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'],[0],
8 Concatenated Path Down: $3
11 Local Session State: $5
15 Remote Session State: $8
20 m4_define([BFD_CHECK_TX], [
21 AT_CHECK([ovs-appctl bfd/show $1 | sed -n '/TX Interval/p'],[0],
23 TX Interval: Approx $2
24 Local Minimum TX Interval: $3
25 Remote Minimum TX Interval: $4
29 m4_define([BFD_CHECK_RX], [
30 AT_CHECK([ovs-appctl bfd/show $1 | sed -n '/RX Interval/p'],[0],
32 RX Interval: Approx $2
33 Local Minimum RX Interval: $3
34 Remote Minimum RX Interval: $4
38 m4_define([BFD_VSCTL_LIST_IFACE], [
39 AT_CHECK([ovs-vsctl list interface $1 | sed -n $2],[0],
45 AT_SETUP([bfd - basic config on different bridges])
46 #Create 2 bridges connected by patch ports and enable BFD
49 set bridge br1 datapath-type=dummy \
50 other-config:hwaddr=aa:55:aa:56:00:00 -- \
51 add-port br1 p1 -- set Interface p1 type=patch \
53 add-port br0 p0 -- set Interface p0 type=patch \
55 set Interface p0 bfd:enable=true -- \
56 set Interface p1 bfd:enable=true ])
58 for i in `seq 0 40`; do ovs-appctl time/warp 100; done
60 #Verify that BFD has been enabled on both interfaces.
61 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
62 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
64 AT_CHECK([ ovs-vsctl set interface p0 bfd:enable=false])
65 for i in `seq 0 40`; do ovs-appctl time/warp 100; done
66 BFD_CHECK([p1], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
68 AT_CHECK([ ovs-vsctl set interface p0 bfd:enable=true])
69 for i in `seq 0 40`; do ovs-appctl time/warp 100; done
70 BFD_CHECK([p1], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [No Diagnostic])
71 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [Control Detection Time Expired])
74 AT_CHECK([ovs-appctl bfd/show p0], [2],[ignore], [no such bfd object
75 ovs-appctl: ovs-vswitchd: server returned an error
78 #Check that the entries are gone.
79 AT_CHECK([ovs-appctl bfd/show p1], [2],[ignore], [no such bfd object
80 ovs-appctl: ovs-vswitchd: server returned an error
87 AT_SETUP([bfd - Verify tunnel down detection])
88 #Create 3 bridges - br-bfd0, br-bfd1 and br-sw which is midway between the two. br2 is
89 #connected to br-bfd0 and br-bfd1 through patch ports p0-2 and p1-2. Enable BFD on
90 #interfaces in br-bfd0 and br-bfd1. When br-sw is dropping all packets, BFD should detect
91 # that the tunnel is down, and come back up when br-sw is working fine.
95 set bridge br-bfd0 datapath-type=dummy \
96 other-config:hwaddr=aa:55:aa:56:00:00 -- \
98 set bridge br-bfd1 datapath-type=dummy \
99 other-config:hwaddr=aa:55:aa:57:00:00 -- \
101 set bridge br-sw datapath-type=dummy \
102 other-config:hwaddr=aa:55:aa:58:00:00 -- \
103 add-port br-sw p1-sw -- set Interface p1-sw type=patch \
105 add-port br-sw p0-sw -- set Interface p0-sw type=patch \
107 add-port br-bfd1 p1 -- set Interface p1 type=patch \
108 options:peer=p1-sw bfd:enable=true -- \
109 add-port br-bfd0 p0 -- set Interface p0 type=patch \
110 options:peer=p0-sw bfd:enable=true --])
114 #Create 2 bridges connected by patch ports and enable BFD
116 AT_CHECK([ovs-ofctl add-flow br-sw 'priority=0,actions=NORMAL'])
117 #Verify that BFD is enabled.
118 for i in `seq 0 40`; do ovs-appctl time/warp 100; done
119 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
120 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
122 #Drop all packets in the br-sw bridge so that the tunnel is down.
