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/*
* Copyright (c) 2015-2016 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
option version = "1.1.0";
import "vnet/fib/fib_types.api";
import "vnet/ip/ip_types.api";
/** \brief Bind/Unbind an MPLS local label to an IP prefix. i.e. create
a per-prefix label entry.
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@param mb_mpls_table_id - The MPLS table-id the MPLS entry will be added in
@param mb_label - The MPLS label value to bind
@param mb_ip_table_id - The IP table-id of the IP prefix to bind to.
@param mb_is_bind - Bind or unbind
@param mb_is_ip4 - The prefix to bind to is IPv4
@param mb_prefix - IP prefix
*/
autoreply define mpls_ip_bind_unbind
{
u32 client_index;
u32 context;
u32 mb_mpls_table_id;
u32 mb_label;
u32 mb_ip_table_id;
u8 mb_is_bind;
vl_api_prefix_t mb_prefix;
};
typeonly define mpls_tunnel
{
u32 mt_sw_if_index;
u32 mt_tunnel_index;
u8 mt_l2_only;
u8 mt_is_multicast;
u8 mt_n_paths;
vl_api_fib_path_t mt_paths[mt_n_paths];
};
define mpls_tunnel_add_del
{
u32 client_index;
u32 context;
u8 mt_is_add;
vl_api_mpls_tunnel_t mt_tunnel;
};
/** \brief Reply for MPLS tunnel add / del request
@param context - returned sender context, to match reply w/ request
@param retval - return code
@param sw_if_index - SW interface index of the tunnel created
*/
define mpls_tunnel_add_del_reply
{
u32 context;
i32 retval;
u32 sw_if_index;
u32 tunnel_index;
};
/** \brief Dump mpls eth tunnel table
@param client_index - opaque cookie to identify the sender
@param sw_if_index - sw_if_index of the MPLS tunnel
(as returned from the create)
*/
define mpls_tunnel_dump
{
u32 client_index;
u32 context;
u32 sw_if_index;
};
/** \brief mpls tunnel details
*/
manual_endian manual_print define mpls_tunnel_details
{
u32 context;
vl_api_mpls_tunnel_t mt_tunnel;
};
/** \brief MPLS Route Add / del route
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@param mt_table_id - The MPLS table-id the route is added in
@param mt_is_add - Is this a route add or delete
@param mt_name - A client provided name/tag for the table. If this
is not set by the client, then VPP will generate
something meaningfull.
*/
typeonly define mpls_table
{
u32 mt_table_id;
u8 mt_name[64];
};
autoreply define mpls_table_add_del
{
u32 client_index;
u32 context;
u8 mt_is_add;
vl_api_mpls_table_t mt_tabl#!/usr/bin/env python3
import unittest
from scapy.packet import Raw
from scapy.layers.l2 import Ether, Dot1Q, GRE, ERSPAN
from scapy.layers.inet import IP, UDP
from scapy.layers.vxlan import VXLAN
from framework import VppTestCase, VppTestRunner
from util import Host, ppp
from vpp_sub_interface import L2_VTR_OP, VppDot1QSubint, VppDot1ADSubint
from vpp_gre_interface import VppGreInterface
from vpp_vxlan_tunnel import VppVxlanTunnel
from collections import namedtuple
from vpp_papi import VppEnum
Tag = namedtuple('Tag', ['dot1', 'vlan'])
DOT1AD = 0x88A8
DOT1Q = 0x8100
class TestSpan(VppTestCase):
""" SPAN Test Case """
@classmethod
def setUpClass(cls):
super(TestSpan, cls).setUpClass()
# Test variables
cls.pkts_per_burst = 257 # Number of packets per burst
# create 3 pg interfaces
cls.create_pg_interfaces(range(3))
cls.bd_id = 55
cls.sub_if = VppDot1QSubint(cls, cls.pg0, 100)
cls.vlan_sub_if = VppDot1QSubint(cls, cls.pg2, 300)
cls.vlan_sub_if.set_vtr(L2_VTR_OP.L2_POP_1, tag=300)
cls.qinq_sub_if = VppDot1ADSubint(cls, cls.pg2, 33, 400, 500)
cls.qinq_sub_if.set_vtr(L2_VTR_OP.L2_POP_2, outer=500, inner=400)
