import socket
from framework import VppTestCase, VppTestRunner
+from vpp_ip import DpoProto
from vpp_ip_route import VppIpRoute, VppRoutePath, VppMplsRoute, \
- VppMplsIpBind
+ VppMplsIpBind, VppIpMRoute, VppMRoutePath, \
+ MRouteItfFlags, MRouteEntryFlags, VppIpTable, VppMplsTable, \
+ VppMplsLabel, MplsLspMode, find_mpls_route
+from vpp_mpls_tunnel_interface import VppMPLSTunnelInterface
from scapy.packet import Raw
from scapy.layers.l2 import Ether
from scapy.layers.inet import IP, UDP, ICMP
-from scapy.layers.inet6 import IPv6
+from scapy.layers.inet6 import IPv6, ICMPv6TimeExceeded
from scapy.contrib.mpls import MPLS
+def verify_filter(capture, sent):
+ if not len(capture) == len(sent):
+ # filter out any IPv6 RAs from the capture
+ for p in capture:
+ if p.haslayer(IPv6):
+ capture.remove(p)
+ return capture
+
+
+def verify_mpls_stack(tst, rx, mpls_labels):
+ # the rx'd packet has the MPLS label popped
+ eth = rx[Ether]
+ tst.assertEqual(eth.type, 0x8847)
+
+ rx_mpls = rx[MPLS]
+
+ for ii in range(len(mpls_labels)):
+ tst.assertEqual(rx_mpls.label, mpls_labels[ii].value)
+ tst.assertEqual(rx_mpls.cos, mpls_labels[ii].exp)
+ tst.assertEqual(rx_mpls.ttl, mpls_labels[ii].ttl)
+
+ if ii == len(mpls_labels) - 1:
+ tst.assertEqual(rx_mpls.s, 1)
+ else:
+ # not end of stack
+ tst.assertEqual(rx_mpls.s, 0)
+ # pop the label to expose the next
+ rx_mpls = rx_mpls[MPLS].payload
+
+
class TestMPLS(VppTestCase):
""" MPLS Test Case """
super(TestMPLS, self).setUp()
# create 2 pg interfaces
- self.create_pg_interfaces(range(2))
+ self.create_pg_interfaces(range(4))
# setup both interfaces
# assign them different tables.
table_id = 0
+ self.tables = []
+
+ tbl = VppMplsTable(self, 0)
+ tbl.add_vpp_config()
+ self.tables.append(tbl)
for i in self.pg_interfaces:
i.admin_up()
+
+ if table_id != 0:
+ tbl = VppIpTable(self, table_id)
+ tbl.add_vpp_config()
+ self.tables.append(tbl)
+ tbl = VppIpTable(self, table_id, is_ip6=1)
+ tbl.add_vpp_config()
+ self.tables.append(tbl)
+
i.set_table_ip4(table_id)
i.set_table_ip6(table_id)
i.config_ip4()
table_id += 1
def tearDown(self):
- super(TestMPLS, self).tearDown()
for i in self.pg_interfaces:
i.unconfig_ip4()
i.unconfig_ip6()
i.ip6_disable()
+ i.set_table_ip4(0)
+ i.set_table_ip6(0)
+ i.disable_mpls()
i.admin_down()
+ super(TestMPLS, self).tearDown()
# the default of 64 matches the IP packet TTL default
def create_stream_labelled_ip4(
self,
src_if,
mpls_labels,
- mpls_ttl=255,
ping=0,
- ip_itf=None):
+ ip_itf=None,
+ dst_ip=None,
+ chksum=None,
+ ip_ttl=64,
+ n=257):
self.reset_packet_infos()
pkts = []
- for i in range(0, 257):
+ for i in range(0, n):
info = self.create_packet_info(src_if, src_if)
payload = self.info_to_payload(info)
p = Ether(dst=src_if.local_mac, src=src_if.remote_mac)
for ii in range(len(mpls_labels)):
- if ii == len(mpls_labels) - 1:
- p = p / MPLS(label=mpls_labels[ii], ttl=mpls_ttl, s=1)
- else:
- p = p / MPLS(label=mpls_labels[ii], ttl=mpls_ttl, s=0)
+ p = p / MPLS(label=mpls_labels[ii].value,
+ ttl=mpls_labels[ii].ttl,
+ cos=mpls_labels[ii].exp)
if not ping:
- p = (p / IP(src=src_if.local_ip4, dst=src_if.remote_ip4) /
- UDP(sport=1234, dport=1234) /
- Raw(payload))
+ if not dst_ip:
+ p = (p / IP(src=src_if.local_ip4,
+ dst=src_if.remote_ip4,
+ ttl=ip_ttl) /
+ UDP(sport=1234, dport=1234) /
+ Raw(payload))
+ else:
+ p = (p / IP(src=src_if.local_ip4, dst=dst_ip, ttl=ip_ttl) /
+ UDP(sport=1234, dport=1234) /
+ Raw(payload))
else:
p = (p / IP(src=ip_itf.remote_ip4,
- dst=ip_itf.local_ip4) /
+ dst=ip_itf.local_ip4,
+ ttl=ip_ttl) /
ICMP())
+ if chksum:
+ p[IP].chksum = chksum
info.data = p.copy()
pkts.append(p)
return pkts
- def create_stream_ip4(self, src_if, dst_ip):
+ def create_stream_ip4(self, src_if, dst_ip, ip_ttl=64, ip_dscp=0):
self.reset_packet_infos()
pkts = []
for i in range(0, 257):
info = self.create_packet_info(src_if, src_if)
payload = self.info_to_payload(info)
p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
- IP(src=src_if.remote_ip4, dst=dst_ip) /
+ IP(src=src_if.remote_ip4, dst=dst_ip,
+ ttl=ip_ttl, tos=ip_dscp) /
UDP(sport=1234, dport=1234) /
Raw(payload))
info.data = p.copy()
pkts.append(p)
return pkts
- def create_stream_labelled_ip6(self, src_if, mpls_label, mpls_ttl):
+ def create_stream_ip6(self, src_if, dst_ip, ip_ttl=64, ip_dscp=0):
self.reset_packet_infos()
pkts = []
for i in range(0, 257):
info = self.create_packet_info(src_if, src_if)
payload = self.info_to_payload(info)
p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
- MPLS(label=mpls_label, ttl=mpls_ttl) /
- IPv6(src=src_if.remote_ip6, dst=src_if.remote_ip6) /
+ IPv6(src=src_if.remote_ip6, dst=dst_ip,
+ hlim=ip_ttl, tc=ip_dscp) /
UDP(sport=1234, dport=1234) /
Raw(payload))
info.data = p.copy()
pkts.append(p)
return pkts
- @staticmethod
- def verify_filter(capture, sent):
- if not len(capture) == len(sent):
- # filter out any IPv6 RAs from the capture
- for p in capture:
- if p.haslayer(IPv6):
- capture.remove(p)
- return capture
+ def create_stream_labelled_ip6(self, src_if, mpls_labels,
+ hlim=64, dst_ip=None):
+ if dst_ip is None:
+ dst_ip = src_if.remote_ip6
+ self.reset_packet_infos()
+ pkts = []
+ for i in range(0, 257):
+ info = self.create_packet_info(src_if, src_if)
+ payload = self.info_to_payload(info)
+ p = Ether(dst=src_if.local_mac, src=src_if.remote_mac)
+ for l in mpls_labels:
+ p = p / MPLS(label=l.value, ttl=l.ttl, cos=l.exp)
+
+ p = p / (IPv6(src=src_if.remote_ip6, dst=dst_ip, hlim=hlim) /
+ UDP(sport=1234, dport=1234) /
+ Raw(payload))
+ info.data = p.copy()
+ pkts.append(p)
+ return pkts
- def verify_capture_ip4(self, src_if, capture, sent, ping_resp=0):
+ def verify_capture_ip4(self, src_if, capture, sent, ping_resp=0,
+ ip_ttl=None, ip_dscp=0):
try:
- capture = self.verify_filter(capture, sent)
+ capture = verify_filter(capture, sent)
self.assertEqual(len(capture), len(sent))
if not ping_resp:
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
- # IP processing post pop has decremented the TTL
- self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl)
+ self.assertEqual(rx_ip.tos, ip_dscp)
+ if not ip_ttl:
+ # IP processing post pop has decremented the TTL
+ self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl)
+ else:
+ self.assertEqual(rx_ip.ttl, ip_ttl)
else:
self.assertEqual(rx_ip.src, tx_ip.dst)
self.assertEqual(rx_ip.dst, tx_ip.src)
except:
raise
- def verify_mpls_stack(self, rx, mpls_labels, ttl=255, num=0):
- # the rx'd packet has the MPLS label popped
- eth = rx[Ether]
- self.assertEqual(eth.type, 0x8847)
+ def verify_capture_labelled_ip4(self, src_if, capture, sent,
+ mpls_labels, ip_ttl=None):
+ try:
+ capture = verify_filter(capture, sent)
- rx_mpls = rx[MPLS]
+ self.assertEqual(len(capture), len(sent))
- for ii in range(len(mpls_labels)):
- self.assertEqual(rx_mpls.label, mpls_labels[ii])
- self.assertEqual(rx_mpls.cos, 0)
- if ii == num:
- self.assertEqual(rx_mpls.ttl, ttl)
