-#!/usr/bin/env python
+#!/usr/bin/env python3
import unittest
import socket
from framework import VppTestCase, VppTestRunner
+from vpp_ip import DpoProto, INVALID_INDEX
from vpp_ip_route import VppIpRoute, VppRoutePath, VppMplsRoute, \
VppMplsIpBind, VppIpMRoute, VppMRoutePath, \
- MRouteItfFlags, MRouteEntryFlags
+ VppIpTable, VppMplsTable, \
+ VppMplsLabel, MplsLspMode, find_mpls_route, \
+ FibPathProto, FibPathType, FibPathFlags, VppMplsLabel, MplsLspMode
from vpp_mpls_tunnel_interface import VppMPLSTunnelInterface
+from vpp_papi import VppEnum
+import scapy.compat
from scapy.packet import Raw
-from scapy.layers.l2 import Ether
+from scapy.layers.l2 import Ether, ARP
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
+NUM_PKTS = 67
+
+# scapy removed these attributes.
+# we asked that they be restored: https://github.com/secdev/scapy/pull/1878
+# semantic names have more meaning than numbers. so here they are.
+ARP.who_has = 1
+ARP.is_at = 2
+
+
+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 """
+ @classmethod
+ def setUpClass(cls):
+ super(TestMPLS, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestMPLS, cls).tearDownClass()
+
def setUp(self):
super(TestMPLS, self).setUp()
# 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,
dst_ip=None,
+ chksum=None,
+ ip_ttl=64,
n=257):
self.reset_packet_infos()
pkts = []
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:
if not dst_ip:
- p = (p / IP(src=src_if.local_ip4, dst=src_if.remote_ip4) /
+ 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) /
+ 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, payload_size=None):
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()
+ if payload_size:
+ self.extend_packet(p, payload_size)
pkts.append(p)
return pkts
- def create_stream_labelled_ip6(self, src_if, mpls_label, mpls_ttl,
- dst_ip=None):
- if dst_ip is None:
- dst_ip = src_if.remote_ip6
+ 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=dst_ip) /
+ 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)
- def verify_capture_ip4(self, src_if, capture, sent, ping_resp=0):
+ 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,
+ 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,
- ttl=255, top=None):
- if top is None:
- top = len(mpls_labels) - 1
+ 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, ttl, top)
+ 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 send_and_assert_no_replies(self, intf, pkts, remark):
- intf.add_stream(pkts)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- for i in self.pg_interfaces:
- i.assert_nothing_captured(remark=remark)
+ 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
+
+ def verify_capture_fragmented_labelled_ip4(self, src_if, capture, sent,
+ mpls_labels, ip_ttl=None):
+ try:
+ capture = verify_filter(capture, sent)
+
+ for i in range(len(capture)):
+ tx = sent[0]
+ rx = capture[i]
+ tx_ip = tx[IP]
+ rx_ip = rx[IP]
+
+ verify_mpls_stack(self, rx, 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 test_swap(self):
""" MPLS label swap tests """
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)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ 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)])
- rx = self.pg0.get_capture()
- self.verify_capture_labelled(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)
+ 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)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ #
+ # 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()
- rx = self.pg0.get_capture()
- self.verify_capture_labelled(self.pg0, rx, tx, [33, 99])
+ 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 checksum
+ #
+ 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=[])],
+ eos_proto=FibPathProto.FIB_PATH_NH_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)])],
+ eos_proto=FibPathProto.FIB_PATH_NH_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)])],
+ eos_proto=FibPathProto.FIB_PATH_NH_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()
+ self.logger.info(self.vapi.cli("sh mpls fib 34"))
- 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(self.pg0, rx, tx, [33, 44, 45], num=2)
+ #
+ # 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,
+ labels=[VppMplsLabel(32,
+ mode=MplsLspMode.UNIFORM)])])
+ 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)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+ self.verify_capture_labelled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(32),
+ VppMplsLabel(44)])