123 AT_CHECK([ ovs-ofctl add-flow br-sw 'priority=5,actions=drop' ])
124 for i in `seq 0 40`; do ovs-appctl time/warp 100; done
125 BFD_CHECK([p1], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
126 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
128 #Delete the added flow
129 AT_CHECK([ovs-ofctl del-flows br-sw], [0])
130 AT_CHECK([ovs-ofctl add-flow br-sw 'priority=0,actions=NORMAL'])
131 #Verify that BFD is back up again.
132 for i in `seq 0 40`; do ovs-appctl time/warp 100; done
134 BFD_CHECK([p1], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [Control Detection Time Expired])
135 BFD_CHECK([p0], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [Control Detection Time Expired])
137 #Now, Verify one-side tunnel down detection
138 #When br-sw is dropping packets from one end, BFD should detect
139 # that the tunnel is down, and come back up when br-sw is working fine.
141 #Bring down the br-bfd1 - br-sw link. So BFD packets will be sent from p0,
142 # but not received by p1. p0 will receive all BFD packets from p1.
144 AT_CHECK([ ovs-ofctl add-flow br-sw 'in_port=1,priority=5,actions=drop'])
145 for i in `seq 0 40`; do ovs-appctl time/warp 100; done
146 # Make sure p1 BFD state is down since it received no BFD packets.
147 BFD_CHECK([p1], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
148 for i in `seq 0 40`; do ovs-appctl time/warp 100; done
149 # p0 will be in init state once it receives "down" BFD message from p1.
150 BFD_CHECK([p0], [false], [false], [none], [init], [Neighbor Signaled Session Down], [none], [down], [Control Detection Time Expired])
152 AT_CHECK([ovs-ofctl del-flows br-sw])
153 AT_CHECK([ovs-ofctl add-flow br-sw 'priority=0,actions=NORMAL'])
154 #Ensure that BFD is back up again.
156 for i in `seq 0 10`; do ovs-appctl time/warp 100; done
157 #Bring down the br-bfd0 - br-sw link
158 AT_CHECK([ ovs-ofctl add-flow br-sw 'in_port=2,priority=5,actions=drop'])
159 for i in `seq 0 40`; do ovs-appctl time/warp 100; done
160 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
161 for i in `seq 0 40`; do ovs-appctl time/warp 100; done
162 BFD_CHECK([p1], [false], [false], [none], [init], [Neighbor Signaled Session Down], [none], [down], [Control Detection Time Expired])
167 AT_SETUP([bfd - concatenated path down])
168 #Create 2 bridges connected by patch ports and enable BFD
171 AT_CHECK([ ovs-vsctl -- add-br br1 -- \
172 set bridge br1 datapath-type=dummy \
173 other-config:hwaddr=aa:55:aa:56:00:00 ])
174 AT_CHECK([ ovs-vsctl -- add-port br1 p1 -- set Interface p1 type=patch \
176 AT_CHECK([ ovs-vsctl -- add-port br0 p0 -- set Interface p0 type=patch \
178 AT_CHECK([ ovs-vsctl -- set interface p0 bfd:enable=true ])
179 AT_CHECK([ ovs-vsctl -- set interface p1 bfd:enable=true ])
180 for i in `seq 0 40`; do ovs-appctl time/warp 100; done
182 #Verify that BFD has been enabled on both interfaces.
183 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
184 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
186 #Set cpath_down to true on one interface, make sure the remote interface updates its values.
187 AT_CHECK([ovs-vsctl set interface p0 bfd:cpath_down=true])
188 for i in `seq 0 40`; do ovs-appctl time/warp 100; done
189 BFD_CHECK([p1], [false], [false], [none], [up], [No Diagnostic], [none], [up], [Concatenated Path Down])
194 AT_SETUP([bfd - Edit the Min Tx/Rx values])
195 #Create 2 bridges connected by patch ports and enable BFD
198 AT_CHECK([ ovs-vsctl -- add-br br1 -- \
199 set bridge br1 datapath-type=dummy ])
200 AT_CHECK([ ovs-vsctl -- add-port br1 p1 -- set Interface p1 type=patch \
202 AT_CHECK([ ovs-vsctl -- add-port br0 p0 -- set Interface p0 type=patch \
204 AT_CHECK([ ovs-vsctl -- set interface p0 bfd:enable=true ])
205 AT_CHECK([ ovs-vsctl -- set interface p1 bfd:enable=true ])
206 for i in `seq 0 30`; do ovs-appctl time/warp 100; done
207 #Verify that BFD has been enabled on both interfaces.
208 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
209 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
210 #Edit the min Tx value.
211 AT_CHECK([ovs-vsctl set interface p0 bfd:min_tx=200])
212 for i in `seq 0 20`; do ovs-appctl time/warp 100; done
213 BFD_CHECK_TX([p0], [1000ms], [200ms], [100ms])
214 BFD_CHECK_TX([p1], [1000ms], [100ms], [200ms])
216 #Edit the min Rx value.
217 AT_CHECK([ovs-vsctl set interface p1 bfd:min_rx=300])
218 for i in `seq 0 20`; do ovs-appctl time/warp 100; done
219 BFD_CHECK_RX([p1], [300ms], [300ms], [1000ms])
220 BFD_CHECK_RX([p0], [1000ms], [1000ms], [300ms])
225 AT_SETUP([bfd - check_tnl_key])
226 OVS_VSWITCHD_START([add-port br0 p1 -- set Interface p1 type=gre \
227 options:remote_ip=2.2.2.2 options:key=1 ofport_request=1 -- \
228 set interface p1 bfd:enable=true -- \
229 set bridge br0 fail-mode=standalone])
231 # by default check_tnl_key is false. so we should process a bfd packet with tun_id=1.
232 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,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/0xff),udp(src=49152/0,dst=3784/0xffff)' -generate], [0], [stdout])
233 # check that the packet should be handled as BFD packet.
234 AT_CHECK([tail -2 stdout], [0], [dnl
235 This flow is handled by the userspace slow path because it:
236 - Consists of BFD packets.
239 # turn on the check_tnl_key.
240 AT_CHECK([ovs-vsctl set interface p1 bfd:check_tnl_key=true])
241 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,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/0xff),udp(src=49152/0,dst=3784/0xffff)' -generate], [0], [stdout])
242 # check that the packet should be handled as normal packet.
243 AT_CHECK([tail -1 stdout], [0],[dnl
244 Datapath actions: 100
247 # set the tunnel key to 0.
248 AT_CHECK([ovs-vsctl set interface p1 options:key=0])
249 AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'tunnel(tun_id=0x0,src=2.2.2.2,dst=2.2.2.1,tos=0x0,ttl=64,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/0xff),udp(src=49152/0,dst=3784/0xffff)' -generate], [0], [stdout])
250 # check that the packet should be handled as BFD packet.
251 AT_CHECK([tail -2 stdout], [0], [dnl
252 This flow is handled by the userspace slow path because it:
253 - Consists of BFD packets.
259 # Tests below are for bfd decay features.
260 AT_SETUP([bfd - bfd decay])
261 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
262 add-port br1 p1 -- set Interface p1 type=patch \
263 options:peer=p0 ofport_request=2 -- \
264 add-port br0 p0 -- set Interface p0 type=patch \
265 options:peer=p1 ofport_request=1 -- \
266 set Interface p0 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 -- \
267 set Interface p1 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500])
271 # wait for a while to stablize everything.
272 for i in `seq 0 9`; do ovs-appctl time/warp 500; done
273 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
274 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
275 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
276 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
278 # Test-1 BFD decay: decay to decay_min_rx
279 AT_CHECK([ovs-vsctl set interface p0 bfd:decay_min_rx=3000])
280 # set the bfd:decay_min_rx of p0 to 3000ms.
281 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
282 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
284 # bfd:decay_min_rx is set to 3000ms after the local state of p0 goes up,
285 # so for the first 2500ms, there should be no change.
286 for i in `seq 0 4`; do ovs-appctl time/warp 500; done
287 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
288 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
289 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
291 # advance the clock by 2000ms.
292 for i in `seq 0 3`; do ovs-appctl time/warp 500; done
293 # now, min_rx should decay to 3000ms.
294 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
295 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
297 # the rx_min of p0 is 3000ms now, and p1 will send next control message
298 # 3000ms after decay. so, advance clock by 5000ms to make that happen.
299 for i in `seq 0 9`; do ovs-appctl time/warp 500; done
300 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
301 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
302 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
303 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
304 # End of Test-1 ###############################################################
307 # Test-2 BFD decay: go back to cfg_min_rx when there is traffic
308 # receive packet at 1/100ms rate for 5000ms.
311 ovs-appctl time/warp 100
312 AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
315 # after a decay interval (3000ms), the p0 min_rx will go back to
317 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
318 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
319 # End of Test-2 ###############################################################
322 # Test-3 BFD decay: go back to cfg_min_rx when decay_min_rx is changed
323 # advance the clock by 5000m. p0 shoud decay.
324 for i in `seq 0 9`; do ovs-appctl time/warp 500; done
325 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
326 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
328 # advance the clock, to make 'flag' go back to none.
329 for i in `seq 0 5`; do ovs-appctl time/warp 500; done
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])
333 # change decay_min_rx to 1000ms.
334 # for decay_min_rx < 2000ms, the decay detection time is set to 2000ms.
335 # this should reset the min_rx.
336 AT_CHECK([ovs-vsctl set Interface p0 bfd:decay_min_rx=1000])
337 ovs-appctl time/warp 100
338 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
339 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
341 # for the following 1500ms, there should be no decay,
342 # since the decay_detect_time is set to 2000ms.
345 ovs-appctl time/warp 500
346 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
347 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
348 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
349 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
352 # advance the clock by 2000ms, decay should have happened.
353 for i in `seq 0 3`; do ovs-appctl time/warp 500; done
354 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
355 BFD_CHECK_RX([p0], [1000ms], [1000ms], [500ms])
356 # advance the clock, so 'flag' go back to none.
357 for i in `seq 0 9`; do ovs-appctl time/warp 500; done
358 # End of Test-3 ###############################################################
361 # Test-4 BFD decay: set min_rx to 800ms.
362 # this should firstly reset the min_rx and then re-decay to 1000ms.
363 AT_CHECK([ovs-vsctl set Interface p0 bfd:min_rx=800])
364 ovs-appctl time/warp 100
366 # for the following 1600ms, there should be no decay,
367 # since the decay detection time is set to 2000ms.
370 ovs-appctl time/warp 800
371 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
372 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
373 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
374 BFD_CHECK_RX([p0], [800ms], [800ms], [500ms])
377 # advance the clock by 2000ms, decay should have happened.
378 for i in `seq 0 3`; do ovs-appctl time/warp 500; done
379 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
380 BFD_CHECK_RX([p0], [1000ms], [1000ms], [500ms])
381 # advance the clock, so 'flag' go back to none.
382 for i in `seq 0 9`; do ovs-appctl time/warp 500; done
383 # End of Test-4 ###############################################################
386 # Test-5 BFD decay: set min_rx to 300ms and decay_min_rx to 5000ms together.
387 AT_CHECK([ovs-vsctl set Interface p0 bfd:min_rx=300 bfd:decay_min_rx=5000])
388 ovs-appctl time/warp 100
390 # for decay_min_rx > 2000ms, the decay detection time is set to
391 # decay_min_rx (5000ms).
392 # for the following 4500ms, there should be no decay,
393 # since the decay detection time is set to 5000ms.
396 ovs-appctl time/warp 500
397 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
398 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
399 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
400 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
403 # advance the clock by 2000ms, decay should have happened.
404 for i in `seq 0 3`; do ovs-appctl time/warp 500; done
405 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
406 BFD_CHECK_RX([p0], [5000ms], [5000ms], [500ms])
407 # advance the clock, to make 'flag' go back to none.
408 for i in `seq 0 9`; do ovs-appctl time/warp 500; done
409 # End of Test-5 ###############################################################
412 # Test-6 BFD decay: set decay_min_rx to 0 to disable bfd decay.
413 AT_CHECK([ovs-vsctl set Interface p0 bfd:decay_min_rx=0])
414 ovs-appctl time/warp 100
418 ovs-appctl time/warp 500
419 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
420 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
421 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
422 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
424 # End of Test-6 ################################################################
427 # Test-7 BFD decay: rmt_min_tx is greater than decay_min_rx
428 AT_CHECK([ovs-vsctl set Interface p0 bfd:decay_min_rx=3000 -- set interface p1 bfd:min_tx=5000])
429 # there will be poll sequences from both sides. and it is hard to determine the
430 # order. so just skip 10000ms and check the RX/TX. at that time, p0 should be in decay already.
