diff options
Diffstat (limited to 'yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py')
| -rw-r--r-- | yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py | 368 |
1 files changed, 361 insertions, 7 deletions
diff --git a/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py b/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py index 558a62935..1d37f8f6f 100644 --- a/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py +++ b/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py @@ -12,7 +12,9 @@ # See the License for the specific language governing permissions and # limitations under the License. +import ipaddress import logging +import six from yardstick.common import utils from yardstick.network_services.libs.ixia_libs.ixnet import ixnet_api @@ -25,6 +27,331 @@ LOG = logging.getLogger(__name__) WAIT_AFTER_CFG_LOAD = 10 WAIT_FOR_TRAFFIC = 30 +WAIT_PROTOCOLS_STARTED = 360 + + +class IxiaBasicScenario(object): + def __init__(self, client, context_cfg, ixia_cfg): + + self.client = client + self.context_cfg = context_cfg + self.ixia_cfg = ixia_cfg + + self._uplink_vports = None + self._downlink_vports = None + + def apply_config(self): + pass + + def create_traffic_model(self, traffic_profile=None): + # pylint: disable=unused-argument + vports = self.client.get_vports() + self._uplink_vports = vports[::2] + self._downlink_vports = vports[1::2] + self.client.create_traffic_model(self._uplink_vports, + self._downlink_vports) + + def run_protocols(self): + pass + + def stop_protocols(self): + pass + + +class IxiaPppoeClientScenario(object): + def __init__(self, client, context_cfg, ixia_cfg): + + self.client = client + + self._uplink_vports = None + self._downlink_vports = None + + self._access_topologies = [] + self._core_topologies = [] + + self._context_cfg = context_cfg + self._ixia_cfg = ixia_cfg + self.protocols = [] + self.device_groups = [] + + def apply_config(self): + vports = self.client.get_vports() + self._uplink_vports = vports[::2] + self._downlink_vports = vports[1::2] + self._fill_ixia_config() + self._apply_access_network_config() + self._apply_core_network_config() + + def create_traffic_model(self, traffic_profile): + endpoints_id_pairs = self._get_endpoints_src_dst_id_pairs( + traffic_profile.full_profile) + endpoints_obj_pairs = \ + self._get_endpoints_src_dst_obj_pairs(endpoints_id_pairs) + uplink_endpoints = endpoints_obj_pairs[::2] + downlink_endpoints = endpoints_obj_pairs[1::2] + self.client.create_ipv4_traffic_model(uplink_endpoints, + downlink_endpoints) + + def run_protocols(self): + LOG.info('PPPoE Scenario - Start Protocols') + self.client.start_protocols() + utils.wait_until_true( + lambda: self.client.is_protocols_running(self.protocols), + timeout=WAIT_PROTOCOLS_STARTED, sleep=2) + + def stop_protocols(self): + LOG.info('PPPoE Scenario - Stop Protocols') + self.client.stop_protocols() + + def _get_intf_addr(self, intf): + """Retrieve interface IP address and mask + + :param intf: could be the string which represents IP address + with mask (e.g 192.168.10.2/24) or a dictionary with the host + name and the port (e.g. {'tg__0': 'xe1'}) + :return: (tuple) pair of ip address and mask + """ + if isinstance(intf, six.string_types): + ip, mask = tuple(intf.split('/')) + return ip, int(mask) + + node_name, intf_name = next(iter(intf.items())) + node = self._context_cfg["nodes"].get(node_name, {}) + interface = node.get("interfaces", {})[intf_name] + ip = interface["local_ip"] + mask = interface["netmask"] + ipaddr = ipaddress.ip_network(six.text_type('{}/{}'.format(ip, mask)), + strict=False) + return ip, ipaddr.prefixlen + + @staticmethod + def _get_endpoints_src_dst_id_pairs(flows_params): + """Get list of