tests/system-userspace-packet-type-aware.at

   1 AT_BANNER([packet-type-aware pipeline])
   2
   3 AT_SETUP([ptap - triangle bridge setup with L2 and L3 GRE tunnels])
   4
   5 ########################
   6 # GRE tunneling test setup for PTAP bridge
   7 #
   8 #     192.168.10.10           192.168.10.20             192.168.10.30
   9 #          n1                       n2                        n3
  10 #          |ovs-n1                  |ovs-n2                   |ovs-n3
  11 #   +------o------+          +------o------+           +------o------+
  12 #   |    br-in1   |          |    br-in2   |           |    br-in3   |
  13 #   |             |          |   (PTAP)    |           |             |
  14 #   +------o------+          +------o------+           +------o------+
  15 #         gre                      gre                       gre
  16 #   10.0.0.1                (10.0.0.2)                (10.0.0.3)
  17 #  (20.0.0.1)                20.0.0.2                 (20.0.0.3)
  18 #  (30.0.0.1) LOCAL         (30.0.0.2) LOCAL           30.0.0.3  LOCAL
  19 #   +-----------o-+          +-----------o-+           +-----------o-+
  20 #   |    br-p1    |          |    br-p2    |           |    br-p3    |
  21 #   +------o------+          +------o------+           +------o------+
  22 #     p1-0 |                        | p2-0                    | p3-0
  23 #     p0-1 |                        | p0-2                    | p0-3
  24 #       +--o------------------------o-------------------------o--+
  25 #       |                          br0                           |
  26 #       +--------------------------------------------------------+
  27 #"
  28 #   GRE tunnel ports:
  29 #      No     Bridge      Name        Packet-type Remote bridge & ports
  30 #     -----------------------------------------------------------------------
  31 #      1020   br-in1      gre-12      l2          br-in2 2010 (ptap)
  32 #      1021   br-in1      gre-12_l3   l3                same
  33 #      1030   br-in1      gre-13      l2          br-in3 3010 (l2)
  34 #      2010   br-in2      gre-21      ptap        br-in1 1020 (l2), 1021 (l3)
  35 #      2030   br-in2      gre-23      ptap        br-in3 3020 (l2), 3021 (l3)
  36 #      3010   br-in3      gre-31      l2          br-in1 1030 (l2)
  37 #      3020   br-in3      gre-32      l2          br-in2 2010 (ptap)
  38 #      3021   br-in3      gre-32_l3   l3                same
  39
  40
  41 AT_SKIP_IF([test $HAVE_NC = no])
  42 OVS_TRAFFIC_VSWITCHD_START()
  43
  44 HWADDR_BRP1=aa:55:00:00:00:01
  45 HWADDR_BRP2=aa:55:00:00:00:02
  46 HWADDR_BRP3=aa:55:00:00:00:03
  47
  48 dnl Create veth ports to connect br0 with br-p1, br-p2 and br-p3
  49 AT_CHECK([ip link add p1-0 type veth peer name p0-1])
  50 AT_CHECK([ip link set p1-0 up])
  51 AT_CHECK([ip link set p0-1 up])
  52 AT_CHECK([ip link set dev p1-0 mtu 3300])
  53 AT_CHECK([ip link set dev p0-1 mtu 3300])
  54 on_exit 'ip link del p0-1'
  55
  56 AT_CHECK([ip link add p2-0 type veth peer name p0-2])
  57 AT_CHECK([ip link set p2-0 up])
  58 AT_CHECK([ip link set p0-2 up])
  59 AT_CHECK([ip link set dev p2-0 mtu 3300])
  60 AT_CHECK([ip link set dev p0-2 mtu 3300])
  61 on_exit 'ip link del p0-2'
  62
  63 AT_CHECK([ip link add p3-0 type veth peer name p0-3])
  64 AT_CHECK([ip link set p3-0 up])
  65 AT_CHECK([ip link set p0-3 up])
  66 AT_CHECK([ip link set dev p3-0 mtu 3300])
  67 AT_CHECK([ip link set dev p0-3 mtu 3300])
  68 on_exit 'ip link del p0-3'
  69
  70 # Setup bridge infrastructure
  71 AT_CHECK([
  72     ovs-vsctl add-br br-in1 -- \
  73         set bridge br-in1 datapath_type=netdev fail-mode=standalone
  74     ovs-vsctl add-br br-in2 -- \
  75         set bridge br-in2 datapath_type=netdev fail-mode=standalone
  76     ovs-vsctl add-br br-in3 -- \
  77         set bridge br-in3 datapath_type=netdev fail-mode=standalone
  78     ovs-vsctl add-br br-p1 -- \
  79         set bridge br-p1 datapath_type=netdev fail-mode=standalone other-config:hwaddr=$HWADDR_BRP1
  80     ovs-vsctl add-br br-p2 -- \
  81         set bridge br-p2 datapath_type=netdev fail-mode=standalone other-config:hwaddr=$HWADDR_BRP2
  82     ovs-vsctl add-br br-p3 -- \
  83         set bridge br-p3 datapath_type=netdev fail-mode=standalone other-config:hwaddr=$HWADDR_BRP3
  84
  85     ovs-vsctl add-port br-p1 p1-0 -- set interface p1-0 ofport_request=2
  86     ovs-vsctl add-port br-p2 p2-0 -- set interface p2-0 ofport_request=2
  87     ovs-vsctl add-port br-p3 p3-0 -- set interface p3-0 ofport_request=2
  88     ovs-vsctl add-port br0 p0-1 -- set interface p0-1 ofport_request=10
  89     ovs-vsctl add-port br0 p0-2 -- set interface p0-2 ofport_request=20
  90     ovs-vsctl add-port br0 p0-3 -- set interface p0-3 ofport_request=30
  91
  92     # Populate the MAC table of br0
  93     ovs-ofctl del-flows br0
  94     ovs-ofctl add-flow br0 dl_dst=$HWADDR_BRP1,actions=10
  95     ovs-ofctl add-flow br0 dl_dst=$HWADDR_BRP2,actions=20
  96     ovs-ofctl add-flow br0 dl_dst=$HWADDR_BRP3,actions=30
  97
  98     ovs-ofctl del-flows br-in1
  99     ovs-ofctl del-flows br-in2
 100     ovs-ofctl del-flows br-in3
 101     ovs-ofctl del-flows br-p1
 102     ovs-ofctl del-flows br-p2
 103     ovs-ofctl del-flows br-p3
 104 ], [0])
 105
 106 ### Setup GRE tunnels
 107 AT_CHECK([
 108     ovs-vsctl add-port br-in1 gre12 -- \
 109         set interface gre12 type=gre options:remote_ip=10.0.0.2 ofport_request=1020
 110     ovs-vsctl add-port br-in1 gre12_l3 -- \
 111         set interface gre12_l3 type=gre options:remote_ip=10.0.0.2 ofport_request=1021 options:packet_type=legacy_l3
 112     ovs-vsctl add-port br-in1 gre13 -- \
 113         set interface gre13 type=gre options:remote_ip=10.0.0.3 ofport_request=1030
 114
 115     ovs-vsctl add-port br-in2 gre21 -- \
 116         set interface gre21 type=gre options:remote_ip=20.0.0.1 ofport_request=2010 options:packet_type=ptap
 117     ovs-vsctl add-port br-in2 gre23 -- \
 118         set interface gre23 type=gre options:remote_ip=20.0.0.3 ofport_request=2030 options:packet_type=ptap
 119
 120     ovs-vsctl add-port br-in3 gre31 -- \
 121         set interface gre31 type=gre options:remote_ip=30.0.0.1 ofport_request=3010
 122     ovs-vsctl add-port br-in3 gre32 -- \
 123         set interface gre32 type=gre options:remote_ip=30.0.0.2 ofport_request=3020
 124     ovs-vsctl add-port br-in3 gre32_l3 -- \
 125         set interface gre32_l3 type=gre options:remote_ip=30.0.0.2 ofport_request=3021 options:packet_type=legacy_l3
 126 ], [0], [stdout])
 127
 128 AT_CHECK([
 129     ip addr add 10.0.0.1/24 dev br-p1
 130     ip link set br-p1 up
 131 ], [0], [stdout])
 132 OVS_WAIT_UNTIL([ovs-appctl ovs/route/show | grep -q br-p1])
 133
 134 AT_CHECK([
 135     ovs-appctl ovs/route/add 10.0.0.0/24 br-p1
 136     ovs-appctl tnl/arp/set br-p1 10.0.0.1 $HWADDR_BRP1
 137     ovs-appctl tnl/arp/set br-p1 10.0.0.2 $HWADDR_BRP2
 138     ovs-appctl tnl/arp/set br-p1 10.0.0.3 $HWADDR_BRP3
 139 ], [0], [stdout])
 140
 141 AT_CHECK([
 142     ip addr add 20.0.0.2/24 dev br-p2
 143     ip link set br-p2 up
 144 ], [0], [stdout])
 145 OVS_WAIT_UNTIL([ovs-appctl ovs/route/show | grep -q br-p2])
 146
 147 AT_CHECK([
 148     ovs-appctl ovs/route/add 20.0.0.0/24 br-p2
 149     ovs-appctl tnl/arp/set br-p2 20.0.0.1 $HWADDR_BRP1
 150     ovs-appctl tnl/arp/set br-p2 20.0.0.2 $HWADDR_BRP2
 151     ovs-appctl tnl/arp/set br-p2 20.0.0.3 $HWADDR_BRP3
 152 ], [0], [stdout])
 153
 154 AT_CHECK([
 155     ip addr add 30.0.0.3/24 dev br-p3
 156     ip link set br-p3 up
 157 ], [0], [stdout])
 158 OVS_WAIT_UNTIL([ovs-appctl ovs/route/show | grep -q br-p3])
 159
 160 AT_CHECK([
 161     ovs-appctl ovs/route/add 30.0.0.0/24 br-p3
 162     ovs-appctl tnl/arp/set br-p3 30.0.0.1 $HWADDR_BRP1
 163     ovs-appctl tnl/arp/set br-p3 30.0.0.2 $HWADDR_BRP2
 164     ovs-appctl tnl/arp/set br-p3 30.0.0.3 $HWADDR_BRP3
 165 ], [0], [stdout])
 166
 167 AT_CHECK([
 168     ovs-appctl ovs/route/show | grep User:
 169 ], [0], [dnl
 170 User: 10.0.0.0/24 dev br-p1 SRC 10.0.0.1
 171 User: 20.0.0.0/24 dev br-p2 SRC 20.0.0.2
 172 User: 30.0.0.0/24 dev br-p3 SRC 30.0.0.3
 173 ])
 174
 175 AT_CHECK([
 176     ovs-appctl tnl/neigh/show | grep br-p | sort
 177 ], [0], [stdout])
 178
 179
 180 ### Flows in br-p<x>to twist TEP IP addresses in tunnel IP headers
 181 AT_CHECK([
 182     ovs-ofctl add-flow br-p1 in_port:LOCAL,ip,actions=2
 183     ovs-ofctl add-flow br-p1 in_port:2,ip,nw_dst:20.0.0.1,actions=mod_nw_dst:10.0.0.1,mod_nw_src:10.0.0.2,LOCAL
 184     ovs-ofctl add-flow br-p1 in_port:2,ip,nw_dst:30.0.0.1,actions=mod_nw_dst:10.0.0.1,mod_nw_src:10.0.0.3,LOCAL
 185
 186     ovs-ofctl add-flow br-p2 in_port:LOCAL,ip,actions=2
 187     ovs-ofctl add-flow br-p2 in_port:2,ip,nw_dst:10.0.0.2,actions=mod_nw_dst:20.0.0.2,mod_nw_src:20.0.0.1,LOCAL
 188     ovs-ofctl add-flow br-p2 in_port:2,ip,nw_dst:30.0.0.2,actions=mod_nw_dst:20.0.0.2,mod_nw_src:20.0.0.3,LOCAL
 189
 190     ovs-ofctl add-flow br-p3 in_port:LOCAL,ip,actions=2
 191     ovs-ofctl add-flow br-p3 in_port:2,ip,nw_dst:10.0.0.3,actions=mod_nw_dst:30.0.0.3,mod_nw_src:30.0.0.1,LOCAL
 192     ovs-ofctl add-flow br-p3 in_port:2,ip,nw_dst:20.0.0.3,actions=mod_nw_dst:30.0.0.3,mod_nw_src:30.0.0.2,LOCAL
 193 ], [0])
 194
 195 # Strips 'n_packets=...' from ovs-ofctl output.
 196 strip_n_packets () {
 197     sed 's/n_packets=[[0-9]]*, //'
 198 }
 199
 200 # Strips 'n_bytes=...' from ovs-ofctl output.
 201 strip_n_bytes () {
 202     sed 's/n_bytes=[[0-9]]*, //'
 203 }
 204
 205 AT_CHECK([
 206     ovs-ofctl dump-flows br-p1 | ofctl_strip | strip_n_packets | strip_n_bytes | sort | grep actions
 207     ovs-ofctl dump-flows br-p2 | ofctl_strip | strip_n_packets | strip_n_bytes | sort | grep actions
 208     ovs-ofctl dump-flows br-p3 | ofctl_strip | strip_n_packets | strip_n_bytes | sort | grep actions
 209 ], [0], [dnl
 210  ip,in_port=2,nw_dst=20.0.0.1 actions=mod_nw_dst:10.0.0.1,mod_nw_src:10.0.0.2,LOCAL
 211  ip,in_port=2,nw_dst=30.0.0.1 actions=mod_nw_dst:10.0.0.1,mod_nw_src:10.0.0.3,LOCAL
 212  ip,in_port=LOCAL actions=output:2
 213  ip,in_port=2,nw_dst=10.0.0.2 actions=mod_nw_dst:20.0.0.2,mod_nw_src:20.0.0.1,LOCAL
 214  ip,in_port=2,nw_dst=30.0.0.2 actions=mod_nw_dst:20.0.0.2,mod_nw_src:20.0.0.3,LOCAL
 215  ip,in_port=LOCAL actions=output:2
 216  ip,in_port=2,nw_dst=10.0.0.3 actions=mod_nw_dst:30.0.0.3,mod_nw_src:30.0.0.1,LOCAL
 217  ip,in_port=2,nw_dst=20.0.0.3 actions=mod_nw_dst:30.0.0.3,mod_nw_src:30.0.0.2,LOCAL
 218  ip,in_port=LOCAL actions=output:2
 219 ])
 220
 221 ### Setup test ports for traffic injection
 222 N1_IP=192.168.10.10
 223 N2_IP=192.168.10.20
 224 N3_IP=192.168.10.30
 225 N1_MAC=aa:55:aa:55:00:01
 226 N2_MAC=aa:55:aa:55:00:02
 227 N3_MAC=aa:55:aa:55:00:03
 228 N1_OFPORT=10
 229 N2_OFPORT=20
 230 N3_OFPORT=30
 231
 232 ADD_NAMESPACES(ns1, ns2, ns3)
 233 ADD_VETH(n1, ns1, br-in1, "$N1_IP/24", $N1_MAC)
 234 ADD_VETH(n2, ns2, br-in2, "$N2_IP/24", $N2_MAC)
 235 ADD_VETH(n3, ns3, br-in3, "$N3_IP/24", $N3_MAC)
 236
 237 NS_EXEC([ns1], [arp -s $N2_IP $N2_MAC])
 238 NS_EXEC([ns1], [arp -s $N3_IP $N3_MAC])
 239
 240 NS_EXEC([ns2], [arp -s $N1_IP $N1_MAC])
 241 NS_EXEC([ns2], [arp -s $N3_IP $N3_MAC])
 242
 243 NS_EXEC([ns3], [arp -s $N2_IP $N2_MAC])
 244 NS_EXEC([ns3], [arp -s $N1_IP $N1_MAC])
 245
 246 AT_CHECK([
 247     ovs-vsctl set interface ovs-n1 ofport_request=$N1_OFPORT
 248     ovs-vsctl set interface ovs-n2 ofport_request=$N2_OFPORT
 249     ovs-vsctl set interface ovs-n3 ofport_request=$N3_OFPORT
 250 ], [0])
 251
 252 #N1_DPPORT=$(ovs-appctl dpif/show | grep "n1 10" | sed 's|.*/\([[0-9]]*\):.*|\1|')
 253 #N2_DPPORT=$(ovs-appctl dpif/show | grep "n2 20" | sed 's|.*/\([[0-9]]*\):.*|\1|')
 254 #N3_DPPORT=$(ovs-appctl dpif/show | grep "n3 30" | sed 's|.*/\([[0-9]]*\):.*|\1|')
 255
 256 ### Verify datapath configuration