- 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, 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)
+ 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.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ self.assertEqual(route_11_0_0_2.get_stats_to()['packets'], 257)
- 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'], 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_imposition_fragmentation(self):
+ """ MPLS label imposition fragmentation test """
#
- # Create a tunnel with a single out label
+ # Add a ipv4 non-recursive route with a single out label
#
- mpls_tun = VppMPLSTunnelInterface(self,
- [VppRoutePath(self.pg0.remote_ip4,
- self.pg0.sw_if_index,
- labels=[44, 46])])
+ route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ 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
+ #
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.1")
+ for i in range(0, 257):
+ self.extend_packet(tx[i], 10000)
+
+ #
+ # 5 fragments per packet (257*5=1285)
+ #
+ rx = self.send_and_expect(self.pg0, tx, self.pg0, 1285)
+ self.verify_capture_fragmented_labelled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(32)])
+
+ #
+ # cleanup
+ #
+ route_10_0_0_1.remove_vpp_config()
+
+ def test_tunnel_pipe(self):
+ """ MPLS Tunnel Tests - Pipe """
+
+ #
+ # Create a tunnel with two out labels
+ #
+ 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()
self.pg_start()
rx = self.pg0.get_capture()
- self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [44, 46])
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(44),
+ VppMplsLabel(46)])
#
# add a labelled route through the new tunnel
self.pg_start()
rx = self.pg0.get_capture()
- self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [44, 46, 33],
- ttl=63, top=2)
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(44),
+ VppMplsLabel(46),
+ VppMplsLabel(33, ttl=255)])
- def test_v4_exp_null(self):
- """ MPLS V4 Explicit NULL test """
+ #
+ # change tunnel's MTU to a low value
+ #
+ mpls_tun.set_l3_mtu(1200)
+
+ # send IP into the tunnel to be fragmented
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.3",
+ payload_size=1500)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0, len(tx)*2)
+
+ fake_tx = []
+ for p in tx:
+ fake_tx.append(p)
+ fake_tx.append(p)
+ self.verify_capture_tunneled_ip4(self.pg0, rx, fake_tx,
+ [VppMplsLabel(44),
+ VppMplsLabel(46)])
+
+ # send MPLS into the tunnel to be fragmented
+ tx = self.create_stream_ip4(self.pg0, "10.0.0.4",
+ payload_size=1500)
+ rx = self.send_and_expect(self.pg0, tx, self.pg0, len(tx)*2)
+
+ fake_tx = []
+ for p in tx:
+ fake_tx.append(p)
+ fake_tx.append(p)
+ self.verify_capture_tunneled_ip4(self.pg0, rx, fake_tx,
+ [VppMplsLabel(44),
+ VppMplsLabel(46),
+ VppMplsLabel(33, ttl=255)])
+
+ def test_tunnel_uniform(self):
+ """ MPLS Tunnel Tests - Uniform """
#
- # The first test case has an MPLS TTL of 0
- # all packet should be dropped
+ # 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], 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()
- 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, ttl=32),
+ VppMplsLabel(46, ttl=23)])
#
- # a stream with a non-zero MPLS TTL
- # PG0 is in the default table
+ # add a labelled route through the new tunnel
#
- tx = self.create_stream_labelled_ip4(self.pg0, [0])
+ 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_ip4(self.pg0, "10.0.0.4")
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
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):
+ """ MPLS 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_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
+ #
+ 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)
#
# 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_ip4(self.pg1, [0])
- self.pg1.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)
+ 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)
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
#
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip6(self.pg0, 2, 2)
- 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_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.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ 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)
- packet_count = self.get_packet_count_for_if_idx(self.pg0.sw_if_index)
- rx = self.pg1.get_capture(packet_count)
+ #
+ # 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()
# 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 = VppMplsRoute(
+ self, 34, 1,
+ [VppRoutePath("0.0.0.0",
+ self.pg1.sw_if_index,
+ type=FibPathType.FIB_PATH_TYPE_INTERFACE_RX)])
