[VOL-4246] Feature parity with the previous implementation

Change-Id: I3741edb3c1b88b1cf8b5e6d4ff0900132e2e5e6a
diff --git a/impl/src/main/java/org/opencord/olt/cli/ShowOltCommand.java b/impl/src/main/java/org/opencord/olt/cli/ShowOltCommand.java
index 08aaa48..c379116 100644
--- a/impl/src/main/java/org/opencord/olt/cli/ShowOltCommand.java
+++ b/impl/src/main/java/org/opencord/olt/cli/ShowOltCommand.java
@@ -40,9 +40,9 @@
     protected void doExecute() {
         AccessDeviceService service = AbstractShellCommand.get(AccessDeviceService.class);
         if (outputJson()) {
-            print("%s", json(service.fetchOlts()));
+            print("%s", json(service.getConnectedOlts()));
         } else {
-            service.fetchOlts().forEach(did -> print("OLT %s", did));
+            service.getConnectedOlts().forEach(did -> print("OLT %s", did));
         }
 
     }
@@ -62,4 +62,4 @@
         }
         return node;
     }
-}
+}
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