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 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
 270                     add-port br1 p1 -- set Interface p1 type=patch \
 271                     options:peer=p0 ofport_request=2 -- \
 272                     add-port br0 p0 -- set Interface p0 type=patch \
 273                     options:peer=p1 ofport_request=1 -- \
 274                     set Interface p0 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 -- \
 275                     set Interface p1 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500])
 276
 277 ovs-appctl time/stop
 278
 279 # wait for a while to stablize everything.
 280 ovs-appctl time/warp 10000 500
 281 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 282 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 283 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 284 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
 285
 286 # Test-1 BFD decay: decay to decay_min_rx
 287 AT_CHECK([ovs-vsctl set interface p0 bfd:decay_min_rx=3000])
 288 # bfd:decay_min_rx is set to 3000ms after the local state of p0 goes up,
 289 # so for the first 2000ms, there should be no change.
 290 ovs-appctl time/warp 2000 500
 291 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 292 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
 293
 294 # advance the clock by 5000ms.
 295 ovs-appctl time/warp 5000 500
 296 # now, min_rx should decay to 3000ms.
 297 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 298 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
 299
 300 # advance clock by 5000ms and check the flags are all 'none'.
 301 ovs-appctl time/warp 5000 500
 302 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 303 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 304 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 305 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
 306 # End of Test-1 ###############################################################
 307
 308
 309 # Test-2 BFD decay: go back to min_rx when there is traffic
 310 # receive packet at 1/100ms rate for 5000ms.
 311 for i in `seq 0 49`
 312 do
 313     ovs-appctl time/warp 100
 314     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 315              [0], [stdout], [])
 316 done
 317 # after a decay interval (3000ms), the p0 min_rx will go back to
 318 # min_rx.
 319 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 320 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
 321 # End of Test-2 ###############################################################
 322
 323
 324 # Test-3 BFD decay: set decay_min_rx to 1000ms.
 325 # this should firstly reset the min_rx and then re-decay to 1000ms.
 326 AT_CHECK([ovs-vsctl set Interface p0 bfd:decay_min_rx=1000])
 327 # advance the clock by 10000ms, decay should have happened.
 328 ovs-appctl time/warp 10000 500
 329 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 330 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 331 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 332 BFD_CHECK_RX([p0], [1000ms], [1000ms], [500ms])
 333 # End of Test-3 ###############################################################
 334
 335
 336 # Test-4 BFD decay: set decay_min_rx to 0 to disable bfd decay.
 337 AT_CHECK([ovs-vsctl set Interface p0 bfd:decay_min_rx=0])
 338 # advance the clock by 5000ms.
 339 ovs-appctl time/warp 10000 500
 340 # min_rx is reset.
 341 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 342 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
 343
 344 for i in `seq 0 20`
 345 do
 346     ovs-appctl time/warp 500
 347     BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 348     BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 349     BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 350     BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
 351 done
 352 # End of Test-4 ################################################################
 353
 354
 355 # Test-5 BFD decay: rmt_min_tx is greater than decay_min_rx
 356 AT_CHECK([ovs-vsctl set Interface p0 bfd:decay_min_rx=3000 -- set interface p1 bfd:min_tx=5000])
 357 # advance the clock by 10000ms to stable everything.
 358 ovs-appctl time/warp 10000 500
 359 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 360 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 361 # p0 rx should show 5000ms even if it is in decay.
 362 BFD_CHECK_TX([p0], [500ms], [300ms], [5000ms])
 363 BFD_CHECK_RX([p0], [5000ms], [3000ms], [500ms])
 364 # then, there should be no change of status,
 365 for i in `seq 0 19`
 366 do
 367     ovs-appctl time/warp 500
 368     BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 369     BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 370     BFD_CHECK_TX([p0], [500ms], [300ms], [5000ms])
 371     BFD_CHECK_RX([p0], [5000ms], [3000ms], [500ms])
 372 done
 373 # reset the p1's min_tx to 500ms.
 374 AT_CHECK([ovs-vsctl set Interface p1 bfd:min_tx=500])
 375 # advance the clock by 20000ms to stable everything.
 376 # since p0 has been in decay, now the RX will show 3000ms.
 377 ovs-appctl time/warp 20000 500
 378 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 379 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
 380 # End of Test-5 ###############################################################
 381
 382
 383 # Test-6 BFD decay: state up->down->up.
