diff --git a/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/flowspec/BgpFlowSpecNlri.java b/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/flowspec/BgpFlowSpecNlri.java
new file mode 100755
index 0000000..fa40149
--- /dev/null
+++ b/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/flowspec/BgpFlowSpecNlri.java
@@ -0,0 +1,293 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.bgpio.protocol.flowspec;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.ListIterator;
+import java.util.Objects;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.onosproject.bgpio.types.BgpFsDestinationPortNum;
+import org.onosproject.bgpio.types.BgpFsDestinationPrefix;
+import org.onosproject.bgpio.types.BgpFsDscpValue;
+import org.onosproject.bgpio.types.BgpFsFragment;
+import org.onosproject.bgpio.types.BgpFsIcmpCode;
+import org.onosproject.bgpio.types.BgpFsIcmpType;
+import org.onosproject.bgpio.types.BgpFsIpProtocol;
+import org.onosproject.bgpio.types.BgpFsPacketLength;
+import org.onosproject.bgpio.types.BgpFsPortNum;
+import org.onosproject.bgpio.types.BgpFsSourcePortNum;
+import org.onosproject.bgpio.types.BgpFsSourcePrefix;
+import org.onosproject.bgpio.types.BgpFsTcpFlags;
+import org.onosproject.bgpio.types.BgpValueType;
+import org.onosproject.bgpio.types.RouteDistinguisher;
+import org.onosproject.bgpio.util.Constants;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * This Class stores flow specification components and action.
+ */
+public class BgpFlowSpecNlri {
+    private List<BgpValueType> flowSpecComponents;
+    private List<BgpValueType> fsActionTlv;
+    private RouteDistinguisher routeDistinguisher;
+    public static final short FLOW_SPEC_LEN = 240;
+
+    /**
+     * Flow specification details object constructor with the parameter.
+     *
+     * @param flowSpecComponents flow specification components
+     */
+    public BgpFlowSpecNlri(List<BgpValueType> flowSpecComponents) {
+        this.flowSpecComponents = flowSpecComponents;
+    }
+
+    /**
+     * Flow specification details object constructor.
+     *
+     */
+    public BgpFlowSpecNlri() {
+
+    }
+
+    /**
+     * Returns flow specification action tlv.
+     *
+     * @return flow specification action tlv
+     */
+    public List<BgpValueType> fsActionTlv() {
+        return this.fsActionTlv;
+    }
+
+    /**
+     * Set flow specification action tlv.
+     *
+     * @param fsActionTlv flow specification action tlv
+     */
+    public void setFsActionTlv(List<BgpValueType> fsActionTlv) {
+        this.fsActionTlv = fsActionTlv;
+    }
+
+    /**
+     * Returns route distinguisher for the flow specification components.
+     *
+     * @return route distinguisher for the flow specification components
+     */
+    public RouteDistinguisher routeDistinguisher() {
+        return this.routeDistinguisher;
+    }
+
+    /**
+     * Set route distinguisher for flow specification component.
+     *
+     * @param routeDistinguisher route distinguisher
+     */
+    public void setRouteDistinguiher(RouteDistinguisher routeDistinguisher) {
+        this.routeDistinguisher = routeDistinguisher;
+    }
+
+    /**
+     * Returns flow specification components.
+     *
+     * @return flow specification components
+     */
+    public List<BgpValueType> flowSpecComponents() {
+        return this.flowSpecComponents;
+    }
+
+    /**
+     * Sets flow specification components.
+     *
+     * @param flowSpecComponents flow specification components
+     */
+    public void setFlowSpecComponents(List<BgpValueType> flowSpecComponents) {
+        this.flowSpecComponents = flowSpecComponents;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(flowSpecComponents);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+
+        if (obj instanceof BgpFlowSpecNlri) {
+            int countObjSubTlv = 0;
+            int countOtherSubTlv = 0;
+            boolean isCommonSubTlv = true;
+            BgpFlowSpecNlri other = (BgpFlowSpecNlri) obj;
+            Iterator<BgpValueType> objListIterator = other.flowSpecComponents.iterator();
+            countOtherSubTlv = other.flowSpecComponents.size();
+            countObjSubTlv = flowSpecComponents.size();
+            if (countObjSubTlv != countOtherSubTlv) {
+                return false;
+            } else {
+                while (objListIterator.hasNext() && isCommonSubTlv) {
+                    BgpValueType subTlv = objListIterator.next();
+                    if (flowSpecComponents.contains(subTlv) && other.flowSpecComponents.contains(subTlv)) {
+                        isCommonSubTlv = Objects.equals(flowSpecComponents.get(flowSpecComponents.indexOf(subTlv)),
+                                            other.flowSpecComponents.get(other.flowSpecComponents.indexOf(subTlv)));
+                    } else {
+                        isCommonSubTlv = false;
+                    }
+                }
+                return isCommonSubTlv;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Write flow type to channel buffer.
+     *
+     * @param tlv flow type
+     * @param cb channel buffer
+     */
+    public static void writeFlowType(BgpValueType tlv, ChannelBuffer cb) {
+
+        switch (tlv.getType()) {
+            case Constants.BGP_FLOWSPEC_DST_PREFIX:
+                BgpFsDestinationPrefix fsDstPrefix = (BgpFsDestinationPrefix) tlv;
+                fsDstPrefix.write(cb);
+                break;
+            case Constants.BGP_FLOWSPEC_SRC_PREFIX:
+                BgpFsSourcePrefix fsSrcPrefix = (BgpFsSourcePrefix) tlv;
+                fsSrcPrefix.write(cb);
+                break;
+            case Constants.BGP_FLOWSPEC_IP_PROTO:
+                BgpFsIpProtocol fsIpProtocol = (BgpFsIpProtocol) tlv;
+                fsIpProtocol.write(cb);
+                break;
+            case Constants.BGP_FLOWSPEC_PORT:
+                BgpFsPortNum fsPortNum = (BgpFsPortNum) tlv;
+                fsPortNum.write(cb);
+                break;
+            case Constants.BGP_FLOWSPEC_DST_PORT:
+                BgpFsDestinationPortNum fsDstPortNum = (BgpFsDestinationPortNum) tlv;
+                fsDstPortNum.write(cb);
+                break;
+            case Constants.BGP_FLOWSPEC_SRC_PORT:
+                BgpFsSourcePortNum fsSrcPortNum = (BgpFsSourcePortNum) tlv;
+                fsSrcPortNum.write(cb);
+                break;
+            case Constants.BGP_FLOWSPEC_ICMP_TP:
+                BgpFsIcmpType fsIcmpType = (BgpFsIcmpType) tlv;
+                fsIcmpType.write(cb);
+                break;
+            case Constants.BGP_FLOWSPEC_ICMP_CD:
+                BgpFsIcmpCode fsIcmpCode = (BgpFsIcmpCode) tlv;
+                fsIcmpCode.write(cb);
+                break;
+            case Constants.BGP_FLOWSPEC_TCP_FLAGS:
+                BgpFsTcpFlags fsTcpFlags = (BgpFsTcpFlags) tlv;
+                fsTcpFlags.write(cb);
+                break;
+            case Constants.BGP_FLOWSPEC_PCK_LEN:
+                BgpFsPacketLength fsPacketLen = (BgpFsPacketLength) tlv;
+                fsPacketLen.write(cb);
+                break;
+            case Constants.BGP_FLOWSPEC_DSCP:
+                BgpFsDscpValue fsDscpVal = (BgpFsDscpValue) tlv;
+                fsDscpVal.write(cb);
+                break;
+            case Constants.BGP_FLOWSPEC_FRAGMENT:
+                BgpFsFragment fsFragment = (BgpFsFragment) tlv;
+                fsFragment.write(cb);
+                break;
+            default:
+                break;
+        }
+        return;
+    }
+
+    /**
+     * Update buffer with identical flow types.
+     *
+     * @param cb channel buffer
+     */
+    public static void updateBufferIdenticalFlowTypes(ChannelBuffer cb, BgpFlowSpecNlri bgpFlowSpecNlri) {
+
+        List<BgpValueType> flowSpec = bgpFlowSpecNlri.flowSpecComponents();
+        ListIterator<BgpValueType> listIterator = flowSpec.listIterator();
+
+        while (listIterator.hasNext()) {
+            ChannelBuffer flowSpecTmpBuff = ChannelBuffers.dynamicBuffer();
+            int tmpBuffStartIndx = flowSpecTmpBuff.writerIndex();
+
+            BgpValueType tlv = listIterator.next();
+            writeFlowType(tlv, flowSpecTmpBuff);
+
+            /* RFC 5575: section 4,  If the NLRI length value is smaller than 240 (0xf0 hex), the length
+                                     field can be encoded as a single octet.  Otherwise, it is encoded as
+                                     an extended-length 2-octet values */
+            int len = flowSpecTmpBuff.writerIndex() - tmpBuffStartIndx;
+            if (len >= FLOW_SPEC_LEN) {
+                cb.writeShort(len);
+            } else {
+                cb.writeByte(len);
+            }
+            //Copy from bynamic buffer to channel buffer
+            cb.writeBytes(flowSpecTmpBuff);
+        }
+        return;
+    }
+
+    /**
+     * Update buffer with non-identical flow types.
+     *
+     * @param cb channel buffer
+     */
+    public static void updateBufferNonIdenticalFlowTypes(ChannelBuffer cb, BgpFlowSpecNlri bgpFlowSpecNlri) {
+        ChannelBuffer flowSpecTmpBuff = ChannelBuffers.dynamicBuffer();
+        List<BgpValueType> flowSpec = bgpFlowSpecNlri.flowSpecComponents();
+        ListIterator<BgpValueType> listIterator = flowSpec.listIterator();
+        int tmpBuffStartIndx = flowSpecTmpBuff.writerIndex();
+
+        flowSpec = bgpFlowSpecNlri.flowSpecComponents();
+        listIterator = flowSpec.listIterator();
+
+        while (listIterator.hasNext()) {
+            BgpValueType tlv = listIterator.next();
+            writeFlowType(tlv, flowSpecTmpBuff);
+        }
+
+        /* RFC 5575: section 4,  If the NLRI length value is smaller than 240 (0xf0 hex), the length
+                                 field can be encoded as a single octet.  Otherwise, it is encoded as
+                                 an extended-length 2-octet values */
+        int len = flowSpecTmpBuff.writerIndex() - tmpBuffStartIndx;
+        if (len >= FLOW_SPEC_LEN) {
+            cb.writeShort(len);
+        } else {
+            cb.writeByte(len);
+        }
+        //Copy from bynamic buffer to channel buffer
+        cb.writeBytes(flowSpecTmpBuff);
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .add("flowSpecComponents", flowSpecComponents)
+                .toString();
+    }
+}