[VOL-4133] Checking that the OLT is listed as unavailable in ONOS during a reboot cycle

Change-Id: I9dd76497f9136743ad2b6577fe4c5a4e45ecd4f8
diff --git a/tests/bbsim/Voltha_BBSimTests.robot b/tests/bbsim/Voltha_BBSimTests.robot
index 4e94976..567a4bc 100644
--- a/tests/bbsim/Voltha_BBSimTests.robot
+++ b/tests/bbsim/Voltha_BBSimTests.robot
@@ -163,6 +163,8 @@
     # Perform OLT SoftReboot test
     ${olt_device_id}=    Get OLTDeviceID From OLT List    ${olt_serial_number}
     Reboot Device    ${olt_device_id}
+    Wait Until Keyword Succeeds    ${timeout}    2s    Device Is Available In ONOS
+        ...    http://karaf:karaf@${ONOS_REST_IP}:${ONOS_REST_PORT}    ${of_id}     false
     Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    360s    5s
     ...    Validate OLT Device    ENABLED    ACTIVE
     ...    REACHABLE    ${olt_serial_number}