flows src/dst port pairs + + Create list of flows src/dst port pairs based on traffic profile + flows data. Each uplink/downlink pair in traffic profile represents + specific flows between the pair of ports. + + Example ('port' key represents port on which flow will be created): + + Input flows data: + uplink_0: + ipv4: + id: 1 + port: xe0 + downlink_0: + ipv4: + id: 2 + port: xe1 + uplink_1: + ipv4: + id: 3 + port: xe2 + downlink_1: + ipv4: + id: 4 + port: xe3 + + Result list: ['xe0', 'xe1', 'xe2', 'xe3'] + + Result list means that the following flows pairs will be created: + - uplink 0: port xe0 <-> port xe1 + - downlink 0: port xe1 <-> port xe0 + - uplink 1: port xe2 <-> port xe3 + - downlink 1: port xe3 <-> port xe2 + + :param flows_params: ordered dict of traffic profile flows params + :return: (list) list of flows src/dst ports + """ + if len(flows_params) % 2: + raise RuntimeError('Number of uplink/downlink pairs' + ' in traffic profile is not equal') + endpoint_pairs = [] + for flow in flows_params: + port = flows_params[flow]['ipv4'].get('port') + if port is None: + continue + endpoint_pairs.append(port) + return endpoint_pairs + + def _get_endpoints_src_dst_obj_pairs(self, endpoints_id_pairs): + """Create list of uplink/downlink device groups pairs + + Based on traffic profile options, create list of uplink/downlink + device groups pairs between which flow groups will be created: + + 1. In case uplink/downlink flows in traffic profile doesn't have + specified 'port' key, flows will be created between each device + group on access port and device group on corresponding core port. + E.g.: + Device groups created on access port xe0: dg1, dg2, dg3 + Device groups created on core port xe1: dg4 + Flows will be created between: + dg1 -> dg4 + dg4 -> dg1 + dg2 -> dg4 + dg4 -> dg2 + dg3 -> dg4 + dg4 -> dg3 + + 2. In case uplink/downlink flows in traffic profile have specified + 'port' key, flows will be created between device groups on this + port. + E.g., for the following traffic profile + uplink_0: + port: xe0 + downlink_0: + port: xe1 + uplink_1: + port: xe0 + downlink_0: + port: xe3 + Flows will be created between: + Port xe0 (dg1) -> Port xe1 (dg1) + Port xe1 (dg1) -> Port xe0 (dg1) + Port xe0 (dg2) -> Port xe3 (dg1) + Port xe3 (dg3) -> Port xe0 (dg1) + + :param endpoints_id_pairs: (list) List of uplink/downlink flows ports + pairs + :return: (list) list of uplink/downlink device groups descriptors pairs + """ + pppoe = self._ixia_cfg['pppoe_client'] + sessions_per_port = pppoe['sessions_per_port'] + sessions_per_svlan = pppoe['sessions_per_svlan'] + svlan_count = int(sessions_per_port / sessions_per_svlan) + + uplink_ports = [p['tg__0'] for p in self._ixia_cfg['flow']['src_ip']] + downlink_ports = [p['tg__0'] for p in self._ixia_cfg['flow']['dst_ip']] + uplink_port_topology_map = zip(uplink_ports, self._access_topologies) + downlink_port_topology_map = zip(downlink_ports, self._core_topologies) + + port_to_dev_group_mapping = {} + for port, topology in uplink_port_topology_map: + topology_dgs = self.client.get_topology_device_groups(topology) + port_to_dev_group_mapping[port] = topology_dgs + for port, topology in downlink_port_topology_map: + topology_dgs = self.client.get_topology_device_groups(topology) + port_to_dev_group_mapping[port] = topology_dgs + + uplink_endpoints = endpoints_id_pairs[::2] + downlink_endpoints = endpoints_id_pairs[1::2] + + uplink_dev_groups = [] + group_up = [uplink_endpoints[i:i + svlan_count] + for i in range(0, len(uplink_endpoints), svlan_count)] + + for group in group_up: + for i, port in enumerate(group): + uplink_dev_groups.append(port_to_dev_group_mapping[port][i]) + + downlink_dev_groups = [] + for port