 257 AT_CHECK([
 258     ovs-appctl dpif/show | grep -v hit
 259 ], [0], [dnl
 260   br-in1:
 261     br-in1 65534/2: (tap)
 262     gre12 1020/14: (gre: remote_ip=10.0.0.2)
 263     gre12_l3 1021/14: (gre: packet_type=legacy_l3, remote_ip=10.0.0.2)
 264     gre13 1030/14: (gre: remote_ip=10.0.0.3)
 265     ovs-n1 10/15: (system)
 266   br-in2:
 267     br-in2 65534/3: (tap)
 268     gre21 2010/14: (gre: packet_type=ptap, remote_ip=20.0.0.1)
 269     gre23 2030/14: (gre: packet_type=ptap, remote_ip=20.0.0.3)
 270     ovs-n2 20/16: (system)
 271   br-in3:
 272     br-in3 65534/4: (tap)
 273     gre31 3010/14: (gre: remote_ip=30.0.0.1)
 274     gre32 3020/14: (gre: remote_ip=30.0.0.2)
 275     gre32_l3 3021/14: (gre: packet_type=legacy_l3, remote_ip=30.0.0.2)
 276     ovs-n3 30/17: (system)
 277   br-p1:
 278     br-p1 65534/5: (tap)
 279     p1-0 2/8: (system)
 280   br-p2:
 281     br-p2 65534/6: (tap)
 282     p2-0 2/9: (system)
 283   br-p3:
 284     br-p3 65534/7: (tap)
 285     p3-0 2/10: (system)
 286   br0:
 287     br0 65534/1: (tap)
 288     p0-1 10/11: (system)
 289     p0-2 20/12: (system)
 290     p0-3 30/13: (system)
 291 ])
 292
 293 ### Test L3 forwarding flows
 294 AT_CHECK([
 295     ovs-ofctl add-flow br-in1 ip,nw_dst=$N1_IP,actions=mod_dl_dst:$N1_MAC,$N1_OFPORT # Local route to N1
 296     ovs-ofctl add-flow br-in1 ip,nw_dst=$N2_IP,actions=1020 # Route to N2 via the L2 tunnel to br-in2
 297     ovs-ofctl add-flow br-in1 ip,nw_dst=$N3_IP,actions=1030 # Route to N3 direct through L2 tunnel
 298
 299     ovs-ofctl add-flow br-in2 ip,nw_dst=$N2_IP,actions=mod_dl_dst:$N2_MAC,$N2_OFPORT # Local route to N2 for ethernet packets
 300     ovs-ofctl add-flow br-in2 ip,nw_dst=$N1_IP,actions=2010 # Route to N1 for ethernet packet
 301     ovs-ofctl add-flow br-in2 packet_type=\(1,0x800\),nw_dst=$N1_IP,actions=2010 # Route to N1 for IP packets
 302     ovs-ofctl add-flow br-in2 ip,nw_dst=$N3_IP,actions=2010 # Indirect route to N3 via br-in1 for ethernet packet
 303     ovs-ofctl add-flow br-in2 packet_type=\(1,0x800\),nw_dst=$N3_IP,actions=2030 # Direct route to N3 for IP packets
 304
 305     ovs-ofctl add-flow br-in3 ip,nw_dst=$N3_IP,actions=mod_dl_dst:$N3_MAC,$N3_OFPORT # Local route to N1
 306     ovs-ofctl add-flow br-in3 ip,nw_dst=$N2_IP,actions=3020 # Route to N2 via the L2 tunnel
 307     ovs-ofctl add-flow br-in3 ip,nw_dst=$N1_IP,actions=3021 # Route to N1 via br-in2 through L3 tunnel
 308 ], [0])
 309
 310 AT_CHECK([