- else:
- self.assertEqual(rx_mpls.ttl, 255)
+ for i in range(len(capture)):
+ tx = sent[i]
+ rx = capture[i]
+ tx_ip = tx[IP]
+ rx_ip = rx[IP]
- if ii == len(mpls_labels) - 1:
- self.assertEqual(rx_mpls.s, 1)
- else:
- # not end of stack
- self.assertEqual(rx_mpls.s, 0)
- # pop the label to expose the next
- rx_mpls = rx_mpls[MPLS].payload
+ verify_mpls_stack(self, rx, mpls_labels)
- def verify_capture_labelled_ip4(self, src_if, capture, sent,
- mpls_labels):
+ self.assertEqual(rx_ip.src, tx_ip.src)
+ self.assertEqual(rx_ip.dst, tx_ip.dst)
+ if not ip_ttl:
+ # IP processing post pop has decremented the TTL
+ self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl)
+ else:
+ self.assertEqual(rx_ip.ttl, ip_ttl)
+
+ except:
+ raise
+
+ def verify_capture_labelled_ip6(self, src_if, capture, sent,
+ mpls_labels, ip_ttl=None):
try:
- capture = self.verify_filter(capture, sent)
+ capture = verify_filter(capture, sent)
self.assertEqual(len(capture), len(sent))
for i in range(len(capture)):
tx = sent[i]
rx = capture[i]
- tx_ip = tx[IP]
- rx_ip = rx[IP]
+ tx_ip = tx[IPv6]
+ rx_ip = rx[IPv6]
- # the MPLS TTL is copied from the IP
- self.verify_mpls_stack(
- rx, mpls_labels, rx_ip.ttl, len(mpls_labels) - 1)
+ verify_mpls_stack(self, rx, mpls_labels)
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
- # IP processing post pop has decremented the TTL
- self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl)
+ if not ip_ttl:
+ # IP processing post pop has decremented the TTL
+ self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim)
+ else:
+ self.assertEqual(rx_ip.hlim, ip_ttl)
except:
raise
def verify_capture_tunneled_ip4(self, src_if, capture, sent, mpls_labels):
try:
- capture = self.verify_filter(capture, sent)
+ capture = verify_filter(capture, sent)
self.assertEqual(len(capture), len(sent))
tx_ip = tx[IP]
rx_ip = rx[IP]
- # the MPLS TTL is 255 since it enters a new tunnel
- self.verify_mpls_stack(
- rx, mpls_labels, 255, len(mpls_labels) - 1)
+ verify_mpls_stack(self, rx, mpls_labels)
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
raise
def verify_capture_labelled(self, src_if, capture, sent,
- mpls_labels, ttl=254, num=0):
+ mpls_labels):
try:
- capture = self.verify_filter(capture, sent)
+ capture = verify_filter(capture, sent)
self.assertEqual(len(capture), len(sent))
for i in range(len(capture)):
rx = capture[i]
- self.verify_mpls_stack(rx, mpls_labels, ttl, num)
+ verify_mpls_stack(self, rx, mpls_labels)
except:
raise
- def verify_capture_ip6(self, src_if, capture, sent):
+ def verify_capture_ip6(self, src_if, capture, sent,
+ ip_hlim=None, ip_dscp=0):
try:
self.assertEqual(len(capture), len(sent))
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
+ self.assertEqual(rx_ip.tc, ip_dscp)
# IP processing post pop has decremented the TTL
- self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim)
+ if not ip_hlim:
+ self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim)
+ else:
+ self.assertEqual(rx_ip.hlim, ip_hlim)
+
+ except:
+ raise
+
+ def verify_capture_ip6_icmp(self, src_if, capture, sent):
+ try:
+ self.assertEqual(len(capture), len(sent))
+
+ for i in range(len(capture)):
+ tx = sent[i]
+ rx = capture[i]
+
+ # the rx'd packet has the MPLS label popped
+ eth = rx[Ether]
+ self.assertEqual(eth.type, 0x86DD)
+
+ tx_ip = tx[IPv6]
+ rx_ip = rx[IPv6]
+
+ self.assertEqual(rx_ip.dst, tx_ip.src)
+ # ICMP sourced from the interface's address
+ self.assertEqual(rx_ip.src, src_if.local_ip6)
+ # hop-limit reset to 255 for IMCP packet
+ self.assertEqual(rx_ip.hlim, 255)
+
+ icmp = rx[ICMPv6TimeExceeded]
except:
raise
route_32_eos = VppMplsRoute(self, 32, 1,
[VppRoutePath(self.pg0.remote_ip4,
self.pg0.sw_if_index,
- labels=[33])])
+ labels=[VppMplsLabel(33)])])
route_32_eos.add_vpp_config()
+ self.assertTrue(
+ find_mpls_route(self, 0, 32, 1,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(33)])]))
+
#
# a stream that matches the route for 10.0.0.1
# PG0 is in the default table
#
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [32])
- self.pg0.add_stream(tx)
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(32, ttl=32, exp=1)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(self.pg0, rx, tx,
+ [VppMplsLabel(33, ttl=31, exp=1)])
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [33])
+ self.assertEqual(route_32_eos.get_stats_to()['packets'], 257)
#
# A simple MPLS xconnect - non-eos label in label out
route_32_neos = VppMplsRoute(self, 32, 0,
[VppRoutePath(self.pg0.remote_ip4,
self.pg0.sw_if_index,
- labels=[33])])
+ labels=[VppMplsLabel(33)])])
route_32_neos.add_vpp_config()
#
# a stream that matches the route for 10.0.0.1
# PG0 is in the default table
#
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [32, 99])
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(32, ttl=21, exp=7),
+ VppMplsLabel(99)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(self.pg0, rx, tx,
+ [VppMplsLabel(33, ttl=20, exp=7),
+ VppMplsLabel(99)])
+ self.assertEqual(route_32_neos.get_stats_to()['packets'], 257)
- rx = self.pg0.get_capture()
- self.verify_capture_labelled(self.pg0, rx, tx, [33, 99])
+ #
+ # A simple MPLS xconnect - non-eos label in label out, uniform mode
+ #
+ route_42_neos = VppMplsRoute(
+ self, 42, 0,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(43, MplsLspMode.UNIFORM)])])
+ route_42_neos.add_vpp_config()
+
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(42, ttl=21, exp=7),
+ VppMplsLabel(99)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(self.pg0, rx, tx,
+ [VppMplsLabel(43, ttl=20, exp=7),
+ VppMplsLabel(99)])
#
# An MPLS xconnect - EOS label in IP out
labels=[])])
route_33_eos.add_vpp_config()
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [33])
- self.pg0.add_stream(tx)
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(33)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip4(self.pg0, rx, tx)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ #
+ # disposed packets have an invalid IPv4 checkusm
+ #
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(33)],
+ dst_ip=self.pg0.remote_ip4,
+ n=65,
+ chksum=1)
+ self.send_and_assert_no_replies(self.pg0, tx, "Invalid Checksum")
- rx = self.pg0.get_capture()
- self.verify_capture_ip4(self.pg0, rx, tx)
+ #
+ # An MPLS xconnect - EOS label in IP out, uniform mode
+ #
+ route_3333_eos = VppMplsRoute(
+ self, 3333, 1,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(3, MplsLspMode.UNIFORM)])])
+ route_3333_eos.add_vpp_config()
+
+ tx = self.create_stream_labelled_ip4(
+ self.pg0,
+ [VppMplsLabel(3333, ttl=55, exp=3)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip4(self.pg0, rx, tx, ip_ttl=54, ip_dscp=0x60)
+ tx = self.create_stream_labelled_ip4(
+ self.pg0,
+ [VppMplsLabel(3333, ttl=66, exp=4)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip4(self.pg0, rx, tx, ip_ttl=65, ip_dscp=0x80)
+
+ #
+ # An MPLS xconnect - EOS label in IPv6 out
