diff --git a/src/service/service/ServiceServiceServicerImpl.py b/src/service/service/ServiceServiceServicerImpl.py
index 992b11cf3edaaed8211cd70a08452cd091cdf19a..14b7c88295ab20680a1e7e92fb9972a012f75924 100644
--- a/src/service/service/ServiceServiceServicerImpl.py
+++ b/src/service/service/ServiceServiceServicerImpl.py
@@ -288,6 +288,7 @@ class ServiceServiceServicerImpl(ServiceServiceServicer):
 
             # reply with 2 transponders and 2 roadms
             reply_json = json.loads(reply_txt)
+            LOGGER.warning('reply_json[{:s}]={:s}'.format(str(type(reply_json)), str(reply_json)))
             optical_band_txt = ""
             if "new_optical_band" in reply_json.keys():
                 if reply_json["new_optical_band"] == 1: