nexthops_count-uplink_ports_active, uplink_ports_active)) check_nexthops_balance( rand_selected_dut, ptfadapter, dst_server_addr, tbinfo, nexthop_interfaces[uplink_ports_active:nexthops_count], nexthops_count) ### Revert two mux states to active for index, interface in reversed(list(enumerate(nexthop_interfaces))): logging.info("Simulate {} mux state change back to Active".format( nexthop_servers[index])) set_mux_state(rand_selected_dut, tbinfo, 'active', [interface], toggle_all_simulator_ports) logging.info("Verify traffic to this route destination is distributed to"\ " {} server ports and {} tunnel nexthop".format(nexthops_count-index, index)) check_nexthops_balance(rand_selected_dut, ptfadapter, dst_server_addr, tbinfo, nexthop_interfaces[index:nexthops_count], nexthops_count) finally: ### Remove the nexthop route remove_static_routes(rand_selected_dut, dst_server_addr)