diff --git a/of/lib/gen-src/main/java/org/projectfloodlight/openflow/protocol/ver12/OFFlowModifyStrictVer12.java b/of/lib/gen-src/main/java/org/projectfloodlight/openflow/protocol/ver12/OFFlowModifyStrictVer12.java
new file mode 100644
index 0000000..1040469
--- /dev/null
+++ b/of/lib/gen-src/main/java/org/projectfloodlight/openflow/protocol/ver12/OFFlowModifyStrictVer12.java
@@ -0,0 +1,954 @@
+// Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior University
+// Copyright (c) 2011, 2012 Open Networking Foundation
+// Copyright (c) 2012, 2013 Big Switch Networks, Inc.
+// This library was generated by the LoxiGen Compiler.
+// See the file LICENSE.txt which should have been included in the source distribution
+
+// Automatically generated by LOXI from template of_class.java
+// Do not modify
+
+package org.projectfloodlight.openflow.protocol.ver12;
+
+import org.projectfloodlight.openflow.protocol.*;
+import org.projectfloodlight.openflow.protocol.action.*;
+import org.projectfloodlight.openflow.protocol.actionid.*;
+import org.projectfloodlight.openflow.protocol.bsntlv.*;
+import org.projectfloodlight.openflow.protocol.errormsg.*;
+import org.projectfloodlight.openflow.protocol.meterband.*;
+import org.projectfloodlight.openflow.protocol.instruction.*;
+import org.projectfloodlight.openflow.protocol.instructionid.*;
+import org.projectfloodlight.openflow.protocol.match.*;
+import org.projectfloodlight.openflow.protocol.oxm.*;
+import org.projectfloodlight.openflow.protocol.queueprop.*;
+import org.projectfloodlight.openflow.types.*;
+import org.projectfloodlight.openflow.util.*;
+import org.projectfloodlight.openflow.exceptions.*;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import java.util.Set;
+import com.google.common.collect.ImmutableSet;
+import java.util.List;
+import com.google.common.collect.ImmutableList;
+import org.jboss.netty.buffer.ChannelBuffer;
+import com.google.common.hash.PrimitiveSink;
+import com.google.common.hash.Funnel;
+
+class OFFlowModifyStrictVer12 implements OFFlowModifyStrict {
+    private static final Logger logger = LoggerFactory.getLogger(OFFlowModifyStrictVer12.class);
+    // version: 1.2
+    final static byte WIRE_VERSION = 3;
+    final static int MINIMUM_LENGTH = 56;
+
+        private final static long DEFAULT_XID = 0x0L;
+        private final static U64 DEFAULT_COOKIE = U64.ZERO;
+        private final static U64 DEFAULT_COOKIE_MASK = U64.ZERO;
+        private final static TableId DEFAULT_TABLE_ID = TableId.ZERO;
+        private final static int DEFAULT_IDLE_TIMEOUT = 0x0;
+        private final static int DEFAULT_HARD_TIMEOUT = 0x0;
+        private final static int DEFAULT_PRIORITY = 0x0;
+        private final static OFBufferId DEFAULT_BUFFER_ID = OFBufferId.NO_BUFFER;
+        private final static OFPort DEFAULT_OUT_PORT = OFPort.ANY;
+        private final static OFGroup DEFAULT_OUT_GROUP = OFGroup.ANY;
+        private final static Set<OFFlowModFlags> DEFAULT_FLAGS = ImmutableSet.<OFFlowModFlags>of();
+        private final static Match DEFAULT_MATCH = OFFactoryVer12.MATCH_WILDCARD_ALL;
+        private final static List<OFInstruction> DEFAULT_INSTRUCTIONS = ImmutableList.<OFInstruction>of();
+
+    // OF message fields
+    private final long xid;
+    private final U64 cookie;
+    private final U64 cookieMask;
+    private final TableId tableId;
+    private final int idleTimeout;
+    private final int hardTimeout;
+    private final int priority;
+    private final OFBufferId bufferId;
+    private final OFPort outPort;
+    private final OFGroup outGroup;
+    private final Set<OFFlowModFlags> flags;
+    private final Match match;
+    private final List<OFInstruction> instructions;
+//
+    // Immutable default instance
+    final static OFFlowModifyStrictVer12 DEFAULT = new OFFlowModifyStrictVer12(
+        DEFAULT_XID, DEFAULT_COOKIE, DEFAULT_COOKIE_MASK, DEFAULT_TABLE_ID, DEFAULT_IDLE_TIMEOUT, DEFAULT_HARD_TIMEOUT, DEFAULT_PRIORITY, DEFAULT_BUFFER_ID, DEFAULT_OUT_PORT, DEFAULT_OUT_GROUP, DEFAULT_FLAGS, DEFAULT_MATCH, DEFAULT_INSTRUCTIONS
+    );
+
+    // package private constructor - used by readers, builders, and factory