# packet flows mapping pg0 -> pg1, pg2 -> pg3, etc.
cls.flows = dict()
cls.flows[cls.pg0] = [cls.pg1]
cls.flows[cls.pg1] = [cls.pg0]
# packet sizes
cls.pg_if_packet_sizes = [64, 512, 1518] # , 9018]
# setup all interfaces
for i in cls.pg_interfaces:
i.admin_up()
i.config_ip4()
i.resolve_arp()
def setUp(self):
super(TestSpan, self).setUp()
self.vxlan = VppVxlanTunnel(self, src=self.pg2.local_ip4,
dst=self.pg2.remote_ip4, vni=1111)
self.vxlan.add_vpp_config()
self.reset_packet_infos()
def tearDown(self):
super(TestSpan, self).tearDown()
def show_commands_at_teardown(self):
self.logger.info(self.vapi.ppcli("show interface span"))
def xconnect(self, a, b, is_add=1):
self.vapi.sw_interface_set_l2_xconnect(a, b, enable=is_add)
self.vapi.sw_interface_set_l2_xconnect(b, a, enable=is_add)
def bridge(self, sw_if_index, is_add=1):
self.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=sw_if_index,
bd_id=self.bd_id, enable=is_add)
def _remove_tag(self, packet, vlan, tag_type):
self.assertEqual(packet.type, tag_type)
payload = packet.payload
self.assertEqual(payload.vlan, vlan)
inner_type = payload.type
payload = payload.payload
packet.remove_payload()
packet.add_payload(payload)
packet.type = inner_type
def remove_tags(self, packet, tags):
for t in tags:
self._remove_tag(packet, t.vlan, t.dot1)
return packet
def decap_gre(self, pkt):
"""
Decapsulate the original payload frame by removing GRE header
"""
self.assertEqual(pkt[Ether].src, self.pg2.local_mac)
self.assertEqual(pkt[Ether].dst, self.pg2.remote_mac)
self.assertEqual(pkt[IP].src, self.pg2.local_ip4)
self.assertEqual(pkt[IP].dst, self.pg2.remote_ip4)
return pkt[GRE].payload
def decap_erspan(self, pkt, session):
"""
Decapsulate the original payload frame by removing ERSPAN header
"""
self.assertEqual(pkt[Ether].src, self.pg2.local_mac)
self.assertEqual(pkt[Ether].dst, self.pg2.remote_mac)
self.assertEqual(pkt[IP].src, self.pg2.local_ip4)
self.assertEqual(pkt[IP].dst, self.pg2.remote_ip4)
self.assertEqual(pkt[ERSPAN].ver, 1)
self.assertEqual(pkt[ERSPAN].vlan, 0)
self.assertEqual(pkt[ERSPAN].cos, 0)
self.assertEqual(pkt[ERSPAN].en, 3)
self.assertEqual(pkt[ERSPAN].t, 0)
self.assertEqual(pkt[ERSPAN].session_id, session)
self.assertEqual(pkt[ERSPAN].reserved, 0)
self.assertEqual(pkt[ERSPAN].index, 0)
return pkt[ERSPAN].payload
def decap_vxlan(self, pkt):
"""
Decapsulate the original payload frame by removing VXLAN header
"""
self.assertEqual(pkt[Ether].src, self.pg2.local_mac)
self.assertEqual(pkt[Ether].dst, self.pg2.remote_mac)
self.assertEqual(pkt[IP].src, self.pg2.local_ip4)
self.assertEqual(pkt[IP].dst, self.pg2.remote_ip4)
return pkt[VXLAN].payload
def create_stream(self, src_if, packet_sizes, do_dot1=False, bcast=False):
pkts = []
dst_if = self.flows[src_if][0]
dst_mac = src_if.remote_mac
if bcast:
dst_mac = "ff:ff:ff:ff:ff:ff"
for i in range(0, self.pkts_per_burst):
payload = "span test"
size = packet_sizes[int((i / 2) % len(packet_sizes))]
p = (Ether(src=src_if.local_mac, dst=dst_mac) /
IP(src=src_if.remote_ip4, dst=dst_if.remote_ip4) /
UDP(sport=10000 + src_if.sw_if_index * 1000 + i, dport=1234) /
Raw(payload))
if do_dot1:
p = self.sub_if.add_dot1_layer(p)
self.extend_packet(p, size)
pkts.append(p)
return pkts
def verify_capture(self, cap1, cap2):
self.assertEqual(len(cap1), len(cap2),
"Different number of sent and mirrored packets :"
"%u != %u" % (len(cap1), len(cap2)))
pkts1 = [(pkt[Ether] / pkt[IP] / pkt[UDP]) for pkt in cap1]
pkts2 = [(pkt[Ether] / pkt[IP] / pkt[UDP]) for pkt in cap2]
self.assertEqual(pkts1.sort(), pkts2.sort())
def test_device_span(self):
""" SPAN device rx mirror """
# Create bi-directional cross-connects between pg0 and pg1
self.xconnect(self.pg0.sw_if_index, self.pg1.sw_if_index)
# Create incoming packet streams for packet-generator interfaces
pkts = self.create_stream(self.pg0, self.pg_if_packet_sizes)
self.pg0.add_stream(pkts)
# Enable SPAN on pg0 (mirrored to pg2)
self.vapi.sw_interface_span_enable_disable(
self.pg0.sw_if_index, self.pg2.sw_if_index)
self.logger.info(self.vapi.ppcli("show interface span"))
# Enable packet capturing and start packet sending
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# Verify packets outgoing packet streams on mirrored interface (pg2)
n_pkts = len(pkts)
pg1_pkts = self.pg1.get_capture(n_pkts)
pg2_pkts = self.pg2.get_capture(n_pkts)
# Disable SPAN on pg0 (mirrored to pg2)
self.vapi.sw_interface_span_enable_disable(
self.pg0.sw_if_index, self.pg2.sw_if_index, state=0)
self.xconnect(self.pg0.sw_if_index, self.pg1.sw_if_index, is_add=0)
self.verify_capture(pg1_pkts, pg2_pkts)
def test_span_l2_rx(self):
""" SPAN l2 rx mirror """
self.sub_if.admin_up()
self.bridge(self.pg2.sw_if_index)
# Create bi-directional cross-connects between pg0 subif and pg1
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index)
# Create incoming packet streams for packet-generator interfaces
pkts = self.create_stream(
self.pg0, self.pg_if_packet_sizes, do_dot1=True)
self.pg0.add_stream(pkts)
# Enable SPAN on pg0 (mirrored to pg2)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, self.pg2.sw_if_index, is_l2=1)
self.logger.info(self.vapi.ppcli("show interface span"))
# Enable packet capturing and start packet sending
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# Verify packets outgoing packet streams on mirrored interface (pg2)
pg2_expected = len(pkts)
pg1_pkts = self.pg1.get_capture(pg2_expected)
pg2_pkts = self.pg2.get_capture(pg2_expected)
self.bridge(self.pg2.sw_if_index, is_add=0)
# Disable SPAN on pg0 (mirrored to pg2)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, self.pg2.sw_if_index, state=0, is_l2=1)
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0)
self.verify_capture(pg1_pkts, pg2_pkts)
def test_span_l2_rx_dst_vxlan(self):
""" SPAN l2 rx mirror into vxlan """
self.sub_if.admin_up()
self.vapi.sw_interface_set_flags(self.vxlan.sw_if_index,
flags=1)
self.bridge(self.vxlan.sw_if_index, is_add=1)
# Create bi-directional cross-connects between pg0 subif and pg1
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index)
# Create incoming packet streams for packet-generator interfaces
pkts = self.create_stream(
self.pg0, self.pg_if_packet_sizes, do_dot1=True)
self.pg0.add_stream(pkts)
# Enable SPAN on pg0 sub if (mirrored to vxlan)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, self.vxlan.sw_if_index, is_l2=1)
self.logger.info(self.vapi.ppcli("show interface span"))
# Enable packet capturing and start packet sending
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# Verify packets outgoing packet streams on mirrored interface (pg2)
n_pkts = len(pkts)
pg1_pkts = self.pg1.get_capture(n_pkts)
pg2_pkts = [self.decap_vxlan(p) for p in self.pg2.get_capture(n_pkts)]
self.bridge(self.vxlan.sw_if_index, is_add=0)
# Disable SPAN on pg0 sub if (mirrored to vxlan)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, self.vxlan.sw_if_index, state=0, is_l2=1)
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0)
self.verify_capture(pg1_pkts, pg2_pkts)
def test_span_l2_rx_dst_gre_erspan(self):
""" SPAN l2 rx mirror into gre-erspan """
self.sub_if.admin_up()
gre_if = VppGreInterface(self, self.pg2.local_ip4,
self.pg2.remote_ip4,
session=543,
type=(VppEnum.vl_api_gre_tunnel_type_t.
GRE_API_TUNNEL_TYPE_ERSPAN))
gre_if.add_vpp_config()
gre_if.admin_up()
self.bridge(gre_if.sw_if_index)
# Create bi-directional cross-connects between pg0 and pg1
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=1)
# Create incoming packet streams for packet-generator interfaces
pkts = self.create_stream(
self.pg0, self.pg_if_packet_sizes, do_dot1=True)
self.pg0.add_stream(pkts)
# Enable SPAN on pg0 sub if (mirrored to gre-erspan)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, gre_if.sw_if_index, is_l2=1)
# Enable packet capturing and start packet sending
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# Verify packets outgoing packet streams on mirrored interface (pg2)
n_pkts = len(pkts)
pg1_pkts = self.pg1.get_capture(n_pkts)
pg2_pkts = self.pg2.get_capture(n_pkts)
def decap(p): return self.decap_erspan(p, session=543)
pg2_decaped = [decap(p) for p in pg2_pkts]
self.bridge(gre_if.sw_if_index, is_add=0)
# Disable SPAN on pg0 sub if
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, gre_if.sw_if_index, state=0, is_l2=1)
gre_if.remove_vpp_config()
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0)
self.verify_capture(pg1_pkts, pg2_decaped)
def test_span_l2_rx_dst_gre_subif_vtr(self):
""" SPAN l2 rx mirror into gre-subif+vtr """
self.sub_if.admin_up()
gre_if = VppGreInterface(self, self.pg2.local_ip4,
self.pg2.remote_ip4,
type=(VppEnum.vl_api_gre_tunnel_type_t.
GRE_API_TUNNEL_TYPE_TEB))
gre_if.add_vpp_config()
gre_if.admin_up()
gre_sub_if = VppDot1QSubint(self, gre_if, 500)
gre_sub_if.set_vtr(L2_VTR_OP.L2_POP_1, tag=500)
gre_sub_if.admin_up()
self.bridge(gre_sub_if.sw_if_index)
# Create bi-directional cross-connects between pg0 and pg1
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=1)
# Create incoming packet streams for packet-generator interfaces
pkts = self.create_stream(
self.pg0, self.pg_if_packet_sizes, do_dot1=True)
self.pg0.add_stream(pkts)
# Enable SPAN on pg0 sub if (mirrored to gre sub if)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, gre_sub_if.sw_if_index, is_l2=1)
# Enable packet capturing and start packet sending
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# Verify packets outgoing packet streams on mirrored interface (pg2)
n_pkts = len(pkts)
pg1_pkts = self.pg1.get_capture(n_pkts)
pg2_pkts = self.pg2.get_capture(n_pkts)
def decap(p): return self.remove_tags(
self.decap_gre(p), [Tag(dot1=DOT1Q, vlan=500)])
pg2_decaped = [decap(p) for p in pg2_pkts]
self.bridge(gre_sub_if.sw_if_index, is_add=0)
# Disable SPAN on pg0 sub if
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, gre_sub_if.sw_if_index, state=0, is_l2=1)
gre_if.remove_vpp_config()
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0)
self.verify_capture(pg1_pkts, pg2_decaped)
def test_span_l2_rx_dst_1q_vtr(self):
""" SPAN l2 rx mirror into 1q subif+vtr """
self.sub_if.admin_up()
self.vlan_sub_if.admin_up()
self.bridge(self.vlan_sub_if.sw_if_index)
# Create bi-directional cross-connects between pg0 and pg1
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=1)
# Create incoming packet streams for packet-generator interfaces
pkts = self.create_stream(
self.pg0, self.pg_if_packet_sizes, do_dot1=True)
self.pg0.add_stream(pkts)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, self.vlan_sub_if.sw_if_index, is_l2=1)
# Enable packet capturing and start packet sending
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# Verify packets outgoing packet streams on mirrored interface (pg2)
n_pkts = len(pkts)
pg1_pkts = self.pg1.get_capture(n_pkts)
pg2_pkts = self.pg2.get_capture(n_pkts)
pg2_untagged = [self.remove_tags(p, [Tag(dot1=DOT1Q, vlan=300)])
for p in pg2_pkts]
self.bridge(self.vlan_sub_if.sw_if_index, is_add=0)
# Disable SPAN on pg0 sub if (mirrored to vxlan)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, self.vlan_sub_if.sw_if_index, state=0,
is_l2=1)
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0)
self.verify_capture(pg1_pkts, pg2_untagged)
def test_span_l2_rx_dst_1ad_vtr(self):
""" SPAN l2 rx mirror into 1ad subif+vtr """
self.sub_if.admin_up()
self.qinq_sub_if.admin_up()
self.bridge(self.qinq_sub_if.sw_if_index)
# Create bi-directional cross-connects between pg0 and pg1
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=1)
# Create incoming packet streams for packet-generator interfaces
pkts = self.create_stream(
self.pg0, self.pg_if_packet_sizes, do_dot1=True)
self.pg0.add_stream(pkts)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, self.qinq_sub_if.sw_if_index, is_l2=1)
# Enable packet capturing and start packet sending
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# Verify packets outgoing packet streams on mirrored interface (pg2)
n_pkts = len(pkts)
pg1_pkts = self.pg1.get_capture(n_pkts)
pg2_pkts = self.pg2.get_capture(n_pkts)
pg2_untagged = [self.remove_tags(p, [Tag(dot1=DOT1AD, vlan=400),
Tag(dot1=DOT1Q, vlan=500)])
for p in pg2_pkts]
self.bridge(self.qinq_sub_if.sw_if_index, is_add=0)
# Disable SPAN on pg0 sub if (mirrored to vxlan)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, self.qinq_sub_if.sw_if_index, state=0,
is_l2=1)
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0)
self.verify_capture(pg1_pkts, pg2_untagged)
def test_l2_tx_span(self):
""" SPAN l2 tx mirror """
self.sub_if.admin_up()
self.bridge(self.pg2.sw_if_index)
# Create bi-directional cross-connects between pg0 and pg1
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index)
# Create incoming packet streams for packet-generator interfaces
pkts = self.create_stream(
self.pg0, self.pg_if_packet_sizes, do_dot1=True)
self.pg0.add_stream(pkts)
# Enable SPAN on pg1 (mirrored to pg2)
self.vapi.sw_interface_span_enable_disable(
self.pg1.sw_if_index, self.pg2.sw_if_index, is_l2=1, state=2)
self.logger.info(self.vapi.ppcli("show interface span"))
# Enable packet capturing and start packet sending
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# Verify packets outgoing packet streams on mirrored interface (pg2)
n_pkts = len(pkts)
pg1_pkts = self.pg1.get_capture(n_pkts)
pg2_pkts = self.pg2.get_capture(n_pkts)
self.bridge(self.pg2.sw_if_index, is_add=0)
# Disable SPAN on pg0 (mirrored to pg2)
self.vapi.sw_interface_span_enable_disable(
self.pg1.sw_if_index, self.pg2.sw_if_index, state=0, is_l2=1)
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0)
self.verify_capture(pg1_pkts, pg2_pkts)
def test_l2_rx_tx_span(self):
