sub_if_on_pg3.remove_vpp_config()
sub_if_on_pg2.remove_vpp_config()
- def test_l2_emulation(self):
- """ L2 Emulation """
-
- #
- # non distinct L3 packets, in the tag/non-tag combos
- #
- pkt_no_tag = (Ether(src=self.pg0.remote_mac,
- dst=self.pg1.remote_mac) /
- IP(src="2.2.2.2",
- dst="1.1.1.1") /
- UDP(sport=1234, dport=1234) /
- Raw(b'\xa5' * 100))
- pkt_to_tag = (Ether(src=self.pg0.remote_mac,
- dst=self.pg2.remote_mac) /
- IP(src="2.2.2.2",
- dst="1.1.1.2") /
- UDP(sport=1234, dport=1234) /
- Raw(b'\xa5' * 100))
- pkt_from_tag = (Ether(src=self.pg3.remote_mac,
- dst=self.pg2.remote_mac) /
- Dot1Q(vlan=93) /
- IP(src="2.2.2.2",
- dst="1.1.1.1") /
- UDP(sport=1234, dport=1234) /
- Raw(b'\xa5' * 100))
- pkt_from_to_tag = (Ether(src=self.pg3.remote_mac,
- dst=self.pg2.remote_mac) /
- Dot1Q(vlan=93) /
- IP(src="2.2.2.2",
- dst="1.1.1.2") /
- UDP(sport=1234, dport=1234) /
- Raw(b'\xa5' * 100))
- pkt_bcast = (Ether(src=self.pg0.remote_mac,
- dst="ff:ff:ff:ff:ff:ff") /
- IP(src="2.2.2.2",
- dst="255.255.255.255") /
- UDP(sport=1234, dport=1234) /
- Raw(b'\xa5' * 100))
-
- #
- # A couple of sub-interfaces for tags
- #
- sub_if_on_pg2 = VppDot1QSubint(self, self.pg2, 92)
- sub_if_on_pg3 = VppDot1QSubint(self, self.pg3, 93)
- sub_if_on_pg2.admin_up()
- sub_if_on_pg3.admin_up()
-
- #
- # Put all the interfaces into a new bridge domain
- #
- self.vapi.sw_interface_set_l2_bridge(
- rx_sw_if_index=self.pg0.sw_if_index, bd_id=1)
- self.vapi.sw_interface_set_l2_bridge(
- rx_sw_if_index=self.pg1.sw_if_index, bd_id=1)
- self.vapi.sw_interface_set_l2_bridge(
- rx_sw_if_index=sub_if_on_pg2.sw_if_index, bd_id=1)
- self.vapi.sw_interface_set_l2_bridge(
- rx_sw_if_index=sub_if_on_pg3.sw_if_index, bd_id=1)
- self.vapi.l2_interface_vlan_tag_rewrite(
- sw_if_index=sub_if_on_pg2.sw_if_index, vtr_op=L2_VTR_OP.L2_POP_1,
- push_dot1q=92)
- self.vapi.l2_interface_vlan_tag_rewrite(
- sw_if_index=sub_if_on_pg3.sw_if_index, vtr_op=L2_VTR_OP.L2_POP_1,
- push_dot1q=93)
-
- #
- # Disable UU flooding, learning and ARP termination. makes this test
- # easier as unicast packets are dropped if not extracted.
- #
- self.vapi.bridge_flags(bd_id=1, is_set=0,
- flags=(1 << 0) | (1 << 3) | (1 << 4))
-
- #
- # Add a DVR route to steer traffic at L3
- #
- route_1 = VppIpRoute(
- self, "1.1.1.1", 32,
- [VppRoutePath("0.0.0.0",
- self.pg1.sw_if_index,
- type=FibPathType.FIB_PATH_TYPE_DVR)])
- route_2 = VppIpRoute(
- self, "1.1.1.2", 32,
- [VppRoutePath("0.0.0.0",
- sub_if_on_pg2.sw_if_index,
- type=FibPathType.FIB_PATH_TYPE_DVR)])
- route_1.add_vpp_config()
- route_2.add_vpp_config()
-
- #
- # packets are dropped because bridge does not flood unknown unicast
- #
- self.send_and_assert_no_replies(self.pg0, pkt_no_tag)
-
- #
- # Enable L3 extraction on pgs
- #
- self.vapi.l2_emulation(self.pg0.sw_if_index)
- self.vapi.l2_emulation(self.pg1.sw_if_index)
- self.vapi.l2_emulation(sub_if_on_pg2.sw_if_index)
- self.vapi.l2_emulation(sub_if_on_pg3.sw_if_index)
-
- #
- # now we expect the packet forward according to the DVR route
- #
- rx = self.send_and_expect(self.pg0, pkt_no_tag * NUM_PKTS, self.pg1)
- self.assert_same_mac_addr(pkt_no_tag, rx)
- self.assert_has_no_tag(rx)
-
- rx = self.send_and_expect(self.pg0, pkt_to_tag * NUM_PKTS, self.pg2)
- self.assert_same_mac_addr(pkt_to_tag, rx)
- self.assert_has_vlan_tag(92, rx)
-
- rx = self.send_and_expect(self.pg3, pkt_from_tag * NUM_PKTS, self.pg1)
- self.assert_same_mac_addr(pkt_from_tag, rx)
- self.assert_has_no_tag(rx)
-
- rx = self.send_and_expect(self.pg3,
- pkt_from_to_tag * NUM_PKTS,
- self.pg2)
- self.assert_same_mac_addr(pkt_from_tag, rx)
- self.assert_has_vlan_tag(92, rx)
-
- #
- # but broadcast packets are still flooded
- #
- self.send_and_expect(self.pg0, pkt_bcast * 33, self.pg2)
-
- #
- # cleanup
- #
- self.vapi.l2_emulation(self.pg0.sw_if_index,
- enable=0)
- self.vapi.l2_emulation(self.pg1.sw_if_index,
- enable=0)
- self.vapi.l2_emulation(sub_if_on_pg2.sw_if_index,
- enable=0)
- self.vapi.l2_emulation(sub_if_on_pg3.sw_if_index,
- enable=0)
-
- self.vapi.sw_interface_set_l2_bridge(
- rx_sw_if_index=self.pg0.sw_if_index, bd_id=1, enable=0)
- self.vapi.sw_interface_set_l2_bridge(
- rx_sw_if_index=self.pg1.sw_if_index, bd_id=1, enable=0)
- self.vapi.sw_interface_set_l2_bridge(
- rx_sw_if_index=sub_if_on_pg2.sw_if_index, bd_id=1, enable=0)
- self.vapi.sw_interface_set_l2_bridge(
- rx_sw_if_index=sub_if_on_pg3.sw_if_index, bd_id=1, enable=0)
-
- route_1.remove_vpp_config()
- route_2.remove_vpp_config()
- sub_if_on_pg3.remove_vpp_config()
- sub_if_on_pg2.remove_vpp_config()
-
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff