diff --git a/ponsim/main.py b/ponsim/main.py
index 3e32d3a..16ddfac 100755
--- a/ponsim/main.py
+++ b/ponsim/main.py
@@ -178,7 +178,7 @@
         self.teardown_networking_assets(self.args.name, self.args.onus)
         if self.grpc_server is not None:
             yield self.grpc_server.stop()
-        
+
     def start_reactor(self):
         from twisted.internet import reactor
         reactor.callWhenRunning(
diff --git a/ponsim/realio.py b/ponsim/realio.py
index 4e467f8..77fa770 100644
--- a/ponsim/realio.py
+++ b/ponsim/realio.py
@@ -51,7 +51,7 @@
             yield self.frame_io.stop()
             log.info('stopped')
         except Exception, e:
-            log.info('exception: %r' % e)
+            pass
 
     def register_ponsim(self, ponsim):
         self.ponsim = ponsim