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authorNeale Ranns <nranns@cisco.com>2018-09-05 09:13:57 -0700
committerJohn Lo <loj@cisco.com>2018-09-25 16:29:19 +0000
commitb474380f82b75d9640f9bf6ee78c891a6794dbfb (patch)
tree1deee7eda6675a9886ddebb4a38249110f67170d /test/test_l2_flood.py
parent6a30b5f9182a44989e97bbc044f29adccdef09b2 (diff)
L2 BD: introduce a BD interface on which to send UU packets
Change-Id: I21ad6b04c19c8735d057174b1f260a59f2812241 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'test/test_l2_flood.py')
-rw-r--r--test/test_l2_flood.py111
1 files changed, 109 insertions, 2 deletions
diff --git a/test/test_l2_flood.py b/test/test_l2_flood.py
index a8b6b10f11a..50a692e57e8 100644
--- a/test/test_l2_flood.py
+++ b/test/test_l2_flood.py
@@ -5,6 +5,7 @@ import socket
from framework import VppTestCase, VppTestRunner
from vpp_ip_route import VppIpRoute, VppRoutePath
+from vpp_papi_provider import L2_PORT_TYPE, BRIDGE_FLAGS
from scapy.packet import Raw
from scapy.layers.l2 import Ether
@@ -58,7 +59,8 @@ class TestL2Flood(VppTestCase):
for i in self.pg_interfaces[8:12]:
self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 2)
for i in self.lo_interfaces:
- self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 2, bvi=1)
+ self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 2,
+ port_type=L2_PORT_TYPE.BVI)
p = (Ether(dst="ff:ff:ff:ff:ff:ff",
src="00:00:de:ad:be:ef") /
@@ -137,7 +139,112 @@ class TestL2Flood(VppTestCase):
self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, enable=0)
for i in self.lo_interfaces:
self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 2,
- bvi=1, enable=0)
+ port_type=L2_PORT_TYPE.BVI,
+ enable=0)
+
+ self.vapi.bridge_domain_add_del(1, is_add=0)
+
+ def test_uu_fwd(self):
+ """ UU Flood """
+
+ #
+ # Create a single bridge Domain
+ #
+ self.vapi.bridge_domain_add_del(1, uu_flood=1)
+
+ #
+ # add each interface to the BD. 3 interfaces per split horizon group
+ #
+ for i in self.pg_interfaces[0:4]:
+ self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 0)
+
+ #
+ # an unknown unicast packet
+ #
+ p_uu = (Ether(dst="00:00:00:c1:5c:00",
+ src="00:00:de:ad:be:ef") /
+ IP(src="10.10.10.10", dst="1.1.1.1") /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ #
+ # input on pg0, expected copies on pg1->4
+ #
+ self.pg0.add_stream(p_uu*65)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ for i in self.pg_interfaces[1:4]:
+ rx0 = i.get_capture(65, timeout=1)
+
+ #
+ # use pg8 as the uu-fwd interface
+ #
+ self.vapi.sw_interface_set_l2_bridge(self.pg8.sw_if_index, 1, 0,
+ port_type=L2_PORT_TYPE.UU_FWD)
+
+ #
+ # expect the UU packet on the uu-fwd interface and not be flooded
+ #
+ self.pg0.add_stream(p_uu*65)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg8.get_capture(65, timeout=1)
+
+ for i in self.pg_interfaces[0:4]:
+ i.assert_nothing_captured(remark="UU not flooded")
+
+ #
+ # remove the uu-fwd interface and expect UU to be flooded again
+ #
+ self.vapi.sw_interface_set_l2_bridge(self.pg8.sw_if_index, 1, 0,
+ port_type=L2_PORT_TYPE.UU_FWD,
+ enable=0)
+
+ self.pg0.add_stream(p_uu*65)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ for i in self.pg_interfaces[1:4]:
+ rx0 = i.get_capture(65, timeout=1)
+
+ #
+ # change the BD config to not support UU-flood
+ #
+ self.vapi.bridge_flags(1, 0, BRIDGE_FLAGS.UU_FLOOD)
+
+ self.send_and_assert_no_replies(self.pg0, p_uu)
+
+ #
+ # re-add the uu-fwd interface
+ #
+ self.vapi.sw_interface_set_l2_bridge(self.pg8.sw_if_index, 1, 0,
+ port_type=L2_PORT_TYPE.UU_FWD)
+ self.logger.info(self.vapi.cli("sh bridge 1 detail"))
+
+ self.pg0.add_stream(p_uu*65)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx0 = self.pg8.get_capture(65, timeout=1)
+
+ for i in self.pg_interfaces[0:4]:
+ i.assert_nothing_captured(remark="UU not flooded")
+
+ #
+ # remove the uu-fwd interface
+ #
+ self.vapi.sw_interface_set_l2_bridge(self.pg8.sw_if_index, 1, 0,
+ port_type=L2_PORT_TYPE.UU_FWD,
+ enable=0)
+ self.send_and_assert_no_replies(self.pg0, p_uu)
+
+ #
+ # cleanup
+ #
+ for i in self.pg_interfaces[:4]:
+ self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, enable=0)
self.vapi.bridge_domain_add_del(1, is_add=0)