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# Copyright (c) 2019 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

*** Settings ***
| Resource | resources/libraries/robot/shared/default.robot
| Resource | resources/libraries/robot/l2/tagging.robot
| ...
| Force Tags | 3_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDR
| ... | NIC_Intel-X710 | L2XCFWD | BASE | DOT1AD
| ...
| Suite Setup | Setup suite single link | performance
| Suite Teardown | Tear down suite | performance
| Test Setup | Setup test
| Test Teardown | Tear down test | performance
| ...
| Test Template | Local Template
| ...
| Documentation | *RFC2544: Pkt throughput L2XC with 802.1ad test cases*
| ...
| ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
| ... | with single links between nodes.
| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 xconnect.
| ... | 802.1ad tagging is applied on link between DUT1 and DUT2 with inner 4B
| ... | vlan tag (id=100) and outer 4B vlan tag (id=200).
| ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 cross-
| ... | connect. DUT1 and DUT2 tested with ${nic_name}.\
| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
| ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
| ... | of packets transmitted. NDR and PDR are discovered for different\
| ... | Ethernet L2 frame sizes using MLRsearch library.\
| ... | Test packets are generated by TG on
| ... | links to DUTs. TG traffic profile contains two L3 flow-groups
| ... | (flow-group per direction, 253 flows per flow-group) with all packets
| ... | containing Ethernet header, IPv4 header with IP protocol=61 and
| ... | static payload. MAC addresses are matching MAC addresses of the TG
| ... | node interfaces.
| ... | *[Ref] Applicable standard specifications:* RFC2544.

*** Variables ***
| @{plugins_to_enable}= | dpdk_plugin.so
| ${osi_layer}= | L2
| ${nic_name}= | Intel-X710
| ${overhead}= | ${8}
| ${subid}= | 10
| ${outer_vlan_id}= | 100
| ${inner_vlan_id}= | 200
| ${type_subif}= | two_tags
| ${tag_rewrite}= | pop-2
# Traffic profile:
| ${traffic_profile}= | trex-sl-3n-ethip4-ip4src254

*** Keywords ***
| Local Template
| | [Documentation]
| | ... | [Cfg] DUT runs L2XC forwarding config.
| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
| | ... | [Ver] Measure NDR and PDR values using MLRsearch algorithm.\
| | ...
| | ... | *Arguments:*
| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
| | ... | Type: integer, string
| | ... | - phy_cores - Number of physical cores. Type: integer
| | ... | - rxq - Number of RX queues, default value: ${None}. Type: integer
| | ...
| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
| | ...
| | Set Test Variable | \${frame_size}
| | ...
| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
| | And Add PCI devices to all DUTs
| | And Set Max Rate And Jumbo And Handle Multi Seg
| | And Apply startup configuration on all VPP DUTs
| | And Set interfaces in path up
| | When Initialize VLAN sub-interfaces in 3-node circular topology
| | ... | ${dut1} | ${dut1_if2} | ${dut2} | ${dut2_if1} | ${subid}
| | ... | ${outer_vlan_id} | ${inner_vlan_id} | ${type_subif}
| | And Configure L2 tag rewrite method on interfaces
| | ... | ${dut1} | ${subif_index_1} | ${dut2} | ${subif_index_2}
| | ... | ${tag_rewrite}
| | And Configure L2XC
| | ... | ${dut1} | ${dut1_if1} | ${subif_index_1}
| | And Configure L2XC
| | ... | ${dut2} | ${dut2_if2} | ${subif_index_2}
| | Then Find NDR and PDR intervals using optimized search

