tests/bfd.at

   1 AT_BANNER([bfd])
   2
   3 m4_define([BFD_CHECK], [
   4 AT_CHECK([ovs-appctl bfd/show $1 | sed -e '/Time:/d' | sed -e '/Discriminator/d' | sed -e '/Interval:/d'| sed -e '/Multiplier/d'],[0],
   5 [dnl
   6   Forwarding: $2
   7   Concatenated Path Down: $3
   8
   9   Local Flags: $4
  10   Local Session State: $5
  11   Local Diagnostic: $6
  12
  13   Remote Flags: $7
  14   Remote Session State: $8
  15   Remote Diagnostic: $9
  16 ])
  17 ])
  18
  19 m4_define([BFD_CHECK_TX], [
  20 AT_CHECK([ovs-appctl bfd/show $1 | sed -n '/TX Interval/p'],[0],
  21 [dnl
  22   TX Interval: Approx $2
  23   Local Minimum TX Interval: $3
  24   Remote Minimum TX Interval: $4
  25 ])
  26 ])
  27
  28 m4_define([BFD_CHECK_RX], [
  29 AT_CHECK([ovs-appctl bfd/show $1 | sed -n '/RX Interval/p'],[0],
  30 [dnl
  31   RX Interval: Approx $2
  32   Local Minimum RX Interval: $3
  33   Remote Minimum RX Interval: $4
  34 ])
  35 ])
  36
  37 m4_define([BFD_VSCTL_LIST_IFACE], [
  38 AT_CHECK([ovs-vsctl list interface $1 | sed -n $2],[0],
  39 [dnl
  40 $3
  41 ])
  42 ])
  43
  44 m4_define([BFD_CHECK_MULT], [
  45 AT_CHECK([ovs-appctl bfd/show $1 | sed -n '/Detect Multiplier/p'],[0],
  46 [dnl
  47   Detect Multiplier: $2
  48   Remote Detect Multiplier: $3
  49 ])
  50 ])
  51
  52 AT_SETUP([bfd - basic config on different bridges])
  53 #Create 2 bridges connected by patch ports and enable BFD
  54 OVS_VSWITCHD_START(
  55    [add-br br1 -- \
  56        set bridge br1 datapath-type=dummy \
  57        other-config:hwaddr=aa:55:aa:56:00:00 -- \
  58     add-port br1 p1 -- set Interface p1 type=patch \
  59        options:peer=p0 -- \
  60     add-port br0 p0 -- set Interface p0 type=patch \
  61        options:peer=p1 -- \
  62     set Interface p0 bfd:enable=true -- \
  63     set Interface p1 bfd:enable=true ])
  64 ovs-appctl time/stop
  65 ovs-appctl time/warp 4100 100
  66
  67 #Verify that BFD has been enabled on both interfaces.
  68 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
  69 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
  70
  71 AT_CHECK([ ovs-vsctl set interface p0 bfd:enable=false])
  72 ovs-appctl time/warp 4100 100
  73 BFD_CHECK([p1], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
  74
  75 AT_CHECK([ ovs-vsctl set interface p0 bfd:enable=true])
  76 ovs-appctl time/warp 4100 100
  77 BFD_CHECK([p1], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [No Diagnostic])
  78 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [Control Detection Time Expired])
  79
  80 ovs-vsctl del-br br0
  81 AT_CHECK([ovs-appctl bfd/show p0], [2],[ignore], [no such bfd object
  82 ovs-appctl: ovs-vswitchd: server returned an error
  83 ])
  84 ovs-vsctl del-br br1
  85 #Check that the entries are gone.
  86 AT_CHECK([ovs-appctl bfd/show p1], [2],[ignore], [no such bfd object
  87 ovs-appctl: ovs-vswitchd: server returned an error
  88 ])
  89
  90 OVS_VSWITCHD_STOP
  91 AT_CLEANUP
  92
  93
  94 AT_SETUP([bfd - Verify tunnel down detection])
  95 #Create 3 bridges - br-bfd0, br-bfd1 and br-sw which is midway between the two. br-sw is
  96 #connected to br-bfd0 and br-bfd1 through patch ports p0-sw and p1-sw. Enable BFD on
  97 #interfaces in br-bfd0 and br-bfd1. When br-sw is dropping all packets, BFD should detect
  98 # that the tunnel is down, and come back up when br-sw is working fine.
  99
 100 OVS_VSWITCHD_START(
 101    [add-br br-bfd0 -- \
 102        set bridge br-bfd0 datapath-type=dummy \
 103        other-config:hwaddr=aa:55:aa:56:00:00 -- \
 104     add-br br-bfd1 -- \
 105        set bridge br-bfd1 datapath-type=dummy \
 106        other-config:hwaddr=aa:55:aa:57:00:00 -- \
 107     add-br br-sw -- \
 108        set bridge br-sw datapath-type=dummy \
 109        other-config:hwaddr=aa:55:aa:58:00:00 -- \
 110     add-port br-sw p1-sw -- set Interface p1-sw type=patch \
 111        options:peer=p1 ofport_request=2 -- \
 112     add-port br-sw p0-sw -- set Interface p0-sw type=patch \
 113        options:peer=p0 ofport_request=1 -- \
 114     add-port br-bfd1 p1 -- set Interface p1 type=patch \
 115        options:peer=p1-sw bfd:enable=true -- \
 116     add-port br-bfd0 p0 -- set Interface p0 type=patch \
 117        options:peer=p0-sw bfd:enable=true --])
 118
 119 ovs-appctl time/stop
 120
 121 #Create 2 bridges connected by patch ports and enable BFD
 122
 123 AT_CHECK([ovs-ofctl add-flow br-sw 'priority=0,actions=NORMAL'])
 124 #Verify that BFD is enabled.
 125 ovs-appctl time/warp 4100 100
 126 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 127 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 128
 129 #Drop all packets in the br-sw bridge so that the tunnel is down.
 130 AT_CHECK([ ovs-ofctl add-flow br-sw 'priority=5,actions=drop' ])
 131 ovs-appctl time/warp 4100 100
 132 BFD_CHECK([p1], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 133 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 134
 135 #Delete the added flow
 136 AT_CHECK([ovs-ofctl del-flows br-sw], [0])
 137 AT_CHECK([ovs-ofctl add-flow br-sw 'priority=0,actions=NORMAL'])
 138 #Verify that BFD is back up again.
