def test_bind(self):
""" MPLS Local Label Binding test """
#
# Add a non-recursive route with a single out label
#
route_10_0_0_1 = IpRoute(self, "10.0.0.1", 32, [
RoutePath(self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[45])
])
route_10_0_0_1.add_vpp_config()
# bind a local label to the route
binding = MplsIpBind(self, 44, "10.0.0.1", 32)
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])
# 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])
# 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])
#
# cleanup
#
binding.remove_vpp_config()
route_10_0_0_1.remove_vpp_config()
def test_imposition(self):
""" MPLS label imposition test """
#
# Add a non-recursive route with a single out label
#
route_10_0_0_1 = IpRoute(self, "10.0.0.1", 32, [
RoutePath(self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[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])
#
# Add a non-recursive route with a 3 out labels
#
route_10_0_0_2 = IpRoute(self, "10.0.0.2", 32, [
RoutePath(
self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[32, 33, 34])
])
route_10_0_0_2.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, "10.0.0.2")
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])
#
# add a recursive path, with output label, via the 1 label route
#
route_11_0_0_1 = IpRoute(
self, "11.0.0.1", 32,
[RoutePath("10.0.0.1", 0xffffffff, labels=[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.pg0.get_capture()
self.verify_capture_labelled_ip4(self.pg0, rx, tx, [32, 44])
#
# add a recursive path, with 2 labels, via the 3 label route
#
route_11_0_0_2 = IpRoute(
self, "11.0.0.2", 32,
[RoutePath("10.0.0.2", 0xffffffff, labels=[44, 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])
#
# cleanup
#
route_11_0_0_2.remove_vpp_config()
route_11_0_0_1.remove_vpp_config()
route_10_0_0_2.remove_vpp_config()
route_10_0_0_1.remove_vpp_config()
def test_swap(self):
""" MPLS label swap tests """
#
# A simple MPLS xconnect - eos label in label out
#
route_32_eos = MplsRoute(self, 32, 1, [
RoutePath(self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[33])
])
route_32_eos.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])
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])
#
# A simple MPLS xconnect - non-eos label in label out
#
route_32_neos = MplsRoute(self, 32, 0, [
RoutePath(self.pg0.remote_ip4, self.pg0.sw_if_index, labels=[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()
rx = self.pg0.get_capture()
self.verify_capture_labelled(self.pg0, rx, tx, [33, 99])
#
# An MPLS xconnect - EOS label in IP out
#
route_33_eos = MplsRoute(
self, 33, 1,
[RoutePath(self.pg0.remote_ip4, self.pg0.sw_if_index, 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)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
self.verify_capture_ip4(self.pg0, rx, tx)
#
# An MPLS xconnect - non-EOS label in IP out - an invalid configuration
# so this traffic should be dropped.
#
route_33_neos = MplsRoute(
self, 33, 0,
[RoutePath(self.pg0.remote_ip4, self.pg0.sw_if_index, 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")
#
# A recursive EOS x-connect, which resolves through another x-connect
#
route_34_eos = MplsRoute(self, 34, 1, [
RoutePath("0.0.0.0", 0xffffffff, nh_via_label=32, labels=[44, 45])
])
route_34_eos.add_vpp_config()
self.vapi.cli("clear trace")
tx = self.create_stream_labelled_ip4(self.pg0, [34])
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, 45])
#
# A recursive non-EOS x-connect, which resolves through another
# x-connect
#
route_34_neos = MplsRoute(self, 34, 0, [
RoutePath("0.0.0.0", 0xffffffff, nh_via_label=32, labels=[44, 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()
