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6e8b811ee409bff97996cd60d2ae04e884fd66d3
vpp/test/test_qos.py
Neale Ranns 097fa66b98 fib: fib api updates 
Enhance the route add/del APIs to take a set of paths rather than just one.
Most unicast routing protocols calcualte all the available paths in one
run of the algorithm so updating all the paths at once is beneficial for the client.
two knobs control the behaviour:
  is_multipath - if set the the set of paths passed will be added to those
                 that already exist, otherwise the set will replace them.
  is_add - add or remove the set

is_add=0, is_multipath=1 and an empty set, results in deleting the route.

It is also considerably faster to add multiple paths at once, than one at a time:

vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.11
100000 routes in .572240 secs, 174751.80 routes/sec
vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.12
100000 routes in .528383 secs, 189256.54 routes/sec
vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.13
100000 routes in .757131 secs, 132077.52 routes/sec
vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.14
100000 routes in .878317 secs, 113854.12 routes/sec

vat# ip_route_add_del 1.1.1.1/32 count 100000 multipath via 10.10.10.11 via 10.10.10.12 via 10.10.10.13 via 10.10.10.14
100000 routes in .900212 secs, 111084.93 routes/sec

Change-Id: I416b93f7684745099c1adb0b33edac58c9339c1a
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-06-18 13:31:39 +00:00

598 lines
22 KiB
Python
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#!/usr/bin/env python
import unittest
from framework import VppTestCase, VppTestRunner
from vpp_sub_interface import VppDot1QSubint
from vpp_ip import DpoProto
from vpp_ip_route import VppIpRoute, VppRoutePath, VppMplsRoute, \
VppMplsLabel, VppMplsTable, FibPathProto
import scapy.compat
from scapy.packet import Raw
from scapy.layers.l2 import Ether, Dot1Q
from scapy.layers.inet import IP, UDP
from scapy.layers.inet6 import IPv6
from scapy.contrib.mpls import MPLS
from vpp_papi import VppEnum
NUM_PKTS = 67
class TestQOS(VppTestCase):
""" QOS Test Case """
# Note: Since the enums aren't created dynamically until after
# the papi client attaches to VPP, we put it in a property to
# ensure it is the value at runtime, not at module load time.
@property
def QOS_SOURCE(self):
return VppEnum.vl_api_qos_source_t
@classmethod
def setUpClass(cls):
super(TestQOS, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TestQOS, cls).tearDownClass()
def setUp(self):
super(TestQOS, self).setUp()
self.create_pg_interfaces(range(5))
tbl = VppMplsTable(self, 0)
tbl.add_vpp_config()
for i in self.pg_interfaces:
i.admin_up()
i.config_ip4()
i.resolve_arp()
i.config_ip6()
i.resolve_ndp()
i.enable_mpls()
def tearDown(self):
for i in self.pg_interfaces:
i.unconfig_ip4()
i.unconfig_ip6()
i.disable_mpls()
super(TestQOS, self).tearDown()
def test_qos_ip(self):
""" QoS Mark/Record IP """
#
# for table 1 map the n=0xff possible values of input QoS mark,
# n to 1-n
#
output = [scapy.compat.chb(0)] * 256
for i in range(0, 255):
output[i] = scapy.compat.chb(255 - i)
os = b''.join(output)
rows = [{'outputs': os},
{'outputs': os},
{'outputs': os},
{'outputs': os}]
self.vapi.qos_egress_map_update(1, rows)
#
# For table 2 (and up) use the value n for everything
#
output = [scapy.compat.chb(2)] * 256
os = b''.join(output)
rows = [{'outputs': os},
{'outputs': os},
{'outputs': os},
{'outputs': os}]
self.vapi.qos_egress_map_update(2, rows)
output = [scapy.compat.chb(3)] * 256
os = b''.join(output)
rows = [{'outputs': os},
{'outputs': os},
{'outputs': os},
{'outputs': os}]
self.vapi.qos_egress_map_update(3, rows)
output = [scapy.compat.chb(4)] * 256
os = b''.join(output)
rows = [{'outputs': os},
{'outputs': os},
{'outputs': os},
{'outputs': os}]
self.vapi.qos_egress_map_update(4, rows)
self.vapi.qos_egress_map_update(5, rows)
self.vapi.qos_egress_map_update(6, rows)
self.vapi.qos_egress_map_update(7, rows)
self.logger.info(self.vapi.cli("sh qos eg map"))
#
# Bind interface pgN to table n
#
self.vapi.qos_mark_enable_disable(self.pg1.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
1,
1)
self.vapi.qos_mark_enable_disable(self.pg2.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
2,
1)
self.vapi.qos_mark_enable_disable(self.pg3.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
3,
1)
self.vapi.qos_mark_enable_disable(self.pg4.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
4,
1)
#
# packets ingress on Pg0
#
p_v4 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4, tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
p_v6 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IPv6(src=self.pg0.remote_ip6, dst=self.pg1.remote_ip6,
tc=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
#
# Since we have not yet enabled the recording of the input QoS
# from the input iP header, the egress packet's ToS will be unchanged
#
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 1)
rx = self.send_and_expect(self.pg0, p_v6 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IPv6].tc, 1)
#
# Enable QoS recording on IP input for pg0
#
self.vapi.qos_record_enable_disable(self.pg0.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
1)
#
# send the same packets, this time expect the input TOS of 1
# to be mapped to pg1's egress value of 254
#
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 254)
rx = self.send_and_expect(self.pg0, p_v6 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IPv6].tc, 254)
#
# different input ToS to test the mapping
#
p_v4[IP].tos = 127
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 128)
p_v6[IPv6].tc = 127
rx = self.send_and_expect(self.pg0, p_v6 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IPv6].tc, 128)
p_v4[IP].tos = 254
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 1)
p_v6[IPv6].tc = 254
rx = self.send_and_expect(self.pg0, p_v6 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IPv6].tc, 1)
#
# send packets out the other interfaces to test the maps are
# correctly applied
#
p_v4[IP].dst = self.pg2.remote_ip4
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg2)
for p in rx:
self.assertEqual(p[IP].tos, 2)
p_v4[IP].dst = self.pg3.remote_ip4
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg3)
for p in rx:
self.assertEqual(p[IP].tos, 3)
p_v6[IPv6].dst = self.pg3.remote_ip6
rx = self.send_and_expect(self.pg0, p_v6 * NUM_PKTS, self.pg3)
for p in rx:
self.assertEqual(p[IPv6].tc, 3)
#
# remove the map on pg2 and pg3, now expect an unchanged IP tos
#
self.vapi.qos_mark_enable_disable(self.pg2.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
2,
0)
self.vapi.qos_mark_enable_disable(self.pg3.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
3,
0)
self.logger.info(self.vapi.cli("sh int feat pg2"))
p_v4[IP].dst = self.pg2.remote_ip4
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg2)
for p in rx:
self.assertEqual(p[IP].tos, 254)
p_v4[IP].dst = self.pg3.remote_ip4
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg3)
for p in rx:
self.assertEqual(p[IP].tos, 254)
#
# still mapping out of pg1
#
p_v4[IP].dst = self.pg1.remote_ip4
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 1)
#
# disable the input recording on pg0
#
self.vapi.qos_record_enable_disable(self.pg0.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
0)
#
# back to an unchanged TOS value
#
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 254)
#
# disable the egress map on pg1 and pg4
#
self.vapi.qos_mark_enable_disable(self.pg1.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
1,
0)
self.vapi.qos_mark_enable_disable(self.pg4.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
4,
0)
#
# unchanged Tos on pg1
#
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 254)