 139 ovs-appctl time/warp 4100 100
 140
 141 BFD_CHECK([p1], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [Control Detection Time Expired])
 142 BFD_CHECK([p0], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [Control Detection Time Expired])
 143
 144 #Now, Verify one-side tunnel down detection
 145 #When br-sw is dropping packets from one end, BFD should detect
 146 # that the tunnel is down, and come back up when br-sw is working fine.
 147
 148 #Bring down the br-bfd1 - br-sw link. So BFD packets will be sent from p0,
 149 # but not received by p1. p0 will receive all BFD packets from p1.
 150
 151 AT_CHECK([ ovs-ofctl add-flow br-sw 'in_port=1,priority=5,actions=drop'])
 152 ovs-appctl time/warp 4100 100
 153 # Make sure p1 BFD state is down since it received no BFD packets.
 154 BFD_CHECK([p1], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 155 ovs-appctl time/warp 4100 100
 156
 157 # p0 will be in init state once it receives "down" BFD message from p1.
 158 BFD_CHECK([p0], [false], [false], [none], [init], [Neighbor Signaled Session Down], [none], [down], [Control Detection Time Expired])
 159
 160 AT_CHECK([ovs-ofctl del-flows br-sw])
 161 AT_CHECK([ovs-ofctl add-flow br-sw 'priority=0,actions=NORMAL'])
 162 #Ensure that BFD is back up again.
 163
 164 ovs-appctl time/warp 1100 100
 165 #Bring down the br-bfd0 - br-sw link
 166 AT_CHECK([ ovs-ofctl add-flow br-sw 'in_port=2,priority=5,actions=drop'])
 167 ovs-appctl time/warp 4100 100
 168 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 169 ovs-appctl time/warp 4100 100
 170 BFD_CHECK([p1], [false], [false], [none], [init], [Neighbor Signaled Session Down], [none], [down], [Control Detection Time Expired])
 171 OVS_VSWITCHD_STOP
 172 AT_CLEANUP
 173
 174
 175 AT_SETUP([bfd - concatenated path down])
 176 #Create 2 bridges connected by patch ports and enable BFD
 177 OVS_VSWITCHD_START()
 178 ovs-appctl time/stop
 179 AT_CHECK([ ovs-vsctl -- add-br br1 -- \
 180            set bridge br1 datapath-type=dummy \
 181            other-config:hwaddr=aa:55:aa:56:00:00 ])
 182 AT_CHECK([ ovs-vsctl -- add-port br1 p1 -- set Interface p1 type=patch \
 183            options:peer=p0 ])
 184 AT_CHECK([ ovs-vsctl -- add-port br0 p0 -- set Interface p0 type=patch \
 185            options:peer=p1 ])
 186 AT_CHECK([ ovs-vsctl -- set interface p0 bfd:enable=true ])
 187 AT_CHECK([ ovs-vsctl -- set interface p1 bfd:enable=true ])
 188 ovs-appctl time/warp 4100 100
 189
 190 #Verify that BFD has been enabled on both interfaces.
 191 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 192 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 193
 194 #Set cpath_down to true on one interface, make sure the remote interface updates its values.
 195 AT_CHECK([ovs-vsctl set interface p0 bfd:cpath_down=true])
 196 ovs-appctl time/warp 4100 100
 197 BFD_CHECK([p1], [false], [false], [none], [up], [No Diagnostic], [none], [up], [Concatenated Path Down])
 198 OVS_VSWITCHD_STOP
 199 AT_CLEANUP
 200
 201
 202 AT_SETUP([bfd - Edit the Min Tx/Rx values])
 203 #Create 2 bridges connected by patch ports and enable BFD
 204 OVS_VSWITCHD_START()
 205 ovs-appctl time/stop
 206 AT_CHECK([ ovs-vsctl -- add-br br1 -- \
 207            set bridge br1 datapath-type=dummy ])
 208 AT_CHECK([ ovs-vsctl -- add-port br1 p1 -- set Interface p1 type=patch \
 209            options:peer=p0 ])
 210 AT_CHECK([ ovs-vsctl -- add-port br0 p0 -- set Interface p0 type=patch \
 211            options:peer=p1 ])
 212 AT_CHECK([ ovs-vsctl -- set interface p0 bfd:enable=true ])
 213 AT_CHECK([ ovs-vsctl -- set interface p1 bfd:enable=true ])
 214 ovs-appctl time/warp 3100 100
 215 #Verify that BFD has been enabled on both interfaces.
 216 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 217 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 218 #Edit the min Tx value.
 219 AT_CHECK([ovs-vsctl set interface p0 bfd:min_tx=200])
 220 ovs-appctl time/warp 2100 100
 221 BFD_CHECK_TX([p0], [1000ms], [200ms], [100ms])
 222 BFD_CHECK_TX([p1], [1000ms], [100ms], [200ms])
 223
 224 #Edit the min Rx value.
 225 AT_CHECK([ovs-vsctl set interface p1 bfd:min_rx=300])
 226 ovs-appctl time/warp 2100 100
 227 BFD_CHECK_RX([p1], [300ms], [300ms], [1000ms])
 228 BFD_CHECK_RX([p0], [1000ms], [1000ms], [300ms])
 229
 230 OVS_VSWITCHD_STOP
 231 AT_CLEANUP
 232
 233 AT_SETUP([bfd - check_tnl_key])
 234 OVS_VSWITCHD_START([add-port br0 p1 -- set Interface p1 type=gre \
 235                     options:remote_ip=2.2.2.2 options:key=1 ofport_request=1 -- \
 236                     set interface p1 bfd:enable=true -- \
 237                     set bridge br0 fail-mode=standalone])
 238
 239 # by default check_tnl_key is false. so we should process a bfd packet with tun_id=1.
 240 AT_CHECK([ovs-appctl ofproto/trace --l7-len 0 ovs-dummy 'tunnel(tun_id=0x1,src=2.2.2.2,dst=2.2.2.1,tos=0x0,ttl=64,tp_src=0,tp_dst=0,flags(key)),in_port(1),skb_mark(0/0),eth(src=00:11:22:33:44:55,dst=00:23:20:00:00:01),eth_type(0x0800),ipv4(src=169.254.1.0/0.0.0.0,dst=169.254.1.1/0.0.0.0,proto=17/0xff,tos=0/0,ttl=255/0,frag=no),udp(src=49152/0,dst=3784/0xffff)' -generate], [0], [stdout])
 241 # check that the packet should be handled as BFD packet.
 242 AT_CHECK([tail -2 stdout], [0], [dnl
 243 This flow is handled by the userspace slow path because it:
 244   - Consists of BFD packets.
 245 ], [])
 246
 247 # turn on the check_tnl_key.