 384 # turn bfd off on p1
 385 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false])
 386
 387 # advance the clock by 15000ms to stable everything.
 388 ovs-appctl time/warp 15000 1000
 389 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 390 BFD_CHECK_TX([p0], [1000ms], [1000ms], [0ms])
 391 BFD_CHECK_RX([p0], [300ms], [300ms], [1ms])
 392
 393 # resume the bfd on p1. the bfd should not go to decay mode direclty.
 394 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=true])
 395 ovs-appctl time/warp 1500 500
 396 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 397 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
 398
 399 # since the decay_min_rx is still 3000ms, so after 5000ms, p0 should have decayed.
 400 ovs-appctl time/warp 5000 500
 401 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 402 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
 403 # End of Test-6 ################################################################
 404
 405 OVS_VSWITCHD_STOP
 406 AT_CLEANUP
 407
 408 # Tests below are for bfd forwarding_if_rx feature.
 409
 410 # forwarding_if_rx Test1
 411 # Test1 tests the case when bfd is only enabled on one end of the link.
 412 # Under this situation, the forwarding flag should always be false, even
 413 # though there is data packet received, since there is no bfd control
 414 # packet received during the demand_rx_bfd interval.
 415 AT_SETUP([bfd - bfd forwarding_if_rx - bfd on one side])
 416 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
 417                     add-port br1 p1 -- set Interface p1 type=patch \
 418                     options:peer=p0 ofport_request=2 -- \
 419                     add-port br0 p0 -- set Interface p0 type=patch \
 420                     options:peer=p1 ofport_request=1 -- \
 421                     set Interface p0 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500 -- \
 422                     add-port br1 p2 -- set Interface p2 type=internal ofport_request=3])
 423
 424 ovs-appctl time/stop
 425 # check the inital status.
 426 BFD_CHECK([p0], [false], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
 427 BFD_CHECK_TX([p0], [1000ms], [1000ms], [0ms])
 428 BFD_CHECK_RX([p0], [500ms], [500ms], [1ms])
 429
 430 # enable forwarding_if_rx.
 431 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
 432
 433 # there should be no change of forwarding flag, since
 434 # there is no traffic.
 435 for i in `seq 0 3`
 436 do
 437     ovs-appctl time/warp 500
 438     BFD_CHECK([p0], [false], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
 439 done
 440
 441 # receive packet at 1/100ms rate for 2000ms.
 442 for i in `seq 0 19`
 443 do
 444     ovs-appctl time/warp 100
 445     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 446              [0], [stdout], [])
 447 done
 448 # the forwarding flag should be false, due to the demand_rx_bfd.
 449 BFD_CHECK([p0], [false], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
 450
 451 AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
 452 OVS_VSWITCHD_STOP
 453 AT_CLEANUP
 454
 455
 456 # forwarding_if_rx Test2
 457 # Test2 is for testing that the enable of forwarding_if_rx will not
 458 # affect the normal bfd communication.  bfd is enabled on both ends of
 459 # the link.
 460 AT_SETUP([bfd - bfd forwarding_if_rx - bfd on both sides])
 461 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
 462                     add-port br1 p1 -- set Interface p1 type=patch \
 463                     options:peer=p0 ofport_request=2 -- \
 464                     add-port br0 p0 -- set Interface p0 type=patch \
 465                     options:peer=p1 ofport_request=1 -- \
 466                     set Interface p0 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500 -- \
 467                     set Interface p1 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 -- \
 468                     add-port br1 p2 -- set Interface p2 type=internal ofport_request=3])
 469
 470 ovs-appctl time/stop
 471 # advance the clock, to stablize the states.
 472 ovs-appctl time/warp 5000 500
 473
 474 # enable forwarding_if_rx.
 475 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
 476
 477 # there should be no change of the forwarding flag, since
 478 # the bfd on both ends is already up.
 479 for i in `seq 0 5`
 480 do
 481     ovs-appctl time/warp 500
 482     BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 483 done
 484
 485 # stop the bfd on one side.
 486 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
 487 # for within 1500ms, the detection timer is not out.
 488 # there is no change to status.
 489 for i in `seq 0 1`
 490 do
 491     ovs-appctl time/warp 500
 492     BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 493     for i in `seq 0 4`
 494     do
 495         AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 496                  [0], [stdout], [])
 497     done
 498 done
 499
 500 # at 1500ms, the STATE should go DOWN, due to Control Detection Time Expired.