in downlink_endpoints: + downlink_dev_groups.append(port_to_dev_group_mapping[port][0]) + + endpoint_obj_pairs = [] + [endpoint_obj_pairs.extend([up, down]) + for up, down in zip(uplink_dev_groups, downlink_dev_groups)] + + if not endpoint_obj_pairs: + for up, down in zip(uplink_ports, downlink_ports): + uplink_dev_groups = port_to_dev_group_mapping[up] + downlink_dev_groups = \ + port_to_dev_group_mapping[down] * len(uplink_dev_groups) + [endpoint_obj_pairs.extend(list(i)) + for i in zip(uplink_dev_groups, downlink_dev_groups)] + return endpoint_obj_pairs + + def _fill_ixia_config(self): + pppoe = self._ixia_cfg["pppoe_client"] + ipv4 = self._ixia_cfg["ipv4_client"] + + _ip = [self._get_intf_addr(intf)[0] for intf in pppoe["ip"]] + self._ixia_cfg["pppoe_client"]["ip"] = _ip + + _ip = [self._get_intf_addr(intf)[0] for intf in ipv4["gateway_ip"]] + self._ixia_cfg["ipv4_client"]["gateway_ip"] = _ip + + addrs = [self._get_intf_addr(intf) for intf in ipv4["ip"]] + _ip = [addr[0] for addr in addrs] + _prefix = [addr[1] for addr in addrs] + + self._ixia_cfg["ipv4_client"]["ip"] = _ip + self._ixia_cfg["ipv4_client"]["prefix"] = _prefix + + def _apply_access_network_config(self): + pppoe = self._ixia_cfg["pppoe_client"] + sessions_per_port = pppoe['sessions_per_port'] + sessions_per_svlan = pppoe['sessions_per_svlan'] + svlan_count = int(sessions_per_port / sessions_per_svlan) + + # add topology per uplink port (access network) + for access_tp_id, vport in enumerate(self._uplink_vports): + name = 'Topology access {}'.format(access_tp_id) + tp = self.client.add_topology(name, vport) + self._access_topologies.append(tp) + # add device group per svlan + for dg_id in range(svlan_count): + s_vlan_id = int(pppoe['s_vlan']) + dg_id + access_tp_id * svlan_count + s_vlan = ixnet_api.Vlan(vlan_id=s_vlan_id) + c_vlan = ixnet_api.Vlan(vlan_id=pppoe['c_vlan'], vlan_id_step=1) + name = 'SVLAN {}'.format(s_vlan_id) + dg = self.client.add_device_group(tp, name, sessions_per_svlan) + self.device_groups.append(dg) + # add ethernet layer to device group + ethernet = self.client.add_ethernet(dg, 'Ethernet') + self.protocols.append(ethernet) + self.client.add_vlans(ethernet, [s_vlan, c_vlan]) + # add ppp over ethernet + if 'pap_user' in pppoe: + ppp = self.client.add_pppox_client(ethernet, 'pap', + pppoe['pap_user'], + pppoe['pap_password']) + else: + ppp = self.client.add_pppox_client(ethernet, 'chap', + pppoe['chap_user'], + pppoe['chap_password']) + self.protocols.append(ppp) + + def _apply_core_network_config(self): + ipv4 = self._ixia_cfg["ipv4_client"] + sessions_per_port = ipv4['sessions_per_port'] + sessions_per_vlan = ipv4['sessions_per_vlan'] + vlan_count = int(sessions_per_port / sessions_per_vlan) + + # add topology per downlink port (core network) + for core_tp_id, vport in enumerate(self._downlink_vports): + name = 'Topology core {}'.format(core_tp_id) + tp = self.client.add_topology(name, vport) + self._core_topologies.append(tp) + # add device group per vlan + for dg_id in range(vlan_count): + name = 'Core port {}'.format(core_tp_id) + dg = self.client.add_device_group(tp, name, sessions_per_vlan) + self.device_groups.append(dg) + # add ethernet layer to device group + ethernet = self.client.add_ethernet(dg, 'Ethernet') + self.protocols.append(ethernet) + if 'vlan' in ipv4: + vlan_id = int(ipv4['vlan']) + dg_id + core_tp_id * vlan_count + vlan = ixnet_api.Vlan(vlan_id=vlan_id) + self.client.add_vlans(ethernet, [vlan]) + # add ipv4 layer + gw_ip = ipv4['gateway_ip'][core_tp_id] + # use gw addr to generate ip addr from the same network + ip_addr = ipaddress.IPv4Address(gw_ip) + 1 + ipv4_obj = self.client.add_ipv4(ethernet, name='ipv4', + addr=ip_addr, + addr_step='0.0.0.1', + prefix=ipv4['prefix'][core_tp_id], + gateway=gw_ip) + self.protocols.append(ipv4_obj) + if ipv4.get("bgp"): + bgp_peer_obj = self.client.add_bgp(ipv4_obj, + dut_ip=ipv4["bgp"]["dut_ip"], + local_as=ipv4["bgp"]["as_number"], + bgp_type=ipv4["bgp"].get("bgp_type")) + self.protocols.append(bgp_peer_obj) class IxiaRfc2544Helper(Rfc2544ResourceHelper): @@ -41,6 +368,11 @@ class IxiaResourceHelper(ClientResourceHelper): super(IxiaResourceHelper, self).__init__(setup_helper) self.scenario_helper = setup_helper.scenario_helper + self._ixia_scenarios = { + "IxiaBasic": IxiaBasicScenario, + "IxiaPppoeClient": IxiaPppoeClientScenario, + } + self.client = ixnet_api.IxNextgen() if rfc_helper_type is None: @@ -49,6 +381,8 @@ class IxiaResourceHelper(ClientResourceHelper): self.rfc_helper = rfc_helper_type(self.scenario_helper) self.uplink_ports = None self.downlink_ports = None + self.context_cfg = None + self._ix_scenario = None self._connect() def _connect(self, client=None): @@ -57,7 +391,12 @@ class IxiaResourceHelper(ClientResourceHelper): def get_stats(self, *args, **kwargs): return self.client.get_statistics() + def setup(self): + super(IxiaResourceHelper, self).setup() + self._init_ix_scenario() + def stop_collect(self): + self._ix_scenario.stop_protocols() self._terminated.value = 1 def generate_samples(self, ports, duration): @@ -92,14 +431,24 @@ class IxiaResourceHelper(ClientResourceHelper): return samples - def _initialize_client(self): + def _init_ix_scenario(self): + ixia_config = self.scenario_helper.scenario_cfg.get('ixia_config', 'IxiaBasic') + + if ixia_config in self._ixia_scenarios: + scenario_type = self._ixia_scenarios[ixia_config] + + self._ix_scenario = scenario_type(self.client, self.context_cfg, + self.scenario_helper.scenario_cfg['options']) + else: + raise RuntimeError( + "IXIA config type '{}' not supported".format(ixia_config)) + + def _initialize_client(self, traffic_profile): """Initialize the IXIA IxNetwork client and configure the server""" self.client.clear_config() self.client.assign_ports() - vports = self.client.get_vports() - uplink_vports = vports[::2] - downlink_vports = vports[1::2] - self.client.create_traffic_model(uplink_vports, downlink_vports) + self._ix_scenario.apply_config() + self._ix_scenario.create_traffic_model(traffic_profile) def run_traffic(self, traffic_profile, *args): if self._terminated.value: @@ -107,10 +456,12 @@ class IxiaResourceHelper(ClientResourceHelper): min_tol = self.rfc_helper.tolerance_low max_tol = self.rfc_helper.tolerance_high + precision = self.rfc_helper.tolerance_precision default = "00:00:00:00:00:00" self._build_ports() - self._initialize_client() + traffic_profile.update_traffic_profile(self) + self._initialize_client(traffic_profile) mac = {} for port_name in self.vnfd_helper.port_pairs.all_ports: @@ -122,6 +473,8 @@ class IxiaResourceHelper(ClientResourceHelper): mac["src_mac_{}".format(port_num)] = virt_intf.get("local_mac", default) mac["dst_mac_{}".format(port_num)] = virt_intf.get("dst_mac", default) + self._ix_scenario.run_protocols() + try: while not self._terminated.value: first_run = traffic_profile.execute_traffic( @@ -134,7 +487,7 @@ class IxiaResourceHelper(ClientResourceHelper): traffic_profile.config.duration) completed, samples = traffic_profile.get_drop_percentage( - samples, min_tol, max_tol, first_run=first_run) + samples, min_tol, max_tol, precision, first_run=first_run) self._queue.put(samples) if completed: @@ -143,6 +496,7 @@ class IxiaResourceHelper(ClientResourceHelper): except Exception: # pylint: disable=broad-except LOG.exception('Run Traffic terminated') + self._ix_scenario.stop_protocols() self._terminated.value = 1 def collect_kpi(self): |