# 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)
#
# an recursive IP route that resolves through the recursive non-eos
# x-connect
#
ip_10_0_0_1 = IpRoute(
self, "10.0.0.1", 32,
[RoutePath("0.0.0.0", 0xffffffff, nh_via_label=34, labels=[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])
ip_10_0_0_1.remove_vpp_config()
route_34_neos.remove_vpp_config()
route_34_eos.remove_vpp_config()
route_33_neos.remove_vpp_config()
route_33_eos.remove_vpp_config()
route_32_neos.remove_vpp_config()
route_32_eos.remove_vpp_config()
def test_gre_l2(self):
""" GRE tunnel L2 Tests """
#
# Add routes to resolve the tunnel destinations
#
route_tun1_dst = IpRoute(
self, "2.2.2.2", 32,
[IpPath(self.pg0.remote_ip4, self.pg0.sw_if_index)])
route_tun2_dst = IpRoute(
self, "2.2.2.3", 32,
[IpPath(self.pg0.remote_ip4, self.pg0.sw_if_index)])
route_tun1_dst.add_vpp_config()
route_tun2_dst.add_vpp_config()
#
# Create 2 L2 GRE tunnels and x-connect them
#
gre_if1 = VppGreInterface(self,
self.pg0.local_ip4,
"2.2.2.2",
is_teb=1)
gre_if2 = VppGreInterface(self,
self.pg0.local_ip4,
"2.2.2.3",
is_teb=1)
gre_if1.add_vpp_config()
gre_if2.add_vpp_config()
gre_if1.admin_up()
gre_if2.admin_up()
self.vapi.sw_interface_set_l2_xconnect(gre_if1.sw_if_index,
gre_if2.sw_if_index,
enable=1)
self.vapi.sw_interface_set_l2_xconnect(gre_if2.sw_if_index,
gre_if1.sw_if_index,
enable=1)
#
# Send in tunnel encapped L2. expect out tunnel encapped L2
# in both directions
#
self.vapi.cli("clear trace")
tx = self.create_tunnel_stream_l2o4(self.pg0, "2.2.2.2",
self.pg0.local_ip4)
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
self.verify_tunneled_l2o4(self.pg0, rx, tx, self.pg0.local_ip4,
"2.2.2.3")
self.vapi.cli("clear trace")
tx = self.create_tunnel_stream_l2o4(self.pg0, "2.2.2.3",
self.pg0.local_ip4)
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
self.verify_tunneled_l2o4(self.pg0, rx, tx, self.pg0.local_ip4,
"2.2.2.2")
self.vapi.sw_interface_set_l2_xconnect(gre_if1.sw_if_index,
gre_if2.sw_if_index,
enable=0)
self.vapi.sw_interface_set_l2_xconnect(gre_if2.sw_if_index,
gre_if1.sw_if_index,
enable=0)
#
# Create a VLAN sub-interfaces on the GRE TEB interfaces
# then x-connect them
#
gre_if_11 = VppDot1QSubint(self, gre_if1, 11)
gre_if_12 = VppDot1QSubint(self, gre_if2, 12)
# gre_if_11.add_vpp_config()
# gre_if_12.add_vpp_config()
gre_if_11.admin_up()
gre_if_12.admin_up()
self.vapi.sw_interface_set_l2_xconnect(gre_if_11.sw_if_index,
gre_if_12.sw_if_index,
enable=1)
self.vapi.sw_interface_set_l2_xconnect(gre_if_12.sw_if_index,
gre_if_11.sw_if_index,
enable=1)
#
# Configure both to pop thier respective VLAN tags,
# so that during the x-coonect they will subsequently push
#
self.vapi.sw_interface_set_l2_tag_rewrite(gre_if_12.sw_if_index,
L2_VTR_OP.L2_POP_1, 12)
self.vapi.sw_interface_set_l2_tag_rewrite(gre_if_11.sw_if_index,
L2_VTR_OP.L2_POP_1, 11)
#
# Send traffic in both directiond - expect the VLAN tags to
# be swapped.
#
self.vapi.cli("clear trace")
tx = self.create_tunnel_stream_vlano4(self.pg0, "2.2.2.2",
self.pg0.local_ip4, 11)
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
self.verify_tunneled_vlano4(self.pg0, rx, tx, self.pg0.local_ip4,
"2.2.2.3", 12)
self.vapi.cli("clear trace")
tx = self.create_tunnel_stream_vlano4(self.pg0, "2.2.2.3",
self.pg0.local_ip4, 12)
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
self.verify_tunneled_vlano4(self.pg0, rx, tx, self.pg0.local_ip4,
"2.2.2.2", 11)
#
# Cleanup Test resources
#
gre_if_11.remove_vpp_config()
gre_if_12.remove_vpp_config()
gre_if1.remove_vpp_config()
gre_if2.remove_vpp_config()
route_tun1_dst.add_vpp_config()
route_tun2_dst.add_vpp_config()
def test_gre_vrf(self):
""" GRE tunnel VRF Tests """
