from framework import VppTestCase, VppTestRunner
from util import Host, ppp
+from vpp_papi import mac_pton
+
+# from src/vnet/l2/l2_fib.h
+MAC_EVENT_ACTION_ADD = 0
+MAC_EVENT_ACTION_DELETE = 1
+MAC_EVENT_ACTION_MOVE = 2
class TestL2fib(VppTestCase):
""" L2 FIB Test Case """
+ @classmethod
+ def bd_ifs(cls, bd_id):
+ return range((bd_id - 1) * cls.n_ifs_per_bd,
+ bd_id * cls.n_ifs_per_bd - 1)
+
@classmethod
def setUpClass(cls):
"""
variables and configure VPP.
:var int bd_id: Bridge domain ID.
- :var int mac_entries_count: Number of MAC entries for bridge-domain.
"""
super(TestL2fib, cls).setUpClass()
- # Test variables
- cls.bd_id = 1
- cls.mac_entries_count = 200
-
try:
- # Create 4 pg interfaces
- cls.create_pg_interfaces(range(4))
+ n_brs = cls.n_brs = range(1, 3)
+ cls.n_ifs_per_bd = 4
+ n_ifs = range(cls.n_ifs_per_bd * len(cls.n_brs))
+ # Create pg interfaces
+ cls.create_pg_interfaces(n_ifs)
- # Packet flows mapping pg0 -> pg1, pg2, pg3 etc.
cls.flows = dict()
- cls.flows[cls.pg0] = [cls.pg1, cls.pg2, cls.pg3]
- cls.flows[cls.pg1] = [cls.pg0, cls.pg2, cls.pg3]
- cls.flows[cls.pg2] = [cls.pg0, cls.pg1, cls.pg3]
- cls.flows[cls.pg3] = [cls.pg0, cls.pg1, cls.pg2]
+ for bd_id in n_brs:
+ # Packet flows mapping pg0 -> pg1, pg2, pg3 etc.
+ ifs = cls.bd_ifs(bd_id)
+ for j in ifs:
+ cls.flows[cls.pg_interfaces[j]] = [
+ cls.pg_interfaces[x] for x in ifs if x != j]
# Packet sizes
cls.pg_if_packet_sizes = [64, 512, 1518, 9018]
- # Create BD with MAC learning and unknown unicast flooding disabled
- # and put interfaces to this BD
- cls.vapi.bridge_domain_add_del(bd_id=cls.bd_id, uu_flood=0, learn=0)
- for pg_if in cls.pg_interfaces:
- cls.vapi.sw_interface_set_l2_bridge(pg_if.sw_if_index,
- bd_id=cls.bd_id)
+ for bd_id in n_brs:
+ # Create BD with MAC learning and unknown unicast flooding
+ # disabled and put interfaces to this BD
+ cls.vapi.bridge_domain_add_del(
+ bd_id=bd_id, uu_flood=0, learn=0)
+ ifs = [cls.pg_interfaces[i] for i in cls.bd_ifs(bd_id)]
+ for pg_if in ifs:
+ cls.vapi.sw_interface_set_l2_bridge(pg_if.sw_if_index,
+ bd_id=bd_id)
# Set up all interfaces
for i in cls.pg_interfaces:
i.admin_up()
-
- # Mapping between packet-generator index and lists of test hosts
- cls.hosts_by_pg_idx = dict()
- for pg_if in cls.pg_interfaces:
- cls.hosts_by_pg_idx[pg_if.sw_if_index] = []
-
- # Create list of deleted hosts
- cls.deleted_hosts_by_pg_idx = dict()
- for pg_if in cls.pg_interfaces:
- cls.deleted_hosts_by_pg_idx[pg_if.sw_if_index] = []
-
except Exception:
super(TestL2fib, cls).tearDownClass()
raise
def setUp(self):
- """
- Clear trace and packet infos before running each test.
- """
super(TestL2fib, self).setUp()
- self.packet_infos = {}
+ self.reset_packet_infos()
def tearDown(self):
"""
super(TestL2fib, self).tearDown()
if not self.vpp_dead:
self.logger.info(self.vapi.ppcli("show l2fib verbose"))
- self.logger.info(self.vapi.ppcli("show bridge-domain %s detail"
- % self.bd_id))
+ for bd_id in self.n_brs:
+ self.logger.info(self.vapi.ppcli("show bridge-domain %s detail"
+ % bd_id))
- def create_hosts(self, count, start=0):
+ def create_hosts(self, n_hosts_per_if, subnet):
"""
Create required number of host MAC addresses and distribute them among
interfaces. Create host IPv4 address for every host MAC address.
- :param int count: Number of hosts to create MAC/IPv4 addresses for.
- :param int start: Number to start numbering from.
+ :param int n_hosts_per_if: Number of per interface hosts to
+ create MAC/IPv4 addresses for.
"""
- n_int = len(self.pg_interfaces)
- macs_per_if = count / n_int
- i = -1
+
+ hosts = dict()
+ for pg_if in self.pg_interfaces:
+ swif = pg_if.sw_if_index
+
+ def mac(j): return "00:00:%02x:ff:%02x:%02x" % (subnet, swif, j)
+
+ def ip(j): return "172.%02u.1%02x.%u" % (subnet, swif, j)
+
+ def h(j): return Host(mac(j), ip(j))
+ hosts[swif] = [h(j) for j in range(n_hosts_per_if)]
+ return hosts
+
+ def split_hosts(self, hosts, n):
+ splits = dict()
for pg_if in self.pg_interfaces:
- i += 1
- start_nr = macs_per_if * i + start
- end_nr = count + start if i == (n_int - 1) \
- else macs_per_if * (i + 1) + start
- hosts = self.hosts_by_pg_idx[pg_if.sw_if_index]
- for j in range(start_nr, end_nr):
- host = Host(
- "00:00:00:ff:%02x:%02x" % (pg_if.sw_if_index, j),
- "172.17.1%02x.%u" % (pg_if.sw_if_index, j))
- hosts.append(host)
-
- def config_l2_fib_entries(self, count, start=0):
+ swif = pg_if.sw_if_index
+ splits[swif] = hosts[swif][:n]
+ hosts[swif] = hosts[swif][n:]
+ return splits
+
+ def learn_hosts(self, bd_id, hosts):
"""
- Create required number of L2 FIB entries.
+ Create and send per interface L2 MAC broadcast packet stream to
+ let the bridge domain learn these MAC addresses.
+ :param int bd_id: BD to teach
+ :param dict hosts: dict of hosts per interface
+ """
+ self.vapi.bridge_flags(bd_id, 1, 1)
+ ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)]
+ for pg_if in ifs:
+ swif = pg_if.sw_if_index
+ packets = [Ether(dst="ff:ff:ff:ff:ff:ff", src=host.mac)
+ for host in hosts[swif]]
+ pg_if.add_stream(packets)
+ self.logger.info("Sending broadcast eth frames for MAC learning")
+ self.pg_start()
+
+ def config_l2_fib_entries(self, bd_id, hosts):
+ """
+ Config required number of L2 FIB entries.
+
+ :param int bd_id: BD's id
:param int count: Number of L2 FIB entries to be created.
:param int start: Starting index of the host list. (Default value = 0)
"""
- n_int = len(self.pg_interfaces)
- percent = 0
- counter = 0.0
- for pg_if in self.pg_interfaces:
- end_nr = start + count / n_int
- for j in range(start, end_nr):
- host = self.hosts_by_pg_idx[pg_if.sw_if_index][j]
- self.vapi.l2fib_add_del(host.mac, self.bd_id, pg_if.sw_if_index,
- static_mac=1)
- counter += 1
- percentage = counter / count * 100
- if percentage > percent:
- self.logger.info("Configure %d L2 FIB entries .. %d%% done"
- % (count, percentage))
- percent += 1
- self.logger.info(self.vapi.ppcli("show l2fib"))
-
- def delete_l2_fib_entry(self, count):
+ ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)]
+ for pg_if in ifs:
+ swif = pg_if.sw_if_index
+ for host in hosts[swif]:
+ self.vapi.l2fib_add_del(
+ mac_pton(host.mac), bd_id, swif, static_mac=1)
+
+ def delete_l2_fib_entry(self, bd_id, hosts):
"""
Delete required number of L2 FIB entries.
:param int count: Number of L2 FIB entries to be created.