+    OFFlowModifyStrictVer12(long xid, U64 cookie, U64 cookieMask, TableId tableId, int idleTimeout, int hardTimeout, int priority, OFBufferId bufferId, OFPort outPort, OFGroup outGroup, Set<OFFlowModFlags> flags, Match match, List<OFInstruction> instructions) {
+        this.xid = xid;
+        this.cookie = cookie;
+        this.cookieMask = cookieMask;
+        this.tableId = tableId;
+        this.idleTimeout = idleTimeout;
+        this.hardTimeout = hardTimeout;
+        this.priority = priority;
+        this.bufferId = bufferId;
+        this.outPort = outPort;
+        this.outGroup = outGroup;
+        this.flags = flags;
+        this.match = match;
+        this.instructions = instructions;
+    }
+
+    // Accessors for OF message fields
+    @Override
+    public OFVersion getVersion() {
+        return OFVersion.OF_12;
+    }
+
+    @Override
+    public OFType getType() {
+        return OFType.FLOW_MOD;
+    }
+
+    @Override
+    public long getXid() {
+        return xid;
+    }
+
+    @Override
+    public U64 getCookie() {
+        return cookie;
+    }
+
+    @Override
+    public U64 getCookieMask() {
+        return cookieMask;
+    }
+
+    @Override
+    public TableId getTableId() {
+        return tableId;
+    }
+
+    @Override
+    public OFFlowModCommand getCommand() {
+        return OFFlowModCommand.MODIFY_STRICT;
+    }
+
+    @Override
+    public int getIdleTimeout() {
+        return idleTimeout;
+    }
+
+    @Override
+    public int getHardTimeout() {
+        return hardTimeout;
+    }
+
+    @Override
+    public int getPriority() {
+        return priority;
+    }
+
+    @Override
+    public OFBufferId getBufferId() {
+        return bufferId;
+    }
+
+    @Override
+    public OFPort getOutPort() {
+        return outPort;
+    }
+
+    @Override
+    public OFGroup getOutGroup() {
+        return outGroup;
+    }
+
+    @Override
+    public Set<OFFlowModFlags> getFlags() {
+        return flags;
+    }
+
+    @Override
+    public Match getMatch() {
+        return match;
+    }
+
+    @Override
+    public List<OFInstruction> getInstructions() {
+        return instructions;
+    }
+
+    @Override
+    public List<OFAction> getActions()throws UnsupportedOperationException {
+        throw new UnsupportedOperationException("Property actions not supported in version 1.2");
+    }
+
+
+
+    public OFFlowModifyStrict.Builder createBuilder() {
+        return new BuilderWithParent(this);
+    }
+
+    static class BuilderWithParent implements OFFlowModifyStrict.Builder {
+        final OFFlowModifyStrictVer12 parentMessage;
+
+        // OF message fields
+        private boolean xidSet;
+        private long xid;
+        private boolean cookieSet;
+        private U64 cookie;
+        private boolean cookieMaskSet;
+        private U64 cookieMask;
+        private boolean tableIdSet;
+        private TableId tableId;
+        private boolean idleTimeoutSet;
+        private int idleTimeout;
+        private boolean hardTimeoutSet;
+        private int hardTimeout;
+        private boolean prioritySet;
+        private int priority;
+        private boolean bufferIdSet;
+        private OFBufferId bufferId;
+        private boolean outPortSet;
+        private OFPort outPort;
+        private boolean outGroupSet;
+        private OFGroup outGroup;
+        private boolean flagsSet;
+        private Set<OFFlowModFlags> flags;
+        private boolean matchSet;
+        private Match match;
+        private boolean instructionsSet;
+        private List<OFInstruction> instructions;
+
+        BuilderWithParent(OFFlowModifyStrictVer12 parentMessage) {
+            this.parentMessage = parentMessage;
+        }
+
+    @Override
+    public OFVersion getVersion() {
+        return OFVersion.OF_12;
+    }
+
+    @Override
+    public OFType getType() {
+        return OFType.FLOW_MOD;
+    }
+
+    @Override
+    public long getXid() {
+        return xid;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setXid(long xid) {
+        this.xid = xid;
+        this.xidSet = true;
+        return this;
+    }
+    @Override
+    public U64 getCookie() {
+        return cookie;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setCookie(U64 cookie) {
+        this.cookie = cookie;
+        this.cookieSet = true;
+        return this;
+    }
+    @Override
+    public U64 getCookieMask() {
+        return cookieMask;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setCookieMask(U64 cookieMask) {
+        this.cookieMask = cookieMask;
+        this.cookieMaskSet = true;
+        return this;
+    }
+    @Override
+    public TableId getTableId() {
+        return tableId;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setTableId(TableId tableId) {
+        this.tableId = tableId;
+        this.tableIdSet = true;
+        return this;
+    }
+    @Override
+    public OFFlowModCommand getCommand() {
+        return OFFlowModCommand.MODIFY_STRICT;
+    }
+
+    @Override
+    public int getIdleTimeout() {
+        return idleTimeout;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setIdleTimeout(int idleTimeout) {
+        this.idleTimeout = idleTimeout;
+        this.idleTimeoutSet = true;
+        return this;
+    }
+    @Override
+    public int getHardTimeout() {
+        return hardTimeout;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setHardTimeout(int hardTimeout) {
+        this.hardTimeout = hardTimeout;
+        this.hardTimeoutSet = true;
+        return this;
+    }
+    @Override
+    public int getPriority() {
+        return priority;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setPriority(int priority) {
+        this.priority = priority;
+        this.prioritySet = true;
+        return this;
+    }
+    @Override
+    public OFBufferId getBufferId() {
+        return bufferId;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setBufferId(OFBufferId bufferId) {
+        this.bufferId = bufferId;
+        this.bufferIdSet = true;
+        return this;
+    }
+    @Override
+    public OFPort getOutPort() {
+        return outPort;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setOutPort(OFPort outPort) {
+        this.outPort = outPort;
+        this.outPortSet = true;
+        return this;
+    }
+    @Override
+    public OFGroup getOutGroup() {
+        return outGroup;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setOutGroup(OFGroup outGroup) {
+        this.outGroup = outGroup;
+        this.outGroupSet = true;
+        return this;
+    }
+    @Override
+    public Set<OFFlowModFlags> getFlags() {
+        return flags;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setFlags(Set<OFFlowModFlags> flags) {
+        this.flags = flags;
+        this.flagsSet = true;
+        return this;
+    }
+    @Override
+    public Match getMatch() {
+        return match;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setMatch(Match match) {
+        this.match = match;
+        this.matchSet = true;
+        return this;
+    }
+    @Override
+    public List<OFInstruction> getInstructions() {
+        return instructions;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setInstructions(List<OFInstruction> instructions) {
+        this.instructions = instructions;
+        this.instructionsSet = true;
+        return this;
+    }
+    @Override
+    public List<OFAction> getActions()throws UnsupportedOperationException {
+        throw new UnsupportedOperationException("Property actions not supported in version 1.2");
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setActions(List<OFAction> actions) throws UnsupportedOperationException {
+            throw new UnsupportedOperationException("Property actions not supported in version 1.2");
+    }
+
+
+        @Override
+        public OFFlowModifyStrict build() {
+                long xid = this.xidSet ? this.xid : parentMessage.xid;
+                U64 cookie = this.cookieSet ? this.cookie : parentMessage.cookie;
+                if(cookie == null)
+                    throw new NullPointerException("Property cookie must not be null");
+                U64 cookieMask = this.cookieMaskSet ? this.cookieMask : parentMessage.cookieMask;
+                if(cookieMask == null)
+                    throw new NullPointerException("Property cookieMask must not be null");
+                TableId tableId = this.tableIdSet ? this.tableId : parentMessage.tableId;
+                if(tableId == null)
+                    throw new NullPointerException("Property tableId must not be null");
+                int idleTimeout = this.idleTimeoutSet ? this.idleTimeout : parentMessage.idleTimeout;
+                int hardTimeout = this.hardTimeoutSet ? this.hardTimeout : parentMessage.hardTimeout;
+                int priority = this.prioritySet ? this.priority : parentMessage.priority;
+                OFBufferId bufferId = this.bufferIdSet ? this.bufferId : parentMessage.bufferId;
+                if(bufferId == null)
+                    throw new NullPointerException("Property bufferId must not be null");
+                OFPort outPort = this.outPortSet ? this.outPort : parentMessage.outPort;
+                if(outPort == null)
+                    throw new NullPointerException("Property outPort must not be null");
+                OFGroup outGroup = this.outGroupSet ? this.outGroup : parentMessage.outGroup;
+                if(outGroup == null)
+                    throw new NullPointerException("Property outGroup must not be null");
+                Set<OFFlowModFlags> flags = this.flagsSet ? this.flags : parentMessage.flags;
+                if(flags == null)
+                    throw new NullPointerException("Property flags must not be null");
+                Match match = this.matchSet ? this.match : parentMessage.match;
+                if(match == null)
+                    throw new NullPointerException("Property match must not be null");
+                List<OFInstruction> instructions = this.instructionsSet ? this.instructions : parentMessage.instructions;
+                if(instructions == null)
+                    throw new NullPointerException("Property instructions must not be null");
+
+                //
+                return new OFFlowModifyStrictVer12(
+                    xid,
+                    cookie,
+                    cookieMask,
+                    tableId,
+                    idleTimeout,
+                    hardTimeout,
+                    priority,
+                    bufferId,
+                    outPort,
+                    outGroup,
+                    flags,
+                    match,
+                    instructions
+                );
+        }
+
+    }
+
+    static class Builder implements OFFlowModifyStrict.Builder {
+        // OF message fields
+        private boolean xidSet;
+        private long xid;
+        private boolean cookieSet;
+        private U64 cookie;
+        private boolean cookieMaskSet;
+        private U64 cookieMask;
+        private boolean tableIdSet;
+        private TableId tableId;
+        private boolean idleTimeoutSet;
+        private int idleTimeout;
+        private boolean hardTimeoutSet;
+        private int hardTimeout;
+        private boolean prioritySet;
+        private int priority;
+        private boolean bufferIdSet;
+        private OFBufferId bufferId;
+        private boolean outPortSet;
+        private OFPort outPort;
+        private boolean outGroupSet;
+        private OFGroup outGroup;
+        private boolean flagsSet;
+        private Set<OFFlowModFlags> flags;
+        private boolean matchSet;
+        private Match match;
+        private boolean instructionsSet;
+        private List<OFInstruction> instructions;
+
+    @Override
+    public OFVersion getVersion() {
+        return OFVersion.OF_12;
+    }
+
+    @Override
+    public OFType getType() {
+        return OFType.FLOW_MOD;
+    }
+
+    @Override
+    public long getXid() {
+        return xid;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setXid(long xid) {
+        this.xid = xid;
+        this.xidSet = true;
+        return this;
+    }
+    @Override
+    public U64 getCookie() {
+        return cookie;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setCookie(U64 cookie) {
+        this.cookie = cookie;
+        this.cookieSet = true;
+        return this;
+    }
+    @Override
+    public U64 getCookieMask() {
+        return cookieMask;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setCookieMask(U64 cookieMask) {
+        this.cookieMask = cookieMask;
+        this.cookieMaskSet = true;
+        return this;
+    }
+    @Override
+    public TableId getTableId() {
+        return tableId;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setTableId(TableId tableId) {
+        this.tableId = tableId;
+        this.tableIdSet = true;
+        return this;
+    }
+    @Override
+    public OFFlowModCommand getCommand() {
+        return OFFlowModCommand.MODIFY_STRICT;
+    }
+
+    @Override
+    public int getIdleTimeout() {
+        return idleTimeout;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setIdleTimeout(int idleTimeout) {
+        this.idleTimeout = idleTimeout;
+        this.idleTimeoutSet = true;
+        return this;
+    }
+    @Override
+    public int getHardTimeout() {
+        return hardTimeout;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setHardTimeout(int hardTimeout) {
+        this.hardTimeout = hardTimeout;
+        this.hardTimeoutSet = true;
+        return this;
+    }
+    @Override
+    public int getPriority() {
+        return priority;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setPriority(int priority) {
+        this.priority = priority;
+        this.prioritySet = true;
+        return this;
+    }
+    @Override
+    public OFBufferId getBufferId() {
+        return bufferId;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setBufferId(OFBufferId bufferId) {
+        this.bufferId = bufferId;
+        this.bufferIdSet = true;
+        return this;
+    }
+    @Override
+    public OFPort getOutPort() {
+        return outPort;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setOutPort(OFPort outPort) {
+        this.outPort = outPort;
+        this.outPortSet = true;
+        return this;
+    }
+    @Override
+    public OFGroup getOutGroup() {
+        return outGroup;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setOutGroup(OFGroup outGroup) {
+        this.outGroup = outGroup;
+        this.outGroupSet = true;
+        return this;
+    }
+    @Override
+    public Set<OFFlowModFlags> getFlags() {
+        return flags;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setFlags(Set<OFFlowModFlags> flags) {
+        this.flags = flags;
+        this.flagsSet = true;
+        return this;
+    }
+    @Override
+    public Match getMatch() {
+        return match;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setMatch(Match match) {
+        this.match = match;
+        this.matchSet = true;
+        return this;
+    }
+    @Override
+    public List<OFInstruction> getInstructions() {
+        return instructions;
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setInstructions(List<OFInstruction> instructions) {
+        this.instructions = instructions;
+        this.instructionsSet = true;
+        return this;
+    }
+    @Override
+    public List<OFAction> getActions()throws UnsupportedOperationException {
+        throw new UnsupportedOperationException("Property actions not supported in version 1.2");
+    }
+
+    @Override
+    public OFFlowModifyStrict.Builder setActions(List<OFAction> actions) throws UnsupportedOperationException {
+            throw new UnsupportedOperationException("Property actions not supported in version 1.2");
+    }
+//
+        @Override
+        public OFFlowModifyStrict build() {
+            long xid = this.xidSet ? this.xid : DEFAULT_XID;
+            U64 cookie = this.cookieSet ? this.cookie : DEFAULT_COOKIE;
+            if(cookie == null)
+                throw new NullPointerException("Property cookie must not be null");
+            U64 cookieMask = this.cookieMaskSet ? this.cookieMask : DEFAULT_COOKIE_MASK;
+            if(cookieMask == null)
+                throw new NullPointerException("Property cookieMask must not be null");
+            TableId tableId = this.tableIdSet ? this.tableId : DEFAULT_TABLE_ID;
+            if(tableId == null)
+                throw new NullPointerException("Property tableId must not be null");
+            int idleTimeout = this.idleTimeoutSet ? this.idleTimeout : DEFAULT_IDLE_TIMEOUT;
+            int hardTimeout = this.hardTimeoutSet ? this.hardTimeout : DEFAULT_HARD_TIMEOUT;
+            int priority = this.prioritySet ? this.priority : DEFAULT_PRIORITY;
+            OFBufferId bufferId = this.bufferIdSet ? this.bufferId : DEFAULT_BUFFER_ID;
+            if(bufferId == null)
+                throw new NullPointerException("Property bufferId must not be null");
+            OFPort outPort = this.outPortSet ? this.outPort : DEFAULT_OUT_PORT;
+            if(outPort == null)
+                throw new NullPointerException("Property outPort must not be null");
+            OFGroup outGroup = this.outGroupSet ? this.outGroup : DEFAULT_OUT_GROUP;
+            if(outGroup == null)
+                throw new NullPointerException("Property outGroup must not be null");
+            Set<OFFlowModFlags> flags = this.flagsSet ? this.flags : DEFAULT_FLAGS;
+            if(flags == null)
+                throw new NullPointerException("Property flags must not be null");
+            Match match = this.matchSet ? this.match : DEFAULT_MATCH;
+            if(match == null)
+                throw new NullPointerException("Property match must not be null");
+            List<OFInstruction> instructions = this.instructionsSet ? this.instructions : DEFAULT_INSTRUCTIONS;
+            if(instructions == null)
+                throw new NullPointerException("Property instructions must not be null");
+
+
+            return new OFFlowModifyStrictVer12(
+                    xid,
+                    cookie,
+                    cookieMask,
+                    tableId,
+                    idleTimeout,
+                    hardTimeout,
+                    priority,
+                    bufferId,
+                    outPort,
+                    outGroup,
+                    flags,
+                    match,
+                    instructions
+                );
+        }
+
+    }
+
+
+    final static Reader READER = new Reader();
+    static class Reader implements OFMessageReader<OFFlowModifyStrict> {
+        @Override
+        public OFFlowModifyStrict readFrom(ChannelBuffer bb) throws OFParseError {
+            int start = bb.readerIndex();
+            // fixed value property version == 3
+            byte version = bb.readByte();
+            if(version != (byte) 0x3)
+                throw new OFParseError("Wrong version: Expected=OFVersion.OF_12(3), got="+version);
+            // fixed value property type == 14
+            byte type = bb.readByte();
+            if(type != (byte) 0xe)
+                throw new OFParseError("Wrong type: Expected=OFType.FLOW_MOD(14), got="+type);
+            int length = U16.f(bb.readShort());
+            if(length < MINIMUM_LENGTH)
+                throw new OFParseError("Wrong length: Expected to be >= " + MINIMUM_LENGTH + ", was: " + length);
+            if(bb.readableBytes() + (bb.readerIndex() - start) < length) {
+                // Buffer does not have all data yet
+                bb.readerIndex(start);
+                return null;
+            }
+            if(logger.isTraceEnabled())
+                logger.trace("readFrom - length={}", length);
+            long xid = U32.f(bb.readInt());
+            U64 cookie = U64.ofRaw(bb.readLong());
+            U64 cookieMask = U64.ofRaw(bb.readLong());
+            TableId tableId = TableId.readByte(bb);
+            // fixed value property command == 2
+            short command = bb.readByte();
+            if(command != (short) 0x2)
+                throw new OFParseError("Wrong command: Expected=OFFlowModCommand.MODIFY_STRICT(2), got="+command);
+            int idleTimeout = U16.f(bb.readShort());
+            int hardTimeout = U16.f(bb.readShort());
+            int priority = U16.f(bb.readShort());
+            OFBufferId bufferId = OFBufferId.of(bb.readInt());
+            OFPort outPort = OFPort.read4Bytes(bb);
+            OFGroup outGroup = OFGroup.read4Bytes(bb);
+            Set<OFFlowModFlags> flags = OFFlowModFlagsSerializerVer12.readFrom(bb);
+            // pad: 2 bytes
+            bb.skipBytes(2);
+            Match match = ChannelUtilsVer12.readOFMatch(bb);
+            List<OFInstruction> instructions = ChannelUtils.readList(bb, length - (bb.readerIndex() - start), OFInstructionVer12.READER);
+
+            OFFlowModifyStrictVer12 flowModifyStrictVer12 = new OFFlowModifyStrictVer12(
+                    xid,
+                      cookie,
+                      cookieMask,
+                      tableId,
+                      idleTimeout,
+                      hardTimeout,
+                      priority,
+                      bufferId,
+                      outPort,
+                      outGroup,
+                      flags,
+                      match,
+                      instructions
+                    );
+            if(logger.isTraceEnabled())
+                logger.trace("readFrom - read={}", flowModifyStrictVer12);
+            return flowModifyStrictVer12;
+        }
+    }
+
+    public void putTo(PrimitiveSink sink) {
+        FUNNEL.funnel(this, sink);
+    }
+
+    final static OFFlowModifyStrictVer12Funnel FUNNEL = new OFFlowModifyStrictVer12Funnel();
+    static class OFFlowModifyStrictVer12Funnel implements Funnel<OFFlowModifyStrictVer12> {
+        private static final long serialVersionUID = 1L;
+        @Override
+        public void funnel(OFFlowModifyStrictVer12 message, PrimitiveSink sink) {
+            // fixed value property version = 3
+            sink.putByte((byte) 0x3);
+            // fixed value property type = 14
+            sink.putByte((byte) 0xe);
+            // FIXME: skip funnel of length
+            sink.putLong(message.xid);
+            message.cookie.putTo(sink);
+            message.cookieMask.putTo(sink);
+            message.tableId.putTo(sink);
+            // fixed value property command = 2
+            sink.putShort((short) 0x2);
+            sink.putInt(message.idleTimeout);
+            sink.putInt(message.hardTimeout);
+            sink.putInt(message.priority);
+            message.bufferId.putTo(sink);
+            message.outPort.putTo(sink);
+            message.outGroup.putTo(sink);
+            OFFlowModFlagsSerializerVer12.putTo(message.flags, sink);
+            // skip pad (2 bytes)
+            message.match.putTo(sink);
+            FunnelUtils.putList(message.instructions, sink);
+        }
+    }
+
+
+    public void writeTo(ChannelBuffer bb) {
+        WRITER.write(bb, this);
+    }
+
+    final static Writer WRITER = new Writer();
+    static class Writer implements OFMessageWriter<OFFlowModifyStrictVer12> {
+        @Override
+        public void write(ChannelBuffer bb, OFFlowModifyStrictVer12 message) {
+            int startIndex = bb.writerIndex();
+            // fixed value property version = 3
+            bb.writeByte((byte) 0x3);
+            // fixed value property type = 14
+            bb.writeByte((byte) 0xe);
+            // length is length of variable message, will be updated at the end
+            int lengthIndex = bb.writerIndex();
+            bb.writeShort(U16.t(0));
+
+            bb.writeInt(U32.t(message.xid));
+            bb.writeLong(message.cookie.getValue());
+            bb.writeLong(message.cookieMask.getValue());
+            message.tableId.writeByte(bb);
+            // fixed value property command = 2
+            bb.writeByte((short) 0x2);
+            bb.writeShort(U16.t(message.idleTimeout));
+            bb.writeShort(U16.t(message.hardTimeout));
+            bb.writeShort(U16.t(message.priority));
+            bb.writeInt(message.bufferId.getInt());
+            message.outPort.write4Bytes(bb);
+            message.outGroup.write4Bytes(bb);
+            OFFlowModFlagsSerializerVer12.writeTo(bb, message.flags);
+            // pad: 2 bytes
+            bb.writeZero(2);
+            message.match.writeTo(bb);
+            ChannelUtils.writeList(bb, message.instructions);
+
+            // update length field
+            int length = bb.writerIndex() - startIndex;
+            bb.setShort(lengthIndex, length);
+
+        }
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder b = new StringBuilder("OFFlowModifyStrictVer12(");
+        b.append("xid=").append(xid);
+        b.append(", ");
+        b.append("cookie=").append(cookie);
+        b.append(", ");
+        b.append("cookieMask=").append(cookieMask);
+        b.append(", ");
+        b.append("tableId=").append(tableId);
+        b.append(", ");
+        b.append("idleTimeout=").append(idleTimeout);
+        b.append(", ");
+        b.append("hardTimeout=").append(hardTimeout);
+        b.append(", ");
+        b.append("priority=").append(priority);
+        b.append(", ");
+        b.append("bufferId=").append(bufferId);
+        b.append(", ");
+        b.append("outPort=").append(outPort);
+        b.append(", ");
+        b.append("outGroup=").append(outGroup);
+        b.append(", ");
+        b.append("flags=").append(flags);
+        b.append(", ");
+        b.append("match=").append(match);
+        b.append(", ");
+        b.append("instructions=").append(instructions);
+        b.append(")");
+        return b.toString();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        OFFlowModifyStrictVer12 other = (OFFlowModifyStrictVer12) obj;
+
+        if( xid != other.xid)
+            return false;
+        if (cookie == null) {
+            if (other.cookie != null)
+                return false;
+        } else if (!cookie.equals(other.cookie))
+            return false;
+        if (cookieMask == null) {
+            if (other.cookieMask != null)
+                return false;
+        } else if (!cookieMask.equals(other.cookieMask))
+            return false;
+        if (tableId == null) {
+            if (other.tableId != null)
+                return false;
+        } else if (!tableId.equals(other.tableId))
+            return false;
+        if( idleTimeout != other.idleTimeout)
+            return false;
+        if( hardTimeout != other.hardTimeout)
+            return false;
+        if( priority != other.priority)
+            return false;
+        if (bufferId == null) {
+            if (other.bufferId != null)
+                return false;
+        } else if (!bufferId.equals(other.bufferId))
+            return false;
+        if (outPort == null) {
+            if (other.outPort != null)
+                return false;
+        } else if (!outPort.equals(other.outPort))
+            return false;
+        if (outGroup == null) {
+            if (other.outGroup != null)
+                return false;
+        } else if (!outGroup.equals(other.outGroup))
+            return false;
+        if (flags == null) {
+            if (other.flags != null)
+                return false;
+        } else if (!flags.equals(other.flags))
+            return false;
+        if (match == null) {
+            if (other.match != null)
+                return false;
+        } else if (!match.equals(other.match))
+            return false;
+        if (instructions == null) {
+            if (other.instructions != null)
+                return false;
+        } else if (!instructions.equals(other.instructions))
+            return false;
+        return true;
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+
+        result = prime *  (int) (xid ^ (xid >>> 32));
+        result = prime * result + ((cookie == null) ? 0 : cookie.hashCode());
+        result = prime * result + ((cookieMask == null) ? 0 : cookieMask.hashCode());
+        result = prime * result + ((tableId == null) ? 0 : tableId.hashCode());
+        result = prime * result + idleTimeout;
+        result = prime * result + hardTimeout;
+        result = prime * result + priority;
+        result = prime * result + ((bufferId == null) ? 0 : bufferId.hashCode());
+        result = prime * result + ((outPort == null) ? 0 : outPort.hashCode());
+        result = prime * result + ((outGroup == null) ? 0 : outGroup.hashCode());
+        result = prime * result + ((flags == null) ? 0 : flags.hashCode());
+        result = prime * result + ((match == null) ? 0 : match.hashCode());
+        result = prime * result + ((instructions == null) ? 0 : instructions.hashCode());
+        return result;
+    }
+
+}