route_34_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, [34], n=257,
+ tx = self.create_stream_labelled_ip4(self.pg0,
+ [VppMplsLabel(34)],
dst_ip="10.0.0.1")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg1.get_capture(257)
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
self.verify_capture_ip4(self.pg1, rx, tx)
def test_mcast_mid_point(self):
# 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=[3401]),
- VppRoutePath(self.pg3.remote_ip4,
- self.pg3.sw_if_index,
- labels=[3402]),
- VppRoutePath("0.0.0.0",
- self.pg1.sw_if_index,
- is_interface_rx=1)],
- is_multicast=1)
+ 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,
+ type=FibPathType.FIB_PATH_TYPE_INTERFACE_RX)],
+ is_multicast=1)
route_3400_eos.add_vpp_config()
#
# PG0 is in the default table
#
self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [3400], n=257,
+ 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.verify_capture_ip4(self.pg1, rx, tx)
rx = self.pg2.get_capture(257)
- self.verify_capture_labelled(self.pg2, rx, tx, [3401])
+ 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, [3402])
+ self.verify_capture_labelled(self.pg3, rx, tx,
+ [VppMplsLabel(3402, ttl=63)])
def test_mcast_head(self):
""" MPLS Multicast Head-end """
+ MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
+ MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
+
#
# Create a multicast tunnel with two replications
#
- mpls_tun = VppMPLSTunnelInterface(self,
- [VppRoutePath(self.pg2.remote_ip4,
- self.pg2.sw_if_index,
- labels=[42]),
- VppRoutePath(self.pg3.remote_ip4,
- self.pg3.sw_if_index,
- labels=[43])],
- is_multicast=1)
+ 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()
self.pg_start()
rx = self.pg2.get_capture(257)
- self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [42])
+ 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, [43])
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [VppMplsLabel(43)])
#
# An an IP multicast route via the tunnel
self,
"0.0.0.0",
"232.1.1.1", 32,
- MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
[VppMRoutePath(self.pg0.sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ MRouteItfFlags.MFIB_API_ITF_FLAG_ACCEPT),
VppMRoutePath(mpls_tun._sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
+ MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD)])
route_232_1_1_1.add_vpp_config()
+ self.logger.info(self.vapi.cli("sh ip mfib index 0"))
self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "232.1.1.1")
self.pg_start()
rx = self.pg2.get_capture(257)
- self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [42])
+ 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, [43])
+ self.verify_capture_tunneled_ip4(self.pg0, rx, tx, [VppMplsLabel(43)])
def test_mcast_ip4_tail(self):
""" MPLS IPv4 Multicast Tail """
+ MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
+ MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
+
#
# Add a multicast route that will forward the traffic
# post-disposition
self,
"0.0.0.0",
"232.1.1.1", 32,
- MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
table_id=1,
paths=[VppMRoutePath(self.pg1.sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
+ MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD)])
route_232_1_1_1.add_vpp_config()
#
# 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 = VppMplsRoute(
+ self, 34, 1,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ nh_table_id=1,
+ rpf_id=55)],
+ is_multicast=1,
+ eos_proto=FibPathProto.FIB_PATH_NH_PROTO_IP4)
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, [34],
+ 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
+ # set the RPF-ID of the entry to match the input packet's
#
route_232_1_1_1.update_rpf_id(55)
+ self.logger.info(self.vapi.cli("sh ip mfib index 1 232.1.1.1"))
- self.vapi.cli("clear trace")
- tx = self.create_stream_labelled_ip4(self.pg0, [34],
- dst_ip="232.1.1.1", n=257)
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg1.get_capture(257)
+ 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)
#
- # set the RPF-ID of the enrtry to not match the input packet's
+ # disposed packets have an invalid IPv4 checksum
+ #
+ 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, [34],
+ 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 """
+ MRouteItfFlags = VppEnum.vl_api_mfib_itf_flags_t
+ MRouteEntryFlags = VppEnum.vl_api_mfib_entry_flags_t
+
#
# Add a multicast route that will forward the traffic
# post-disposition
self,
"::",
"ff01::1", 32,
- MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ MRouteEntryFlags.MFIB_API_ENTRY_FLAG_NONE,
table_id=1,
paths=[VppMRoutePath(self.pg1.sw_if_index,
- MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)],
- is_ip6=1)
+ MRouteItfFlags.MFIB_API_ITF_FLAG_FORWARD,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)])
route_ff.add_vpp_config()
#
route_34_eos = VppMplsRoute(
self, 34, 1,
[VppRoutePath("::",
- self.pg1.sw_if_index,
+ 0xffffffff,
nh_table_id=1,
- rpf_id=55,
- is_ip6=1)],
- is_multicast=1)
+ rpf_id=55)],
+ is_multicast=1,
+ eos_proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)
route_34_eos.add_vpp_config()
#
# Drop due to interface lookup miss
#
- tx = self.create_stream_labelled_ip6(self.pg0, [34], 255,
+ 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
+ # set the RPF-ID of the entry to match the input packet's
#
route_ff.update_rpf_id(55)
- tx = self.create_stream_labelled_ip6(self.pg0, [34], 255,
+ tx = self.create_stream_labelled_ip6(self.pg0, [VppMplsLabel(34)],
dst_ip="ff01::1")
- self.pg0.add_stream(tx)
-
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg1.get_capture(257)
+ rx = self.send_and_expect(self.pg0, tx, self.pg1)
self.verify_capture_ip6(self.pg1, rx, tx)
#
- # set the RPF-ID of the enrtry to not match the input packet's
+ # 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 entry to not match the input packet's
#
route_ff.update_rpf_id(56)
- tx = self.create_stream_labelled_ip6(self.pg0, [34], 225,
+ 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")
+ def test_6pe(self):
+ """ MPLS 6PE """
+
+ #
+ # Add a non-recursive route with a single out label
+ #
+ route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(45)])])
+ route_10_0_0_1.add_vpp_config()
+
+ # bind a local label to the route
+ binding = VppMplsIpBind(self, 44, "10.0.0.1", 32)
+ binding.add_vpp_config()
+
+ #
+ # a labelled v6 route that resolves through the v4
+ #
+ route_2001_3 = VppIpRoute(
+ self, "2001::3", 128,
+ [VppRoutePath("10.0.0.1",
+ INVALID_INDEX,
+ labels=[VppMplsLabel(32)])])
+ route_2001_3.add_vpp_config()
+
+ tx = self.create_stream_ip6(self.pg0, "2001::3")
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+
+ self.verify_capture_labelled_ip6(self.pg0, rx, tx,
+ [VppMplsLabel(45),
+ VppMplsLabel(32)])
+
+ #
+ # and a v4 recursive via the v6
+ #
+ route_20_3 = VppIpRoute(
+ self, "20.0.0.3", 32,
+ [VppRoutePath("2001::3",
+ INVALID_INDEX,
+ labels=[VppMplsLabel(99)])])
+ route_20_3.add_vpp_config()
+
+ tx = self.create_stream_ip4(self.pg0, "20.0.0.3")
+ rx = self.send_and_expect(self.pg0, tx, self.pg0)
+
+ self.verify_capture_labelled_ip4(self.pg0, rx, tx,
+ [VppMplsLabel(45),
+ VppMplsLabel(32),
+ VppMplsLabel(99)])
+
class TestMPLSDisabled(VppTestCase):
""" MPLS disabled """
+ @classmethod
+ def setUpClass(cls):
+ super(TestMPLSDisabled, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestMPLSDisabled, cls).tearDownClass()
+
def setUp(self):
super(TestMPLSDisabled, self).setUp()
# create 2 pg interfaces
self.create_pg_interfaces(range(2))
- # PG0 is MPLS enalbed
+ self.tbl = VppMplsTable(self, 0)
+ self.tbl.add_vpp_config()
+
+ # PG0 is MPLS enabled
self.pg0.admin_up()
self.pg0.config_ip4()
self.pg0.resolve_arp()
self.pg1.admin_up()
def tearDown(self):
- super(TestMPLSDisabled, self).tearDown()
for i in self.pg_interfaces:
i.unconfig_ip4()
i.admin_down()
- def send_and_assert_no_replies(self, intf, pkts, remark):
- intf.add_stream(pkts)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- for i in self.pg_interfaces:
- i.get_capture(0)
- i.assert_nothing_captured(remark=remark)
+ self.pg0.disable_mpls()
+ super(TestMPLSDisabled, self).tearDown()
def test_mpls_disabled(self):
""" MPLS Disabled """
MPLS(label=32, ttl=64) /
IPv6(src="2001::1", dst=self.pg0.remote_ip6) /
UDP(sport=1234, dport=1234) /
- Raw('\xa5' * 100))
+ Raw(b'\xa5' * 100))
#
# A simple MPLS xconnect - eos label in label out
class TestMPLSPIC(VppTestCase):
- """ MPLS PIC edge convergence """
+ """ MPLS Prefix-Independent Convergence (PIC) edge convergence """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestMPLSPIC, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestMPLSPIC, cls).tearDownClass()
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.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_ndp()
def tearDown(self):
- super(TestMPLSPIC, self).tearDown()
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
+ """ MPLS iBGP Prefix-Independent Convergence (PIC) edge convergence
1) setup many iBGP VPN routes via a pair of iBGP peers.