"""
- n_int = len(self.pg_interfaces)
- percent = 0
- counter = 0.0
- for pg_if in self.pg_interfaces:
- for j in range(count / n_int):
- host = self.hosts_by_pg_idx[pg_if.sw_if_index][0]
- self.vapi.l2fib_add_del(host.mac, self.bd_id, pg_if.sw_if_index,
- is_add=0)
- self.deleted_hosts_by_pg_idx[pg_if.sw_if_index].append(host)
- del self.hosts_by_pg_idx[pg_if.sw_if_index][0]
- counter += 1
- percentage = counter / count * 100
- if percentage > percent:
- self.logger.info("Delete %d L2 FIB entries .. %d%% done"
- % (count, percentage))
- percent += 1
- self.logger.info(self.vapi.ppcli("show l2fib"))
+ ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)]
+ for pg_if in ifs:
+ swif = pg_if.sw_if_index
+ for host in hosts[swif]:
+ self.vapi.l2fib_add_del(
+ mac_pton(host.mac), bd_id, swif, is_add=0)
+
+ def flush_int(self, swif, learned_hosts):
+ """
+ Flush swif L2 FIB entries.
+
+ :param int swif: sw if index.
+ """
+ flushed = dict()
+ self.vapi.l2fib_flush_int(swif)
+ flushed[swif] = learned_hosts[swif]
+ learned_hosts[swif] = []
+ return flushed
- def create_stream(self, src_if, packet_sizes, deleted=False):
+ def flush_bd(self, bd_id, learned_hosts):
+ """
+ Flush bd_id L2 FIB entries.
+
+ :param int bd_id: Bridge Domain id.
+ """
+ self.vapi.l2fib_flush_bd(bd_id)
+ flushed = dict()
+ ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)]
+ for pg_if in ifs:
+ swif = pg_if.sw_if_index
+ flushed[swif] = learned_hosts[swif]
+ learned_hosts[swif] = []
+ return flushed
+
+ def flush_all(self):
+ """
+ Flush All L2 FIB entries.
+ """
+ self.vapi.l2fib_flush_all()
+
+ def create_stream(self, src_if, packet_sizes, if_src_hosts, if_dst_hosts):
"""
Create input packet stream for defined interface using hosts or
deleted_hosts list.
:param boolean deleted: Set to True if deleted_hosts list required.
:return: Stream of packets.
"""
+ src_hosts = if_src_hosts[src_if.sw_if_index]
+ if not src_hosts:
+ return []
pkts = []
- src_hosts = self.hosts_by_pg_idx[src_if.sw_if_index]
for dst_if in self.flows[src_if]:
- dst_hosts = self.deleted_hosts_by_pg_idx[dst_if.sw_if_index]\
- if deleted else self.hosts_by_pg_idx[dst_if.sw_if_index]
- n_int = len(dst_hosts)
- for i in range(0, n_int):
- dst_host = dst_hosts[i]
+ dst_swif = dst_if.sw_if_index
+ if dst_swif not in if_dst_hosts:
+ continue
+ dst_hosts = if_dst_hosts[dst_swif]
+ for dst_host in dst_hosts:
src_host = random.choice(src_hosts)
- pkt_info = self.create_packet_info(
- src_if.sw_if_index, dst_if.sw_if_index)
+ pkt_info = self.create_packet_info(src_if, dst_if)
payload = self.info_to_payload(pkt_info)
p = (Ether(dst=dst_host.mac, src=src_host.mac) /
IP(src=src_host.ip4, dst=dst_host.ip4) /
"Port %u: Packet expected from source %u didn't arrive" %
(dst_sw_if_index, i.sw_if_index))
- def run_verify_test(self):
+ def run_verify_test(self, bd_id, src_hosts, dst_hosts):
# Test
# Create incoming packet streams for packet-generator interfaces
- for i in self.pg_interfaces:
- pkts = self.create_stream(i, self.pg_if_packet_sizes)
- i.add_stream(pkts)
-
+ self.reset_packet_infos()
+ ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)]
+ for i in ifs:
+ pkts = self.create_stream(
+ i, self.pg_if_packet_sizes,
+ if_src_hosts=src_hosts,
+ if_dst_hosts=dst_hosts)
+ if pkts:
+ i.add_stream(pkts)
+
