+m4_define([CFM_CHECK_DB], [
+CFM_VSCTL_LIST_IFACE([$1], [cfm_fault], [cfm_fault : $2])
+CFM_VSCTL_LIST_IFACE([$1], [cfm_fault_status], [cfm_fault_status : [[$3]]])
+CFM_VSCTL_LIST_IFACE([$1], [cfm_flap_count], [cfm_flap_count : $4])
+CFM_VSCTL_LIST_IFACE([$1], [cfm_health], [cfm_health : [[$5]]])
+CFM_VSCTL_LIST_IFACE([$1], [cfm_remote_mpids], [cfm_remote_mpids : [[$6]]])
+CFM_VSCTL_LIST_IFACE([$1], [cfm_remote_opstate], [cfm_remote_opstate : $7])
+])
+
+# These two tests check the update of cfm status at different scenarios.
+
+# Test cfm status update at startup and removal.
+AT_SETUP([cfm - check update ovsdb 1])
+OVS_VSWITCHD_START([add-port br0 p0 -- set Interface p0 type=gre \
+ options:remote_ip=1.2.3.4 -- \
+ set Interface p0 other_config:cfm_interval=300 other_config:cfm_extended=true])
+
+ovs-appctl time/stop
+
+AT_CHECK([ovs-vsctl set Interface p0 cfm_mpid=1])
+# at beginning, since the first fault check timeout is not reached
+# cfm_fault should be false.
+for i in `seq 0 4`; do
+ ovs-appctl time/warp 100
+ CFM_CHECK_DB([p0], [false], [], [0], [], [], [up])
+done
+
+# advance clock to pass the fault check timeout and check cfm
+# status update in OVSDB.
+ovs-appctl time/warp 1500 100
+CFM_CHECK_DB([p0], [true], [recv], [1], [], [], [up])
+
+# remove the cfm on p0 and status should be all empty.
+AT_CHECK([ovs-vsctl remove int p0 cfm_mpid 1])
+ovs-appctl time/warp 500 100
+CFM_CHECK_DB([p0], [[[]]], [], [[[]]], [], [], [[[]]])
+
+OVS_VSWITCHD_STOP
+AT_CLEANUP
+
+# Test cfm status update in normal case.
+AT_SETUP([cfm - check update ovsdb 2])
+#Create 2 bridges connected by patch ports and enable cfm
+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 -- \
+ add-port br0 p0 -- set Interface p0 type=patch \
+ options:peer=p1 -- \
+ set Interface p0 other_config:cfm_interval=300 other_config:cfm_extended=true -- \
+ set Interface p1 other_config:cfm_interval=300 other_config:cfm_extended=true])
+
+ovs-appctl time/stop
+
+AT_CHECK([ovs-vsctl set Interface p0 cfm_mpid=1])
+# check cfm status update in OVSDB.
+ovs-appctl time/warp 1500 100
+CFM_CHECK_DB([p0], [true], [recv], [1], [], [], [up])
+
+# turn cfm on p1 on, cfm status of p0 and p1 should all go up.
+AT_CHECK([ovs-vsctl set interface p1 cfm_mpid=2])
+ovs-appctl time/warp 1500 100
+CFM_CHECK_DB([p0], [false], [], [2], [], [2], [up])
+CFM_CHECK_DB([p1], [false], [], [0], [], [1], [up])
+
+# turn cfm on p1 off, cfm status of p0 should go down again.
+AT_CHECK([ovs-vsctl remove int p1 cfm_mpid 2])
+ovs-appctl time/warp 1500 100
+CFM_CHECK_DB([p0], [true], [recv], [3], [], [], [up])
+
+OVS_VSWITCHD_STOP
+AT_CLEANUP
+