2) Check EMCP forwarding to these peers
#
vpn_routes = []
pkts = []
- for ii in range(64):
+ for ii in range(NUM_PKTS):
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.append(VppIpRoute(
+ self, dst, 32,
+ [VppRoutePath(
+ "10.0.0.45",
+ 0xffffffff,
+ labels=[145],
+ flags=FibPathFlags.FIB_PATH_FLAG_RESOLVE_VIA_HOST),
+ VppRoutePath(
+ "10.0.0.46",
+ 0xffffffff,
+ labels=[146],
+ flags=FibPathFlags.FIB_PATH_FLAG_RESOLVE_VIA_HOST)],
+ 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))
+ Raw(b'\xa5' * 100))
#
# Send the packet stream (one pkt to each VPN route)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx0 = self.pg0._get_capture(1)
- rx1 = self.pg1._get_capture(1)
+ rx0 = self.pg0._get_capture(NUM_PKTS)
+ rx1 = self.pg1._get_capture(NUM_PKTS)
- # not testig the LB hashing algorithm so we're not concerned
+ # not testing 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))
+ self.assertEqual(len(pkts), len(rx0) + len(rx1),
+ "Expected all (%s) packets across both ECMP paths. "
+ "rx0: %s rx1: %s." % (len(pkts), len(rx0), 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
+ # us to probe the interim (post-fail, pre-converge) state
#
self.vapi.ppcli("test fib-walk-process disable")
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx0 = self.pg0.get_capture(len(pkts))
+ rx0 = self.pg0.get_capture(NUM_PKTS)
+ self.assertEqual(len(pkts), len(rx0),
+ "Expected all (%s) packets across single path. "
+ "rx0: %s." % (len(pkts), len(rx0)))
#
# enable the FIB walk process to converge the FIB
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx0 = self.pg0.get_capture(64)
+ rx0 = self.pg0.get_capture(NUM_PKTS)
+ self.assertEqual(len(pkts), len(rx0),
+ "Expected all (%s) packets across single path. "
+ "rx0: %s." % (len(pkts), len(rx0)))
#
# Add the IGP route back and we return to load-balancing
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx0 = self.pg0._get_capture(1)
- rx1 = self.pg1._get_capture(1)
+ rx0 = self.pg0._get_capture(NUM_PKTS)
+ rx1 = self.pg1._get_capture(NUM_PKTS)
self.assertNotEqual(0, len(rx0))
self.assertNotEqual(0, len(rx1))
+ self.assertEqual(len(pkts), len(rx0) + len(rx1),
+ "Expected all (%s) packets across both ECMP paths. "
+ "rx0: %s rx1: %s." % (len(pkts), len(rx0), len(rx1)))
def test_mpls_ebgp_pic(self):
- """ MPLS eBGP PIC edge convergence
+ """ MPLS eBGP Prefix-Independent Convergence (PIC) edge convergence
- 1) setup many eBGP VPN routes via a pair of eBGP peers
+ 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
"""
vpn_routes = []
vpn_bindings = []
pkts = []
- for ii in range(64):
+ for ii in range(NUM_PKTS):
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.append(VppIpRoute(
+ self, dst, 32,
+ [VppRoutePath(
+ self.pg2.remote_ip4,
+ 0xffffffff,
+ nh_table_id=1,
+ flags=FibPathFlags.FIB_PATH_FLAG_RESOLVE_VIA_ATTACHED),
+ VppRoutePath(
+ self.pg3.remote_ip4,
+ 0xffffffff,
+ nh_table_id=1,
+ flags=FibPathFlags.FIB_PATH_FLAG_RESOLVE_VIA_ATTACHED)],
+ table_id=1))
vpn_routes[ii].add_vpp_config()
vpn_bindings.append(VppMplsIpBind(self, local_label, dst, 32,
MPLS(label=local_label, ttl=64) /
IP(src=self.pg0.remote_ip4, dst=dst) /
UDP(sport=1234, dport=1234) /
- Raw('\xa5' * 100))
+ Raw(b'\xa5' * 100))
+ #
+ # Send the packet stream (one pkt to each VPN route)
+ # - expect a 50-50 split of the traffic
+ #
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)
+ rx0 = self.pg2._get_capture(NUM_PKTS)
+ rx1 = self.pg3._get_capture(NUM_PKTS)
+
+ # not testing 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))
+ self.assertEqual(len(pkts), len(rx0) + len(rx1),
+ "Expected all (%s) packets across both ECMP paths. "
+ "rx0: %s rx1: %s." % (len(pkts), len(rx0), 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
+ # us to probe the interim (post-fail, pre-converge) state
#
self.vapi.ppcli("test fib-walk-process disable")
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx0 = self.pg3.get_capture(len(pkts))
+ rx0 = self.pg3.get_capture(NUM_PKTS)
+ self.assertEqual(len(pkts), len(rx0),
+ "Expected all (%s) packets across single path. "
+ "rx0: %s." % (len(pkts), len(rx0)))
#
# 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.pg0.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx0 = self.pg3.get_capture(len(pkts))
+ rx0 = self.pg3.get_capture(NUM_PKTS)
+ self.assertEqual(len(pkts), len(rx0),
+ "Expected all (%s) packets across single path. "
+ "rx0: %s." % (len(pkts), len(rx0)))
#
- # put the connecteds back
+ # put the connected routes back
#
self.pg2.config_ip4()
+ self.pg2.resolve_arp()
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)
+ rx0 = self.pg2._get_capture(NUM_PKTS)
+ rx1 = self.pg3._get_capture(NUM_PKTS)
self.assertNotEqual(0, len(rx0))
self.assertNotEqual(0, len(rx1))
+ self.assertEqual(len(pkts), len(rx0) + len(rx1),
+ "Expected all (%s) packets across both ECMP paths. "
+ "rx0: %s rx1: %s." % (len(pkts), len(rx0), len(rx1)))
def test_mpls_v6_ebgp_pic(self):
- """ MPLSv6 eBGP PIC edge convergence
+ """ MPLSv6 eBGP Prefix-Independent Convergence (PIC) edge convergence
1) setup many eBGP VPNv6 routes via a pair of eBGP peers
2) Check EMCP forwarding to these peers
vpn_routes = []
vpn_bindings = []
pkts = []
- for ii in range(64):
+ for ii in range(NUM_PKTS):
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,
- is_ip6=1),
- VppRoutePath(self.pg3.remote_ip6,
- 0xffffffff,
- nh_table_id=1,
- is_ip6=1,
- is_resolve_attached=1)],
- table_id=1,
- is_ip6=1))
+ vpn_routes.append(VppIpRoute(
+ self, dst, 128,
+ [VppRoutePath(
+ self.pg2.remote_ip6,
+ 0xffffffff,
+ nh_table_id=1,
+ flags=FibPathFlags.FIB_PATH_FLAG_RESOLVE_VIA_ATTACHED),
+ VppRoutePath(
+ self.pg3.remote_ip6,
+ 0xffffffff,
+ nh_table_id=1,
+ flags=FibPathFlags.FIB_PATH_FLAG_RESOLVE_VIA_ATTACHED)],
+ table_id=1))
vpn_routes[ii].add_vpp_config()
vpn_bindings.append(VppMplsIpBind(self, local_label, dst, 128,
- ip_table_id=1,
- is_ip6=1))
+ ip_table_id=1))
vpn_bindings[ii].add_vpp_config()
pkts.append(Ether(dst=self.pg0.local_mac,
MPLS(label=local_label, ttl=64) /
IPv6(src=self.pg0.remote_ip6, dst=dst) /
UDP(sport=1234, dport=1234) /
- Raw('\xa5' * 100))
+ Raw(b'\xa5' * 100))
+ self.logger.info(self.vapi.cli("sh ip6 fib %s" % dst))
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)
+ rx0 = self.pg2._get_capture(NUM_PKTS)
+ rx1 = self.pg3._get_capture(NUM_PKTS)
self.assertNotEqual(0, len(rx0))
self.assertNotEqual(0, len(rx1))
+ self.assertEqual(len(pkts), len(rx0) + len(rx1),
+ "Expected all (%s) packets across both ECMP paths. "
+ "rx0: %s rx1: %s." % (len(pkts), len(rx0), 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
+ # us to probe the interim (post-fail, pre-converge) state
#
self.vapi.ppcli("test fib-walk-process disable")
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx0 = self.pg3.get_capture(len(pkts))
+ rx0 = self.pg3.get_capture(NUM_PKTS)
+ self.assertEqual(len(pkts), len(rx0),
+ "Expected all (%s) packets across single path. "