*** Test Cases ***
| tc01-64B-1c-dot1ad-l2xcbase-ndrpdr
| | [Tags] | 64B | 1C
| | frame_size=${64} | phy_cores=${1}

| tc02-64B-2c-dot1ad-l2xcbase-ndrpdr
| | [Tags] | 64B | 2C
| | frame_size=${64} | phy_cores=${2}

| tc03-64B-4c-dot1ad-l2xcbase-ndrpdr
| | [Tags] | 64B | 4C
| | frame_size=${64} | phy_cores=${4}

| tc04-1518B-1c-dot1ad-l2xcbase-ndrpdr
| | [Tags] | 1518B | 1C
| | frame_size=${1518} | phy_cores=${1}

| tc05-1518B-2c-dot1ad-l2xcbase-ndrpdr
| | [Tags] | 1518B | 2C
| | frame_size=${1518} | phy_cores=${2}

| tc06-1518B-4c-dot1ad-l2xcbase-ndrpdr
| | [Tags] | 1518B | 4C
| | frame_size=${1518} | phy_cores=${4}

| tc07-9000B-1c-dot1ad-l2xcbase-ndrpdr
| | [Tags] | 9000B | 1C
| | frame_size=${9000} | phy_cores=${1}

| tc08-9000B-2c-dot1ad-l2xcbase-ndrpdr
| | [Tags] | 9000B | 2C
| | frame_size=${9000} | phy_cores=${2}

| tc09-9000B-4c-dot1ad-l2xcbase-ndrpdr
| | [Tags] | 9000B | 4C
| | frame_size=${9000} | phy_cores=${4}

| tc10-IMIX-1c-dot1ad-l2xcbase-ndrpdr
| | [Tags] | IMIX | 1C
| | frame_size=IMIX_v4_1 | phy_cores=${1}

| tc11-IMIX-2c-dot1ad-l2xcbase-ndrpdr
| | [Tags] | IMIX | 2C
| | frame_size=IMIX_v4_1 | phy_cores=${2}