""" SPAN l2 rx tx mirror """
self.sub_if.admin_up()
self.bridge(self.pg2.sw_if_index)
# Create bi-directional cross-connects between pg0 and pg1
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index)
# Create incoming packet streams for packet-generator interfaces
pg0_pkts = self.create_stream(
self.pg0, self.pg_if_packet_sizes, do_dot1=True)
self.pg0.add_stream(pg0_pkts)
pg1_pkts = self.create_stream(
self.pg1, self.pg_if_packet_sizes, do_dot1=False)
self.pg1.add_stream(pg1_pkts)
# Enable SPAN on pg0 (mirrored to pg2)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, self.pg2.sw_if_index, is_l2=1, state=3)
self.logger.info(self.vapi.ppcli("show interface span"))
# Enable packet capturing and start packet sending
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# Verify packets outgoing packet streams on mirrored interface (pg2)
pg0_expected = len(pg1_pkts)
pg1_expected = len(pg0_pkts)
pg2_expected = pg0_expected + pg1_expected
pg0_pkts = self.pg0.get_capture(pg0_expected)
pg1_pkts = self.pg1.get_capture(pg1_expected)
pg2_pkts = self.pg2.get_capture(pg2_expected)
self.bridge(self.pg2.sw_if_index, is_add=0)
# Disable SPAN on pg0 (mirrored to pg2)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, self.pg2.sw_if_index, state=0, is_l2=1)
self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0)
self.verify_capture(pg0_pkts + pg1_pkts, pg2_pkts)
def test_l2_bcast_mirror(self):
""" SPAN l2 broadcast mirror """
self.sub_if.admin_up()
self.bridge(self.pg2.sw_if_index)
# Create bi-directional cross-connects between pg0 and pg1
self.vapi.sw_interface_set_l2_bridge(
rx_sw_if_index=self.sub_if.sw_if_index, bd_id=99, enable=1)
self.vapi.sw_interface_set_l2_bridge(
rx_sw_if_index=self.pg1.sw_if_index, bd_id=99, enable=1)
# Create incoming packet streams for packet-generator interfaces
pg0_pkts = self.create_stream(
self.pg0, self.pg_if_packet_sizes, do_dot1=True, bcast=True)
self.pg0.add_stream(pg0_pkts)
pg1_pkts = self.create_stream(
self.pg1, self.pg_if_packet_sizes, do_dot1=False, bcast=True)
self.pg1.add_stream(pg1_pkts)
# Enable SPAN on pg0 (mirrored to pg2)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, self.pg2.sw_if_index, is_l2=1, state=3)
self.logger.info(self.vapi.ppcli("show interface span"))
# Enable packet capturing and start packet sending
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
# Verify packets outgoing packet streams on mirrored interface (pg2)
pg0_expected = len(pg1_pkts)
pg1_expected = len(pg0_pkts)
pg2_expected = pg0_expected + pg1_expected
pg0_pkts = self.pg0.get_capture(pg0_expected)
pg1_pkts = self.pg1.get_capture(pg1_expected)
pg2_pkts = self.pg2.get_capture(pg2_expected)
self.bridge(self.pg2.sw_if_index, is_add=0)
self.vapi.sw_interface_set_l2_bridge(
rx_sw_if_index=self.sub_if.sw_if_index, bd_id=99, enable=0)
self.vapi.sw_interface_set_l2_bridge(
rx_sw_if_index=self.pg1.sw_if_index, bd_id=99, enable=0)
# Disable SPAN on pg0 (mirrored to pg2)
self.vapi.sw_interface_span_enable_disable(
self.sub_if.sw_if_index, self.pg2.sw_if_index, state=0, is_l2=1)
self.verify_capture(pg0_pkts + pg1_pkts, pg2_pkts)
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
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