+ "rx0: %s." % (len(pkts), len(rx0)))
#
# enable the FIB walk process to converge the FIB
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx0 = self.pg3.get_capture(len(pkts))
+ rx0 = self.pg3.get_capture(NUM_PKTS)
+ self.assertEqual(len(pkts), len(rx0),
+ "Expected all (%s) packets across single path. "
+ "rx0: %s." % (len(pkts), len(rx0)))
#
- # put the connecteds back
+ # put the connected routes back
#
+ self.logger.info(self.vapi.cli("sh log"))
self.pg2.admin_up()
self.pg2.config_ip6()
+ self.pg2.resolve_ndp()
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)
+ rx0 = self.pg2._get_capture(NUM_PKTS)
+ rx1 = self.pg3._get_capture(NUM_PKTS)
self.assertNotEqual(0, len(rx0))
self.assertNotEqual(0, len(rx1))
+ self.assertEqual(len(pkts), len(rx0) + len(rx1),
+ "Expected all (%s) packets across both ECMP paths. "
+ "rx0: %s rx1: %s." % (len(pkts), len(rx0), len(rx1)))
+
+
+class TestMPLSL2(VppTestCase):
+ """ MPLS-L2 """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestMPLSL2, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestMPLSL2, cls).tearDownClass()
+
+ 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, don't resolve ARP
+ self.pg0.admin_up()
+ self.pg0.config_ip4()
+ 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(scapy.compat.raw(rx[MPLS].payload))
+
+ self.assertEqual(rx_eth.src, tx_eth.src)
+ self.assertEqual(rx_eth.dst, tx_eth.dst)
+
+ def verify_arp_req(self, rx, smac, sip, dip):
+ ether = rx[Ether]
+ self.assertEqual(ether.dst, "ff:ff:ff:ff:ff:ff")
+ self.assertEqual(ether.src, smac)
+
+ arp = rx[ARP]
+ self.assertEqual(arp.hwtype, 1)
+ self.assertEqual(arp.ptype, 0x800)
+ self.assertEqual(arp.hwlen, 6)
+ self.assertEqual(arp.plen, 4)
+ self.assertEqual(arp.op, ARP.who_has)
+ self.assertEqual(arp.hwsrc, smac)
+ self.assertEqual(arp.hwdst, "00:00:00:00:00:00")
+ self.assertEqual(arp.psrc, sip)
+ self.assertEqual(arp.pdst, dip)
+
+ 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,
+ type=FibPathType.FIB_PATH_TYPE_INTERFACE_RX,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_ETHERNET)],
+ eos_proto=FibPathProto.FIB_PATH_NH_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(b'\xa5' * 100))
+
+ tx0 = pcore * NUM_PKTS
+ 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 customer/L2 side
+ # there's no resolved ARP entry so the first packet we see should be
+ # an ARP request
+ #
+ tx1 = pcore[MPLS].payload
+ rx1 = self.send_and_expect(self.pg1, [tx1], self.pg0)
+
+ self.verify_arp_req(rx1[0],
+ self.pg0.local_mac,
+ self.pg0.local_ip4,
+ self.pg0.remote_ip4)
+
+ #
+ # resolve the ARP entries and send again
+ #
+ self.pg0.resolve_arp()
+ tx1 = pcore[MPLS].payload * NUM_PKTS
+ 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 """
+
+ # we skipped this in the setup
+ self.pg0.resolve_arp()
+
+ #
+ # Create a L2 MPLS tunnels
+ #
+ mpls_tun1 = VppMPLSTunnelInterface(
+ self,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(42)])],
+ is_l2=1)
+ mpls_tun1.add_vpp_config()
+ mpls_tun1.admin_up()
+
+ mpls_tun2 = VppMPLSTunnelInterface(
+ self,
+ [VppRoutePath(self.pg0.remote_ip4,
+ self.pg0.sw_if_index,
+ labels=[VppMplsLabel(43)])],
+ is_l2=1)
+ mpls_tun2.add_vpp_config()
+ mpls_tun2.admin_up()
+
+ #
+ # Create a label entries, 55 and 56, that do L2 input to the tunnel
+ # the latter includes a Psuedo Wire Control Word
+ #
+ route_55_eos = VppMplsRoute(
+ self, 55, 1,
+ [VppRoutePath("0.0.0.0",
+ mpls_tun1.sw_if_index,
