"""L2XC Multi-instance Test Case HLD:
**NOTES:**
- - higher number (more than 15) of pg-l2 interfaces causes problems => only \
- 14 pg-l2 interfaces and 10 cross-connects are tested
- - jumbo packets in configuration with 14 l2-pg interfaces leads to \
- problems too
+ - higher number (more than 15) of pg-l2 interfaces causes problems => only
+ 14 pg-l2 interfaces and 10 cross-connects are tested
+ - jumbo packets in configuration with 14 l2-pg interfaces leads to
+ problems too
**config 1**
- add 14 pg-l2 interfaces
- send L2 MAC frames between all pairs of pg-l2 interfaces
**verify 1**
- - all packets received correctly in case of cross-connected l2-pg interfaces
+ - all packets received correctly in case of cross-connected l2-pg
+ interfaces
- no packet received in case of not cross-connected l2-pg interfaces
**config 2**
- send L2 MAC frames between all pairs of pg-l2 interfaces
**verify 2**
- - all packets received correctly in case of cross-connected l2-pg interfaces
+ - all packets received correctly in case of cross-connected l2-pg
+ interfaces
- no packet received in case of not cross-connected l2-pg interfaces
**config 3**
- send L2 MAC frames between all pairs of pg-l2 interfaces
**verify 3**
- - all packets received correctly in case of cross-connected l2-pg interfaces
+ - all packets received correctly in case of cross-connected l2-pg
+ interfaces
- no packet received in case of not cross-connected l2-pg interfaces
**config 4**
from scapy.layers.inet import IP, UDP
from framework import VppTestCase, VppTestRunner
-from util import Host
+from util import Host, ppp
class TestL2xcMultiInst(VppTestCase):
cls.flows = dict()
for i in range(len(cls.pg_interfaces)):
delta = 1 if i % 2 == 0 else -1
- cls.flows[cls.pg_interfaces[i]] = [cls.pg_interfaces[i+delta]]
+ cls.flows[cls.pg_interfaces[i]] =\
+ [cls.pg_interfaces[i + delta]]
# Mapping between packet-generator index and lists of test hosts
cls.hosts_by_pg_idx = dict()
super(TestL2xcMultiInst, cls).tearDownClass()
raise
+ @classmethod
+ def tearDownClass(cls):
+ super(TestL2xcMultiInst, cls).tearDownClass()
+
def setUp(self):
"""
Clear trace and packet infos before running each test.
"""
super(TestL2xcMultiInst, self).setUp()
- self.packet_infos = {}
+ self.reset_packet_infos()
def tearDown(self):
"""
Show various debug prints after each test.
"""
super(TestL2xcMultiInst, self).tearDown()
- if not self.vpp_dead:
- self.logger.info(self.vapi.ppcli("show l2patch"))
+
+ def show_commands_at_teardown(self):
+ self.logger.info(self.vapi.ppcli("show l2patch"))
@classmethod
def create_hosts(cls, count):
(Default value = 0)
"""
for i in range(count):
- rx_if = self.pg_interfaces[i+start]
+ rx_if = self.pg_interfaces[i + start]
delta = 1 if i % 2 == 0 else -1
- tx_if = self.pg_interfaces[i+start+delta]
+ tx_if = self.pg_interfaces[i + start + delta]
self.vapi.sw_interface_set_l2_xconnect(rx_if.sw_if_index,
tx_if.sw_if_index, 1)
self.logger.info("Cross-connect from %s to %s created"
(Default value = 0)
"""
for i in range(count):
- rx_if = self.pg_interfaces[i+start]
+ rx_if = self.pg_interfaces[i + start]
delta = 1 if i % 2 == 0 else -1
- tx_if = self.pg_interfaces[i+start+delta]
+ tx_if = self.pg_interfaces[i + start + delta]
self.vapi.sw_interface_set_l2_xconnect(rx_if.sw_if_index,
tx_if.sw_if_index, 0)
self.logger.info("Cross-connect from %s to %s deleted"
for i in range(0, n_int):
dst_host = dst_hosts[i]
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) /
last_info[i.sw_if_index] = None
dst_sw_if_index = pg_if.sw_if_index
for packet in capture:
- payload_info = self.payload_to_info(str(packet[Raw]))
+ payload_info = self.payload_to_info(packet[Raw])
try:
ip = packet[IP]
udp = packet[UDP]
self.assertEqual(udp.sport, saved_packet[UDP].sport)
self.assertEqual(udp.dport, saved_packet[UDP].dport)
except:
- self.logger.error("Unexpected or invalid packet:")
- self.logger.error(packet.show())
+ 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(
# Verify
# Verify outgoing packet streams per packet-generator interface
for pg_if in self.pg_interfaces:
- capture = pg_if.get_capture()
if pg_if in self.pg_in_xc:
- if len(capture) == 0:
- raise RuntimeError("Interface %s is cross-connect sink but "
- "the capture is empty!" % pg_if.name)
+ capture = pg_if.get_capture(
+ remark="interface is a cross-connect sink")
self.verify_capture(pg_if, capture)
elif pg_if in self.pg_not_in_xc:
- try:
- self.assertEqual(len(capture), 0)
- except AssertionError:
- raise RuntimeError("Interface %s is not cross-connect sink "
- "but the capture is not empty!"
- % pg_if.name)
+ pg_if.assert_nothing_captured(
+ remark="interface is not a cross-connect sink")
else:
- self.logger.error("Unknown interface: %s" % pg_if.name)
+ raise Exception("Unexpected interface: %s" % pg_if.name)
def test_l2xc_inst_01(self):
""" L2XC Multi-instance test 1 - create 10 cross-connects
Code Review / vpp.git / blobdiff