+ self.vapi.bridge_flags(bd_id, 0, 1)
# Enable packet capture and start packet sending
- self.pg_enable_capture(self.pg_interfaces)
+ self.pg_enable_capture(ifs)
self.pg_start()
# Verify
# Verify outgoing packet streams per packet-generator interface
- for i in self.pg_interfaces:
+ for i in ifs:
+ if not dst_hosts[i.sw_if_index]:
+ continue
capture = i.get_capture()
self.logger.info("Verifying capture on interface %s" % i.name)
self.verify_capture(i, capture)
- def run_verify_negat_test(self):
+ def run_verify_negat_test(self, bd_id, src_hosts, dst_hosts):
# Test
# Create incoming packet streams for packet-generator interfaces for
# deleted MAC addresses
- self.packet_infos = {}
- for i in self.pg_interfaces:
- pkts = self.create_stream(i, self.pg_if_packet_sizes, deleted=True)
- i.add_stream(pkts)
-
+ self.reset_packet_infos()
+ ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)]
+ for i in ifs:
+ pkts = self.create_stream(
+ i, self.pg_if_packet_sizes,
+ if_src_hosts=src_hosts,
+ if_dst_hosts=dst_hosts)
+ if pkts:
+ i.add_stream(pkts)
+
+ self.vapi.bridge_flags(bd_id, 0, 1)
# Enable packet capture and start packet sending
- self.pg_enable_capture(self.pg_interfaces)
+ self.pg_enable_capture(ifs)
self.pg_start()
# Verify
# Verify outgoing packet streams per packet-generator interface
- for i in self.pg_interfaces:
+ timeout = 1
+ for i in ifs:
+ i.get_capture(0, timeout=timeout)
i.assert_nothing_captured(remark="outgoing interface")
+ timeout = 0.1
- def test_l2_fib_01(self):
- """ L2 FIB test 1 - program 100 MAC addresses
+ def test_l2_fib_program100(self):
+ """ L2 FIB - program 100 MACs
"""
- # Config 1
- # Create test host entries
- self.create_hosts(100)
+ bd_id = 1
+ hosts = self.create_hosts(100, subnet=17)
+ self.config_l2_fib_entries(bd_id, hosts)
+ self.run_verify_test(bd_id, hosts, hosts)
- # Add first 100 MAC entries to L2 FIB
- self.config_l2_fib_entries(100)
+ def test_l2_fib_program100_delete12(self):
+ """ L2 FIB - program 100, delete 12 MACs
+ """
+ bd_id = 1
+ hosts = self.create_hosts(100, subnet=17)
+ self.config_l2_fib_entries(bd_id, hosts)
+ del_hosts = self.split_hosts(hosts, 12)
+ self.delete_l2_fib_entry(bd_id, del_hosts)
- # Test 1
- self.run_verify_test()
+ self.run_verify_test(bd_id, hosts, hosts)
+ self.run_verify_negat_test(bd_id, hosts, del_hosts)
- def test_l2_fib_02(self):
- """ L2 FIB test 2 - delete 12 MAC entries
+ def test_l2_fib_program100_add100(self):
+ """ L2 FIB - program 100, add 100 MACs
+ """
+ bd_id = 1
+ hosts = self.create_hosts(100, subnet=17)
+ self.config_l2_fib_entries(bd_id, hosts)
+ hosts2 = self.create_hosts(100, subnet=22)
+ self.config_l2_fib_entries(bd_id, hosts2)
+ self.run_verify_test(bd_id, hosts, hosts2)
+
+ def test_l2_fib_program10_learn10(self):
+ """ L2 FIB - program 10 MACs, learn 10
+ """
+ hosts = self.create_hosts(20, subnet=35)
+ lhosts = self.split_hosts(hosts, 10)
+
+ bd1 = 1
+ bd2 = 2
+ self.learn_hosts(bd1, lhosts)
+ self.learn_hosts(bd2, lhosts)
+ self.config_l2_fib_entries(bd1, hosts)
+ self.config_l2_fib_entries(bd2, hosts)
+ self.run_verify_test(bd1, lhosts, hosts)
+ self.run_verify_test(bd2, lhosts, hosts)
+
+ def test_l2_fib_flush_int(self):
+ """ L2 FIB - flush interface
+ """
+ hosts = self.create_hosts(20, subnet=36)
+ lhosts = self.split_hosts(hosts, 10)
+
+ bd1 = 1