+ type=FibPathType.FIB_PATH_TYPE_INTERFACE_RX,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_ETHERNET)],
+ eos_proto=FibPathProto.FIB_PATH_NH_PROTO_ETHERNET)
+
+ route_56_eos = VppMplsRoute(
+ self, 56, 1,
+ [VppRoutePath("0.0.0.0",
+ mpls_tun2.sw_if_index,
+ type=FibPathType.FIB_PATH_TYPE_INTERFACE_RX,
+ flags=FibPathFlags.FIB_PATH_FLAG_POP_PW_CW,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_ETHERNET)],
+ eos_proto=FibPathProto.FIB_PATH_NH_PROTO_ETHERNET)
+
+ # move me
+ route_56_eos.add_vpp_config()
+ route_55_eos.add_vpp_config()
+
+ self.logger.info(self.vapi.cli("sh mpls fib 56"))
+
+ #
+ # add to tunnel to the customers bridge-domain
+ #
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=mpls_tun1.sw_if_index, bd_id=1)
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=mpls_tun2.sw_if_index, bd_id=1)
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=self.pg1.sw_if_index, bd_id=1)
+
+ #
+ # Packet from host on the customer interface to each host
+ # reachable over the core, and vice-versa
+ #
+ p_cust1 = (Ether(dst="00:00:de:ad:ba:b1",
+ src="00:00:de:ad:be:ef") /
+ IP(src="10.10.10.10", dst="11.11.11.11") /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+ p_cust2 = (Ether(dst="00:00:de:ad:ba:b2",
+ src="00:00:de:ad:be:ef") /
+ IP(src="10.10.10.10", dst="11.11.11.12") /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+ p_core1 = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ MPLS(label=55, ttl=64) /
+ Ether(src="00:00:de:ad:ba:b1",
+ dst="00:00:de:ad:be:ef") /
+ IP(dst="10.10.10.10", src="11.11.11.11") /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+ p_core2 = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ MPLS(label=56, ttl=64) /
+ Raw(b'\x01' * 4) / # PW CW
+ Ether(src="00:00:de:ad:ba:b2",
+ dst="00:00:de:ad:be:ef") /
+ IP(dst="10.10.10.10", src="11.11.11.12") /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ #
+ # The BD is learning, so send in one of each packet to learn
+ #
+
+ # 2 packets due to BD flooding
+ rx = self.send_and_expect(self.pg1, p_cust1, self.pg0, n_rx=2)
+ rx = self.send_and_expect(self.pg1, p_cust2, self.pg0, n_rx=2)
+
+ # we've learnt this so expect it be be forwarded not flooded
+ rx = self.send_and_expect(self.pg0, [p_core1], self.pg1)
+ self.assertEqual(rx[0][Ether].dst, p_cust1[Ether].src)
+ self.assertEqual(rx[0][Ether].src, p_cust1[Ether].dst)
+
+ rx = self.send_and_expect(self.pg0, [p_core2], self.pg1)
+ self.assertEqual(rx[0][Ether].dst, p_cust2[Ether].src)
+ self.assertEqual(rx[0][Ether].src, p_cust2[Ether].dst)
+
+ #
+ # now a stream in each direction from each host
+ #
+ rx = self.send_and_expect(self.pg1, p_cust1 * NUM_PKTS, self.pg0)
+ self.verify_capture_tunneled_ethernet(rx, p_cust1 * NUM_PKTS,
+ [VppMplsLabel(42)])
+
+ rx = self.send_and_expect(self.pg1, p_cust2 * NUM_PKTS, self.pg0)
+ self.verify_capture_tunneled_ethernet(rx, p_cust2 * NUM_PKTS,
+ [VppMplsLabel(43)])
+
+ rx = self.send_and_expect(self.pg0, p_core1 * NUM_PKTS, self.pg1)
+ rx = self.send_and_expect(self.pg0, p_core2 * NUM_PKTS, self.pg1)
+
+ #
+ # remove interfaces from customers bridge-domain
+ #
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=mpls_tun1.sw_if_index, bd_id=1, enable=0)
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=mpls_tun2.sw_if_index, bd_id=1, enable=0)
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=self.pg1.sw_if_index, bd_id=1, enable=0)
if __name__ == '__main__':
Code Review / vpp.git / blobdiff