#
# Create an L3 GRE tunnel whose destination is in the non-default
# table. The underlay is thus non-default - the overlay is still
# the default.
# - set it admin up
# - assign an IP Addres
#
gre_if = VppGreInterface(self,
self.pg1.local_ip4,
"2.2.2.2",
outer_fib_id=1)
gre_if.add_vpp_config()
gre_if.admin_up()
gre_if.config_ip4()
#
# Add a route via the tunnel - in the overlay
#
route_via_tun = IpRoute(self, "9.9.9.9", 32,
[IpPath("0.0.0.0", gre_if.sw_if_index)])
route_via_tun.add_vpp_config()
#
# Add a route that resolves the tunnel's destination - in the
# underlay table
#
route_tun_dst = IpRoute(
self,
"2.2.2.2",
32,
table_id=1,
paths=[IpPath(self.pg1.remote_ip4, self.pg1.sw_if_index)])
route_tun_dst.add_vpp_config()
#
# Send a packet stream that is routed into the tunnel
# packets are sent in on pg0 which is in the default table
# - packets are GRE encapped
#
self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "9.9.9.9")
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture()
self.verify_tunneled_4o4(self.pg1, rx, tx, self.pg1.local_ip4,
"2.2.2.2")
#
# Send tunneled packets that match the created tunnel and
# are decapped and forwarded. This tests the decap lookup
# does not happen in the encap table
#
self.vapi.cli("clear trace")
tx = self.create_tunnel_stream_4o4(self.pg1, "2.2.2.2",
self.pg1.local_ip4,
self.pg0.local_ip4,
self.pg0.remote_ip4)
self.pg1.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
self.verify_decapped_4o4(self.pg0, rx, tx)
#
# test case cleanup
#
route_tun_dst.remove_vpp_config()
route_via_tun.remove_vpp_config()
gre_if.remove_vpp_config()
def test_gre(self):
""" GRE tunnel Tests """
#
# Create an L3 GRE tunnel.
# - set it admin up
# - assign an IP Addres
# - Add a route via the tunnel
#
gre_if = VppGreInterface(self, self.pg0.local_ip4, "1.1.1.2")
gre_if.add_vpp_config()
#
# The double create (create the same tunnel twice) should fail,
# and we should still be able to use the original
#
try:
gre_if.add_vpp_config()
except Exception:
pass
else:
self.fail("Double GRE tunnel add does not fail")
gre_if.admin_up()
gre_if.config_ip4()
route_via_tun = IpRoute(self, "4.4.4.4", 32,
[IpPath("0.0.0.0", gre_if.sw_if_index)])
route_via_tun.add_vpp_config()
#
# Send a packet stream that is routed into the tunnel
# - they are all dropped since the tunnel's desintation IP
# is unresolved - or resolves via the default route - which
# which is a drop.
#
tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "4.4.4.4")
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
try:
self.assertEqual(0, len(rx))
except:
error("GRE packets forwarded without DIP resolved")
error(rx.show())
raise
#
# Add a route that resolves the tunnel's destination
#
route_tun_dst = IpRoute(
self, "1.1.1.2", 32,
[IpPath(self.pg0.remote_ip4, self.pg0.sw_if_index)])
route_tun_dst.add_vpp_config()
#
# Send a packet stream that is routed into the tunnel
# - packets are GRE encapped
#
self.vapi.cli("clear trace")
tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "4.4.4.4")
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
self.verify_tunneled_4o4(self.pg0, rx, tx, self.pg0.local_ip4,
"1.1.1.2")
#
# Send tunneled packets that match the created tunnel and
# are decapped and forwarded
#
self.vapi.cli("clear trace")
tx = self.create_tunnel_stream_4o4(self.pg0, "1.1.1.2",
self.pg0.local_ip4,
self.pg0.local_ip4,
self.pg0.remote_ip4)
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
self.verify_decapped_4o4(self.pg0, rx, tx)
#
# Send tunneled packets that do not match the tunnel's src
#
self.vapi.cli("clear trace")
tx = self.create_tunnel_stream_4o4(self.pg0, "1.1.1.3",
self.pg0.local_ip4,
self.pg0.local_ip4,
self.pg0.remote_ip4)
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
try:
self.assertEqual(0, len(rx))
except:
error("GRE packets forwarded despite no SRC address match")
error(rx.show())
raise
#
# Configure IPv6 on the PG interface so we can route IPv6
# packets
#
self.pg0.config_ip6()
self.pg0.resolve_ndp()
#
# Send IPv6 tunnel encapslated packets
# - dropped since IPv6 is not enabled on the tunnel
#
self.vapi.cli("clear trace")
tx = self.create_tunnel_stream_6o4(self.pg0, "1.1.1.2",
self.pg0.local_ip4,
self.pg0.local_ip6,
self.pg0.remote_ip6)
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
try:
self.assertEqual(0, len(rx))
except:
error(
"IPv6 GRE packets forwarded despite IPv6 not enabled on tunnel"
)
error(rx.show())
raise
#
# Enable IPv6 on the tunnel
#
gre_if.config_ip6()
#
# Send IPv6 tunnel encapslated packets
# - forwarded since IPv6 is enabled on the tunnel
#
self.vapi.cli("clear trace")
tx = self.create_tunnel_stream_6o4(self.pg0, "1.1.1.2",
self.pg0.local_ip4,
self.pg0.local_ip6,
self.pg0.remote_ip6)
self.pg0.add_stream(tx)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg0.get_capture()
self.verify_decapped_6o4(self.pg0, rx, tx)
#
# test case cleanup
#
route_tun_dst.remove_vpp_config()
route_via_tun.remove_vpp_config()
gre_if.remove_vpp_config()
self.pg0.unconfig_ip6()