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 | 212 |
1 files changed, 208 insertions, 4 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 89f8194c0..4c13112be 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 +27,183 @@ 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): + 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 = [] + + 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): + self.client.create_ipv4_traffic_model(self._access_topologies, + self._core_topologies) + + 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 + + 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) + # 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) + # 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 +220,11 @@ 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 +233,8 @@ 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 +243,12 @@ 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 +283,24 @@ class IxiaResourceHelper(ClientResourceHelper): return samples + 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): """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() def run_traffic(self, traffic_profile, *args): if self._terminated.value: @@ -123,6 +324,8 @@ 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( @@ -144,6 +347,7 @@ 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): |