m4_define([BFD_CHECK_TX], [
AT_CHECK([ovs-appctl bfd/show $1 | sed -n '/TX Interval/p'],[0],
[dnl
- TX Interval: Approx 1000ms
- Local Minimum TX Interval: $2
- Remote Minimum TX Interval: $3
+ TX Interval: Approx $2
+ Local Minimum TX Interval: $3
+ Remote Minimum TX Interval: $4
])
])
AT_CHECK([ovs-appctl bfd/show $1 | sed -n '/RX Interval/p'],[0],
[dnl
RX Interval: Approx $2
- Local Minimum RX Interval: $2
- Remote Minimum RX Interval: $3
+ Local Minimum RX Interval: $3
+ 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(
#Edit the min Tx value.
AT_CHECK([ovs-vsctl set interface p0 bfd:min_tx=200])
for i in `seq 0 20`; do ovs-appctl time/warp 100; done
-BFD_CHECK_TX([p0], [200ms], [100ms])
-BFD_CHECK_TX([p1], [100ms], [200ms])
+BFD_CHECK_TX([p0], [1000ms], [200ms], [100ms])
+BFD_CHECK_TX([p1], [1000ms], [100ms], [200ms])
#Edit the min Rx value.
AT_CHECK([ovs-vsctl set interface p1 bfd:min_rx=300])
for i in `seq 0 20`; do ovs-appctl time/warp 100; done
-BFD_CHECK_RX([p1], [300ms], [1000ms])
-BFD_CHECK_RX([p0], [1000ms], [300ms])
+BFD_CHECK_RX([p1], [300ms], [300ms], [1000ms])
+BFD_CHECK_RX([p0], [1000ms], [1000ms], [300ms])
OVS_VSWITCHD_STOP
AT_CLEANUP
OVS_VSWITCHD_STOP
AT_CLEANUP
+
+# Tests below are for bfd decay features.
+AT_SETUP([bfd - bfd decay])
+OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
+ 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=300 bfd:min_rx=300 -- \
+ set Interface p1 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500])
+
+ovs-appctl time/stop
+
+# 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([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
+BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
+BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
+
+# 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])
+
+# the rx_min of p0 is 3000ms now, and p1 will send next control message
+# 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 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.
+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 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])
+
+# advance the clock, to make 'flag' go back to none.
+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])
+
+# change decay_min_rx to 1000ms.
+# for decay_min_rx < 2000ms, the decay detection time is set to 2000ms.
+# this should reset the min_rx.
+AT_CHECK([ovs-vsctl set Interface p0 bfd:decay_min_rx=1000])
+BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
+BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
+
+# for the following 1500ms, there should be no decay,
+# since the decay_detect_time is set to 2000ms.
+for i in `seq 0 2`
+do
+ 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])
+ BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
+ BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
+done
+
+# 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 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_TX([p0], [500ms], [300ms], [500ms])
+BFD_CHECK_RX([p0], [800ms], [800ms], [500ms])
+
+# for the following 1600ms, there should be no decay,
+# since the decay detection time is set to 2000ms.
+for i in `seq 0 1`
+do
+ ovs-appctl time/warp 800
+ 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], [800ms], [800ms], [500ms])
+done
+
+# 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 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_TX([p0], [500ms], [300ms], [500ms])
+BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
+
+# for decay_min_rx > 2000ms, the decay detection time is set to
+# decay_min_rx (5000ms).
+# for the following 4500ms, there should be no decay,
+# since the decay detection time is set to 5000ms.
+for i in `seq 0 8`
+do
+ 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])
+ BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
+ BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
+done
+
+# 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.
+for i in `seq 0 9`; do ovs-appctl time/warp 500; done
+# End of Test-5 ###############################################################
+
+
+# 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.
+BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
+BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
+for i in `seq 0 20`
+do
+ 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])
+ BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
+ BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
+done
+# End of Test-6 ################################################################
+
+
+# Test-7 BFD decay: rmt_min_tx is greater than decay_min_rx
+AT_CHECK([ovs-vsctl set Interface p0 bfd:decay_min_rx=3000 -- set interface p1 bfd:min_tx=5000])
+# 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_TX([p0], [500ms], [300ms], [5000ms])
+BFD_CHECK_RX([p0], [5000ms], [3000ms], [500ms])
+# then, there should be no change of status,
+for i in `seq 0 9`
+do
+ 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])
+ BFD_CHECK_TX([p0], [500ms], [300ms], [5000ms])
+ BFD_CHECK_RX([p0], [5000ms], [3000ms], [500ms])
+done
+# reset the p1's min_tx to 500ms.
+AT_CHECK([ovs-vsctl set Interface p1 bfd:min_tx=500])
+# 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 ###############################################################
+
+
+# Test-8 BFD decay: state up->down->up.
+# turn bfd off on p1
+AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false])
+
+# 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])
+
+# resume the bfd on p1. the bfd should not go to decay mode direclty.
+AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=true])
+for i in `seq 0 3`; do ovs-appctl time/warp 500; done
+BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
+BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
+
+# 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 ################################################################
+
+OVS_VSWITCHD_STOP
+AT_CLEANUP
+
+# Tests below are for bfd forwarding_if_rx feature.
+# forwarding_if_rx Test1: bfd is enabled on one end of link.
+AT_SETUP([bfd - bfd forwarding_if_rx 1])
+OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
+ 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=500 bfd:min_rx=500 -- \
+ add-port br1 p2 -- set Interface p2 type=internal ofport_request=3])
+
+ovs-appctl time/stop
+# check the inital status.
+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])
+
+# enable forwarding_if_rx.
+AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
+
+# there should be no change of forwarding flag, since
+# there is no traffic.
+for i in `seq 0 3`
+do
+ ovs-appctl time/warp 500
+ BFD_CHECK([p0], [false], [false], [none], [down], [No Diagnostic], [none], [down], [No Diagnostic])
+done
+
+# receive one packet.
+AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
+ [0], [stdout], [])
+# 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 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 2000ms.
+for i in `seq 0 19`
+do
+ ovs-appctl time/warp 100
+ AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
+ [0], [stdout], [])
+done
+# 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])
+
+# reset bfd forwarding_if_rx.
+AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=false], [0])
+# forwarding flag should turn to false since the STATE is DOWN.
+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])
+
+AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
+AT_CLEANUP
+
+# forwarding_if_rx Test2: bfd is enabled on both ends of link.
+AT_SETUP([bfd - bfd forwarding_if_rx 2])
+OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
+ 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=500 bfd:min_rx=500 -- \
+ set Interface p1 bfd:enable=true bfd:min_tx=300 bfd:min_rx=300 -- \
+ add-port br1 p2 -- set Interface p2 type=internal ofport_request=3])
+
+ovs-appctl time/stop
+# advance the clock, to stablize the states.
+for i in `seq 0 9`; do ovs-appctl time/warp 500; done
+
+# enable forwarding_if_rx.
+AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
+
+# there should be no change of the forwarding flag, since
+# the bfd on both ends is already up.
+for i in `seq 0 5`
+do
+ ovs-appctl time/warp 500
+ BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
+done
+
+# stop the bfd on one side.
+AT_CHECK([ovs-vsctl set Interface p1 bfd:enable=false], [0])
+# for within 1500ms, the detection timer is not out.
+# there is no change to status.
+for i in `seq 0 1`
+do
+ ovs-appctl time/warp 500
+ BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
+ for i in `seq 0 4`
+ do
+ AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
+ [0], [stdout], [])
+ done
+done
+
+# at 1500ms, 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.
+for i in `seq 0 9`
+do
+ AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
+ [0], [stdout], [])
+ ovs-appctl time/warp 100
+ # the forwarding flag should always be true during this time.
+ BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
+done
+
+# reset bfd forwarding_if_rx.
+AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=false], [0])
+# forwarding flag should turn to false since the STATE is DOWN.
+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], [500ms], [500ms], [1ms])
+
+# 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
+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], [500ms], [500ms], [300ms])
+BFD_CHECK_RX([p0], [500ms], [500ms], [300ms])
+
+AT_CHECK([ovs-vsctl del-br br1], [0], [ignore])
+AT_CLEANUP
+
+# forwarding_if_rx Test3: bfd is enabled on both ends of link and decay is enabled.
+AT_SETUP([bfd - bfd forwarding_if_rx 3])
+OVS_VSWITCHD_START([add-br br1 -- set bridge br1 datapath-type=dummy -- \
+ 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=300 bfd:min_rx=300 bfd:decay_min_rx=3000 -- \
+ set Interface p1 bfd:enable=true bfd:min_tx=500 bfd:min_rx=500])
+
+ovs-appctl time/stop
+# advance the clock, to stablize the states.
+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], [500ms])
+BFD_CHECK_RX([p0], [3000ms], [3000ms], [500ms])
+
+# enable forwarding_if_rx.
+AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true], [0])
+
+# there should be no change of the forwarding flag, since
+# the bfd on both ends is already up.
+for i in `seq 0 9`
+do
+ ovs-appctl time/warp 500
+ BFD_CHECK([p0], [true], [false], [none], [up], [No Diagnostic], [none], [up], [No Diagnostic])
+done
+
+# reconfigure the decay_min_rx to 1000ms.
+AT_CHECK([ovs-vsctl set interface p0 bfd:decay_min_rx=1000])
+BFD_CHECK_TX([p0], [500ms], [300ms], [500ms])
+BFD_CHECK_RX([p0], [500ms], [300ms], [500ms])
+
+# 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])
+
+# 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
+ 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])
+
+# receive packet at 1/100ms rate for 1000ms.
+for i in `seq 0 9`
+do
+ AT_CHECK([ovs-ofctl packet-out br1 3 2 "90e2ba01475000101856b2e80806000108000604000100101856b2e80202020300000000000002020202"],
+ [0], [stdout], [])
+ ovs-appctl time/warp 100
+ # the forwarding flag should always be true during this time.
+ BFD_CHECK([p0], [true], [false], [none], [down], [Control Detection Time Expired], [none], [down], [No Diagnostic])
+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.
+AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=false])
+# forwarding flag should turn to false since the STATE is DOWN.
+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])
+
+# re-enable bfd forwarding_if_rx.
+AT_CHECK([ovs-vsctl set Interface p0 bfd:forwarding_if_rx=true])
+# there should be no change.
+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])
+
+# 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 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