+ #
+ route_333_eos = VppMplsRoute(
+ self, 333, 1,
+ [VppRoutePath(self.pg0.remote_ip6,
+ self.pg0.sw_if_index,
+ labels=[],
+ proto=DpoProto.DPO_PROTO_IP6)])
+ route_333_eos.add_vpp_config()
+
+ tx = self.create_stream_labelled_ip6(self.pg0, [VppMplsLabel(333)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip6(self.pg0, rx, tx)
+
+ #
+ # disposed packets have an TTL expired
+ #
+ tx = self.create_stream_labelled_ip6(self.pg0,
+ [VppMplsLabel(333, ttl=64)],
+ dst_ip=self.pg1.remote_ip6,
+ hlim=1)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip6_icmp(self.pg0, rx, tx)
+
+ #
+ # An MPLS xconnect - EOS label in IPv6 out w imp-null
+ #
+ route_334_eos = VppMplsRoute(
+ self, 334, 1,
+ [VppRoutePath(self.pg0.remote_ip6,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(3)],
+ proto=DpoProto.DPO_PROTO_IP6)])
+ route_334_eos.add_vpp_config()
+
+ tx = self.create_stream_labelled_ip6(self.pg0,
+ [VppMplsLabel(334, ttl=64)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip6(self.pg0, rx, tx)
+
+ #
+ # An MPLS xconnect - EOS label in IPv6 out w imp-null in uniform mode
+ #
+ route_335_eos = VppMplsRoute(
+ self, 335, 1,
+ [VppRoutePath(self.pg0.remote_ip6,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(3, MplsLspMode.UNIFORM)],
+ proto=DpoProto.DPO_PROTO_IP6)])
+ route_335_eos.add_vpp_config()
+
+ tx = self.create_stream_labelled_ip6(
+ self.pg0,
+ [VppMplsLabel(335, ttl=27, exp=4)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip6(self.pg0, rx, tx, ip_hlim=26, ip_dscp=0x80)
+
+ #
+ # disposed packets have an TTL expired
+ #
+ tx = self.create_stream_labelled_ip6(self.pg0, [VppMplsLabel(334)],
+ dst_ip=self.pg1.remote_ip6,
+ hlim=0)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip6_icmp(self.pg0, rx, tx)
#
# An MPLS xconnect - non-EOS label in IP out - an invalid configuration
labels=[])])
route_33_neos.add_vpp_config()
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [33, 99])
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- self.pg0.assert_nothing_captured(
- remark="MPLS non-EOS packets popped and forwarded")
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(33),
+ VppMplsLabel(99)])
+ self.send_and_assert_no_replies(
+ self.pg0, tx,
+ "MPLS non-EOS packets popped and forwarded")
#
# A recursive EOS x-connect, which resolves through another x-connect
+ # in pipe mode
#
route_34_eos = VppMplsRoute(self, 34, 1,
[VppRoutePath("0.0.0.0",
0xffffffff,
nh_via_label=32,
- labels=[44, 45])])
+ labels=[VppMplsLabel(44),
+ VppMplsLabel(45)])])
route_34_eos.add_vpp_config()
- tx = self.create_stream_labelled_ip4(self.pg0, [34])
- self.pg0.add_stream(tx)
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(34, ttl=3)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(self.pg0, rx, tx,
+ [VppMplsLabel(33),
+ VppMplsLabel(44),
+ VppMplsLabel(45, ttl=2)])
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ self.assertEqual(route_34_eos.get_stats_to()['packets'], 257)
+ self.assertEqual(route_32_neos.get_stats_via()['packets'], 257)
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [33, 44, 45])
+ #
+ # A recursive EOS x-connect, which resolves through another x-connect
+ # in uniform mode
+ #
+ route_35_eos = VppMplsRoute(
+ self, 35, 1,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ nh_via_label=42,
+ labels=[VppMplsLabel(44)])])
+ route_35_eos.add_vpp_config()
+
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(35, ttl=3)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(self.pg0, rx, tx,
+ [VppMplsLabel(43, ttl=2),
+ VppMplsLabel(44, ttl=2)])
#
# A recursive non-EOS x-connect, which resolves through another
[VppRoutePath("0.0.0.0",
0xffffffff,
nh_via_label=32,
- labels=[44, 46])])
+ labels=[VppMplsLabel(44),
+ VppMplsLabel(46)])])
route_34_neos.add_vpp_config()
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [34, 99])
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(34, ttl=45),
+ VppMplsLabel(99)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
# it's the 2nd (counting from 0) label in the stack that is swapped
- self.verify_capture_labelled(self.pg0, rx, tx, [33, 44, 46, 99], num=2)
+ self.verify_capture_labelled(self.pg0, rx, tx,
+ [VppMplsLabel(33),
+ VppMplsLabel(44),
+ VppMplsLabel(46, ttl=44),
+ VppMplsLabel(99)])
#
# an recursive IP route that resolves through the recursive non-eos
[VppRoutePath("0.0.0.0",
0xffffffff,
nh_via_label=34,
- labels=[55])])
+ labels=[VppMplsLabel(55)])])
ip_10_0_0_1.add_vpp_config()
- self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "10.0.0.1")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [33, 44, 46, 55])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(33),
+ VppMplsLabel(44),
+ VppMplsLabel(46),
+ VppMplsLabel(55)])
+ self.assertEqual(ip_10_0_0_1.get_stats_to()['packets'], 257)
ip_10_0_0_1.remove_vpp_config()
route_34_neos.remove_vpp_config()
route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
[VppRoutePath(self.pg0.remote_ip4,
self.pg0.sw_if_index,
- labels=[45])])
+ labels=[VppMplsLabel(45)])])
route_10_0_0_1.add_vpp_config()
# bind a local label to the route
binding.add_vpp_config()
# non-EOS stream
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [44, 99])
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_capture_labelled(self.pg0, rx, tx, [45, 99])
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(44),
+ VppMplsLabel(99)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(self.pg0, rx, tx,
+ [VppMplsLabel(45, ttl=63),
+ VppMplsLabel(99)])
# EOS stream
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [44])
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_capture_labelled(self.pg0, rx, tx, [45])
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(44)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled(self.pg0, rx, tx,
+ [VppMplsLabel(45, ttl=63)])
# IP stream
- self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "10.0.0.1")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [45])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(self.pg0, rx, tx, [VppMplsLabel(45)])
#
# cleanup
route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
[VppRoutePath(self.pg0.remote_ip4,
self.pg0.sw_if_index,
- labels=[32])])
+ labels=[VppMplsLabel(32)])])
route_10_0_0_1.add_vpp_config()
#
# a stream that matches the route for 10.0.0.1
# PG0 is in the default table
#
- self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "10.0.0.1")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [32])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(self.pg0, rx, tx, [VppMplsLabel(32)])
#
# Add a non-recursive route with a 3 out labels
route_10_0_0_2 = VppIpRoute(self, "10.0.0.2", 32,
[VppRoutePath(self.pg0.remote_ip4,
self.pg0.sw_if_index,
- labels=[32, 33, 34])])
+ labels=[VppMplsLabel(32),
+ VppMplsLabel(33),
+ VppMplsLabel(34)])])
route_10_0_0_2.add_vpp_config()
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.2",
+ ip_ttl=44, ip_dscp=0xff)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(32),
+ VppMplsLabel(33),
+ VppMplsLabel(34)],
+ ip_ttl=43)
+
#
- # a stream that matches the route for 10.0.0.1
- # PG0 is in the default table
+ # Add a non-recursive route with a single out label in uniform mode
#
- self.vapi.cli("clear trace")
- tx = self.create_stream_ip4(self.pg0, "10.0.0.2")
- self.pg0.add_stream(tx)
+ route_10_0_0_3 = VppIpRoute(
+ self, "10.0.0.3", 32,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(32,
+ mode=MplsLspMode.UNIFORM)])])
+ route_10_0_0_3.add_vpp_config()
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.3",
+ ip_ttl=54, ip_dscp=0xbe)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(32, ttl=53, exp=5)])
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [32, 33, 34])
+ #
+ # Add a IPv6 non-recursive route with a single out label in
+ # uniform mode
+ #
+ route_2001_3 = VppIpRoute(
+ self, "2001::3", 128,
+ [VppRoutePath(self.pg0.remote_ip6,
+ self.pg0.sw_if_index,
+ proto=DpoProto.DPO_PROTO_IP6,
+ labels=[VppMplsLabel(32,
+ mode=MplsLspMode.UNIFORM)])],
+ is_ip6=1)
+ route_2001_3.add_vpp_config()
+
+ tx = self.create_stream_ip6(self.pg0, "2001::3",
+ ip_ttl=54, ip_dscp=0xbe)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip6(self.pg0, rx, tx,
+ [VppMplsLabel(32, ttl=53, exp=5)])
#
# add a recursive path, with output label, via the 1 label route
route_11_0_0_1 = VppIpRoute(self, "11.0.0.1", 32,
[VppRoutePath("10.0.0.1",
0xffffffff,
- labels=[44])])
+ labels=[VppMplsLabel(44)])])
route_11_0_0_1.add_vpp_config()
#
# a stream that matches the route for 11.0.0.1, should pick up
# the label stack for 11.0.0.1 and 10.0.0.1
#
- self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "11.0.0.1")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(32),
+ VppMplsLabel(44)])
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(self.pg0, rx, tx, [32, 44])
+ self.assertEqual(route_11_0_0_1.get_stats_to()['packets'], 257)
#
# add a recursive path, with 2 labels, via the 3 label route
route_11_0_0_2 = VppIpRoute(self, "11.0.0.2", 32,
[VppRoutePath("10.0.0.2",
0xffffffff,
- labels=[44, 45])])
+ labels=[VppMplsLabel(44),
+ VppMplsLabel(45)])])
route_11_0_0_2.add_vpp_config()
#
# a stream that matches the route for 11.0.0.1, should pick up
# the label stack for 11.0.0.1 and 10.0.0.1
#
- self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "11.0.0.2")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
- self.verify_capture_labelled_ip4(
- self.pg0, rx, tx, [32, 33, 34, 44, 45])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(32),
+ VppMplsLabel(33),
+ VppMplsLabel(34),
+ VppMplsLabel(44),
+ VppMplsLabel(45)])
+
+ self.assertEqual(route_11_0_0_2.get_stats_to()['packets'], 257)
+
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(32),
+ VppMplsLabel(33),
+ VppMplsLabel(34),
+ VppMplsLabel(44),
+ VppMplsLabel(45)])
+
+ self.assertEqual(route_11_0_0_2.get_stats_to()['packets'], 514)
#
# cleanup
route_10_0_0_2.remove_vpp_config()
route_10_0_0_1.remove_vpp_config()
- def test_tunnel(self):
- """ MPLS Tunnel Tests """
+ def test_tunnel_pipe(self):
+ """ MPLS Tunnel Tests - Pipe """
#
# Create a tunnel with a single out label
#
- nh_addr = socket.inet_pton(socket.AF_INET, self.pg0.remote_ip4)
-
- reply = self.vapi.mpls_tunnel_add_del(
- 0xffffffff, # don't know the if index yet
- 1, # IPv4 next-hop
- nh_addr,
- self.pg0.sw_if_index,
- 0, # next-hop-table-id
- 1, # next-hop-weight
- 2, # num-out-labels,
- [44, 46])
- self.vapi.sw_interface_set_flags(reply.sw_if_index, admin_up_down=1)
+ mpls_tun = VppMPLSTunnelInterface(
+ self,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(44),
+ VppMplsLabel(46)])])
+ mpls_tun.add_vpp_config()
+ mpls_tun.admin_up()
#
# add an unlabelled route through the new tunnel
#
route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
[VppRoutePath("0.0.0.0",
- reply.sw_if_index)])
+ mpls_tun._sw_if_index)])
route_10_0_0_3.add_vpp_config()
self.vapi.cli("clear trace")
self.pg_start()
rx = self.pg0.get_capture()
- self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [44, 46])
-
- def test_v4_exp_null(self):
- """ MPLS V4 Explicit NULL test """
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(44),
+ VppMplsLabel(46)])
#
- # The first test case has an MPLS TTL of 0
- # all packet should be dropped
+ # add a labelled route through the new tunnel
#
- tx = self.create_stream_labelled_ip4(self.pg0, [0], 0)
+ route_10_0_0_4 = VppIpRoute(self, "10.0.0.4", 32,
+ [VppRoutePath("0.0.0.0",
+ mpls_tun._sw_if_index,
+ labels=[33])])
+ route_10_0_0_4.add_vpp_config()
+
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.4")
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- self.pg0.assert_nothing_captured(remark="MPLS TTL=0 packets forwarded")
+ rx = self.pg0.get_capture()
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(44),
+ VppMplsLabel(46),
+ VppMplsLabel(33, ttl=255)])
+
+ def test_tunnel_uniform(self):
+ """ MPLS Tunnel Tests - Uniform """
#
- # a stream with a non-zero MPLS TTL
- # PG0 is in the default table
+ # Create a tunnel with a single out label
+ # The label stack is specified here from outer to inner
#
- tx = self.create_stream_labelled_ip4(self.pg0, [0])
+ mpls_tun = VppMPLSTunnelInterface(
+ self,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(44, ttl=32),
+ VppMplsLabel(46, MplsLspMode.UNIFORM)])])
+ mpls_tun.add_vpp_config()
+ mpls_tun.admin_up()
+
+ #
+ # add an unlabelled route through the new tunnel
+ #
+ route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
+ [VppRoutePath("0.0.0.0",
+ mpls_tun._sw_if_index)])
+ route_10_0_0_3.add_vpp_config()
+
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.3", ip_ttl=24)
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
- self.verify_capture_ip4(self.pg0, rx, tx)
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(44, ttl=32),
+ VppMplsLabel(46, ttl=23)])
#
- # a stream with a non-zero MPLS TTL
- # PG1 is in table 1
- # we are ensuring the post-pop lookup occurs in the VRF table
+ # add a labelled route through the new tunnel
#
+ route_10_0_0_4 = VppIpRoute(
+ self, "10.0.0.4", 32,
+ [VppRoutePath("0.0.0.0",
+ mpls_tun._sw_if_index,
+ labels=[VppMplsLabel(33, ttl=47)])])
+ route_10_0_0_4.add_vpp_config()
+
self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg1, [0])
- self.pg1.add_stream(tx)
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.4")
+ self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx = self.pg1.get_capture()
- self.verify_capture_ip4(self.pg0, rx, tx)
+ rx = self.pg0.get_capture()
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(44, ttl=32),
+ VppMplsLabel(46, ttl=47),
+ VppMplsLabel(33, ttl=47)])
+
+ def test_mpls_tunnel_many(self):
+ """ Multiple Tunnels """
+
+ for ii in range(10):
+ mpls_tun = VppMPLSTunnelInterface(
+ self,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(44, ttl=32),
+ VppMplsLabel(46, MplsLspMode.UNIFORM)])])
+ mpls_tun.add_vpp_config()
+ mpls_tun.admin_up()
- def test_v6_exp_null(self):
- """ MPLS V6 Explicit NULL test """
+ def test_v4_exp_null(self):
+ """ MPLS V4 Explicit NULL test """
+
+ #
+ # The first test case has an MPLS TTL of 0
+ # all packet should be dropped
+ #
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(0, ttl=0)])
+ self.send_and_assert_no_replies(self.pg0, tx,
+ "MPLS TTL=0 packets forwarded")
#
# a stream with a non-zero MPLS TTL
# PG0 is in the default table
#
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip6(self.pg0, 2, 2)
- self.pg0.add_stream(tx)
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(0)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip4(self.pg0, rx, tx)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ #
+ # a stream with a non-zero MPLS TTL
+ # PG1 is in table 1
+ # we are ensuring the post-pop lookup occurs in the VRF table
+ #
+ tx = self.create_stream_labelled_ip4(self.pg1, [VppMplsLabel(0)])
+ rx = self.send_and_expect(self.pg1, tx, self.pg1)
+ self.verify_capture_ip4(self.pg1, rx, tx)
- rx = self.pg0.get_capture()
+ def test_v6_exp_null(self):
+ """ MPLS V6 Explicit NULL test """
+
+ #
+ # a stream with a non-zero MPLS TTL
+ # PG0 is in the default table
+ #
+ tx = self.create_stream_labelled_ip6(self.pg0, [VppMplsLabel(2)])
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
self.verify_capture_ip6(self.pg0, rx, tx)
#
# PG1 is in table 1
# we are ensuring the post-pop lookup occurs in the VRF table
#
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip6(self.pg1, 2, 2)
- self.pg1.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg1.get_capture()
+ tx = self.create_stream_labelled_ip6(self.pg1, [VppMplsLabel(2)])
+ rx = self.send_and_expect(self.pg1, tx, self.pg1)
self.verify_capture_ip6(self.pg0, rx, tx)
def test_deag(self):
# ping an interface in the default table
# PG0 is in the default table
#
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [34], ping=1,
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(34)],
+ ping=1,
ip_itf=self.pg0)
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg0.get_capture()
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
self.verify_capture_ip4(self.pg0, rx, tx, ping_resp=1)
#
# PG0 is in the default table. packet arrive labelled in the
# default table and egress unlabelled in the non-default
#
- self.vapi.cli("clear trace")
tx = self.create_stream_labelled_ip4(
- self.pg0, [35], ping=1, ip_itf=self.pg1)
+ self.pg0, [VppMplsLabel(35)], ping=1, ip_itf=self.pg1)
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+ self.verify_capture_ip4(self.pg1, rx, tx, ping_resp=1)
+
+ #
+ # Double pop
+ #
+ route_36_neos = VppMplsRoute(self, 36, 0,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff)])
+ route_36_neos.add_vpp_config()
+
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(36),
+ VppMplsLabel(35)],
+ ping=1, ip_itf=self.pg1)
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+ self.verify_capture_ip4(self.pg1, rx, tx, ping_resp=1)
+
+ route_36_neos.remove_vpp_config()
+ route_35_eos.remove_vpp_config()
+ route_34_eos.remove_vpp_config()
+
+ def test_interface_rx(self):
+ """ MPLS Interface Receive """
+
+ #
+ # Add a non-recursive route that will forward the traffic
+ # post-interface-rx
+ #
+ route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
+ table_id=1,
+ paths=[VppRoutePath(self.pg1.remote_ip4,
+ self.pg1.sw_if_index)])
+ route_10_0_0_1.add_vpp_config()
+
+ #
+ # An interface receive label that maps traffic to RX on interface
+ # pg1
+ # by injecting the packet in on pg0, which is in table 0
+ # doing an interface-rx on pg1 and matching a route in table 1
+ # if the packet egresses, then we must have swapped to pg1
+ # so as to have matched the route in table 1
+ #
+ route_34_eos = VppMplsRoute(self, 34, 1,
+ [VppRoutePath("0.0.0.0",
+ self.pg1.sw_if_index,
+ is_interface_rx=1)])
+ route_34_eos.add_vpp_config()
+
+ #
+ # ping an interface in the default table
+ # PG0 is in the default table
+ #
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(34)],
+ dst_ip="10.0.0.1")
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+ self.verify_capture_ip4(self.pg1, rx, tx)
+
+ def test_mcast_mid_point(self):
+ """ MPLS Multicast Mid Point """
+
+ #
+ # Add a non-recursive route that will forward the traffic
+ # post-interface-rx
+ #
+ route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
+ table_id=1,
+ paths=[VppRoutePath(self.pg1.remote_ip4,
+ self.pg1.sw_if_index)])
+ route_10_0_0_1.add_vpp_config()
+
+ #
+ # Add a mcast entry that replicate to pg2 and pg3
+ # and replicate to a interface-rx (like a bud node would)
+ #
+ route_3400_eos = VppMplsRoute(
+ self, 3400, 1,
+ [VppRoutePath(self.pg2.remote_ip4,
+ self.pg2.sw_if_index,
+ labels=[VppMplsLabel(3401)]),
+ VppRoutePath(self.pg3.remote_ip4,
+ self.pg3.sw_if_index,
+ labels=[VppMplsLabel(3402)]),
+ VppRoutePath("0.0.0.0",
+ self.pg1.sw_if_index,
+ is_interface_rx=1)],
+ is_multicast=1)
+ route_3400_eos.add_vpp_config()
+
+ #
+ # ping an interface in the default table
+ # PG0 is in the default table
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(3400, ttl=64)],
+ n=257,
+ dst_ip="10.0.0.1")
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- packet_count = self.get_packet_count_for_if_idx(self.pg0.sw_if_index)
- rx = self.pg1.get_capture(packet_count)
- self.verify_capture_ip4(self.pg1, rx, tx, ping_resp=1)
+ rx = self.pg1.get_capture(257)
+ self.verify_capture_ip4(self.pg1, rx, tx)
- route_35_eos.remove_vpp_config()
- route_34_eos.remove_vpp_config()
+ rx = self.pg2.get_capture(257)
+ self.verify_capture_labelled(self.pg2, rx, tx,
+ [VppMplsLabel(3401, ttl=63)])
+ rx = self.pg3.get_capture(257)
+ self.verify_capture_labelled(self.pg3, rx, tx,
+ [VppMplsLabel(3402, ttl=63)])
+
+ def test_mcast_head(self):
+ """ MPLS Multicast Head-end """
+
+ #
+ # Create a multicast tunnel with two replications
+ #
+ mpls_tun = VppMPLSTunnelInterface(
+ self,
+ [VppRoutePath(self.pg2.remote_ip4,
+ self.pg2.sw_if_index,
+ labels=[VppMplsLabel(42)]),
+ VppRoutePath(self.pg3.remote_ip4,
+ self.pg3.sw_if_index,
+ labels=[VppMplsLabel(43)])],
+ is_multicast=1)
+ mpls_tun.add_vpp_config()
+ mpls_tun.admin_up()
+
+ #
+ # add an unlabelled route through the new tunnel
+ #
+ route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
+ [VppRoutePath("0.0.0.0",
+ mpls_tun._sw_if_index)])
+ route_10_0_0_3.add_vpp_config()
+
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.3")
+ self.pg0.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg2.get_capture(257)
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [VppMplsLabel(42)])
+ rx = self.pg3.get_capture(257)
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [VppMplsLabel(43)])
+
+ #
+ # An an IP multicast route via the tunnel
+ # A (*,G).