 501 # but forwarding flag should be still true.
 502 ovs-appctl time/warp 500
 503 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 504
 505 # reset bfd forwarding_if_rx.
 506 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=false], [0])
 507 # forwarding flag should turn to false since the STATE is DOWN.
 508 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 509
 510 # re-enable bfd on the other end. the states should be up.
 511 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300])
 512 # advance the clock, to stablize the states.
 513 ovs-appctl time/warp 5000 500
 514 BFD_CHECK([p0], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [No Diagnostic])
 515 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [Control Detection Time Expired])
 516 BFD_CHECK_TX([p0], [500ms], [500ms], [300ms])
 517 BFD_CHECK_RX([p0], [500ms], [500ms], [300ms])
 518
 519 AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
 520 OVS_VSWITCHD_STOP
 521 AT_CLEANUP
 522
 523 # forwarding_if_rx Test3
 524 # Test3 is for testing that the enable of forwarding_if_rx will not
 525 # affect the bfd decay feature.  bfd is enabled on both ends of the link.
 526 AT_SETUP([bfd - bfd forwarding_if_rx - with bfd decay])
 527 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
 528                     add-port br1 p1 -- set Interface p1 type=patch \
 529                     options:peer=p0 ofport_request=2 -- \
 530                     add-port br0 p0 -- set Interface p0 type=patch \
 531                     options:peer=p1 ofport_request=1 -- \
 532                     set Interface p0 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 bfd:decay_min_rx=3000 -- \
 533                     set Interface p1 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500])
 534
 535 ovs-appctl time/stop
 536 # advance the clock, to stablize the states.
 537 ovs-appctl time/warp 10000 500
 538 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 539 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 540 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 541 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
 542
 543 # enable forwarding_if_rx.
 544 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
 545
 546 # there should be no change of the forwarding flag, since
 547 # the bfd on both ends is already up.
 548 for i in `seq 0 9`
 549 do
 550     ovs-appctl time/warp 500
 551     BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 552 done
 553
 554 # reconfigure the decay_min_rx to 1000ms.
 555 AT_CHECK([ovs-vsctl set interface p0 bfd:decay_min_rx=1000])
 556
 557 # wait for 5000ms to decay.
 558 ovs-appctl time/warp 5000 500
 559 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 560 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 561 BFD_CHECK_RX([p0], [1000ms], [1000ms], [500ms])
 562
 563 # stop the bfd on one side.
 564 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
 565
 566 # advance clock by 4000ms, while receiving packets.
 567 # the STATE should go DOWN, due to Control Detection Time Expired.
 568 # but forwarding flag should be still true.
 569 for i in `seq 0 7`
 570 do
 571     ovs-appctl time/warp 500
 572     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 573              [0], [stdout], [])
 574 done
 575 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 576
 577 # receive packet at 1/100ms rate for 1000ms.
 578 for i in `seq 0 9`
 579 do
 580     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 581              [0], [stdout], [])
 582     ovs-appctl time/warp 100
 583     # the forwarding flag should always be true during this time.
 584     BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 585 done
 586
 587 # stop receiving for 5000ms.
 588 ovs-appctl time/warp 5000 100
 589 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 590
 591 # reset bfd forwarding_if_rx.
 592 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=false])
 593 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 594 # re-enable bfd forwarding_if_rx.
 595 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true])
 596 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 597
 598 # re-enable bfd on the other end. the states should be up.
 599 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300])
 600 # advance the clock, to stablize the states.
 601 ovs-appctl time/warp 10000 500
 602 BFD_CHECK([p0], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [No Diagnostic])
 603 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [Control Detection Time Expired])
 604 BFD_CHECK_TX([p0], [300ms], [300ms], [300ms])
 605 BFD_CHECK_RX([p0], [1000ms], [1000ms], [300ms])
 606
 607 AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
 608 OVS_VSWITCHD_STOP
 609 AT_CLEANUP
 610
 611 # forwarding_if_rx Test4
 612 # Test4 is for testing the demand_rx_bfd feature.
 613 # bfd is enabled on both ends of the link.
