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Tests for recursive load-balancing with no choices.

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Change-Id: I90bb3369576741d03628a818ffa63cc99d6e4c98
Signed-off-by: Neale Ranns <nranns@cisco.com>
This commit is contained in:
Neale Ranns
2017-07-31 02:56:03 -07:00
parent 15ac81c16f
commit 42e6b097e0
2 changed files with 68 additions and 5 deletions
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40
test/test_ip4.py
View File

@ -796,6 +796,12 @@ class TestIPLoadBalance(VppTestCase):
rx = oo._get_capture(1)
self.assertNotEqual(0, len(rx))
def send_and_expect_one_itf(self, input, pkts, itf):
input.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = itf.get_capture(len(pkts))
def test_ip_load_balance(self):
""" IP Load-Balancing """
@ -874,11 +880,7 @@ class TestIPLoadBalance(VppTestCase):
self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
[self.pg1, self.pg2])
self.pg0.add_stream(port_ip_pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg2.get_capture(len(port_ip_pkts))
self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
#
# change the flow hash config back to defaults
@ -928,6 +930,34 @@ class TestIPLoadBalance(VppTestCase):
[self.pg1, self.pg2,
self.pg3, self.pg4])
#
# Recursive prefixes
# - testing that 2 stages of load-balancing, no choices
#
port_pkts = []
for ii in range(257):
port_pkts.append((Ether(src=self.pg0.remote_mac,
dst=self.pg0.local_mac) /
IP(dst="1.1.1.2", src="20.0.0.2") /
UDP(sport=1234, dport=1234 + ii) /
Raw('\xa5' * 100)))
route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
[VppRoutePath(self.pg3.remote_ip4,
self.pg3.sw_if_index)])
route_10_0_0_3.add_vpp_config()
route_1_1_1_2 = VppIpRoute(self, "1.1.1.2", 32,
[VppRoutePath("10.0.0.3", 0xffffffff)])
route_1_1_1_2.add_vpp_config()
#
# inject the packet on pg0 - expect load-balancing across all 4 paths
#
self.vapi.cli("clear trace")
self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
class TestIPVlan0(VppTestCase):
""" IPv4 VLAN-0 """

33
test/test_ip6.py
View File

@ -1469,6 +1469,39 @@ class TestIP6LoadBalance(VppTestCase):
[self.pg1, self.pg2,
self.pg3, self.pg4])
#
# Recursive prefixes
# - testing that 2 stages of load-balancing no choices
#
port_pkts = []
for ii in range(257):
port_pkts.append((Ether(src=self.pg0.remote_mac,
dst=self.pg0.local_mac) /
IPv6(dst="6000::1", src="6000:1::1") /
UDP(sport=1234, dport=1234 + ii) /
Raw('\xa5' * 100)))
route_5000_2 = VppIpRoute(self, "5000::2", 128,
[VppRoutePath(self.pg3.remote_ip6,
self.pg3.sw_if_index,
is_ip6=1)],
is_ip6=1)
route_5000_2.add_vpp_config()
route_6000_1 = VppIpRoute(self, "6000::1", 128,
[VppRoutePath("5000::2",
0xffffffff,
is_ip6=1)],
is_ip6=1)
route_6000_1.add_vpp_config()
#
# inject the packet on pg0 - expect load-balancing across all 4 paths
#
self.vapi.cli("clear trace")
self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)