+ # one accepting interface, pg0, 1 forwarding interface via the tunnel
+ #
+ route_232_1_1_1 = VppIpMRoute(
+ self,
+ "0.0.0.0",
+ "232.1.1.1", 32,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ [VppMRoutePath(self.pg0.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ VppMRoutePath(mpls_tun._sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
+ route_232_1_1_1.add_vpp_config()
+
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip4(self.pg0, "232.1.1.1")
+ self.pg0.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg2.get_capture(257)
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [VppMplsLabel(42)])
+ rx = self.pg3.get_capture(257)
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [VppMplsLabel(43)])
+
+ def test_mcast_ip4_tail(self):
+ """ MPLS IPv4 Multicast Tail """
+
+ #
+ # Add a multicast route that will forward the traffic
+ # post-disposition
+ #
+ route_232_1_1_1 = VppIpMRoute(
+ self,
+ "0.0.0.0",
+ "232.1.1.1", 32,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ table_id=1,
+ paths=[VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
+ route_232_1_1_1.add_vpp_config()
+
+ #
+ # An interface receive label that maps traffic to RX on interface
+ # pg1
+ # by injecting the packet in on pg0, which is in table 0
+ # doing an rpf-id and matching a route in table 1
+ # if the packet egresses, then we must have matched the route in
+ # table 1
+ #
+ route_34_eos = VppMplsRoute(self, 34, 1,
+ [VppRoutePath("0.0.0.0",
+ self.pg1.sw_if_index,
+ nh_table_id=1,
+ rpf_id=55)],
+ is_multicast=1)
+
+ route_34_eos.add_vpp_config()
+
+ #
+ # Drop due to interface lookup miss
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(34)],
+ dst_ip="232.1.1.1", n=1)
+ self.send_and_assert_no_replies(self.pg0, tx, "RPF-ID drop none")
+
+ #
+ # set the RPF-ID of the enrtry to match the input packet's
+ #
+ route_232_1_1_1.update_rpf_id(55)
+
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(34)],
+ dst_ip="232.1.1.1")
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+ self.verify_capture_ip4(self.pg1, rx, tx)
+
+ #
+ # disposed packets have an invalid IPv4 checkusm
+ #
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(34)],
+ dst_ip="232.1.1.1", n=65,
+ chksum=1)
+ self.send_and_assert_no_replies(self.pg0, tx, "Invalid Checksum")
+
+ #
+ # set the RPF-ID of the entry to not match the input packet's
+ #
+ route_232_1_1_1.update_rpf_id(56)
+ tx = self.create_stream_labelled_ip4(self.pg0, [VppMplsLabel(34)],
+ dst_ip="232.1.1.1")
+ self.send_and_assert_no_replies(self.pg0, tx, "RPF-ID drop 56")
+
+ def test_mcast_ip6_tail(self):
+ """ MPLS IPv6 Multicast Tail """
+
+ #
+ # Add a multicast route that will forward the traffic
+ # post-disposition
+ #
+ route_ff = VppIpMRoute(
+ self,
+ "::",
+ "ff01::1", 32,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ table_id=1,
+ paths=[VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)],
+ is_ip6=1)
+ route_ff.add_vpp_config()
+
+ #
+ # An interface receive label that maps traffic to RX on interface
+ # pg1
+ # by injecting the packet in on pg0, which is in table 0
+ # doing an rpf-id and matching a route in table 1
+ # if the packet egresses, then we must have matched the route in
+ # table 1
+ #
+ route_34_eos = VppMplsRoute(
+ self, 34, 1,
+ [VppRoutePath("::",
+ self.pg1.sw_if_index,
+ nh_table_id=1,
+ rpf_id=55,
+ proto=DpoProto.DPO_PROTO_IP6)],
+ is_multicast=1)
+
+ route_34_eos.add_vpp_config()
+
+ #
+ # Drop due to interface lookup miss
+ #
+ tx = self.create_stream_labelled_ip6(self.pg0, [VppMplsLabel(34)],
+ dst_ip="ff01::1")
+ self.send_and_assert_no_replies(self.pg0, tx, "RPF Miss")
+
+ #
+ # set the RPF-ID of the enrtry to match the input packet's
+ #
+ route_ff.update_rpf_id(55)
+
+ tx = self.create_stream_labelled_ip6(self.pg0, [VppMplsLabel(34)],
+ dst_ip="ff01::1")
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
+ self.verify_capture_ip6(self.pg1, rx, tx)
+
+ #
+ # disposed packets have hop-limit = 1
+ #
+ tx = self.create_stream_labelled_ip6(self.pg0,
+ [VppMplsLabel(34)],
+ dst_ip="ff01::1",
+ hlim=1)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_ip6_icmp(self.pg0, rx, tx)
+
+ #
+ # set the RPF-ID of the enrtry to not match the input packet's
+ #
+ route_ff.update_rpf_id(56)
+ tx = self.create_stream_labelled_ip6(self.pg0,
+ [VppMplsLabel(34)],
+ dst_ip="ff01::1")
+ self.send_and_assert_no_replies(self.pg0, tx, "RPF-ID drop 56")
+
+
+class TestMPLSDisabled(VppTestCase):
+ """ MPLS disabled """
+
+ def setUp(self):
+ super(TestMPLSDisabled, self).setUp()
+
+ # create 2 pg interfaces
+ self.create_pg_interfaces(range(2))
+
+ self.tbl = VppMplsTable(self, 0)
+ self.tbl.add_vpp_config()
+
+ # PG0 is MPLS enalbed
+ self.pg0.admin_up()
+ self.pg0.config_ip4()
+ self.pg0.resolve_arp()
+ self.pg0.enable_mpls()
+
+ # PG 1 is not MPLS enabled
+ self.pg1.admin_up()
+
+ def tearDown(self):
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ self.pg0.disable_mpls()
+ super(TestMPLSDisabled, self).tearDown()
+
+ def test_mpls_disabled(self):
+ """ MPLS Disabled """
+
+ tx = (Ether(src=self.pg1.remote_mac,
+ dst=self.pg1.local_mac) /
+ MPLS(label=32, ttl=64) /
+ IPv6(src="2001::1", dst=self.pg0.remote_ip6) /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ #
+ # A simple MPLS xconnect - eos label in label out
+ #
+ route_32_eos = VppMplsRoute(self, 32, 1,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[33])])
+ route_32_eos.add_vpp_config()
+
+ #
+ # PG1 does not forward IP traffic
+ #
+ self.send_and_assert_no_replies(self.pg1, tx, "MPLS disabled")
+
+ #
+ # MPLS enable PG1
+ #
+ self.pg1.enable_mpls()
+
+ #
+ # Now we get packets through
+ #
+ self.pg1.add_stream(tx)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg0.get_capture(1)
+
+ #
+ # Disable PG1
+ #
+ self.pg1.disable_mpls()
+
+ #
+ # PG1 does not forward IP traffic
+ #
+ self.send_and_assert_no_replies(self.pg1, tx, "IPv6 disabled")
+ self.send_and_assert_no_replies(self.pg1, tx, "IPv6 disabled")
+
+
+class TestMPLSPIC(VppTestCase):
+ """ MPLS PIC edge convergence """
+
+ def setUp(self):
+ super(TestMPLSPIC, self).setUp()
+
+ # create 2 pg interfaces
+ self.create_pg_interfaces(range(4))
+
+ mpls_tbl = VppMplsTable(self, 0)
+ mpls_tbl.add_vpp_config()
+ tbl4 = VppIpTable(self, 1)
+ tbl4.add_vpp_config()
+ tbl6 = VppIpTable(self, 1, is_ip6=1)
+ tbl6.add_vpp_config()
+
+ # core links
+ self.pg0.admin_up()
+ self.pg0.config_ip4()
+ self.pg0.resolve_arp()
+ self.pg0.enable_mpls()
+ self.pg1.admin_up()
+ self.pg1.config_ip4()
+ self.pg1.resolve_arp()
+ self.pg1.enable_mpls()
+
+ # VRF (customer facing) link
+ self.pg2.admin_up()
+ self.pg2.set_table_ip4(1)
+ self.pg2.config_ip4()
+ self.pg2.resolve_arp()
+ self.pg2.set_table_ip6(1)
+ self.pg2.config_ip6()
+ self.pg2.resolve_ndp()
+ self.pg3.admin_up()
+ self.pg3.set_table_ip4(1)
+ self.pg3.config_ip4()
+ self.pg3.resolve_arp()
+ self.pg3.set_table_ip6(1)
+ self.pg3.config_ip6()
+ self.pg3.resolve_ndp()
+
+ def tearDown(self):
+ self.pg0.disable_mpls()
+ self.pg1.disable_mpls()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.unconfig_ip6()
+ i.set_table_ip4(0)
+ i.set_table_ip6(0)
+ i.admin_down()
+ super(TestMPLSPIC, self).tearDown()
+
+ def test_mpls_ibgp_pic(self):
+ """ MPLS iBGP PIC edge convergence
+
+ 1) setup many iBGP VPN routes via a pair of iBGP peers.