 614 AT_SETUP([bfd - bfd forwarding_if_rx - demand_rx_bfd])
 615 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
 616                     add-port br1 p1 -- set Interface p1 type=patch \
 617                     options:peer=p0 ofport_request=2 -- \
 618                     add-port br0 p0 -- set Interface p0 type=patch \
 619                     options:peer=p1 ofport_request=1 -- \
 620                     set Interface p0 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 bfd:forwarding_if_rx=true -- \
 621                     set Interface p1 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500])
 622
 623 ovs-appctl time/stop
 624 # advance the clock, to stablize the states.
 625 ovs-appctl time/warp 10000 500
 626 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 627 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 628 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 629
 630 # disable the bfd on p1.
 631 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
 632
 633 # advance clock by 4000ms, while receiving packets.
 634 # the STATE should go DOWN, due to Control Detection Time Expired.
 635 # but forwarding flag should be still true.
 636 for i in `seq 0 7`
 637 do
 638     ovs-appctl time/warp 500
 639     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 640              [0], [stdout], [])
 641 done
 642 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 643
 644 # advance clock long enough to trigger the demand_bfd_rx interval
 645 # (100 * bfd->cfm_min_rx), forwarding flag should go down since there
 646 # is no bfd control packet received during the demand_rx_bfd.
 647 for i in `seq 0 120`
 648 do
 649     ovs-appctl time/warp 300
 650     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 651              [0], [stdout], [])
 652 done
 653 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 654
 655 # now enable the bfd on p1 again.
 656 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=true], [0])
 657 # advance clock by 5000ms.  and p1 and p0 should be all up.
 658 ovs-appctl time/warp 5000 500
 659 BFD_CHECK([p0], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [No Diagnostic])
 660 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [Control Detection Time Expired])
 661 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
 662
 663 # disable the bfd on p1 again.
 664 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
 665 # advance clock long enough to trigger the demand_rx_bfd,
 666 # forwarding flag should go down since there is no bfd control packet
 667 # received during the demand_rx_bfd.
 668 for i in `seq 0 120`
 669 do
 670     ovs-appctl time/warp 300
 671     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 672              [0], [stdout], [])
 673 done
 674 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 675
 676 AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
 677 OVS_VSWITCHD_STOP
 678 AT_CLEANUP
 679
 680 # test bfd:flap_count.
 681 # This test contains three part:
 682 # part 1. tests the flap_count on normal bfd monitored link.
 683 # part 2. tests the flap_count when forwarding override is used.
 684 # part 3. tests the flap_count when forwarding_if_rx is enabled.
 685 AT_SETUP([bfd - flap_count])
 686 #Create 2 bridges connected by patch ports and enable bfd
 687 OVS_VSWITCHD_START([add-br br1 -- \
 688                     set bridge br1 datapath-type=dummy \
 689                     other-config:hwaddr=aa:55:aa:56:00:00 -- \
 690                     add-port br1 p1 -- set Interface p1 type=patch \
 691                     options:peer=p0 ofport_request=2 -- \
 692                     add-port br0 p0 -- set Interface p0 type=patch \
 693                     options:peer=p1 ofport_request=1 -- \
 694                     set Interface p0 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100 -- \
 695                     set Interface p1 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100])
 696
 697 ovs-appctl time/stop
 698 # Disable the stats update to prevent the race between ovsdb updating
 699 # stats and ovs-vsctl cmd closing the jsonrpc session.
 700 AT_CHECK([ovs-vsctl set Open_vSwitch . other_config:stats-update-interval=50000000])
 701
 702 # Part-1 wait for a while to stablize bfd.
 703 ovs-appctl time/warp 10100 100
 704 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 705 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 706 BFD_CHECK_TX([p0], [100ms], [100ms], [100ms])
 707 BFD_CHECK_RX([p0], [100ms], [100ms], [100ms])
 708 # both p0 and p1 should have flap_count = "1". since down->up.
 709 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 710 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 711
 712 # turn bfd on p1 off, should increment the bfd:flap_count on p0.
 713 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
 714 ovs-appctl time/warp 5000 100
 715 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 716 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["2"])
 717 AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
 718
 719 # turn bfd on p1 on again, should increment the bfd:flap_count on p0.
 720 # p1 should still have flap_count = "1", since it is reset.
 721 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
 722 ovs-appctl time/warp 5000 100
 723 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
 724 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 725
 726
 727 # Part-2 now turn on the forwarding_override.