 248 AT_CHECK([ovs-vsctl set interface p1 bfd:check_tnl_key=true])
 249 AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'tunnel(tun_id=0x1,src=2.2.2.2,dst=2.2.2.1,tos=0x0,ttl=64,tp_src=0,tp_dst=0,flags(key)),in_port(1),skb_mark(0/0),eth(src=00:11:22:33:44:55,dst=00:23:20:00:00:01),eth_type(0x0800),ipv4(src=169.254.1.0/0.0.0.0,dst=169.254.1.1/0.0.0.0,proto=17/0xff,tos=0/0,ttl=255/0,frag=no),udp(src=49152/0,dst=3784/0xffff)' -generate], [0], [stdout])
 250 # check that the packet should be handled as normal packet.
 251 AT_CHECK([tail -1 stdout], [0],[dnl
 252 Datapath actions: 100
 253 ], [])
 254
 255 # set the tunnel key to 0.
 256 AT_CHECK([ovs-vsctl set interface p1 options:key=0])
 257 AT_CHECK([ovs-appctl ofproto/trace --l7-len 0 ovs-dummy 'tunnel(tun_id=0x0,src=2.2.2.2,dst=2.2.2.1,tos=0x0,ttl=64,tp_src=0,tp_dst=0,flags(key)),in_port(1),skb_mark(0/0),eth(src=00:11:22:33:44:55,dst=00:23:20:00:00:01),eth_type(0x0800),ipv4(src=169.254.1.0/0.0.0.0,dst=169.254.1.1/0.0.0.0,proto=17/0xff,tos=0/0,ttl=255/0,frag=no),udp(src=49152/0,dst=3784/0xffff)' -generate], [0], [stdout])
 258 # check that the packet should be handled as BFD packet.
 259 AT_CHECK([tail -2 stdout], [0], [dnl
 260 This flow is handled by the userspace slow path because it:
 261   - Consists of BFD packets.
 262 ], [])
 263
 264 OVS_VSWITCHD_STOP
 265 AT_CLEANUP
 266
 267 # Tests below are for bfd decay features.
 268 AT_SETUP([bfd - bfd decay])
 269 AT_SKIP_IF([test "$IS_ARM64" = "yes"])
 270 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
 271                     add-port br1 p1 -- set Interface p1 type=patch \
 272                     options:peer=p0 ofport_request=2 -- \
 273                     add-port br0 p0 -- set Interface p0 type=patch \
 274                     options:peer=p1 ofport_request=1 -- \
 275                     set Interface p0 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 -- \
 276                     set Interface p1 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500])
 277
 278 ovs-appctl time/stop
 279
 280 # wait for a while to stablize everything.
 281 ovs-appctl time/warp 10000 500
 282 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 283 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 284 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 285 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
 286
 287 # Test-1 BFD decay: decay to decay_min_rx
 288 AT_CHECK([ovs-vsctl set interface p0 bfd:decay_min_rx=3000])
 289 # bfd:decay_min_rx is set to 3000ms after the local state of p0 goes up,
 290 # so for the first 2000ms, there should be no change.
 291 ovs-appctl time/warp 2000 500
 292 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 293 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
 294
 295 # advance the clock by 5000ms.
 296 ovs-appctl time/warp 5000 500
 297 # now, min_rx should decay to 3000ms.
 298 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 299 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
 300
 301 # advance clock by 5000ms and check the flags are all 'none'.
 302 ovs-appctl time/warp 5000 500
 303 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 304 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 305 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 306 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
 307 # End of Test-1 ###############################################################
 308
 309
 310 # Test-2 BFD decay: go back to min_rx when there is traffic
 311 # receive packet at 1/100ms rate for 5000ms.
 312 for i in `seq 0 49`
 313 do
 314     ovs-appctl time/warp 100
 315     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 316              [0], [stdout], [])
 317 done
 318 # after a decay interval (3000ms), the p0 min_rx will go back to
 319 # min_rx.
 320 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 321 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
 322 # End of Test-2 ###############################################################
 323
 324
 325 # Test-3 BFD decay: set decay_min_rx to 1000ms.
 326 # this should firstly reset the min_rx and then re-decay to 1000ms.
 327 AT_CHECK([ovs-vsctl set Interface p0 bfd:decay_min_rx=1000])
 328 # advance the clock by 10000ms, decay should have happened.
 329 ovs-appctl time/warp 10000 500
 330 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 331 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 332 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 333 BFD_CHECK_RX([p0], [1000ms], [1000ms], [500ms])
 334 # End of Test-3 ###############################################################
 335
 336
 337 # Test-4 BFD decay: set decay_min_rx to 0 to disable bfd decay.
 338 AT_CHECK([ovs-vsctl set Interface p0 bfd:decay_min_rx=0])
 339 # advance the clock by 5000ms.
 340 ovs-appctl time/warp 10000 500
 341 # min_rx is reset.
 342 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 343 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
 344
 345 for i in `seq 0 20`
 346 do
 347     ovs-appctl time/warp 500
 348     BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 349     BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 350     BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 351     BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
 352 done
 353 # End of Test-4 ################################################################
 354
 355
 356 # Test-5 BFD decay: rmt_min_tx is greater than decay_min_rx
 357 AT_CHECK([ovs-vsctl set Interface p0 bfd:decay_min_rx=3000 -- set interface p1 bfd:min_tx=5000])
 358 # advance the clock by 10000ms to stable everything.
 359 ovs-appctl time/warp 10000 500
 360 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 361 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 362 # p0 rx should show 5000ms even if it is in decay.
 363 BFD_CHECK_TX([p0], [500ms], [300ms], [5000ms])
 364 BFD_CHECK_RX([p0], [5000ms], [3000ms], [500ms])
 365 # then, there should be no change of status,
 366 for i in `seq 0 19`
 367 do
 368     ovs-appctl time/warp 500
 369     BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 370     BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 371     BFD_CHECK_TX([p0], [500ms], [300ms], [5000ms])
 372     BFD_CHECK_RX([p0], [5000ms], [3000ms], [500ms])
 373 done
 374 # reset the p1's min_tx to 500ms.
 375 AT_CHECK([ovs-vsctl set Interface p1 bfd:min_tx=500])
 376 # advance the clock by 20000ms to stable everything.
 377 # since p0 has been in decay, now the RX will show 3000ms.
 378 ovs-appctl time/warp 20000 500
 379 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 380 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
 381 # End of Test-5 ###############################################################
 382
 383
 384 # Test-6 BFD decay: state up->down->up.
 385 # turn bfd off on p1
 386 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false])
 387
 388 # advance the clock by 15000ms to stable everything.
 389 ovs-appctl time/warp 15000 1000
 390 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 391 BFD_CHECK_TX([p0], [1000ms], [1000ms], [0ms])
 392 BFD_CHECK_RX([p0], [300ms], [300ms], [1ms])
 393
 394 # resume the bfd on p1. the bfd should not go to decay mode direclty.
 395 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=true])
 396 ovs-appctl time/warp 1500 500
 397 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 398 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
 399
 400 # since the decay_min_rx is still 3000ms, so after 5000ms, p0 should have decayed.
 401 ovs-appctl time/warp 5000 500
 402 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 403 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
 404 # End of Test-6 ################################################################
 405
 406 OVS_VSWITCHD_STOP
 407 AT_CLEANUP
 408
 409 # Tests below are for bfd forwarding_if_rx feature.
 410
 411 # forwarding_if_rx Test1
 412 # Test1 tests the case when bfd is only enabled on one end of the link.
 413 # Under this situation, the forwarding flag should always be false, even
 414 # though there is data packet received, since there is no bfd control
 415 # packet received during the demand_rx_bfd interval.
 416 AT_SETUP([bfd - bfd forwarding_if_rx - bfd on one side])
 417 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
 418                     add-port br1 p1 -- set Interface p1 type=patch \
 419                     options:peer=p0 ofport_request=2 -- \
 420                     add-port br0 p0 -- set Interface p0 type=patch \
 421                     options:peer=p1 ofport_request=1 -- \
 422                     set Interface p0 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500 -- \
 423                     add-port br1 p2 -- set Interface p2 type=internal ofport_request=3])
 424
 425 ovs-appctl time/stop
 426 # check the inital status.
 427 BFD_CHECK([p0], [false], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
 428 BFD_CHECK_TX([p0], [1000ms], [1000ms], [0ms])
 429 BFD_CHECK_RX([p0], [500ms], [500ms], [1ms])
 430
 431 # enable forwarding_if_rx.
 432 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
 433
 434 # there should be no change of forwarding flag, since
 435 # there is no traffic.
 436 for i in `seq 0 3`
 437 do
 438     ovs-appctl time/warp 500
 439     BFD_CHECK([p0], [false], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
 440 done
 441
 442 # receive packet at 1/100ms rate for 2000ms.
 443 for i in `seq 0 19`
 444 do
 445     ovs-appctl time/warp 100
 446     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 447              [0], [stdout], [])
 448 done
 449 # the forwarding flag should be false, due to the demand_rx_bfd.
 450 BFD_CHECK([p0], [false], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
 451
 452 AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
 453 OVS_VSWITCHD_STOP
 454 AT_CLEANUP
 455
 456
 457 # forwarding_if_rx Test2
 458 # Test2 is for testing that the enable of forwarding_if_rx will not
 459 # affect the normal bfd communication.  bfd is enabled on both ends of
 460 # the link.
 461 AT_SETUP([bfd - bfd forwarding_if_rx - bfd on both sides])
 462 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
 463                     add-port br1 p1 -- set Interface p1 type=patch \
 464                     options:peer=p0 ofport_request=2 -- \
 465                     add-port br0 p0 -- set Interface p0 type=patch \
 466                     options:peer=p1 ofport_request=1 -- \
 467                     set Interface p0 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500 -- \
 468                     set Interface p1 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 -- \
 469                     add-port br1 p2 -- set Interface p2 type=internal ofport_request=3])
 470
 471 ovs-appctl time/stop
 472 # advance the clock, to stablize the states.
 473 ovs-appctl time/warp 5000 500
 474
 475 # enable forwarding_if_rx.
 476 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
 477
 478 # there should be no change of the forwarding flag, since
 479 # the bfd on both ends is already up.
 480 for i in `seq 0 5`
 481 do
 482     ovs-appctl time/warp 500
 483     BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 484 done
 485
 486 # stop the bfd on one side.
 487 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
 488 # for within 1500ms, the detection timer is not out.
 489 # there is no change to status.
 490 for i in `seq 0 1`
 491 do
 492     ovs-appctl time/warp 500
 493     BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 494     for i in `seq 0 4`
 495     do
 496         AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 497                  [0], [stdout], [])
 498     done
 499 done
 500
 501 # at 1500ms, the STATE should go DOWN, due to Control Detection Time Expired.
 502 # but forwarding flag should be still true.
 503 ovs-appctl time/warp 500
 504 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 505
 506 # reset bfd forwarding_if_rx.
 507 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=false], [0])
 508 # forwarding flag should turn to false since the STATE is DOWN.
 509 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 510
 511 # re-enable bfd on the other end. the states should be up.
 512 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300])
 513 # advance the clock, to stablize the states.
 514 ovs-appctl time/warp 5000 500
 515 BFD_CHECK([p0], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [No Diagnostic])
 516 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [Control Detection Time Expired])
 517 BFD_CHECK_TX([p0], [500ms], [500ms], [300ms])
 518 BFD_CHECK_RX([p0], [500ms], [500ms], [300ms])
 519
 520 AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
 521 OVS_VSWITCHD_STOP
 522 AT_CLEANUP
 523
 524 # forwarding_if_rx Test3
 525 # Test3 is for testing that the enable of forwarding_if_rx will not
 526 # affect the bfd decay feature.  bfd is enabled on both ends of the link.
 527 AT_SETUP([bfd - bfd forwarding_if_rx - with bfd decay])
 528 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
 529                     add-port br1 p1 -- set Interface p1 type=patch \
 530                     options:peer=p0 ofport_request=2 -- \
 531                     add-port br0 p0 -- set Interface p0 type=patch \
 532                     options:peer=p1 ofport_request=1 -- \
 533                     set Interface p0 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 bfd:decay_min_rx=3000 -- \
 534                     set Interface p1 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500])
 535
 536 ovs-appctl time/stop
 537 # advance the clock, to stablize the states.
 538 ovs-appctl time/warp 10000 500
 539 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 540 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 541 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 542 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
 543
 544 # enable forwarding_if_rx.
 545 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
 546
 547 # there should be no change of the forwarding flag, since
 548 # the bfd on both ends is already up.
 549 for i in `seq 0 9`
 550 do
 551     ovs-appctl time/warp 500
 552     BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 553 done
 554
 555 # reconfigure the decay_min_rx to 1000ms.
 556 AT_CHECK([ovs-vsctl set interface p0 bfd:decay_min_rx=1000])
 557
 558 # wait for 5000ms to decay.
 559 ovs-appctl time/warp 5000 500
 560 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 561 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 562 BFD_CHECK_RX([p0], [1000ms], [1000ms], [500ms])
 563
 564 # stop the bfd on one side.
 565 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
 566
 567 # advance clock by 4000ms, while receiving packets.
 568 # the STATE should go DOWN, due to Control Detection Time Expired.
 569 # but forwarding flag should be still true.
 570 for i in `seq 0 7`
 571 do
 572     ovs-appctl time/warp 500
 573     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 574              [0], [stdout], [])
 575 done
 576 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 577
 578 # receive packet at 1/100ms rate for 1000ms.
 579 for i in `seq 0 9`
 580 do
 581     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 582              [0], [stdout], [])
 583     ovs-appctl time/warp 100
 584     # the forwarding flag should always be true during this time.
 585     BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 586 done
 587
 588 # stop receiving for 5000ms.
 589 ovs-appctl time/warp 5000 100
 590 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 591
 592 # reset bfd forwarding_if_rx.
 593 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=false])
 594 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 595 # re-enable bfd forwarding_if_rx.
 596 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true])
 597 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 598
 599 # re-enable bfd on the other end. the states should be up.
 600 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300])
 601 # advance the clock, to stablize the states.
 602 ovs-appctl time/warp 10000 500
 603 BFD_CHECK([p0], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [No Diagnostic])
 604 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [Control Detection Time Expired])
 605 BFD_CHECK_TX([p0], [300ms], [300ms], [300ms])
 606 BFD_CHECK_RX([p0], [1000ms], [1000ms], [300ms])
 607
 608 AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
 609 OVS_VSWITCHD_STOP
 610 AT_CLEANUP
 611
 612 # forwarding_if_rx Test4
 613 # Test4 is for testing the demand_rx_bfd feature.
 614 # bfd is enabled on both ends of the link.
 615 AT_SETUP([bfd - bfd forwarding_if_rx - demand_rx_bfd])
 616 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
 617                     add-port br1 p1 -- set Interface p1 type=patch \
 618                     options:peer=p0 ofport_request=2 -- \
 619                     add-port br0 p0 -- set Interface p0 type=patch \
 620                     options:peer=p1 ofport_request=1 -- \
 621                     set Interface p0 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 bfd:forwarding_if_rx=true -- \
 622                     set Interface p1 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500])
 623
 624 ovs-appctl time/stop
 625 # advance the clock, to stablize the states.
 626 ovs-appctl time/warp 10000 500
 627 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 628 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 629 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 630
 631 # disable the bfd on p1.
 632 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
 633
 634 # advance clock by 4000ms, while receiving packets.
 635 # the STATE should go DOWN, due to Control Detection Time Expired.
 636 # but forwarding flag should be still true.
 637 for i in `seq 0 7`
 638 do
 639     ovs-appctl time/warp 500
 640     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 641              [0], [stdout], [])
 642 done
 643 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 644
 645 # advance clock long enough to trigger the demand_bfd_rx interval
 646 # (100 * bfd->cfm_min_rx), forwarding flag should go down since there
 647 # is no bfd control packet received during the demand_rx_bfd.
 648 for i in `seq 0 120`
 649 do
 650     ovs-appctl time/warp 300
 651     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 652              [0], [stdout], [])
 653 done
 654 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 655
 656 # now enable the bfd on p1 again.
 657 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=true], [0])
 658 # advance clock by 5000ms.  and p1 and p0 should be all up.
 659 ovs-appctl time/warp 5000 500
 660 BFD_CHECK([p0], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [No Diagnostic])
 661 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [Control Detection Time Expired])
 662 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 663
 664 # disable the bfd on p1 again.
 665 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
 666 # advance clock long enough to trigger the demand_rx_bfd,
 667 # forwarding flag should go down since there is no bfd control packet
 668 # received during the demand_rx_bfd.
 669 for i in `seq 0 120`
 670 do
 671     ovs-appctl time/warp 300
 672     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 673              [0], [stdout], [])
 674 done
 675 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 676
 677 AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
 678 OVS_VSWITCHD_STOP
 679 AT_CLEANUP
 680
 681 # test bfd:flap_count.
 682 # This test contains three part:
 683 # part 1. tests the flap_count on normal bfd monitored link.
 684 # part 2. tests the flap_count when forwarding override is used.
 685 # part 3. tests the flap_count when forwarding_if_rx is enabled.
 686 AT_SETUP([bfd - flap_count])
 687 #Create 2 bridges connected by patch ports and enable bfd
 688 OVS_VSWITCHD_START([add-br br1 -- \
 689                     set bridge br1 datapath-type=dummy \
 690                     other-config:hwaddr=aa:55:aa:56:00:00 -- \
 691                     add-port br1 p1 -- set Interface p1 type=patch \
 692                     options:peer=p0 ofport_request=2 -- \
 693                     add-port br0 p0 -- set Interface p0 type=patch \
 694                     options:peer=p1 ofport_request=1 -- \
 695                     set Interface p0 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100 -- \
 696                     set Interface p1 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100])
 697
 698 ovs-appctl time/stop
 699 # Disable the stats update to prevent the race between ovsdb updating
 700 # stats and ovs-vsctl cmd closing the jsonrpc session.
 701 AT_CHECK([ovs-vsctl set Open_vSwitch . other_config:stats-update-interval=50000000])
 702
 703 # Part-1 wait for a while to stablize bfd.
 704 ovs-appctl time/warp 10100 100
 705 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 706 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 707 BFD_CHECK_TX([p0], [100ms], [100ms], [100ms])
 708 BFD_CHECK_RX([p0], [100ms], [100ms], [100ms])
 709 # both p0 and p1 should have flap_count = "1". since down->up.
 710 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 711 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 712
 713 # turn bfd on p1 off, should increment the bfd:flap_count on p0.
 714 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
 715 ovs-appctl time/warp 5000 100
 716 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 717 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["2"])
 718 AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
 719
 720 # turn bfd on p1 on again, should increment the bfd:flap_count on p0.
 721 # p1 should still have flap_count = "1", since it is reset.
 722 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
 723 ovs-appctl time/warp 5000 100
 724 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
 725 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 726
 727
 728 # Part-2 now turn on the forwarding_override.
 729 AT_CHECK([ovs-appctl bfd/set-forwarding p0 true], [0], [dnl
 730 OK
 731 ])
 732
 733 # turn bfd on p1 off, should not increment the bfd:flap_count on p0, since forwarding_override is on.
 734 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
 735 ovs-appctl time/warp 5000 100
 736 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 737 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
 738 AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
 739
 740 # turn bfd on p1 on again, should not increment the bfd:flap_count on p0, since forwarding override is on.
 741 # p1 should still have flap_count = "1", since it is reset.
 742 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
 743 ovs-appctl time/warp 5000 100
 744 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
 745 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 746
 747 # turn the forwarding_override back to normal.
 748 AT_CHECK([ovs-appctl bfd/set-forwarding p0 normal], [0], [dnl
 749 OK
 750 ])
 751
 752 # turn bfd on p1 off and on, should increment the bfd:flap_count on p0.
 753 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
 754 ovs-appctl time/warp 5000 100
 755 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
 756 ovs-appctl time/warp 5000 100
 757 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["5"])
 758 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 759
 760 # Part-3 now turn on forwarding_if_rx.
 761 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
 762 ovs-appctl time/warp 1100 100
 763 # disable the bfd on p1.
 764 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
 765
 766 # advance clock by 4000ms, while receiving packets.
 767 # the STATE should go DOWN, due to Control Detection Time Expired.
 768 # but forwarding flag should be true.
 769 for i in `seq 0 39`
 770 do
 771     ovs-appctl time/warp 100
 772     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 773              [0], [stdout], [])
 774 done
 775 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 776 # flap_count should remain unchanged.
 777 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["5"])
 778
 779 # stop the traffic for more than 100 * bfd->cfm_min_rx ms, the forwarding flag of p0 should turn false.
 780 # and there should be the increment of flap_count.
 781 ovs-appctl time/warp 12100 100
 782 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 783 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["6"])
 784
 785 # advance clock by 4000ms, and resume the traffic.
 786 for i in `seq 0 39`
 787 do
 788     ovs-appctl time/warp 100
 789     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 790              [0], [stdout], [])
 791 done
 792 # forwarding should be false, since there is still no bfd control packet received.
 793 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 794 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["6"])
 795
 796 # turn on the bfd on p1.
 797 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
 798 ovs-appctl time/warp 5000 100
 799 # even though there is no data traffic, since p1 bfd is on again, should increment the flap_count.
 800 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["7"])
 801 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 802
 803 OVS_VSWITCHD_STOP
 804 AT_CLEANUP
 805
 806 AT_SETUP([bfd - check that BFD works together with RSTP])
 807 # Create br0 with interfaces p1
 808 #    and br1 with interfaces p2
 809 # with p1 and p2 connected via unix domain socket
 810 OVS_VSWITCHD_START(
 811   [set bridge br0 rstp_enable=true -- \
 812    add-br br1 -- \
 813    set bridge br1 other-config:hwaddr=aa:66:aa:66:00:00 -- \
 814    set bridge br1 datapath-type=dummy -- \
 815    set bridge br1 rstp_enable=true -- \
 816 ])
 817
 818 AT_CHECK([ovs-vsctl add-port br0 p1 -- \
 819    set interface p1 type=dummy options:pstream=punix:$OVS_RUNDIR/p0.sock bfd:enable=true -- \
 820 ])
 821
 822 AT_CHECK([ovs-vsctl add-port br1 p2 -- \
 823    set interface p2 type=dummy options:stream=unix:$OVS_RUNDIR/p0.sock bfd:enable=true -- \
 824 ])
 825
 826 ovs-appctl time/stop
 827 ovs-appctl time/warp 4100 100
 828
 829 # Forwarding should be true
 830 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 831 BFD_CHECK([p2], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 832
 833 # Disable bfd on p2, forwarding on p1 should go to false
 834 AT_CHECK([ovs-vsctl set interface p2 bfd:enable=false])
 835
 836 ovs-appctl time/warp 5000 100
 837 BFD_CHECK([p1], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 838
 839 OVS_VSWITCHD_STOP
 840 AT_CLEANUP
 841
 842 # test bfd: liveness propagation - OF1.3.
 843 AT_SETUP([bfd - liveness propagation - OF1.3])
 844 OVS_VSWITCHD_START
 845 AT_CHECK([ovs-ofctl -O OpenFlow13 -P standard monitor br0 --detach --no-chdir --pidfile])
 846 check_liveness () {
 847     printf '\n\n--- check_liveness %d ---\n\n\n' $1
 848     shift
 849
 850         echo >>expout "OFPT_PORT_STATUS (OF1.3): MOD: 1(p0): addr:
 851      config:     0
 852      state:      $1
 853      speed: 0 Mbps now, 0 Mbps max"
 854
 855         AT_CHECK(
 856       [[sed '
 857 s/ (xid=0x[0-9a-fA-F]*)//
 858 s/ *duration.*//
 859 s/addr:[0-9a-fA-F:]*/addr:/' < monitor.log|grep -A3 "MOD: 1(p0)"|grep -ve --]],
 860       [0], [expout])
 861 }
 862 : > expout
 863 ovs-appctl -t ovs-ofctl ofctl/barrier
 864 ovs-appctl -t ovs-ofctl ofctl/set-output-file monitor.log
 865 # Set miss_send_len to 128, enabling port_status messages to our service connection.
 866 ovs-appctl -t ovs-ofctl ofctl/send 0409000c0123456700000080
 867 #Create 2 bridges connected by patch ports and enable bfd
 868 AT_CHECK([ovs-vsctl add-br br1 -- \
 869           set bridge br1 datapath-type=dummy \
 870           other-config:hwaddr=aa:55:aa:56:00:00 -- \
 871           add-port br1 p1 -- set Interface p1 type=patch \
 872           options:peer=p0 ofport_request=2 -- \
 873           add-port br0 p0 -- set Interface p0 type=patch \
 874           options:peer=p1 ofport_request=1 -- \
 875           set Interface p0 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100 -- \
 876           set Interface p1 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100])
 877
 878 ovs-appctl time/stop
 879 # Disable the stats update to prevent the race between ovsdb updating
 880 # stats and ovs-vsctl cmd closing the jsonrpc session.
 881 AT_CHECK([ovs-vsctl set Open_vSwitch . other_config:stats-update-interval=50000000])
 882
 883 # wait for a while to stablize bfd.
 884 ovs-appctl time/warp 10100 100
 885 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 886 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 887 BFD_CHECK_TX([p0], [100ms], [100ms], [100ms])
 888 BFD_CHECK_RX([p0], [100ms], [100ms], [100ms])
 889 # both p0 and p1 should have flap_count = "1". since down->up.
 890 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 891 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 892 check_liveness 1 LIVE
 893
 894 # turn bfd on p1 off, should increment the bfd:flap_count on p0.
 895 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
 896 ovs-appctl time/warp 5000 100
 897 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 898 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["2"])
 899 AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
 900 check_liveness 2 0
 901
 902 # turn bfd on p1 on again, should increment the bfd:flap_count on p0.
 903 # p1 should still have flap_count = "1", since it is reset.
 904 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
 905 ovs-appctl time/warp 5000 100
 906 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
 907 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 908 check_liveness 3 LIVE
 909
 910 OVS_VSWITCHD_STOP
 911 AT_CLEANUP
 912
 913 # test bfd: liveness propagation - OF1.4.
 914 AT_SETUP([bfd - liveness propagation - OF1.4])
 915 OVS_VSWITCHD_START
 916 AT_CHECK([ovs-ofctl -O OpenFlow14 -P standard monitor br0 --detach --no-chdir --pidfile])
 917 check_liveness () {
 918     printf '\n\n--- check_liveness %d ---\n\n\n' $1
 919     shift
 920
 921         echo >>expout "OFPT_PORT_STATUS (OF1.4): MOD: 1(p0): addr:
 922      config:     0
 923      state:      $1
 924      speed: 0 Mbps now, 0 Mbps max"
 925
 926         AT_CHECK(
 927       [[sed '
 928 s/ (xid=0x[0-9a-fA-F]*)//
 929 s/ *duration.*//
 930 s/addr:[0-9a-fA-F:]*/addr:/' < monitor.log|grep -A3 "MOD: 1(p0)"|grep -ve --]],
 931       [0], [expout])
 932 }
 933 : > expout
 934 ovs-appctl -t ovs-ofctl ofctl/barrier
 935 ovs-appctl -t ovs-ofctl ofctl/set-output-file monitor.log
 936 # Set miss_send_len to 128, enabling port_status messages to our service connection.
 937 ovs-appctl -t ovs-ofctl ofctl/send 0509000c0123456700000080
 938 #Create 2 bridges connected by patch ports and enable bfd
 939 AT_CHECK([ovs-vsctl add-br br1 -- \
 940           set bridge br1 datapath-type=dummy \
 941           other-config:hwaddr=aa:55:aa:56:00:00 -- \
 942           add-port br1 p1 -- set Interface p1 type=patch \
 943           options:peer=p0 ofport_request=2 -- \
 944           add-port br0 p0 -- set Interface p0 type=patch \
 945           options:peer=p1 ofport_request=1 -- \
 946           set Interface p0 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100 -- \
 947           set Interface p1 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100])
 948
 949 ovs-appctl time/stop
 950 # Disable the stats update to prevent the race between ovsdb updating
 951 # stats and ovs-vsctl cmd closing the jsonrpc session.
 952 AT_CHECK([ovs-vsctl set Open_vSwitch . other_config:stats-update-interval=50000000])
 953
 954 # wait for a while to stablize bfd.
 955 ovs-appctl time/warp 10100 100
 956 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 957 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 958 BFD_CHECK_TX([p0], [100ms], [100ms], [100ms])
 959 BFD_CHECK_RX([p0], [100ms], [100ms], [100ms])
 960 # both p0 and p1 should have flap_count = "1". since down->up.
 961 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 962 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 963 check_liveness 1 LIVE
 964
 965 # turn bfd on p1 off, should increment the bfd:flap_count on p0.
 966 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
 967 ovs-appctl time/warp 5000 100
 968 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 969 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["2"])
 970 AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
 971 check_liveness 2 0
 972
 973 # turn bfd on p1 on again, should increment the bfd:flap_count on p0.
 974 # p1 should still have flap_count = "1", since it is reset.
 975 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
 976 ovs-appctl time/warp 5000 100
 977 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
 978 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 979 check_liveness 3 LIVE
 980
 981 OVS_VSWITCHD_STOP
 982 AT_CLEANUP
 983
 984 # test bfd: liveness propagation - OF1.5.
 985 AT_SETUP([bfd - liveness propagation - OF1.5])
 986 OVS_VSWITCHD_START
 987 AT_CHECK([ovs-ofctl -O OpenFlow15 -P standard monitor br0 --detach --no-chdir --pidfile])
 988 check_liveness () {
 989     printf '\n\n--- check_liveness %d ---\n\n\n' $1
 990     shift
 991
 992         echo >>expout "OFPT_PORT_STATUS (OF1.5): MOD: 1(p0): addr:
 993      config:     0
 994      state:      $1
 995      speed: 0 Mbps now, 0 Mbps max"
 996
 997         AT_CHECK(
 998       [[sed '
 999 s/ (xid=0x[0-9a-fA-F]*)//
1000 s/ *duration.*//
1001 s/addr:[0-9a-fA-F:]*/addr:/' < monitor.log|grep -A3 "MOD: 1(p0)"|grep -ve --]],
1002       [0], [expout])
1003 }
1004 : > expout
1005 ovs-appctl -t ovs-ofctl ofctl/barrier
1006 ovs-appctl -t ovs-ofctl ofctl/set-output-file monitor.log
1007 # Set miss_send_len to 128, enabling port_status messages to our service connection.
1008 ovs-appctl -t ovs-ofctl ofctl/send 0609000c0123456700000080
1009 #Create 2 bridges connected by patch ports and enable bfd
1010 AT_CHECK([ovs-vsctl add-br br1 -- \
1011           set bridge br1 datapath-type=dummy \
1012           other-config:hwaddr=aa:55:aa:56:00:00 -- \
1013           add-port br1 p1 -- set Interface p1 type=patch \
1014           options:peer=p0 ofport_request=2 -- \
1015           add-port br0 p0 -- set Interface p0 type=patch \
1016           options:peer=p1 ofport_request=1 -- \
1017           set Interface p0 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100 -- \
1018           set Interface p1 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100])
1019
1020 ovs-appctl time/stop
1021 # Disable the stats update to prevent the race between ovsdb updating
1022 # stats and ovs-vsctl cmd closing the jsonrpc session.
1023 AT_CHECK([ovs-vsctl set Open_vSwitch . other_config:stats-update-interval=50000000])
1024
1025 # wait for a while to stablize bfd.
1026 ovs-appctl time/warp 10100 100
1027 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
1028 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
1029 BFD_CHECK_TX([p0], [100ms], [100ms], [100ms])
1030 BFD_CHECK_RX([p0], [100ms], [100ms], [100ms])
1031 # both p0 and p1 should have flap_count = "1". since down->up.
1032 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
1033 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
1034 check_liveness 1 LIVE
1035
1036 # turn bfd on p1 off, should increment the bfd:flap_count on p0.
1037 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
1038 ovs-appctl time/warp 5000 100
1039 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
1040 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["2"])
1041 AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
1042 check_liveness 2 0
1043
1044 # turn bfd on p1 on again, should increment the bfd:flap_count on p0.
1045 # p1 should still have flap_count = "1", since it is reset.
1046 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
1047 ovs-appctl time/warp 5000 100
1048 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
1049 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
1050 check_liveness 3 LIVE
1051
1052 OVS_VSWITCHD_STOP
1053 AT_CLEANUP
1054
1055 AT_SETUP([bfd - Edit the Detect Mult values])
1056 #Create 2 bridges connected by patch ports and enable BFD
1057 OVS_VSWITCHD_START()
1058 ovs-appctl time/stop
1059 AT_CHECK([ ovs-vsctl -- add-br br1 -- \
1060            set bridge br1 datapath-type=dummy ])
1061 AT_CHECK([ ovs-vsctl -- add-port br1 p1 -- set Interface p1 type=patch\
1062            options:peer=p0 ])
1063 AT_CHECK([ ovs-vsctl -- add-port br0 p0 -- set Interface p0 type=patch\
1064            options:peer=p1 ])
1065 AT_CHECK([ ovs-vsctl -- set interface p0 bfd:enable=true ])
1066 AT_CHECK([ ovs-vsctl -- set interface p1 bfd:enable=true ])
1067 ovs-appctl time/warp 3100 100
1068 #Verify that BFD has been enabled on both interfaces.
1069 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
1070 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
1071 #Verify that default mult values are 3.
1072 BFD_CHECK_MULT([p0], [3], [3])
1073 BFD_CHECK_MULT([p1], [3], [3])
1074 #Set the mult values to valid range border mult(p0)=1 mult(p1)=255.
1075 AT_CHECK([ovs-vsctl set interface p0 bfd:mult=1])
1076 AT_CHECK([ovs-vsctl set interface p1 bfd:mult=255])
1077 ovs-appctl time/warp 3100 100
1078 BFD_CHECK_MULT([p0], [1], [255])
1079 BFD_CHECK_MULT([p1], [255], [1])
1080
1081 #Set the mult values out valid range border mult(p0)=0 mult(p1)=256.
1082 AT_CHECK([ovs-vsctl set interface p0 bfd:mult=0])
1083 AT_CHECK([ovs-vsctl set interface p1 bfd:mult=256])
1084 ovs-appctl time/warp 3100 100
1085 BFD_CHECK_MULT([p0], [3], [3])
1086 BFD_CHECK_MULT([p1], [3], [3])
1087
1088 #Set valid non default mult values mult(p0)=8 mult(p1)=125.
1089 AT_CHECK([ovs-vsctl set interface p0 bfd:mult=8])
1090 AT_CHECK([ovs-vsctl set interface p1 bfd:mult=125])
1091 ovs-appctl time/warp 3100 100
1092 BFD_CHECK_MULT([p0], [8], [125])
1093 BFD_CHECK_MULT([p1], [125], [8])
1094
1095 #Clear mult values. Detect mult values shall be default 3 again.
1096 AT_CHECK([ovs-vsctl remove interface p0 bfd mult])
1097 AT_CHECK([ovs-vsctl remove interface p1 bfd mult])
1098 ovs-appctl time/warp 3100 100
1099 BFD_CHECK_MULT([p0], [3], [3])
1100 BFD_CHECK_MULT([p1], [3], [3])
1101
1102 OVS_VSWITCHD_STOP
1103 AT_CLEANUP
1104
1105 AT_SETUP([bfd - overlay])
1106 OVS_VSWITCHD_START([add-port br0 p1 -- set Interface p1 type=gre \
1107                     options:remote_ip=2.2.2.2 ofport_request=1 -- \
1108                     set interface p1 bfd:enable=true bfd:bfd_src_ip=2.2.2.1 -- \
1109                     set bridge br0 fail-mode=standalone])
1110
1111 # Userspace slow path handles normal BFD packets.
1112 AT_CHECK([ovs-appctl ofproto/trace --l7-len 0 ovs-dummy 'tunnel(tun_id=0x0,src=2.2.2.2,dst=2.2.2.1,tos=0x0,ttl=64,tp_src=0,tp_dst=0,flags()),in_port(1),skb_mark(0/0),eth(src=00:11:22:33:44:55,dst=00:23:20:00:00:01),eth_type(0x0800),ipv4(src=2.2.2.2/0.0.0.0,dst=2.2.2.1/0.0.0.0,proto=17/0xff,tos=0/0,ttl=255/0,frag=no),udp(src=49152/0,dst=3784/0xffff)' -generate], [0], [stdout])
1113 # check that the packet should be handled as BFD packet.
1114 AT_CHECK([tail -2 stdout], [0], [dnl
1115 This flow is handled by the userspace slow path because it:
1116   - Consists of BFD packets.
1117 ], [])
1118
1119 # Userspace slow path won't handle overlay BFD packets. Instead, other OVS flows, if configured, will handle them.
1120 AT_CHECK([ovs-appctl ofproto/trace --l7-len 0 ovs-dummy 'tunnel(tun_id=0x0,src=2.2.2.2,dst=2.2.2.1,tos=0x0,ttl=64,tp_src=0,tp_dst=0,flags()),in_port(1),skb_mark(0/0),eth(src=00:11:22:33:44:66,dst=00:23:20:00:00:77),eth_type(0x0800),ipv4(src=192.168.2.2/0.0.0.0,dst=192.168.2.1/0.0.0.0,proto=17/0xff,tos=0/0,ttl=255/0,frag=no),udp(src=49152/0,dst=3784/0xffff)' -generate], [0], [stdout])
1121 AT_CHECK([tail -10 stdout], [0], [dnl
1122 bridge("br0")
1123 -------------
1124  0. priority 0
1125     NORMAL
1126      -> learned that 00:11:22:33:44:66 is on port p1 in VLAN 0
1127      -> no learned MAC for destination, flooding
1128
1129 Final flow: unchanged
1130 Megaflow: recirc_id=0,eth,udp,tun_id=0,tun_src=2.2.2.2,tun_dst=2.2.2.1,tun_tos=0,tun_flags=-df-csum+key,in_port=1,dl_src=00:11:22:33:44:66,dl_dst=00:23:20:00:00:77,nw_frag=no,tp_dst=3784
1131 Datapath actions: 100
1132 ], [])
1133
1134 OVS_VSWITCHD_STOP
1135 AT_CLEANUP