+ 2) Check EMCP forwarding to these peers
+ 3) withdraw the IGP route to one of these peers.
+ 4) check forwarding continues to the remaining peer
+ """
+
+ #
+ # IGP+LDP core routes
+ #
+ core_10_0_0_45 = VppIpRoute(self, "10.0.0.45", 32,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[45])])
+ core_10_0_0_45.add_vpp_config()
+
+ core_10_0_0_46 = VppIpRoute(self, "10.0.0.46", 32,
+ [VppRoutePath(self.pg1.remote_ip4,
+ self.pg1.sw_if_index,
+ labels=[46])])
+ core_10_0_0_46.add_vpp_config()
+
+ #
+ # Lot's of VPN routes. We need more the 64 so VPP will build
+ # the fast convergence indirection
+ #
+ vpn_routes = []
+ pkts = []
+ for ii in range(64):
+ dst = "192.168.1.%d" % ii
+ vpn_routes.append(VppIpRoute(self, dst, 32,
+ [VppRoutePath("10.0.0.45",
+ 0xffffffff,
+ labels=[145],
+ is_resolve_host=1),
+ VppRoutePath("10.0.0.46",
+ 0xffffffff,
+ labels=[146],
+ is_resolve_host=1)],
+ table_id=1))
+ vpn_routes[ii].add_vpp_config()
+
+ pkts.append(Ether(dst=self.pg2.local_mac,
+ src=self.pg2.remote_mac) /
+ IP(src=self.pg2.remote_ip4, dst=dst) /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ #
+ # Send the packet stream (one pkt to each VPN route)
+ # - expect a 50-50 split of the traffic
+ #
+ self.pg2.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg0._get_capture(1)
+ rx1 = self.pg1._get_capture(1)
+
+ # not testig the LB hashing algorithm so we're not concerned
+ # with the split ratio, just as long as neither is 0
+ self.assertNotEqual(0, len(rx0))
+ self.assertNotEqual(0, len(rx1))
+
+ #
+ # use a test CLI command to stop the FIB walk process, this
+ # will prevent the FIB converging the VPN routes and thus allow
+ # us to probe the interim (psot-fail, pre-converge) state
+ #
+ self.vapi.ppcli("test fib-walk-process disable")
+
+ #
+ # Withdraw one of the IGP routes
+ #
+ core_10_0_0_46.remove_vpp_config()
+
+ #
+ # now all packets should be forwarded through the remaining peer
+ #
+ self.vapi.ppcli("clear trace")
+ self.pg2.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg0.get_capture(len(pkts))
+
+ #
+ # enable the FIB walk process to converge the FIB
+ #
+ self.vapi.ppcli("test fib-walk-process enable")
+
+ #
+ # packets should still be forwarded through the remaining peer
+ #
+ self.pg2.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg0.get_capture(64)
+
+ #
+ # Add the IGP route back and we return to load-balancing
+ #
+ core_10_0_0_46.add_vpp_config()
+
+ self.pg2.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg0._get_capture(1)
+ rx1 = self.pg1._get_capture(1)
+ self.assertNotEqual(0, len(rx0))
+ self.assertNotEqual(0, len(rx1))
+
+ def test_mpls_ebgp_pic(self):
+ """ MPLS eBGP PIC edge convergence
+
+ 1) setup many eBGP VPN routes via a pair of eBGP peers
+ 2) Check EMCP forwarding to these peers
+ 3) withdraw one eBGP path - expect LB across remaining eBGP
+ """
+
+ #
+ # Lot's of VPN routes. We need more the 64 so VPP will build
+ # the fast convergence indirection
+ #
+ vpn_routes = []
+ vpn_bindings = []
+ pkts = []
+ for ii in range(64):
+ dst = "192.168.1.%d" % ii
+ local_label = 1600 + ii
+ vpn_routes.append(VppIpRoute(self, dst, 32,
+ [VppRoutePath(self.pg2.remote_ip4,
+ 0xffffffff,
+ nh_table_id=1,
+ is_resolve_attached=1),
+ VppRoutePath(self.pg3.remote_ip4,
+ 0xffffffff,
+ nh_table_id=1,
+ is_resolve_attached=1)],
+ table_id=1))
+ vpn_routes[ii].add_vpp_config()
+
+ vpn_bindings.append(VppMplsIpBind(self, local_label, dst, 32,
+ ip_table_id=1))
+ vpn_bindings[ii].add_vpp_config()
+
+ pkts.append(Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ MPLS(label=local_label, ttl=64) /
+ IP(src=self.pg0.remote_ip4, dst=dst) /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg2._get_capture(1)
+ rx1 = self.pg3._get_capture(1)
+ self.assertNotEqual(0, len(rx0))
+ self.assertNotEqual(0, len(rx1))
+
+ #
+ # use a test CLI command to stop the FIB walk process, this
+ # will prevent the FIB converging the VPN routes and thus allow
+ # us to probe the interim (psot-fail, pre-converge) state
+ #
+ self.vapi.ppcli("test fib-walk-process disable")
+
+ #
+ # withdraw the connected prefix on the interface.
+ #
+ self.pg2.unconfig_ip4()
+
+ #
+ # now all packets should be forwarded through the remaining peer
+ #
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg3.get_capture(len(pkts))
+
+ #
+ # enable the FIB walk process to converge the FIB
+ #
+ self.vapi.ppcli("test fib-walk-process enable")
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg3.get_capture(len(pkts))
+
+ #
+ # put the connecteds back
+ #
+ self.pg2.config_ip4()
+
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg2._get_capture(1)
+ rx1 = self.pg3._get_capture(1)
+ self.assertNotEqual(0, len(rx0))
+ self.assertNotEqual(0, len(rx1))
+
+ def test_mpls_v6_ebgp_pic(self):
+ """ MPLSv6 eBGP PIC edge convergence
+
+ 1) setup many eBGP VPNv6 routes via a pair of eBGP peers
+ 2) Check EMCP forwarding to these peers
+ 3) withdraw one eBGP path - expect LB across remaining eBGP
+ """
+
+ #
+ # Lot's of VPN routes. We need more the 64 so VPP will build
+ # the fast convergence indirection
+ #
+ vpn_routes = []
+ vpn_bindings = []
+ pkts = []
+ for ii in range(64):
+ dst = "3000::%d" % ii
+ local_label = 1600 + ii
+ vpn_routes.append(VppIpRoute(
+ self, dst, 128,
+ [VppRoutePath(self.pg2.remote_ip6,
+ 0xffffffff,
+ nh_table_id=1,
+ is_resolve_attached=1,
+ proto=DpoProto.DPO_PROTO_IP6),
+ VppRoutePath(self.pg3.remote_ip6,
+ 0xffffffff,
+ nh_table_id=1,
+ proto=DpoProto.DPO_PROTO_IP6,
+ is_resolve_attached=1)],
+ table_id=1,
+ is_ip6=1))
+ vpn_routes[ii].add_vpp_config()
+
+ vpn_bindings.append(VppMplsIpBind(self, local_label, dst, 128,
+ ip_table_id=1,
+ is_ip6=1))
+ vpn_bindings[ii].add_vpp_config()
+
+ pkts.append(Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ MPLS(label=local_label, ttl=64) /
+ IPv6(src=self.pg0.remote_ip6, dst=dst) /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg2._get_capture(1)
+ rx1 = self.pg3._get_capture(1)
+ self.assertNotEqual(0, len(rx0))
+ self.assertNotEqual(0, len(rx1))
+
+ #
+ # use a test CLI command to stop the FIB walk process, this
+ # will prevent the FIB converging the VPN routes and thus allow
+ # us to probe the interim (psot-fail, pre-converge) state
+ #
+ self.vapi.ppcli("test fib-walk-process disable")
+
+ #
+ # withdraw the connected prefix on the interface.
