Remote Minimum RX Interval: $4
])
])
+
+m4_define([BFD_VSCTL_LIST_IFACE], [
+AT_CHECK([ovs-vsctl list interface $1 | sed -n $2],[0],
+[dnl
+$3
+])
+])
+
AT_SETUP([bfd - basic config on different bridges])
#Create 2 bridges connected by patch ports and enable BFD
OVS_VSWITCHD_START(
options:peer=p0 ofport_request=2 -- \
add-port br0 p0 -- set Interface p0 type=patch \
options:peer=p1 ofport_request=1 -- \
- set Interface p0 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 bfd:decay_min_rx=3000 -- \
+ set Interface p0 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 -- \
set Interface p1 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500])
ovs-appctl time/stop
-for i in `seq 0 1`; do ovs-appctl time/warp 500; done
-
-# figuring out which port initiates the bfd session is important,
-# since this whole unit test is based on exact timing sequence.
-# for example, if p0 starts the bfd session, the p0 should have gone
-# [up] now, and it will decay after 3000ms. if p1 starts the bfd
-# session, we should wait for another 1000ms for p0 to go [up], and
-# then 3000ms for it to decay.
-
-# check which port sends the first bfd control packet.
-if [ ovs-appctl bfd/show p0 | grep "Remote Session State: init" ]
-then
-# if p0 sends first, it should have gone up already.
- BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [init], [No Diagnostic])
-else
-# if p1 sends first, wait 1000ms for p0 to go up.
- BFD_CHECK([p0], [false], [false], [none], [init], [No Diagnostic], [none], [down], [No Diagnostic])
- for i in `seq 0 1`; do ovs-appctl time/warp 500; done
-fi
+# wait for a while to stablize everything.
+for i in `seq 0 9`; do ovs-appctl time/warp 500; done
+BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
+BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
+BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
+BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
# Test-1 BFD decay: decay to decay_min_rx
+AT_CHECK([ovs-vsctl set interface p0 bfd:decay_min_rx=3000])
+# set the bfd:decay_min_rx of p0 to 3000ms.
+BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
+BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
+
# bfd:decay_min_rx is set to 3000ms after the local state of p0 goes up,
# so for the first 2500ms, there should be no change.
for i in `seq 0 4`; do ovs-appctl time/warp 500; done
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
-# advance the clock by 500ms.
-ovs-appctl time/warp 500
-# now at 3000ms, min_rx should decay to 3000ms and there should be
-# poll sequence flags.
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [final], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [poll], [up], [No Diagnostic])
+# advance the clock by 2000ms.
+for i in `seq 0 3`; do ovs-appctl time/warp 500; done
+# now, min_rx should decay to 3000ms.
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
-# since the tx_min of p0 is still 500ms, after 500ms from decay,
-# the control message will be sent from p0 to p1, and p1 'flag'
-# will go back to none.
-ovs-appctl time/warp 500
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
-
# the rx_min of p0 is 3000ms now, and p1 will send next control message
-# 3000ms after decay. so, advance clock by 2500ms to make that happen.
-for i in `seq 0 4`; do ovs-appctl time/warp 500; done
+# 3000ms after decay. so, advance clock by 5000ms to make that happen.
+for i in `seq 0 9`; do ovs-appctl time/warp 500; done
BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
+BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
# End of Test-1 ###############################################################
# Test-2 BFD decay: go back to cfg_min_rx when there is traffic
-# receive packet at 1/100ms rate for 3000ms.
-for i in `seq 0 30`
+# receive packet at 1/100ms rate for 5000ms.
+for i in `seq 0 49`
do
ovs-appctl time/warp 100
AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
[0], [stdout], [])
done
# after a decay interval (3000ms), the p0 min_rx will go back to
-# cfg_min_rx. there should be poll sequence flags.
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [final], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [poll], [up], [No Diagnostic])
-BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
-BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
-
-# 500ms later, both direction will send control messages,
-# and their 'flag' will go back to none.
-ovs-appctl time/warp 500
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
+# cfg_min_rx.
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
# End of Test-2 ###############################################################
# Test-3 BFD decay: go back to cfg_min_rx when decay_min_rx is changed
-# advance the clock by 2500ms to 3000m after restore of
-# min_rx. p0 is decayed, and there should be the poll sequence flags.
-for i in `seq 0 4`; do ovs-appctl time/warp 500; done
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [final], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [poll], [up], [No Diagnostic])
+# advance the clock by 5000m. p0 shoud decay.
+for i in `seq 0 9`; do ovs-appctl time/warp 500; done
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
# change decay_min_rx to 1000ms.
# for decay_min_rx < 2000ms, the decay detection time is set to 2000ms.
-# this should firstly reset the min_rx and start poll sequence.
+# this should reset the min_rx.
AT_CHECK([ovs-vsctl set Interface p0 bfd:decay_min_rx=1000])
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [final], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [poll], [up], [No Diagnostic])
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
done
-ovs-appctl time/warp 500
-# at 2000ms, decay should happen and there should be the poll sequence flags.
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [final], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [poll], [up], [No Diagnostic])
+# advance the clock by 2000ms, decay should have happened.
+for i in `seq 0 3`; do ovs-appctl time/warp 500; done
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [1000ms], [1000ms], [500ms])
# advance the clock, so 'flag' go back to none.
-for i in `seq 0 4`; do ovs-appctl time/warp 500; done
+for i in `seq 0 9`; do ovs-appctl time/warp 500; done
# End of Test-3 ###############################################################
# Test-4 BFD decay: set min_rx to 800ms.
# this should firstly reset the min_rx and then re-decay to 1000ms.
AT_CHECK([ovs-vsctl set Interface p0 bfd:min_rx=800])
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [final], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [poll], [up], [No Diagnostic])
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [800ms], [800ms], [500ms])
BFD_CHECK_RX([p0], [800ms], [800ms], [500ms])
done
-ovs-appctl time/warp 400
-# at 2000ms, decay should happen and there should be the poll sequence flags.
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [final], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [poll], [up], [No Diagnostic])
+# advance the clock by 2000ms, decay should have happened.
+for i in `seq 0 3`; do ovs-appctl time/warp 500; done
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [1000ms], [1000ms], [500ms])
# advance the clock, so 'flag' go back to none.
-for i in `seq 0 4`; do ovs-appctl time/warp 500; done
+for i in `seq 0 9`; do ovs-appctl time/warp 500; done
# End of Test-4 ###############################################################
# Test-5 BFD decay: set min_rx to 300ms and decay_min_rx to 5000ms together.
AT_CHECK([ovs-vsctl set Interface p0 bfd:min_rx=300 bfd:decay_min_rx=5000])
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [final], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [poll], [up], [No Diagnostic])
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
done
-ovs-appctl time/warp 500
-# at 5000ms, decay should happen and there should be the poll sequence flags.
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [final], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [poll], [up], [No Diagnostic])
+# advance the clock by 2000ms, decay should have happened.
+for i in `seq 0 3`; do ovs-appctl time/warp 500; done
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [5000ms], [5000ms], [500ms])
# advance the clock, to make 'flag' go back to none.
# Test-6 BFD decay: set decay_min_rx to 0 to disable bfd decay.
AT_CHECK([ovs-vsctl set Interface p0 bfd:decay_min_rx=0])
-# min_rx is reset, and there should be the poll sequence flags.
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [final], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [poll], [up], [No Diagnostic])
+# min_rx is reset.
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
for i in `seq 0 20`
# there will be poll sequences from both sides. and it is hard to determine the
# order. so just skip 10000ms and check the RX/TX. at that time, p0 should be in decay already.
for i in `seq 0 19`; do ovs-appctl time/warp 500; done
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
BFD_CHECK_TX([p0], [500ms], [300ms], [5000ms])
BFD_CHECK_RX([p0], [5000ms], [3000ms], [500ms])
# then, there should be no change of status,
done
# reset the p1's min_tx to 500ms.
AT_CHECK([ovs-vsctl set Interface p1 bfd:min_tx=500])
-# check the poll sequence. since p0 has been in decay, now the RX will show 3000ms.
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [final], [up], [No Diagnostic])
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [poll], [up], [No Diagnostic])
-BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
-BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
-# advance the clock by 3000ms, at that time, p1 will send the control packets.
-# then there will be no poll flags.
-for i in `seq 0 5`; do ovs-appctl time/warp 500; done
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
+# since p0 has been in decay, now the RX will show 3000ms.
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
# End of Test-7 ###############################################################
# turn bfd off on p1
AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false])
-# check the state change of bfd on p0. After 9000 ms (3 min_rx intervals)
-for i in `seq 0 8`; do ovs-appctl time/warp 1000; done
+# check the state change of bfd on p0. After 15000 ms (> 3 min_rx intervals)
+for i in `seq 0 14`; do ovs-appctl time/warp 1000; done
BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
BFD_CHECK_TX([p0], [1000ms], [1000ms], [0ms])
BFD_CHECK_RX([p0], [300ms], [300ms], [1ms])
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
-# since the decay_min_rx is still 3000ms, so after 3000ms, there should be the decay.
-for i in `seq 0 5`; do ovs-appctl time/warp 500; done
+# since the decay_min_rx is still 3000ms, so after 5000ms, p0 should have decayed.
+for i in `seq 0 9`; do ovs-appctl time/warp 500; done
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
# End of Test-8 ################################################################
# receive one packet.
AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
[0], [stdout], [])
-for i in `seq 0 14`
-do
- ovs-appctl time/warp 100
- # the forwarding flag should be true, since there is data received.
- BFD_CHECK([p0], [true], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
- BFD_CHECK_TX([p0], [1000ms], [1000ms], [0ms])
- BFD_CHECK_RX([p0], [500ms], [500ms], [1ms])
-done
+# wait for 1000ms
+for i in `seq 0 14`; do ovs-appctl time/warp 100; done
+# the forwarding flag should turn to true sometime in this 1000ms, since there is data received.
+BFD_CHECK([p0], [true], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
+BFD_CHECK_TX([p0], [1000ms], [1000ms], [0ms])
+BFD_CHECK_RX([p0], [500ms], [500ms], [1ms])
-# Stop sending packets for 1000ms.
-for i in `seq 0 9`; do ovs-appctl time/warp 100; done
+# Stop sending packets for 2000ms.
+for i in `seq 0 19`; do ovs-appctl time/warp 100; done
BFD_CHECK([p0], [false], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
BFD_CHECK_TX([p0], [1000ms], [1000ms], [0ms])
BFD_CHECK_RX([p0], [500ms], [500ms], [1ms])
-# receive packet at 1/100ms rate for 1000ms.
-for i in `seq 0 9`
+# receive packet at 1/100ms rate for 2000ms.
+for i in `seq 0 19`
do
ovs-appctl time/warp 100
AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
do
ovs-appctl time/warp 500
BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
- for i in `seq 0 5`
+ for i in `seq 0 4`
do
AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
[0], [stdout], [])
BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
done
-# reconfigure the decay_min_rx to 1000ms. check the poll sequence.
+# reconfigure the decay_min_rx to 1000ms.
AT_CHECK([ovs-vsctl set interface p0 bfd:decay_min_rx=1000])
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [final], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [poll], [up], [No Diagnostic])
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
-# wait for 2000ms to decay.
-for i in `seq 0 3`; do ovs-appctl time/warp 500; done
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [final], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [poll], [up], [No Diagnostic])
-BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
-BFD_CHECK_RX([p0], [1000ms], [1000ms], [500ms])
-
-# wait for 1000ms, so that the flags will go back to none.
-for i in `seq 0 1`; do ovs-appctl time/warp 500; done
-BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
-BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
+# wait for 5000ms to decay.
+for i in `seq 0 9`; do ovs-appctl time/warp 500; done
BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
BFD_CHECK_RX([p0], [1000ms], [1000ms], [500ms])
# stop the bfd on one side.
AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
-# for within 2500ms, the detection timer is not out.
-# there is no change to status.
-for i in `seq 0 4`
+
+# advance clock by 4000ms, while receiving packets.
+# the STATE should go DOWN, due to Control Detection Time Expired.
+# but forwarding flag should be still true.
+for i in `seq 0 7`
do
ovs-appctl time/warp 500
- BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
[0], [stdout], [])
done
-
-# at 3000ms, the STATE should go DOWN, due to Control Detection Time Expired.
-# but forwarding flag should be still true.
-ovs-appctl time/warp 500
BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
# receive packet at 1/100ms rate for 1000ms.
BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
done
-# stop receiving for 2000ms.
-for i in `seq 0 19`; do ovs-appctl time/warp 100; done
+# stop receiving for 3000ms.
+for i in `seq 0 29`; do ovs-appctl time/warp 100; done
BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
# reset bfd forwarding_if_rx.
# re-enable bfd on the other end. the states should be up.
AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300])
# advance the clock, to stablize the states.
-for i in `seq 0 9`; do ovs-appctl time/warp 500; done
+for i in `seq 0 19`; do ovs-appctl time/warp 500; done
BFD_CHECK([p0], [true], [false], [none], [up], [Control Detection Time Expired], [none], [up], [No Diagnostic])
BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [Control Detection Time Expired])
BFD_CHECK_TX([p0], [300ms], [300ms], [300ms])
BFD_CHECK_RX([p0], [1000ms], [1000ms], [300ms])
AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
+AT_CLEANUP
+
+# test bfd:flap_count.
+AT_SETUP([bfd - flap_count])
+#Create 2 bridges connected by patch ports and enable bfd
+OVS_VSWITCHD_START([add-br br1 -- \
+ set bridge br1 datapath-type=dummy \
+ other-config:hwaddr=aa:55:aa:56:00:00 -- \
+ add-port br1 p1 -- set Interface p1 type=patch \
+ options:peer=p0 ofport_request=2 -- \
+ add-port br0 p0 -- set Interface p0 type=patch \
+ options:peer=p1 ofport_request=1 -- \
+ set Interface p0 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100 -- \
+ set Interface p1 bfd:enable=true bfd:min_tx=100 bfd:min_rx=100])
+
+ovs-appctl time/stop
+
+# Part-1 wait for a while to stablize bfd.
+for i in `seq 0 100`; do ovs-appctl time/warp 100; done
+BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
+BFD_CHECK([p1], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
+BFD_CHECK_TX([p0], [100ms], [100ms], [100ms])
+BFD_CHECK_RX([p0], [100ms], [100ms], [100ms])
+# both p0 and p1 should have flap_count = "1". since down->up.
+BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
+BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
+
+# turn bfd on p1 off, should increment the bfd:flap_count on p0.
+AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
+for i in `seq 0 10`; do ovs-appctl time/warp 100; done
+BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
+BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["2"])
+AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
+
+# turn bfd on p1 on again, should increment the bfd:flap_count on p0.
+# p1 should still have flap_count = "1", since it is reset.
+AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
+for i in `seq 0 10`; do ovs-appctl time/warp 100; done
+BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
+BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
+
+
+# Part-2 now turn on the forwarding_override.
+AT_CHECK([ovs-appctl bfd/set-forwarding p0 true], [0], [dnl
+OK
+])
+
+# turn bfd on p1 off, should not increment the bfd:flap_count on p0, since forwarding_override is on.
+AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
+for i in `seq 0 10`; do ovs-appctl time/warp 100; done
+BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
+BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
+AT_CHECK([ovs-vsctl list interface p1 | sed -n "s/^.*flap_count=\(.*\), forwarding.*$/\1/p"])
+
+# turn bfd on p1 on again, should not increment the bfd:flap_count on p0, since forwarding override is on.
+# p1 should still have flap_count = "1", since it is reset.
+AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
+for i in `seq 0 10`; do ovs-appctl time/warp 100; done
+BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["3"])
+BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
+
+# turn the forwarding_override back to normal.
+AT_CHECK([ovs-appctl bfd/set-forwarding p0 normal], [0], [dnl
+OK
+])
+
+# turn bfd on p1 off and on, should increment the bfd:flap_count on p0.
+AT_CHECK([ovs-vsctl set interface p1 bfd:enable=false])
+for i in `seq 0 10`; do ovs-appctl time/warp 100; done
+AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
+for i in `seq 0 10`; do ovs-appctl time/warp 100; done
+BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["5"])
+BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
+
+# Part-3 now turn on forwarding_if_rx.
+AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
+# disable the bfd on p1.
+AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
+
+# advance clock by 4000ms, while receiving packets.
+# the STATE should go DOWN, due to Control Detection Time Expired.
+# but forwarding flag should be true.
+for i in `seq 0 39`
+do
+ ovs-appctl time/warp 100
+ AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
+ [0], [stdout], [])
+done
+BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
+# flap_count should remain unchanged.
+BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["5"])
+
+# stop the traffic for 4000ms, the forwarding flag of p0 should turn false.
+# and there should be the increment of flap_count.
+for i in `seq 0 7`; do ovs-appctl time/warp 500; done
+BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
+BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["6"])
+
+# advance clock by 4000ms, and resume the traffic.
+for i in `seq 0 39`
+do
+ ovs-appctl time/warp 100
+ AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
+ [0], [stdout], [])
+done
+BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
+# flap_count should be incremented again.
+BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["7"])
+
+# stop the traffic for 4000ms, the forwarding flag of p0 should turn false.
+# and there should be the increment of flap_count.
+for i in `seq 0 7`; do ovs-appctl time/warp 500; done
+BFD_CHECK([p0], [false], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
+BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["8"])
+
+# turn on the bfd on p1.
+AT_CHECK([ovs-vsctl set interface p1 bfd:enable=true])
+for i in `seq 0 10`; do ovs-appctl time/warp 100; done
+# even though there is no data traffic, since p1 bfd is on again, should increment the flap_count.
+BFD_VSCTL_LIST_IFACE([p0], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["9"])
+BFD_VSCTL_LIST_IFACE([p1], ["s/^.*flap_count=\(.*\), forwarding.*$/\1/p"], ["1"])
+
+OVS_VSWITCHD_STOP
AT_CLEANUP
\ No newline at end of file
git://git.onelab.eu / sliver-openvswitch.git / blobdiff