[ONOS-7281] Using slow protocol destination mac address (01:80:C2:00:00:0E), and supporting port description in ONOS LLDP

Change-Id: I98dfbad436da0b689a2ac89665ee3298c32b61e8
diff --git a/utils/misc/src/main/java/org/onlab/packet/MacAddress.java b/utils/misc/src/main/java/org/onlab/packet/MacAddress.java
index b048794..8a6d918 100644
--- a/utils/misc/src/main/java/org/onlab/packet/MacAddress.java
+++ b/utils/misc/src/main/java/org/onlab/packet/MacAddress.java
@@ -36,9 +36,9 @@
      */
     public static final MacAddress NONE = ONOS;
     /**
-     * ONOS LLDP MAC address with multicast bit set.
+     * ONOS LLDP MAC address with slow protocol destination address.
      */
-    public static final MacAddress ONOS_LLDP = valueOf("a5:23:05:00:00:01");
+    public static final MacAddress ONOS_LLDP = valueOf("01:80:C2:00:00:0E");
     /**
      * All-zero MAC address.
      */