diff --git a/providers/netcfglinks/src/main/java/org/onosproject/provider/netcfglinks/OsgiPropertyConstants.java b/providers/netcfglinks/src/main/java/org/onosproject/provider/netcfglinks/OsgiPropertyConstants.java
index c04dedb..5d718ed 100644
--- a/providers/netcfglinks/src/main/java/org/onosproject/provider/netcfglinks/OsgiPropertyConstants.java
+++ b/providers/netcfglinks/src/main/java/org/onosproject/provider/netcfglinks/OsgiPropertyConstants.java
@@ -26,4 +26,7 @@
     public static final String PROP_PROBE_RATE = "probeRate";
     public static final int PROBE_RATE_DEFAULT = 3000;
 
+    public static final String PROP_DISCOVERY_DELAY = "maxLLDPAge";
+    public static final int DISCOVERY_DELAY_DEFAULT = 1000;
+
 }