 728 AT_CHECK([ovs-appctl bfd/set-forwarding p0 true], [0], [dnl
 729 OK
 730 ])
 731
 732 # turn bfd on p1 off, should not increment the bfd:flap_count on p0, since forwarding_override is on.
 733 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
 734 ovs-appctl time/warp 5000 100
 735 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 736 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
 737 AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
 738
 739 # turn bfd on p1 on again, should not increment the bfd:flap_count on p0, since forwarding override is on.
 740 # p1 should still have flap_count = "1", since it is reset.
 741 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
 742 ovs-appctl time/warp 5000 100
 743 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
 744 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 745
 746 # turn the forwarding_override back to normal.
 747 AT_CHECK([ovs-appctl bfd/set-forwarding p0 normal], [0], [dnl
 748 OK
 749 ])
 750
 751 # turn bfd on p1 off and on, should increment the bfd:flap_count on p0.
 752 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
 753 ovs-appctl time/warp 5000 100
 754 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
 755 ovs-appctl time/warp 5000 100
 756 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["5"])
 757 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 758
 759 # Part-3 now turn on forwarding_if_rx.
 760 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
 761 ovs-appctl time/warp 1100 100
 762 # disable the bfd on p1.
 763 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
 764
 765 # advance clock by 4000ms, while receiving packets.
 766 # the STATE should go DOWN, due to Control Detection Time Expired.
 767 # but forwarding flag should be true.
 768 for i in `seq 0 39`
 769 do
 770     ovs-appctl time/warp 100
 771     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 772              [0], [stdout], [])
 773 done
 774 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 775 # flap_count should remain unchanged.
 776 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["5"])
 777
 778 # stop the traffic for more than 100 * bfd->cfm_min_rx ms, the forwarding flag of p0 should turn false.
 779 # and there should be the increment of flap_count.
 780 ovs-appctl time/warp 12100 100
 781 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 782 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["6"])
 783
 784 # advance clock by 4000ms, and resume the traffic.
 785 for i in `seq 0 39`
 786 do
 787     ovs-appctl time/warp 100
 788     AT_CHECK([ovs-ofctl packet-out br1 "in_port=3 packet=90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202 actions=2"],
 789              [0], [stdout], [])
 790 done
 791 # forwarding should be false, since there is still no bfd control packet received.
 792 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 793 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["6"])
 794
 795 # turn on the bfd on p1.
 796 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
 797 ovs-appctl time/warp 5000 100
 798 # even though there is no data traffic, since p1 bfd is on again, should increment the flap_count.
 799 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["7"])
 800 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 801
 802 OVS_VSWITCHD_STOP
 803 AT_CLEANUP
 804
 805 AT_SETUP([bfd - check that BFD works together with RSTP])
 806 # Create br0 with interfaces p1
 807 #    and br1 with interfaces p2
 808 # with p1 and p2 connected via unix domain socket
 809 OVS_VSWITCHD_START(
 810   [set bridge br0 rstp_enable=true -- \
 811    add-br br1 -- \
 812    set bridge br1 other-config:hwaddr=aa:66:aa:66:00:00 -- \
 813    set bridge br1 datapath-type=dummy -- \
 814    set bridge br1 rstp_enable=true -- \
 815 ])
 816
 817 AT_CHECK([ovs-vsctl add-port br0 p1 -- \
 818    set interface p1 type=dummy options:pstream=punix:$OVS_RUNDIR/p0.sock bfd:enable=true -- \
 819 ])
 820
 821 AT_CHECK([ovs-vsctl add-port br1 p2 -- \
 822    set interface p2 type=dummy options:stream=unix:$OVS_RUNDIR/p0.sock bfd:enable=true -- \
 823 ])
 824
 825 ovs-appctl time/stop
 826 ovs-appctl time/warp 4100 100
 827
 828 # Forwarding should be true
 829 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 830 BFD_CHECK([p2], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 831
 832 # Disable bfd on p2, forwarding on p1 should go to false
 833 AT_CHECK([ovs-vsctl set interface p2 bfd:enable=false])
 834
 835 ovs-appctl time/warp 5000 100
 836 BFD_CHECK([p1], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 837
 838 OVS_VSWITCHD_STOP
 839 AT_CLEANUP
 840
 841 # test bfd: liveness propagation - OF1.3.