| tc12-IMIX-4c-dot1ad-l2xcbase-ndrpdr
| | [Tags] | IMIX | 4C
| | frame_size=IMIX_v4_1 | phy_cores=${4}
).tearDownClass() raise def setUp(self): """ Clear trace and packet infos before running each test. """ super(TestIP6VrfMultiInst, self).setUp() self.reset_packet_infos() def tearDown(self): """ Show various debug prints after each test. """ super(TestIP6VrfMultiInst, self).tearDown() if not self.vpp_dead: self.logger.info(self.vapi.ppcli("show ip6 fib")) self.logger.info(self.vapi.ppcli("show ip6 neighbors")) def create_vrf_and_assign_interfaces(self, count, start=1): """ Create required number of FIB tables / VRFs, put 3 l2-pg interfaces to every FIB table / VRF. :param int count: Number of FIB tables / VRFs to be created. :param int start: Starting number of the FIB table / VRF ID. \ (Default value = 1) """ for i in range(count): vrf_id = i + start pg_if = self.pg_if_by_vrf_id[vrf_id][0] dest_addr = pg_if.remote_hosts[0].ip6n dest_addr_len = 64 self.vapi.ip_table_add_del(vrf_id, is_add=1, is_ipv6=1) self.vapi.ip_add_del_route( dest_addr, dest_addr_len, pg_if.local_ip6n, is_ipv6=1, table_id=vrf_id, is_multipath=1) self.logger.info("IPv6 VRF ID %d created" % vrf_id) if vrf_id not in self.vrf_list: self.vrf_list.append(vrf_id) if vrf_id in self.vrf_reset_list: self.vrf_reset_list.remove(vrf_id) for j in range(self.pg_ifs_per_vrf): pg_if = self.pg_if_by_vrf_id[vrf_id][j] pg_if.set_table_ip6(vrf_id) self.logger.info("pg-interface %s added to IPv6 VRF ID %d" % (pg_if.name, vrf_id)) if pg_if not in self.pg_in_vrf: self.pg_in_vrf.append(pg_if) if pg_if in self.pg_not_in_vrf: self.pg_not_in_vrf.remove(pg_if) pg_if.config_ip6() pg_if.disable_ipv6_ra() pg_if.configure_ipv6_neighbors() self.logger.debug(self.vapi.ppcli("show ip6 fib")) self.logger.debug(self.vapi.ppcli("show ip6 neighbors")) def reset_vrf(self, vrf_id): """ Reset required FIB table / VRF. :param int vrf_id: The FIB table / VRF ID to be reset. """ # self.vapi.reset_vrf(vrf_id, is_ipv6=1) self.vapi.reset_fib(vrf_id, is_ipv6=1) if vrf_id in self.vrf_list: self.vrf_list.remove(vrf_id) if vrf_id not in self.vrf_reset_list: self.vrf_reset_list.append(vrf_id) for j in range(self.pg_ifs_per_vrf): pg_if = self.pg_if_by_vrf_id[vrf_id][j] pg_if.unconfig_ip6() if pg_if in self.pg_in_vrf: self.pg_in_vrf.remove(pg_if) if pg_if not in self.pg_not_in_vrf: self.pg_not_in_vrf.append(pg_if) self.logger.info("IPv6 VRF ID %d reset" % vrf_id) self.logger.debug(self.vapi.ppcli("show ip6 fib")) self.logger.debug(self.vapi.ppcli("show ip6 neighbors")) self.vapi.ip_table_add_del(vrf_id, is_add=0, is_ipv6=1) def create_stream(self, src_if, packet_sizes): """ Create input packet stream for defined interface using hosts list. :param object src_if: Interface to create packet stream for. :param list packet_sizes: List of required packet sizes. :return: Stream of packets. """ pkts = [] src_hosts = src_if.remote_hosts for dst_if in self.flows[src_if]: for dst_host in dst_if.remote_hosts: src_host = random.choice(src_hosts) pkt_info = self.create_packet_info(src_if, dst_if) payload = self.info_to_payload(pkt_info) p = (Ether(dst=src_if.local_mac, src=src_host.mac) / IPv6(src=src_host.ip6, dst=dst_host.ip6) / UDP(sport=1234, dport=1234) / Raw(payload)) pkt_info.data = p.copy() size = random.choice(packet_sizes) self.extend_packet(p, size) pkts.append(p) self.logger.debug("Input stream created for port %s. Length: %u pkt(s)" % (src_if.name, len(pkts))) return pkts def verify_capture(self, pg_if, capture): """ Verify captured input packet stream for defined interface. :param object pg_if: Interface to verify captured packet stream for. :param list capture: Captured packet stream. """ last_info = dict() for i in self.pg_interfaces: last_info[i.sw_if_index] = None dst_sw_if_index = pg_if.sw_if_index for packet in capture: try: ip = packet[IPv6] udp = packet[UDP] payload_info = self.payload_to_info(str(packet[Raw])) packet_index = payload_info.index self.assertEqual(payload_info.dst, dst_sw_if_index) self.logger.debug("Got packet on port %s: src=%u (id=%u)" % (pg_if.name, payload_info.src, packet_index)) next_info = self.get_next_packet_info_for_interface2( payload_info.src, dst_sw_if_index, last_info[payload_info.src]) last_info[payload_info.src] = next_info self.assertIsNotNone(next_info) self.assertEqual(packet_index, next_info.index) saved_packet = next_info.data # Check standard fields self.assertEqual(ip.src, saved_packet[IPv6].src) self.assertEqual(ip.dst, saved_packet[IPv6].dst) self.assertEqual(udp.sport, saved_packet[UDP].sport) self.assertEqual(udp.dport, saved_packet[UDP].dport) except: self.logger.error(ppp("Unexpected or invalid packet:", packet)) raise for i in self.pg_interfaces: remaining_packet = self.get_next_packet_info_for_interface2( i, dst_sw_if_index, last_info[i.sw_if_index]) self.assertIsNone( remaining_packet, "Port %u: Packet expected from source %u didn't arrive" % (dst_sw_if_index, i.sw_if_index)) def verify_vrf(self, vrf_id): """ Check if the FIB table / VRF ID is configured. :param int vrf_id: The FIB table / VRF ID to be verified. :return: 1 if the FIB table / VRF ID is configured, otherwise return 0. """ ip6_fib_dump = self.vapi.ip6_fib_dump() vrf_exist = False vrf_count = 0 for ip6_fib_details in ip6_fib_dump: if ip6_fib_details.table_id == vrf_id: if not vrf_exist: vrf_exist = True addr = inet_ntop(socket.AF_INET6, ip6_fib_details.address) addrtype = in6_getAddrType(addr) vrf_count += 1 if addrtype == IPV6_ADDR_UNICAST else 0 if not vrf_exist and vrf_count == 0: self.logger.info("IPv6 VRF ID %d is not configured" % vrf_id) return VRF_NOT_CONFIGURED elif vrf_exist and vrf_count == 0: self.logger.info("IPv6 VRF ID %d has been reset" % vrf_id) return VRF_RESET else: self.logger.info("IPv6 VRF ID %d is configured" % vrf_id) return VRF_CONFIGURED def run_verify_test(self): """ Create packet streams for all configured l2-pg interfaces, send all \ prepared packet streams and verify that: - all packets received correctly on all pg-l2 interfaces assigned to bridge domains - no packet received on all pg-l2 interfaces not assigned to bridge domains :raise RuntimeError: If no packet captured on l2-pg interface assigned to the bridge domain or if any packet is captured on l2-pg interface not assigned to the bridge domain. """ # Test # Create incoming packet streams for packet-generator interfaces for pg_if in self.pg_interfaces: pkts = self.create_stream(pg_if, self.pg_if_packet_sizes) pg_if.add_stream(pkts) # Enable packet capture and start packet sending self.pg_enable_capture(self.pg_interfaces) self.pg_start() # Verify # Verify outgoing packet streams per packet-generator interface for pg_if in self.pg_interfaces: if pg_if in self.pg_in_vrf: capture = pg_if.get_capture(remark="interface is in VRF") self.verify_capture(pg_if, capture) elif pg_if in self.pg_not_in_vrf: pg_if.assert_nothing_captured(remark="interface is not in VRF", filter_out_fn=is_ipv6_misc_ext) self.logger.debug("No capture for interface %s" % pg_if.name) else: raise Exception("Unknown interface: %s" % pg_if.name) def test_ip6_vrf_01(self): """ IP6 VRF Multi-instance test 1 - create 4 VRFs """ # Config 1 # Create 4 VRFs self.create_vrf_and_assign_interfaces(4) # Verify 1 for vrf_id in self.vrf_list: self.assertEqual(self.verify_vrf(vrf_id), VRF_CONFIGURED) # Test 1 self.run_verify_test() def test_ip6_vrf_02(self): """ IP6 VRF Multi-instance test 2 - reset 2 VRFs """ # Config 2 # Delete 2 VRFs self.reset_vrf(1) self.reset_vrf(2) # Verify 2 for vrf_id in self.vrf_reset_list: self.assertEqual(self.verify_vrf(vrf_id), VRF_RESET) for vrf_id in self.vrf_list: self.assertEqual(self.verify_vrf(vrf_id), VRF_CONFIGURED) # Test 2 self.run_verify_test() # Reset routes learned from ICMPv6 Neighbor Discovery for vrf_id in self.vrf_reset_list: self.reset_vrf(vrf_id) def test_ip6_vrf_03(self): """ IP6 VRF Multi-instance 3 - add 2 VRFs """ # Config 3 # Add 1 of reset VRFs and 1 new VRF self.create_vrf_and_assign_interfaces(1) self.create_vrf_and_assign_interfaces(1, start=5) # Verify 3 for vrf_id in self.vrf_reset_list: self.assertEqual(self.verify_vrf(vrf_id), VRF_RESET) for vrf_id in self.vrf_list: self.assertEqual(self.verify_vrf(vrf_id), VRF_CONFIGURED) # Test 3 self.run_verify_test() # Reset routes learned from ICMPv6 Neighbor Discovery for vrf_id in self.vrf_reset_list: self.reset_vrf(vrf_id) def test_ip6_vrf_04(self): """ IP6 VRF Multi-instance test 4 - reset 4 VRFs """ # Config 4 # Reset all VRFs (i.e. no VRF except VRF=0 created) for i in range(len(self.vrf_list)): self.reset_vrf(self.vrf_list[0]) # Verify 4 for vrf_id in self.vrf_reset_list: self.assertEqual(self.verify_vrf(vrf_id), VRF_RESET) for vrf_id in self.vrf_list: self.assertEqual(self.verify_vrf(vrf_id), VRF_CONFIGURED) # Test 4 self.run_verify_test() if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)