431 for i in `seq 0 19`; do ovs-appctl time/warp 500; done
432 BFD_CHECK_TX([p0], [500ms], [300ms], [5000ms])
433 BFD_CHECK_RX([p0], [5000ms], [3000ms], [500ms])
434 # then, there should be no change of status,
437 ovs-appctl time/warp 500
438 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
439 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
440 BFD_CHECK_TX([p0], [500ms], [300ms], [5000ms])
441 BFD_CHECK_RX([p0], [5000ms], [3000ms], [500ms])
443 # reset the p1's min_tx to 500ms.
444 AT_CHECK([ovs-vsctl set Interface p1 bfd:min_tx=500])
445 ovs-appctl time/warp 100
447 # since p0 has been in decay, now the RX will show 3000ms.
448 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
449 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
450 # End of Test-7 ###############################################################
453 # Test-8 BFD decay: state up->down->up.
455 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false])
457 # check the state change of bfd on p0. After 15000 ms (> 3 min_rx intervals)
458 for i in `seq 0 14`; do ovs-appctl time/warp 1000; done
459 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
460 BFD_CHECK_TX([p0], [1000ms], [1000ms], [0ms])
461 BFD_CHECK_RX([p0], [300ms], [300ms], [1ms])
463 # resume the bfd on p1. the bfd should not go to decay mode direclty.
464 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=true])
465 for i in `seq 0 3`; do ovs-appctl time/warp 500; done
466 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
467 BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
469 # since the decay_min_rx is still 3000ms, so after 5000ms, p0 should have decayed.
470 for i in `seq 0 9`; do ovs-appctl time/warp 500; done
471 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
472 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
473 # End of Test-8 ################################################################
478 # Tests below are for bfd forwarding_if_rx feature.
480 # forwarding_if_rx Test1
481 # Test1 tests the case when bfd is only enabled on one end of the link.
482 # Under this situation, the bfd state should be DOWN and the forwarding
483 # flag should be FALSE by default. However, if forwarding_if_rx is
484 # enabled, as long as there is packet received, the bfd forwarding flag
486 AT_SETUP([bfd - bfd forwarding_if_rx - bfd on one side])
487 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
488 add-port br1 p1 -- set Interface p1 type=patch \
489 options:peer=p0 ofport_request=2 -- \
490 add-port br0 p0 -- set Interface p0 type=patch \
491 options:peer=p1 ofport_request=1 -- \
492 set Interface p0 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500 -- \
493 add-port br1 p2 -- set Interface p2 type=internal ofport_request=3])
496 # check the inital status.
497 BFD_CHECK([p0], [false], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
498 BFD_CHECK_TX([p0], [1000ms], [1000ms], [0ms])
499 BFD_CHECK_RX([p0], [500ms], [500ms], [1ms])
501 # enable forwarding_if_rx.
502 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
504 # there should be no change of forwarding flag, since
505 # there is no traffic.
508 ovs-appctl time/warp 500
509 BFD_CHECK([p0], [false], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
512 # receive packet at 1/100ms rate for 2000ms.
515 ovs-appctl time/warp 100
516 AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
519 # the forwarding flag should be true, since there is data received.
520 BFD_CHECK([p0], [true], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
522 # reset bfd forwarding_if_rx.
523 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=false], [0])
524 # forwarding flag should turn to false since the STATE is DOWN.
525 BFD_CHECK([p0], [false], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
526 BFD_CHECK_TX([p0], [1000ms], [1000ms], [0ms])
527 BFD_CHECK_RX([p0], [500ms], [500ms], [1ms])
529 AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
533 # forwarding_if_rx Test2
534 # Test2 is for testing that the enable of forwarding_if_rx will not
535 # affect the normal bfd communication. bfd is enabled on both ends of
537 AT_SETUP([bfd - bfd forwarding_if_rx - bfd on both sides])
538 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
539 add-port br1 p1 -- set Interface p1 type=patch \
540 options:peer=p0 ofport_request=2 -- \
541 add-port br0 p0 -- set Interface p0 type=patch \
542 options:peer=p1 ofport_request=1 -- \
543 set Interface p0 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500 -- \
544 set Interface p1 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 -- \
545 add-port br1 p2 -- set Interface p2 type=internal ofport_request=3])
548 # advance the clock, to stablize the states.
549 for i in `seq 0 9`; do ovs-appctl time/warp 500; done
551 # enable forwarding_if_rx.
552 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
554 # there should be no change of the forwarding flag, since
555 # the bfd on both ends is already up.
558 ovs-appctl time/warp 500
559 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
562 # stop the bfd on one side.
563 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
564 # for within 1500ms, the detection timer is not out.
565 # there is no change to status.
568 ovs-appctl time/warp 500
569 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
572 AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
577 # at 1500ms, the STATE should go DOWN, due to Control Detection Time Expired.
578 # but forwarding flag should be still true.
579 ovs-appctl time/warp 500
580 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
582 # reset bfd forwarding_if_rx.
583 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=false], [0])
584 # forwarding flag should turn to false since the STATE is DOWN.
585 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
587 # re-enable bfd on the other end. the states should be up.
588 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300])
589 # advance the clock, to stablize the states.
590 for i in `seq 0 9`; do ovs-appctl time/warp 500; done
591 BFD_CHECK([p0], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [No Diagnostic])
592 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [Control Detection Time Expired])
593 BFD_CHECK_TX([p0], [500ms], [500ms], [300ms])
594 BFD_CHECK_RX([p0], [500ms], [500ms], [300ms])
596 AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
599 # forwarding_if_rx Test3
600 # Test3 is for testing that the enable of forwarding_if_rx will not
601 # affect the bfd decay feature. bfd is enabled on both ends of the link.
602 AT_SETUP([bfd - bfd forwarding_if_rx - with bfd decay])
603 OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
604 add-port br1 p1 -- set Interface p1 type=patch \
605 options:peer=p0 ofport_request=2 -- \
606 add-port br0 p0 -- set Interface p0 type=patch \
607 options:peer=p1 ofport_request=1 -- \
608 set Interface p0 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 bfd:decay_min_rx=3000 -- \
609 set Interface p1 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500])
612 # advance the clock, to stablize the states.
613 for i in `seq 0 19`; do ovs-appctl time/warp 500; done
614 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
615 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
616 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
617 BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
619 # enable forwarding_if_rx.
620 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
622 # there should be no change of the forwarding flag, since
623 # the bfd on both ends is already up.
626 ovs-appctl time/warp 500
627 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
630 # reconfigure the decay_min_rx to 1000ms.
631 AT_CHECK([ovs-vsctl set interface p0 bfd:decay_min_rx=1000])
633 # wait for 5000ms to decay.
634 for i in `seq 0 9`; do ovs-appctl time/warp 500; done
635 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
636 BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
637 BFD_CHECK_RX([p0], [1000ms], [1000ms], [500ms])
639 # stop the bfd on one side.
640 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
642 # advance clock by 4000ms, while receiving packets.
643 # the STATE should go DOWN, due to Control Detection Time Expired.
644 # but forwarding flag should be still true.
647 ovs-appctl time/warp 500
648 AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
651 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
653 # receive packet at 1/100ms rate for 1000ms.
656 AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
658 ovs-appctl time/warp 100
659 # the forwarding flag should always be true during this time.
660 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
663 # stop receiving for 5000ms.
664 for i in `seq 0 49`; do ovs-appctl time/warp 100; done
665 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
667 # reset bfd forwarding_if_rx.
668 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=false])
669 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
670 # re-enable bfd forwarding_if_rx.
671 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true])
672 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
674 # re-enable bfd on the other end. the states should be up.
675 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300])
676 # advance the clock, to stablize the states.
677 for i in `seq 0 19`; do ovs-appctl time/warp 500; done
678 BFD_CHECK([p0], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [No Diagnostic])
679 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [Control Detection Time Expired])
680 BFD_CHECK_TX([p0], [300ms], [300ms], [300ms])
681 BFD_CHECK_RX([p0], [1000ms], [1000ms], [300ms])
683 AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
686 # test bfd:flap_count.
687 # This test contains three part:
688 # part 1. tests the flap_count on normal bfd monitored link.
689 # part 2. tests the flap_count when forwarding override is used.
690 # part 3. tests the flap_count when forwarding_if_rx is enabled.
691 AT_SETUP([bfd - flap_count])
692 #Create 2 bridges connected by patch ports and enable bfd
693 OVS_VSWITCHD_START([add-br br1 -- \
694 set bridge br1 datapath-type=dummy \
695 other-config:hwaddr=aa:55:aa:56:00:00 -- \
696 add-port br1 p1 -- set Interface p1 type=patch \
697 options:peer=p0 ofport_request=2 -- \
698 add-port br0 p0 -- set Interface p0 type=patch \
699 options:peer=p1 ofport_request=1 -- \
700 set Interface p0 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100 -- \
701 set Interface p1 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100])
705 # Part-1 wait for a while to stablize bfd.
706 for i in `seq 0 100`; do ovs-appctl time/warp 100; done
707 BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
708 BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
709 BFD_CHECK_TX([p0], [100ms], [100ms], [100ms])
710 BFD_CHECK_RX([p0], [100ms], [100ms], [100ms])
711 # both p0 and p1 should have flap_count = "1". since down->up.
712 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
713 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
715 # turn bfd on p1 off, should increment the bfd:flap_count on p0.
716 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
717 for i in `seq 0 49`; do ovs-appctl time/warp 100; done
718 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
719 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["2"])
720 AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
722 # turn bfd on p1 on again, should increment the bfd:flap_count on p0.
723 # p1 should still have flap_count = "1", since it is reset.
724 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
725 for i in `seq 0 49`; do ovs-appctl time/warp 100; done
726 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
727 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
730 # Part-2 now turn on the forwarding_override.
731 AT_CHECK([ovs-appctl bfd/set-forwarding p0 true], [0], [dnl
735 # turn bfd on p1 off, should not increment the bfd:flap_count on p0, since forwarding_override is on.
736 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
737 for i in `seq 0 49`; do ovs-appctl time/warp 100; done
738 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
739 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
740 AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
742 # turn bfd on p1 on again, should not increment the bfd:flap_count on p0, since forwarding override is on.
743 # p1 should still have flap_count = "1", since it is reset.
744 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
745 for i in `seq 0 49`; do ovs-appctl time/warp 100; done
746 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
747 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
749 # turn the forwarding_override back to normal.
750 AT_CHECK([ovs-appctl bfd/set-forwarding p0 normal], [0], [dnl
754 # turn bfd on p1 off and on, should increment the bfd:flap_count on p0.
755 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
756 for i in `seq 0 49`; do ovs-appctl time/warp 100; done
757 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
758 for i in `seq 0 49`; do ovs-appctl time/warp 100; done
759 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["5"])
760 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
762 # Part-3 now turn on forwarding_if_rx.
763 AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
764 # disable the bfd on p1.
765 AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
767 # advance clock by 4000ms, while receiving packets.
768 # the STATE should go DOWN, due to Control Detection Time Expired.
769 # but forwarding flag should be true.
772 ovs-appctl time/warp 100
773 AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
776 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
777 # flap_count should remain unchanged.
778 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["5"])
780 # stop the traffic for 4000ms, the forwarding flag of p0 should turn false.
781 # and there should be the increment of flap_count.
782 for i in `seq 0 7`; do ovs-appctl time/warp 500; done
783 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
784 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["6"])
786 # advance clock by 4000ms, and resume the traffic.
789 ovs-appctl time/warp 100
790 AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
793 BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
794 # flap_count should be incremented again.
795 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["7"])
797 # stop the traffic for 4000ms, the forwarding flag of p0 should turn false.
798 # and there should be the increment of flap_count.
799 for i in `seq 0 7`; do ovs-appctl time/warp 500; done
800 BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
801 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["8"])
803 # turn on the bfd on p1.
804 AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
805 for i in `seq 0 49`; do ovs-appctl time/warp 100; done
806 # even though there is no data traffic, since p1 bfd is on again, should increment the flap_count.
807 BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["9"])
808 BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])