#
# clean-up the map
#
self.vapi.qos_egress_map_delete(1)
self.vapi.qos_egress_map_delete(4)
self.vapi.qos_egress_map_delete(2)
self.vapi.qos_egress_map_delete(3)
self.vapi.qos_egress_map_delete(5)
self.vapi.qos_egress_map_delete(6)
self.vapi.qos_egress_map_delete(7)
def test_qos_mpls(self):
""" QoS Mark/Record MPLS """
#
# 255 QoS for all input values
#
from_ext = 7
from_ip = 6
from_mpls = 5
from_vlan = 4
output = [scapy.compat.chb(from_ext)] * 256
os1 = b''.join(output)
output = [scapy.compat.chb(from_vlan)] * 256
os2 = b''.join(output)
output = [scapy.compat.chb(from_mpls)] * 256
os3 = b''.join(output)
output = [scapy.compat.chb(from_ip)] * 256
os4 = b''.join(output)
rows = [{'outputs': os1},
{'outputs': os2},
{'outputs': os3},
{'outputs': os4}]
self.vapi.qos_egress_map_update(1, rows)
#
# a route with 1 MPLS label
#
route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
[VppRoutePath(self.pg1.remote_ip4,
self.pg1.sw_if_index,
labels=[32])])
route_10_0_0_1.add_vpp_config()
#
# a route with 3 MPLS labels
#
route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
[VppRoutePath(self.pg1.remote_ip4,
self.pg1.sw_if_index,
labels=[63, 33, 34])])
route_10_0_0_3.add_vpp_config()
#
# enable IP QoS recording on the input Pg0 and MPLS egress marking
# on Pg1
#
self.vapi.qos_record_enable_disable(self.pg0.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
1)
self.vapi.qos_mark_enable_disable(self.pg1.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_MPLS,
1,
1)
#
# packet that will get one label added and 3 labels added resp.
#
p_1 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IP(src=self.pg0.remote_ip4, dst="10.0.0.1", tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
p_3 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IP(src=self.pg0.remote_ip4, dst="10.0.0.3", tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
rx = self.send_and_expect(self.pg0, p_1 * NUM_PKTS, self.pg1)
#
# only 3 bits of ToS value in MPLS make sure tos is correct
# and the label and EOS bit have not been corrupted
#
for p in rx:
self.assertEqual(p[MPLS].cos, from_ip)
self.assertEqual(p[MPLS].label, 32)
self.assertEqual(p[MPLS].s, 1)
rx = self.send_and_expect(self.pg0, p_3 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[MPLS].cos, from_ip)
self.assertEqual(p[MPLS].label, 63)
self.assertEqual(p[MPLS].s, 0)
h = p[MPLS].payload
self.assertEqual(h[MPLS].cos, from_ip)
self.assertEqual(h[MPLS].label, 33)
self.assertEqual(h[MPLS].s, 0)
h = h[MPLS].payload
self.assertEqual(h[MPLS].cos, from_ip)
self.assertEqual(h[MPLS].label, 34)
self.assertEqual(h[MPLS].s, 1)
#
# enable MPLS QoS recording on the input Pg0 and IP egress marking
# on Pg1
#
self.vapi.qos_record_enable_disable(
self.pg0.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_MPLS,
1)
self.vapi.qos_mark_enable_disable(self.pg1.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
1,
1)
#
# MPLS x-connect - COS according to pg1 map
#
route_32_eos = VppMplsRoute(self, 32, 1,
[VppRoutePath(self.pg1.remote_ip4,
self.pg1.sw_if_index,
labels=[VppMplsLabel(33)])])
route_32_eos.add_vpp_config()
p_m1 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
MPLS(label=32, cos=3, ttl=2) /
IP(src=self.pg0.remote_ip4, dst="10.0.0.1", tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
rx = self.send_and_expect(self.pg0, p_m1 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[MPLS].cos, from_mpls)
self.assertEqual(p[MPLS].label, 33)
self.assertEqual(p[MPLS].s, 1)
#
# MPLS deag - COS is copied from MPLS to IP
#
route_33_eos = VppMplsRoute(self, 33, 1,
[VppRoutePath("0.0.0.0",
0xffffffff,
nh_table_id=0)])
route_33_eos.add_vpp_config()
route_10_0_0_4 = VppIpRoute(self, "10.0.0.4", 32,
[VppRoutePath(self.pg1.remote_ip4,
self.pg1.sw_if_index)])
route_10_0_0_4.add_vpp_config()
p_m2 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
MPLS(label=33, ttl=2, cos=3) /