 842 AT_SETUP([bfd - liveness propagation - OF1.3])
 843 OVS_VSWITCHD_START
 844 AT_CHECK([ovs-ofctl -O OpenFlow13 -P standard monitor br0 --detach --no-chdir --pidfile])
 845 check_liveness () {
 846     printf '\n\n--- check_liveness %d ---\n\n\n' $1
 847     shift
 848
 849         echo >>expout "OFPT_PORT_STATUS (OF1.3): MOD: 1(p0): addr:
 850      config:     0
 851      state:      $1
 852      speed: 0 Mbps now, 0 Mbps max"
 853
 854         AT_CHECK(
 855       [[sed '
 856 s/ (xid=0x[0-9a-fA-F]*)//
 857 s/ *duration.*//
 858 s/addr:[0-9a-fA-F:]*/addr:/' < monitor.log|grep -A3 "MOD: 1(p0)"|grep -ve --]],
 859       [0], [expout])
 860 }
 861 : > expout
 862 ovs-appctl -t ovs-ofctl ofctl/barrier
 863 ovs-appctl -t ovs-ofctl ofctl/set-output-file monitor.log
 864 # Set miss_send_len to 128, enabling port_status messages to our service connection.
 865 ovs-appctl -t ovs-ofctl ofctl/send 0409000c0123456700000080
 866 #Create 2 bridges connected by patch ports and enable bfd
 867 AT_CHECK([ovs-vsctl add-br br1 -- \
 868           set bridge br1 datapath-type=dummy \
 869           other-config:hwaddr=aa:55:aa:56:00:00 -- \
 870           add-port br1 p1 -- set Interface p1 type=patch \
 871           options:peer=p0 ofport_request=2 -- \
 872           add-port br0 p0 -- set Interface p0 type=patch \
 873           options:peer=p1 ofport_request=1 -- \
 874           set Interface p0 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100 -- \
 875           set Interface p1 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100])
 876
 877 ovs-appctl time/stop
 878 # Disable the stats update to prevent the race between ovsdb updating
 879 # stats and ovs-vsctl cmd closing the jsonrpc session.
 880 AT_CHECK([ovs-vsctl set Open_vSwitch . other_config:stats-update-interval=50000000])
 881
 882 # wait for a while to stablize bfd.
 883 ovs-appctl time/warp 10100 100
 884 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 885 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 886 BFD_CHECK_TX([p0], [100ms], [100ms], [100ms])
 887 BFD_CHECK_RX([p0], [100ms], [100ms], [100ms])
 888 # both p0 and p1 should have flap_count = "1". since down->up.
 889 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 890 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 891 check_liveness 1 LIVE
 892
 893 # turn bfd on p1 off, should increment the bfd:flap_count on p0.
 894 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
 895 ovs-appctl time/warp 5000 100
 896 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 897 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["2"])
 898 AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
 899 check_liveness 2 0
 900
 901 # turn bfd on p1 on again, should increment the bfd:flap_count on p0.
 902 # p1 should still have flap_count = "1", since it is reset.
 903 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
 904 ovs-appctl time/warp 5000 100
 905 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
 906 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 907 check_liveness 3 LIVE
 908
 909 OVS_VSWITCHD_STOP
 910 AT_CLEANUP
 911
 912 # test bfd: liveness propagation - OF1.4.
 913 AT_SETUP([bfd - liveness propagation - OF1.4])
 914 OVS_VSWITCHD_START
 915 AT_CHECK([ovs-ofctl -O OpenFlow14 -P standard monitor br0 --detach --no-chdir --pidfile])
 916 check_liveness () {
 917     printf '\n\n--- check_liveness %d ---\n\n\n' $1
 918     shift
 919
 920         echo >>expout "OFPT_PORT_STATUS (OF1.4): MOD: 1(p0): addr:
 921      config:     0
 922      state:      $1
 923      speed: 0 Mbps now, 0 Mbps max"
 924
 925         AT_CHECK(
 926       [[sed '
 927 s/ (xid=0x[0-9a-fA-F]*)//
 928 s/ *duration.*//
 929 s/addr:[0-9a-fA-F:]*/addr:/' < monitor.log|grep -A3 "MOD: 1(p0)"|grep -ve --]],
 930       [0], [expout])
 931 }
 932 : > expout
 933 ovs-appctl -t ovs-ofctl ofctl/barrier
 934 ovs-appctl -t ovs-ofctl ofctl/set-output-file monitor.log
 935 # Set miss_send_len to 128, enabling port_status messages to our service connection.
 936 ovs-appctl -t ovs-ofctl ofctl/send 0509000c0123456700000080
 937 #Create 2 bridges connected by patch ports and enable bfd
 938 AT_CHECK([ovs-vsctl add-br br1 -- \
 939           set bridge br1 datapath-type=dummy \
 940           other-config:hwaddr=aa:55:aa:56:00:00 -- \
 941           add-port br1 p1 -- set Interface p1 type=patch \
 942           options:peer=p0 ofport_request=2 -- \
 943           add-port br0 p0 -- set Interface p0 type=patch \
 944           options:peer=p1 ofport_request=1 -- \
 945           set Interface p0 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100 -- \
 946           set Interface p1 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100])
 947
 948 ovs-appctl time/stop
 949 # Disable the stats update to prevent the race between ovsdb updating
 950 # stats and ovs-vsctl cmd closing the jsonrpc session.
 951 AT_CHECK([ovs-vsctl set Open_vSwitch . other_config:stats-update-interval=50000000])
 952
 953 # wait for a while to stablize bfd.
 954 ovs-appctl time/warp 10100 100
 955 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 956 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
 957 BFD_CHECK_TX([p0], [100ms], [100ms], [100ms])
 958 BFD_CHECK_RX([p0], [100ms], [100ms], [100ms])
 959 # both p0 and p1 should have flap_count = "1". since down->up.
 960 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 961 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 962 check_liveness 1 LIVE
 963
 964 # turn bfd on p1 off, should increment the bfd:flap_count on p0.
 965 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
 966 ovs-appctl time/warp 5000 100
 967 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
 968 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["2"])
 969 AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
 970 check_liveness 2 0
 971
 972 # turn bfd on p1 on again, should increment the bfd:flap_count on p0.
 973 # p1 should still have flap_count = "1", since it is reset.
 974 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
 975 ovs-appctl time/warp 5000 100
 976 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
 977 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
 978 check_liveness 3 LIVE
 979
 980 OVS_VSWITCHD_STOP
 981 AT_CLEANUP
 982
 983 # test bfd: liveness propagation - OF1.5.
 984 AT_SETUP([bfd - liveness propagation - OF1.5])
 985 OVS_VSWITCHD_START
 986 AT_CHECK([ovs-ofctl -O OpenFlow15 -P standard monitor br0 --detach --no-chdir --pidfile])
 987 check_liveness () {
 988     printf '\n\n--- check_liveness %d ---\n\n\n' $1
 989     shift
 990
 991         echo >>expout "OFPT_PORT_STATUS (OF1.5): MOD: 1(p0): addr:
 992      config:     0
 993      state:      $1
 994      speed: 0 Mbps now, 0 Mbps max"
 995
 996         AT_CHECK(
 997       [[sed '
 998 s/ (xid=0x[0-9a-fA-F]*)//
 999 s/ *duration.*//
1000 s/addr:[0-9a-fA-F:]*/addr:/' < monitor.log|grep -A3 "MOD: 1(p0)"|grep -ve --]],
1001       [0], [expout])
1002 }
1003 : > expout
1004 ovs-appctl -t ovs-ofctl ofctl/barrier
1005 ovs-appctl -t ovs-ofctl ofctl/set-output-file monitor.log
1006 # Set miss_send_len to 128, enabling port_status messages to our service connection.
1007 ovs-appctl -t ovs-ofctl ofctl/send 0609000c0123456700000080
1008 #Create 2 bridges connected by patch ports and enable bfd
1009 AT_CHECK([ovs-vsctl add-br br1 -- \
1010           set bridge br1 datapath-type=dummy \
1011           other-config:hwaddr=aa:55:aa:56:00:00 -- \
1012           add-port br1 p1 -- set Interface p1 type=patch \
1013           options:peer=p0 ofport_request=2 -- \
1014           add-port br0 p0 -- set Interface p0 type=patch \
1015           options:peer=p1 ofport_request=1 -- \
1016           set Interface p0 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100 -- \
1017           set Interface p1 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100])
1018
1019 ovs-appctl time/stop
1020 # Disable the stats update to prevent the race between ovsdb updating
1021 # stats and ovs-vsctl cmd closing the jsonrpc session.
