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-rw-r--r--test/test_ip4.py83
1 files changed, 82 insertions, 1 deletions
diff --git a/test/test_ip4.py b/test/test_ip4.py
index 6f764373075..c8c0a71d171 100644
--- a/test/test_ip4.py
+++ b/test/test_ip4.py
@@ -899,9 +899,13 @@ class TestIPLoadBalance(VppTestCase):
input.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
+ rxs = []
for oo in outputs:
rx = oo._get_capture(1)
self.assertNotEqual(0, len(rx))
+ for r in rx:
+ rxs.append(r)
+ return rxs
def send_and_expect_one_itf(self, input, pkts, itf):
input.add_stream(pkts)
@@ -1038,6 +1042,53 @@ class TestIPLoadBalance(VppTestCase):
self.pg3, self.pg4])
#
+ # bring down pg1 expect LB to adjust to use only those that are pu
+ #
+ self.pg1.link_down()
+
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg2, self.pg3,
+ self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
+ #
+ # bring down pg2 expect LB to adjust to use only those that are pu
+ #
+ self.pg2.link_down()
+
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
+ #
+ # bring the links back up - expect LB over all again
+ #
+ self.pg1.link_up()
+ self.pg2.link_up()
+
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg1, self.pg2,
+ self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
+ #
+ # The same link-up/down but this time admin state
+ #
+ self.pg1.admin_down()
+ self.pg2.admin_down()
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+ self.pg1.admin_up()
+ self.pg2.admin_up()
+ self.pg1.resolve_arp()
+ self.pg2.resolve_arp()
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg1, self.pg2,
+ self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
+ #
# Recursive prefixes
# - testing that 2 stages of load-balancing, no choices
#
@@ -1060,11 +1111,41 @@ class TestIPLoadBalance(VppTestCase):
route_1_1_1_2.add_vpp_config()
#
- # inject the packet on pg0 - expect load-balancing across all 4 paths
+ # inject the packet on pg0 - rx only on via routes output interface
#
self.vapi.cli("clear trace")
self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
+ #
+ # Add a LB route in the presence of a down link - expect no
+ # packets over the down link
+ #
+ self.pg3.link_down()
+
+ route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
+ [VppRoutePath(self.pg3.remote_ip4,
+ self.pg3.sw_if_index),
+ VppRoutePath(self.pg4.remote_ip4,
+ self.pg4.sw_if_index)])
+ route_10_0_0_3.add_vpp_config()
+
+ port_pkts = []
+ for ii in range(257):
+ port_pkts.append(Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(dst="10.0.0.3", src="20.0.0.2") /
+ UDP(sport=1234, dport=1234 + ii) /
+ Raw('\xa5' * 100))
+
+ self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg4)
+
+ # bring the link back up
+ self.pg3.link_up()
+
+ rx = self.send_and_expect_load_balancing(self.pg0, port_pkts,
+ [self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
class TestIPVlan0(VppTestCase):
""" IPv4 VLAN-0 """