 311     ovs-ofctl dump-flows br-in1 | ofctl_strip | strip_n_packets | strip_n_bytes | sort | grep actions
 312 ], [0], [dnl
 313  ip,nw_dst=192.168.10.10 actions=mod_dl_dst:aa:55:aa:55:00:01,output:10
 314  ip,nw_dst=192.168.10.20 actions=output:1020
 315  ip,nw_dst=192.168.10.30 actions=output:1030
 316 ])
 317
 318 AT_CHECK([
 319     ovs-ofctl dump-flows br-in2 | ofctl_strip | strip_n_packets | strip_n_bytes | sort | grep actions
 320 ], [0], [dnl
 321  ip,nw_dst=192.168.10.10 actions=output:2010
 322  ip,nw_dst=192.168.10.20 actions=mod_dl_dst:aa:55:aa:55:00:02,output:20
 323  ip,nw_dst=192.168.10.30 actions=output:2010
 324  packet_type=(1,0x800),nw_dst=192.168.10.10 actions=output:2010
 325  packet_type=(1,0x800),nw_dst=192.168.10.30 actions=output:2030
 326 ])
 327
 328 AT_CHECK([
 329     ovs-ofctl dump-flows br-in3 | ofctl_strip | strip_n_packets | strip_n_bytes | sort | grep actions
 330 ], [0], [dnl
 331  ip,nw_dst=192.168.10.10 actions=output:3021
 332  ip,nw_dst=192.168.10.20 actions=output:3020
 333  ip,nw_dst=192.168.10.30 actions=mod_dl_dst:aa:55:aa:55:00:03,output:30
 334 ])
 335
 336
 337 # Ping between N1 and N3, via the L2 GRE tunnel between br-in1 and br-in3
 338 NS_CHECK_EXEC([ns1], [ping -q -c 3 -i 0.3 -w 2 $N3_IP | FORMAT_PING], [0], [dnl
 339 3 packets transmitted, 3 received, 0% packet loss, time 0ms
 340 ])
 341
 342 sleep 1
 343
 344 AT_CHECK([
 345     ovs-ofctl dump-flows br-in1 | ofctl_strip | sort | grep n_packets
 346 ], [0], [dnl
 347  n_packets=3, n_bytes=252, ip,nw_dst=192.168.10.10 actions=mod_dl_dst:aa:55:aa:55:00:01,output:10
 348  n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.30 actions=output:1030
 349 ])
 350
 351 AT_CHECK([
 352     ovs-ofctl dump-flows br-in2 | ofctl_strip | sort | grep n_packets
 353 ], [0], [dnl
 354  n_packets=3, n_bytes=252, packet_type=(1,0x800),nw_dst=192.168.10.10 actions=output:2010
 355 ])
 356
 357 AT_CHECK([
 358     ovs-ofctl dump-flows br-in3 | ofctl_strip | sort | grep n_packets
 359 ], [0], [dnl
 360  n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.10 actions=output:3021
 361  n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.30 actions=mod_dl_dst:aa:55:aa:55:00:03,output:30
 362 ])
 363
 364
 365 # Ping between N1 and N2, via the L2 GRE tunnel between br-in1 and br-in2
 366 NS_CHECK_EXEC([ns1], [ping -q -c 3 -i 0.3 -w 2 $N2_IP | FORMAT_PING], [0], [dnl
 367 3 packets transmitted, 3 received, 0% packet loss, time 0ms
 368 ])
 369
 370 sleep 1
 371
 372 AT_CHECK([
 373     ovs-ofctl dump-flows br-in1 | ofctl_strip | sort | grep n_packets
 374 ], [0], [dnl
 375  n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.20 actions=output:1020
 376  n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.30 actions=output:1030
 377  n_packets=6, n_bytes=546, ip,nw_dst=192.168.10.10 actions=mod_dl_dst:aa:55:aa:55:00:01,output:10
 378 ])
 379
 380 AT_CHECK([
 381     ovs-ofctl dump-flows br-in2 | ofctl_strip | sort | grep n_packets
 382 ], [0], [dnl
 383  n_packets=3, n_bytes=252, packet_type=(1,0x800),nw_dst=192.168.10.10 actions=output:2010
 384  n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.10 actions=output:2010
 385  n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.20 actions=mod_dl_dst:aa:55:aa:55:00:02,output:20
 386 ])
 387
 388 AT_CHECK([
 389     ovs-ofctl dump-flows br-in3 | ofctl_strip | sort | grep n_packets
 390 ], [0], [dnl
 391  n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.10 actions=output:3021
 392  n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.30 actions=mod_dl_dst:aa:55:aa:55:00:03,output:30
 393 ])
 394
 395
 396 # Ping between N3 and N2, via the L3 GRE tunnel between br-in3 and br-in2
 397 NS_CHECK_EXEC([ns3], [ping -q -c 3 -i 0.3 -w 2 $N1_IP | FORMAT_PING], [0], [dnl
 398 3 packets transmitted, 3 received, 0% packet loss, time 0ms
 399 ])
 400
 401 sleep 1
 402
 403 AT_CHECK([
 404     ovs-ofctl dump-flows br-in1 | ofctl_strip | sort | grep n_packets
 405 ], [0], [dnl
 406  n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.20 actions=output:1020
 407  n_packets=6, n_bytes=588, ip,nw_dst=192.168.10.30 actions=output:1030
 408  n_packets=9, n_bytes=798, ip,nw_dst=192.168.10.10 actions=mod_dl_dst:aa:55:aa:55:00:01,output:10
 409 ])
 410
 411 AT_CHECK([
 412     ovs-ofctl dump-flows br-in2 | ofctl_strip | sort | grep n_packets
 413 ], [0], [dnl
 414  n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.10 actions=output:2010
 415  n_packets=3, n_bytes=294, ip,nw_dst=192.168.10.20 actions=mod_dl_dst:aa:55:aa:55:00:02,output:20
 416  n_packets=6, n_bytes=504, packet_type=(1,0x800),nw_dst=192.168.10.10 actions=output:2010
 417 ])
 418
 419 AT_CHECK([
 420     ovs-ofctl dump-flows br-in3 | ofctl_strip | sort | grep n_packets
 421 ], [0], [dnl
 422  n_packets=6, n_bytes=588, ip,nw_dst=192.168.10.10 actions=output:3021
 423  n_packets=6, n_bytes=588, ip,nw_dst=192.168.10.30 actions=mod_dl_dst:aa:55:aa:55:00:03,output:30
 424 ])
 425
 426
 427 OVS_TRAFFIC_VSWITCHD_STOP
 428 AT_CLEANUP