1022 AT_CHECK([ovs-vsctl set Open_vSwitch . other_config:stats-update-interval=50000000])
1023
1024 # wait for a while to stablize bfd.
1025 ovs-appctl time/warp 10100 100
1026 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
1027 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
1028 BFD_CHECK_TX([p0], [100ms], [100ms], [100ms])
1029 BFD_CHECK_RX([p0], [100ms], [100ms], [100ms])
1030 # both p0 and p1 should have flap_count = "1". since down->up.
1031 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
1032 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
1033 check_liveness 1 LIVE
1034
1035 # turn bfd on p1 off, should increment the bfd:flap_count on p0.
1036 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
1037 ovs-appctl time/warp 5000 100
1038 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
1039 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["2"])
1040 AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
1041 check_liveness 2 0
1042
1043 # turn bfd on p1 on again, should increment the bfd:flap_count on p0.
1044 # p1 should still have flap_count = "1", since it is reset.
1045 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
1046 ovs-appctl time/warp 5000 100
1047 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
1048 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
1049 check_liveness 3 LIVE
1050
1051 OVS_VSWITCHD_STOP
1052 AT_CLEANUP
1053
1054 AT_SETUP([bfd - Edit the Detect Mult values])
1055 #Create 2 bridges connected by patch ports and enable BFD
1056 OVS_VSWITCHD_START()
1057 ovs-appctl time/stop
1058 AT_CHECK([ ovs-vsctl -- add-br br1 -- \
1059            set bridge br1 datapath-type=dummy ])
1060 AT_CHECK([ ovs-vsctl -- add-port br1 p1 -- set Interface p1 type=patch\
1061            options:peer=p0 ])
1062 AT_CHECK([ ovs-vsctl -- add-port br0 p0 -- set Interface p0 type=patch\
1063            options:peer=p1 ])
1064 AT_CHECK([ ovs-vsctl -- set interface p0 bfd:enable=true ])
1065 AT_CHECK([ ovs-vsctl -- set interface p1 bfd:enable=true ])
1066 ovs-appctl time/warp 3100 100
1067 #Verify that BFD has been enabled on both interfaces.
1068 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
1069 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
1070 #Verify that default mult values are 3.
1071 BFD_CHECK_MULT([p0], [3], [3])
1072 BFD_CHECK_MULT([p1], [3], [3])
1073 #Set the mult values to valid range border mult(p0)=1 mult(p1)=255.
1074 AT_CHECK([ovs-vsctl set interface p0 bfd:mult=1])
1075 AT_CHECK([ovs-vsctl set interface p1 bfd:mult=255])
1076 ovs-appctl time/warp 3100 100
1077 BFD_CHECK_MULT([p0], [1], [255])
1078 BFD_CHECK_MULT([p1], [255], [1])
1079
1080 #Set the mult values out valid range border mult(p0)=0 mult(p1)=256.
1081 AT_CHECK([ovs-vsctl set interface p0 bfd:mult=0])
1082 AT_CHECK([ovs-vsctl set interface p1 bfd:mult=256])
1083 ovs-appctl time/warp 3100 100
1084 BFD_CHECK_MULT([p0], [3], [3])
1085 BFD_CHECK_MULT([p1], [3], [3])
1086
1087 #Set valid non default mult values mult(p0)=8 mult(p1)=125.
1088 AT_CHECK([ovs-vsctl set interface p0 bfd:mult=8])
1089 AT_CHECK([ovs-vsctl set interface p1 bfd:mult=125])
1090 ovs-appctl time/warp 3100 100
1091 BFD_CHECK_MULT([p0], [8], [125])
1092 BFD_CHECK_MULT([p1], [125], [8])
1093
1094 #Clear mult values. Detect mult values shall be default 3 again.
1095 AT_CHECK([ovs-vsctl remove interface p0 bfd mult])
1096 AT_CHECK([ovs-vsctl remove interface p1 bfd mult])
1097 ovs-appctl time/warp 3100 100
1098 BFD_CHECK_MULT([p0], [3], [3])
1099 BFD_CHECK_MULT([p1], [3], [3])
1100
1101 OVS_VSWITCHD_STOP
1102 AT_CLEANUP