+ self.learn_hosts(bd1, lhosts)
+ self.config_l2_fib_entries(bd1, hosts)
+ self.run_verify_test(bd1, lhosts, hosts)
+ flushed = self.flush_int(self.pg_interfaces[0].sw_if_index, lhosts)
+ self.run_verify_test(bd1, hosts, lhosts)
+ self.run_verify_negat_test(bd1, hosts, flushed)
+
+ def test_l2_fib_flush_bd(self):
+ """ L2 FIB - flush BD
"""
- # Config 2
- # Delete 12 MAC entries (3 per interface) from L2 FIB
- self.delete_l2_fib_entry(12)
+ hosts = self.create_hosts(20, subnet=37)
+ lhosts = self.split_hosts(hosts, 10)
+
+ bd1 = 1
+ self.learn_hosts(bd1, lhosts)
+ self.config_l2_fib_entries(bd1, hosts)
+ self.run_verify_test(bd1, lhosts, hosts)
+ flushed = self.flush_bd(bd1, lhosts)
+ self.run_verify_negat_test(bd1, hosts, flushed)
+
+ def test_l2_fib_flush_all(self):
+ """ L2 FIB - flush all
+ """
+ hosts = self.create_hosts(20, subnet=38)
+ lhosts = self.split_hosts(hosts, 10)
- # Test 2a
- self.run_verify_test()
+ bd1 = 1
+ bd2 = 2
+ self.learn_hosts(bd1, lhosts)
+ self.learn_hosts(bd2, lhosts)
+ self.config_l2_fib_entries(bd1, hosts)
+ self.config_l2_fib_entries(bd2, hosts)
+ self.run_verify_test(bd1, hosts, lhosts)
+ self.run_verify_test(bd2, hosts, lhosts)
- # Verify 2a
- self.run_verify_negat_test()
+ self.flush_all()
- def test_l2_fib_03(self):
- """ L2 FIB test 3 - program new 100 MAC addresses
- """
- # Config 3
- # Create new test host entries
- self.create_hosts(100, start=100)
+ self.run_verify_negat_test(bd1, hosts, lhosts)
+ self.run_verify_negat_test(bd2, hosts, lhosts)
- # Add new 100 MAC entries to L2 FIB
- self.config_l2_fib_entries(100, start=22)
+ def test_l2_fib_mac_learn_evs(self):
+ """ L2 FIB - mac learning events
+ """
+ bd1 = 1
+ hosts = self.create_hosts(10, subnet=39)
- # Test 3
- self.run_verify_test()
+ self.vapi.want_macs_learn_events()
+ self.learn_hosts(bd1, hosts)
- def test_l2_fib_04(self):
- """ L2 FIB test 4 - delete 160 MAC entries
+ self.sleep(1)
+ self.logger.info(self.vapi.ppcli("show l2fib"))
+ evs = self.vapi.collect_events()
+ learned_macs = {
+ e.mac[i].mac_addr for e in evs for i in range(e.n_macs)
+ if e.mac[i].action == MAC_EVENT_ACTION_ADD}
+ macs = {h.bin_mac for swif in self.bd_ifs(bd1)
+ for h in hosts[self.pg_interfaces[swif].sw_if_index]}
+ self.vapi.want_macs_learn_events(enable_disable=0)
+ self.assertEqual(len(learned_macs ^ macs), 0)
+
+ def test_l2_fib_macs_learn_max(self):
+ """ L2 FIB - mac learning max macs in event
"""
- # Config 4
- # Delete 160 MAC entries (40 per interface) from L2 FIB
- self.delete_l2_fib_entry(160)
+ bd1 = 1
+ hosts = self.create_hosts(10, subnet=40)
+
+ ev_macs = 1
+ self.vapi.want_macs_learn_events(max_macs_in_event=ev_macs)
+ self.learn_hosts(bd1, hosts)
- # Test 4a
- self.run_verify_negat_test()
+ self.sleep(1)
+ self.logger.info(self.vapi.ppcli("show l2fib"))
+ evs = self.vapi.collect_events()
+ self.vapi.want_macs_learn_events(enable_disable=0)
+
+ self.assertGreater(len(evs), 0)
+ learned_macs = {
+ e.mac[i].mac_addr for e in evs for i in range(e.n_macs)
+ if e.mac[i].action == MAC_EVENT_ACTION_ADD}
+ macs = {h.bin_mac for swif in self.bd_ifs(bd1)
+ for h in hosts[self.pg_interfaces[swif].sw_if_index]}
+
+ for e in evs:
+ self.assertLess(len(e), ev_macs * 10)
+ self.assertEqual(len(learned_macs ^ macs), 0)
if __name__ == '__main__':
Code Review / vpp.git / blobdiff