IP(src=self.pg0.remote_ip4, dst="10.0.0.4", tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
rx = self.send_and_expect(self.pg0, p_m2 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, from_mpls)
#
# cleanup
#
self.vapi.qos_record_enable_disable(self.pg0.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
0)
self.vapi.qos_mark_enable_disable(self.pg1.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_MPLS,
1,
0)
self.vapi.qos_record_enable_disable(
self.pg0.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_MPLS,
0)
self.vapi.qos_mark_enable_disable(self.pg1.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
1,
0)
self.vapi.qos_egress_map_delete(1)
def test_qos_vlan(self):
"""QoS mark/record VLAN """
#
# QoS for all input values
#
output = [scapy.compat.chb(0)] * 256
for i in range(0, 255):
output[i] = scapy.compat.chb(255 - i)
os = b''.join(output)
rows = [{'outputs': os},
{'outputs': os},
{'outputs': os},
{'outputs': os}]
self.vapi.qos_egress_map_update(1, rows)
sub_if = VppDot1QSubint(self, self.pg0, 11)
sub_if.admin_up()
sub_if.config_ip4()
sub_if.resolve_arp()
sub_if.config_ip6()
sub_if.resolve_ndp()
#
# enable VLAN QoS recording/marking on the input Pg0 subinterface and
#
self.vapi.qos_record_enable_disable(
sub_if.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_VLAN,
1)
self.vapi.qos_mark_enable_disable(sub_if.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_VLAN,
1,
1)
#
# IP marking/recording on pg1
#
self.vapi.qos_record_enable_disable(self.pg1.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
1)
self.vapi.qos_mark_enable_disable(self.pg1.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
1,
1)
#
# a routes to/from sub-interface
#
route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
[VppRoutePath(sub_if.remote_ip4,
sub_if.sw_if_index)])
route_10_0_0_1.add_vpp_config()
route_10_0_0_2 = VppIpRoute(self, "10.0.0.2", 32,
[VppRoutePath(self.pg1.remote_ip4,
self.pg1.sw_if_index)])
route_10_0_0_2.add_vpp_config()
route_2001_1 = VppIpRoute(self, "2001::1", 128,
[VppRoutePath(sub_if.remote_ip6,
sub_if.sw_if_index)])
route_2001_1.add_vpp_config()
route_2001_2 = VppIpRoute(self, "2001::2", 128,
[VppRoutePath(self.pg1.remote_ip6,
self.pg1.sw_if_index)])
route_2001_2.add_vpp_config()
p_v1 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
Dot1Q(vlan=11, prio=1) /
IP(src="1.1.1.1", dst="10.0.0.2", tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
p_v2 = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) /
IP(src="1.1.1.1", dst="10.0.0.1", tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
rx = self.send_and_expect(self.pg1, p_v2 * NUM_PKTS, self.pg0)
for p in rx:
self.assertEqual(p[Dot1Q].prio, 6)
rx = self.send_and_expect(self.pg0, p_v1 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 254)
p_v1 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
Dot1Q(vlan=11, prio=2) /
IPv6(src="2001::1", dst="2001::2", tc=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
p_v2 = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) /
IPv6(src="3001::1", dst="2001::1", tc=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
rx = self.send_and_expect(self.pg1, p_v2 * NUM_PKTS, self.pg0)
for p in rx:
self.assertEqual(p[Dot1Q].prio, 6)
rx = self.send_and_expect(self.pg0, p_v1 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IPv6].tc, 253)
#
# cleanup
#
sub_if.unconfig_ip4()
sub_if.unconfig_ip6()
self.vapi.qos_record_enable_disable(
sub_if.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_VLAN,
0)
self.vapi.qos_mark_enable_disable(sub_if.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_VLAN,
1,
0)
self.vapi.qos_record_enable_disable(self.pg1.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
0)
self.vapi.qos_mark_enable_disable(self.pg1.sw_if_index,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
1,
0)
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
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