diff --git a/core/api/src/main/java/org/onlab/onos/net/flow/instructions/Instructions.java b/core/api/src/main/java/org/onlab/onos/net/flow/instructions/Instructions.java
index 894942c..439db77 100644
--- a/core/api/src/main/java/org/onlab/onos/net/flow/instructions/Instructions.java
+++ b/core/api/src/main/java/org/onlab/onos/net/flow/instructions/Instructions.java
@@ -7,9 +7,10 @@
 import org.onlab.onos.net.flow.instructions.L2ModificationInstruction.ModEtherInstruction;
 import org.onlab.onos.net.flow.instructions.L3ModificationInstruction.L3SubType;
 import org.onlab.onos.net.flow.instructions.L3ModificationInstruction.ModIPInstruction;
-import org.onlab.packet.IPAddress;
-import org.onlab.packet.MACAddress;
-import org.onlab.packet.VLANID;
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.MacAddress;
+import org.onlab.packet.VlanId;
+
 /**
  * Factory class for creating various traffic treatment instructions.
  */
@@ -44,7 +45,7 @@
      * @param addr the mac address to modify to.
      * @return a l2 modification
      */
-    public static L2ModificationInstruction modL2Src(MACAddress addr) {
+    public static L2ModificationInstruction modL2Src(MacAddress addr) {
         checkNotNull(addr, "Src l2 address cannot be null");
         return new ModEtherInstruction(L2SubType.L2_SRC, addr);
     }
@@ -54,7 +55,7 @@
      * @param addr the mac address to modify to.
      * @return a L2 modification
      */
-    public static L2ModificationInstruction modL2Dst(MACAddress addr) {
+    public static L2ModificationInstruction modL2Dst(MacAddress addr) {
         checkNotNull(addr, "Dst l2 address cannot be null");
         return new L2ModificationInstruction.ModEtherInstruction(L2SubType.L2_DST, addr);
     }
@@ -64,7 +65,7 @@
      * @param vlanId the vlan id to modify to.
      * @return a L2 modification
      */
-    public static L2ModificationInstruction modVlanId(VLANID vlanId) {
+    public static L2ModificationInstruction modVlanId(VlanId vlanId) {
         checkNotNull(vlanId, "VLAN id cannot be null");
         return new L2ModificationInstruction.ModVlanIdInstruction(vlanId);
     }
@@ -84,7 +85,7 @@
      * @param addr the ip address to modify to.
      * @return a L3 modification
      */
-    public static L3ModificationInstruction modL3Src(IPAddress addr) {
+    public static L3ModificationInstruction modL3Src(IpAddress addr) {
         checkNotNull(addr, "Src l3 address cannot be null");
         return new ModIPInstruction(L3SubType.L3_SRC, addr);
     }
@@ -94,7 +95,7 @@
      * @param addr the ip address to modify to.
      * @return a L3 modification
      */
-    public static L3ModificationInstruction modL3Dst(IPAddress addr) {
+    public static L3ModificationInstruction modL3Dst(IpAddress addr) {
         checkNotNull(addr, "Dst l3 address cannot be null");
         return new ModIPInstruction(L3SubType.L3_DST, addr);
     }
diff --git a/core/api/src/main/java/org/onlab/onos/net/flow/instructions/L2ModificationInstruction.java b/core/api/src/main/java/org/onlab/onos/net/flow/instructions/L2ModificationInstruction.java
index 9019efb..78eaaa9 100644
--- a/core/api/src/main/java/org/onlab/onos/net/flow/instructions/L2ModificationInstruction.java
+++ b/core/api/src/main/java/org/onlab/onos/net/flow/instructions/L2ModificationInstruction.java
@@ -1,7 +1,7 @@
 package org.onlab.onos.net.flow.instructions;
 
-import org.onlab.packet.MACAddress;
-import org.onlab.packet.VLANID;
+import org.onlab.packet.MacAddress;
+import org.onlab.packet.VlanId;
 
 /**
  * Abstraction of a single traffic treatment step.
@@ -50,9 +50,10 @@
     public static final class ModEtherInstruction extends L2ModificationInstruction {
 
         private final L2SubType subtype;
-        private final MACAddress mac;
+        private final MacAddress mac;
 
-        public ModEtherInstruction(L2SubType subType, MACAddress addr) {
+        public ModEtherInstruction(L2SubType subType, MacAddress addr) {
+
             this.subtype = subType;
             this.mac = addr;
         }
@@ -62,7 +63,7 @@
             return this.subtype;
         }
 
-        public MACAddress mac() {
+        public MacAddress mac() {
             return this.mac;
         }
 
@@ -73,9 +74,9 @@
      */
     public static final class ModVlanIdInstruction extends L2ModificationInstruction {
 
-        public final VLANID vlanId;
+        public final VlanId vlanId;
 
-        public ModVlanIdInstruction(VLANID vlanId) {
+        public ModVlanIdInstruction(VlanId vlanId) {
             this.vlanId = vlanId;
         }
 
@@ -84,7 +85,7 @@
             return L2SubType.VLAN_ID;
         }
 
-        public VLANID vlanId() {
+        public VlanId vlanId() {
             return this.vlanId;
         }
 
diff --git a/core/api/src/main/java/org/onlab/onos/net/flow/instructions/L3ModificationInstruction.java b/core/api/src/main/java/org/onlab/onos/net/flow/instructions/L3ModificationInstruction.java
index c5cb7a6..cf25f10 100644
--- a/core/api/src/main/java/org/onlab/onos/net/flow/instructions/L3ModificationInstruction.java
+++ b/core/api/src/main/java/org/onlab/onos/net/flow/instructions/L3ModificationInstruction.java
@@ -1,6 +1,6 @@
 package org.onlab.onos.net.flow.instructions;
 
-import org.onlab.packet.IPAddress;
+import org.onlab.packet.IpAddress;
 
 /**
  * Abstraction of a single traffic treatment step.
@@ -42,9 +42,10 @@
     public static final class ModIPInstruction extends L3ModificationInstruction {
 
         private final L3SubType subtype;
-        private final IPAddress ip;
+        private final IpAddress ip;
 
-        public ModIPInstruction(L3SubType subType, IPAddress addr) {
+        public ModIPInstruction(L3SubType subType, IpAddress addr) {
+
             this.subtype = subType;
             this.ip = addr;
         }
@@ -54,7 +55,7 @@
             return this.subtype;
         }
 
-        public IPAddress ip() {
+        public IpAddress ip() {
             return this.ip;
         }