+ # and shutdown the interface so the ND cache is flushed.
+ #
+ self.pg2.unconfig_ip6()
+ self.pg2.admin_down()
+
+ #
+ # now all packets should be forwarded through the remaining peer
+ #
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg3.get_capture(len(pkts))
+
+ #
+ # enable the FIB walk process to converge the FIB
+ #
+ self.vapi.ppcli("test fib-walk-process enable")
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg3.get_capture(len(pkts))
+
+ #
+ # put the connecteds back
+ #
+ self.pg2.admin_up()
+ self.pg2.config_ip6()
+
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg2._get_capture(1)
+ rx1 = self.pg3._get_capture(1)
+ self.assertNotEqual(0, len(rx0))
+ self.assertNotEqual(0, len(rx1))
+
+
+class TestMPLSL2(VppTestCase):
+ """ MPLS-L2 """
+
+ def setUp(self):
+ super(TestMPLSL2, self).setUp()
+
+ # create 2 pg interfaces
+ self.create_pg_interfaces(range(2))
+
+ # create the default MPLS table
+ self.tables = []
+ tbl = VppMplsTable(self, 0)
+ tbl.add_vpp_config()
+ self.tables.append(tbl)
+
+ # use pg0 as the core facing interface
+ self.pg0.admin_up()
+ self.pg0.config_ip4()
+ self.pg0.resolve_arp()
+ self.pg0.enable_mpls()
+
+ # use the other 2 for customer facing L2 links
+ for i in self.pg_interfaces[1:]:
+ i.admin_up()
+
+ def tearDown(self):
+ for i in self.pg_interfaces[1:]:
+ i.admin_down()
+
+ self.pg0.disable_mpls()
+ self.pg0.unconfig_ip4()
+ self.pg0.admin_down()
+ super(TestMPLSL2, self).tearDown()
+
+ def verify_capture_tunneled_ethernet(self, capture, sent, mpls_labels):
+ capture = verify_filter(capture, sent)
+
+ self.assertEqual(len(capture), len(sent))
+
+ for i in range(len(capture)):
+ tx = sent[i]
+ rx = capture[i]
+
+ # the MPLS TTL is 255 since it enters a new tunnel
+ verify_mpls_stack(self, rx, mpls_labels)
+
+ tx_eth = tx[Ether]
+ rx_eth = Ether(str(rx[MPLS].payload))
+
+ self.assertEqual(rx_eth.src, tx_eth.src)
+ self.assertEqual(rx_eth.dst, tx_eth.dst)
+
+ def test_vpws(self):
+ """ Virtual Private Wire Service """
+
+ #
+ # Create an MPLS tunnel that pushes 1 label
+ # For Ethernet over MPLS the uniform mode is irrelevant since ttl/cos
+ # information is not in the packet, but we test it works anyway
+ #
+ mpls_tun_1 = VppMPLSTunnelInterface(
+ self,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(42, MplsLspMode.UNIFORM)])],
+ is_l2=1)
+ mpls_tun_1.add_vpp_config()
+ mpls_tun_1.admin_up()
+
+ #
+ # Create a label entry to for 55 that does L2 input to the tunnel
+ #
+ route_55_eos = VppMplsRoute(
+ self, 55, 1,
+ [VppRoutePath("0.0.0.0",
+ mpls_tun_1.sw_if_index,
+ is_interface_rx=1,
+ proto=DpoProto.DPO_PROTO_ETHERNET)])
+ route_55_eos.add_vpp_config()
+
+ #
+ # Cross-connect the tunnel with one of the customers L2 interfaces
+ #
+ self.vapi.sw_interface_set_l2_xconnect(self.pg1.sw_if_index,
+ mpls_tun_1.sw_if_index,
+ enable=1)
+ self.vapi.sw_interface_set_l2_xconnect(mpls_tun_1.sw_if_index,
+ self.pg1.sw_if_index,
+ enable=1)
+
+ #
+ # inject a packet from the core
+ #
+ pcore = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ MPLS(label=55, ttl=64) /
+ Ether(dst="00:00:de:ad:ba:be",
+ src="00:00:de:ad:be:ef") /
+ IP(src="10.10.10.10", dst="11.11.11.11") /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ tx0 = pcore * 65
+ rx0 = self.send_and_expect(self.pg0, tx0, self.pg1)
+ payload = pcore[MPLS].payload
+
+ self.assertEqual(rx0[0][Ether].dst, payload[Ether].dst)
+ self.assertEqual(rx0[0][Ether].src, payload[Ether].src)
+
+ #
+ # Inject a packet from the custoer/L2 side
+ #
+ tx1 = pcore[MPLS].payload * 65
+ rx1 = self.send_and_expect(self.pg1, tx1, self.pg0)
+
+ self.verify_capture_tunneled_ethernet(rx1, tx1, [VppMplsLabel(42)])
+
+ def test_vpls(self):
+ """ Virtual Private LAN Service """
+ #
+ # Create an L2 MPLS tunnel
+ #
+ mpls_tun = VppMPLSTunnelInterface(
+ self,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(42)])],
+ is_l2=1)
+ mpls_tun.add_vpp_config()
+ mpls_tun.admin_up()
+
+ #
+ # Create a label entry to for 55 that does L2 input to the tunnel
+ #
+ route_55_eos = VppMplsRoute(
+ self, 55, 1,
+ [VppRoutePath("0.0.0.0",
+ mpls_tun.sw_if_index,
+ is_interface_rx=1,
+ proto=DpoProto.DPO_PROTO_ETHERNET)])
+ route_55_eos.add_vpp_config()
+
+ #
+ # add to tunnel to the customers bridge-domain
+ #
+ self.vapi.sw_interface_set_l2_bridge(mpls_tun.sw_if_index,
+ bd_id=1)
+ self.vapi.sw_interface_set_l2_bridge(self.pg1.sw_if_index,
+ bd_id=1)
+
+ #
+ # Packet from the customer interface and from the core
+ #
+ p_cust = (Ether(dst="00:00:de:ad:ba:be",
+ src="00:00:de:ad:be:ef") /
+ IP(src="10.10.10.10", dst="11.11.11.11") /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+ p_core = (Ether(src="00:00:de:ad:ba:be",
+ dst="00:00:de:ad:be:ef") /
+ IP(dst="10.10.10.10", src="11.11.11.11") /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ #
+ # The BD is learning, so send in one of each packet to learn
+ #
+ p_core_encap = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ MPLS(label=55, ttl=64) /
+ p_core)
+
+ self.pg1.add_stream(p_cust)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.pg0.add_stream(p_core_encap)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # we've learnt this so expect it be be forwarded
+ rx0 = self.pg1.get_capture(1)
+
+ self.assertEqual(rx0[0][Ether].dst, p_core[Ether].dst)
+ self.assertEqual(rx0[0][Ether].src, p_core[Ether].src)
+
+ #
+ # now a stream in each direction
+ #
+ self.pg1.add_stream(p_cust * 65)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg0.get_capture(65)
+
+ self.verify_capture_tunneled_ethernet(rx0, p_cust*65,
+ [VppMplsLabel(42)])
+
+ #
+ # remove interfaces from customers bridge-domain
+ #
+ self.vapi.sw_interface_set_l2_bridge(mpls_tun.sw_if_index,
+ bd_id=1,
+ enable=0)
+ self.vapi.sw_interface_set_l2_bridge(self.pg1.sw_if_index,
+ bd_id=1,
+ enable=0)
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff