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L2 BD: introduce a BD interface on which to send UU packets

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Change-Id: I21ad6b04c19c8735d057174b1f260a59f2812241
Signed-off-by: Neale Ranns <nranns@cisco.com>
This commit is contained in:
Neale Ranns
2018-09-05 09:13:57 -07:00
committed by John Lo
parent 6a30b5f918
commit b474380f82
29 changed files with 648 additions and 109 deletions
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111
test/test_l2_flood.py
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@@ -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)