diff --git a/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/IpExtendedReachabilityTlv.java b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/IpExtendedReachabilityTlv.java
index 14962d8..f1549e4 100644
--- a/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/IpExtendedReachabilityTlv.java
+++ b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/IpExtendedReachabilityTlv.java
@@ -220,10 +220,9 @@
         byte[] bytes = null;
         byte[] tlvHeader = tlvHeaderAsByteArray();
         byte[] tlvBody = tlvBodyAsBytes();
-        //systemID + pseudo number+length of subtlv=11l
-        tlvBody[10] = (byte) (tlvBody.length - 11);
         tlvHeader[1] = (byte) tlvBody.length;
         bytes = Bytes.concat(tlvHeader, tlvBody);
+
         return bytes;
     }
 
@@ -246,8 +245,8 @@
         } else {
             controlInfo = controlInfo + "0";
         }
-        String prefixlength = IsisUtil.toEightBitBinary(Integer.toBinaryString(this.prefixLength()));
-        controlInfo = controlInfo + prefixlength.substring(2, prefixlength.length());
+        String prefixLength = IsisUtil.toEightBitBinary(Integer.toBinaryString(this.prefixLength()));
+        controlInfo = controlInfo + prefixLength.substring(2, prefixLength.length());
         bodyLst.add(Byte.parseByte(controlInfo, 2));
         if (this.isSubTlvPresence()) {
             bodyLst.add(this.subTlvLength());
@@ -255,6 +254,8 @@
                 bodyLst.addAll(SubTlvToBytes.tlvToBytes(trafficEngineeringSubTlv));
             }
         }
+        bodyLst.addAll(Bytes.asList(IsisUtil.prefixToBytes(this.prefix())));
+
         return Bytes.toArray(bodyLst);
     }
 
diff --git a/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/IsExtendedReachability.java b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/IsExtendedReachability.java
new file mode 100644
index 0000000..c6cd9f0
--- /dev/null
+++ b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/IsExtendedReachability.java
@@ -0,0 +1,151 @@
+/*
+ * 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.isis.io.isispacket.tlv;
+
+import com.google.common.base.MoreObjects;
+import com.google.common.primitives.Bytes;
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.isis.io.isispacket.tlv.subtlv.SubTlvFinder;
+import org.onosproject.isis.io.isispacket.tlv.subtlv.SubTlvToBytes;
+import org.onosproject.isis.io.isispacket.tlv.subtlv.SubTlvType;
+import org.onosproject.isis.io.isispacket.tlv.subtlv.TrafficEngineeringSubTlv;
+import org.onosproject.isis.io.util.IsisUtil;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Representation of IS extended reachability TLV.
+ */
+public class IsExtendedReachability extends TlvHeader implements IsisTlv {
+
+    private String neighborId;
+    private int metric;
+    private List<TrafficEngineeringSubTlv> trafEnginSubTlv = new ArrayList<>();
+
+    /**
+     * Creates an instance of IP external reachability TLV.
+     *
+     * @param tlvHeader TLV header
+     */
+    public IsExtendedReachability(TlvHeader tlvHeader) {
+        this.setTlvType(tlvHeader.tlvType());
+        this.setTlvLength(tlvHeader.tlvLength());
+    }
+
+    /**
+     * Returns neighbor ID.
+     *
+     * @return neighbor ID
+     */
+    public String neighborId() {
+        return neighborId;
+    }
+
+    /**
+     * Sets neighbor ID.
+     *
+     * @param neighborId neighbor ID
+     */
+    public void setNeighborId(String neighborId) {
+        this.neighborId = neighborId;
+    }
+
+    /**
+     * Returns metric.
+     *
+     * @return metric
+     */
+    public int metric() {
+        return metric;
+    }
+
+    /**
+     * Sets metric.
+     *
+     * @param metric metric
+     */
+    public void setMetric(int metric) {
+        this.metric = metric;
+    }
+
+    /**
+     * Adds the traffic engineering sub TLV to IS extended reachability TLV.
+     *
+     * @param trafEnginSubTlv traffic engineering sub TLV
+     */
+    public void addSubTlv(TrafficEngineeringSubTlv trafEnginSubTlv) {
+        this.trafEnginSubTlv.add(trafEnginSubTlv);
+    }
+
+    @Override
+    public void readFrom(ChannelBuffer channelBuffer) {
+        byte[] tempByteArray = new byte[IsisUtil.ID_SIX_BYTES];
+        channelBuffer.readBytes(tempByteArray, 0, IsisUtil.ID_SIX_BYTES);
+        this.setNeighborId(IsisUtil.systemId(tempByteArray));
+        this.setMetric(channelBuffer.readUnsignedMedium());
+        while (channelBuffer.readableBytes() > 0) {
+            TlvHeader tlvHeader = new TlvHeader();
+            tlvHeader.setTlvType(channelBuffer.readByte());
+            tlvHeader.setTlvLength(channelBuffer.readByte());
+            SubTlvType tlvValue = SubTlvType.get(tlvHeader.tlvType());
+            if (tlvValue != null) {
+                this.addSubTlv(SubTlvFinder.findSubTlv(tlvHeader,
+                                                       channelBuffer.readBytes(tlvHeader.tlvLength())));
+            } else {
+                channelBuffer.readBytes(tlvHeader.tlvLength());
+            }
+        }
+    }
+
+    @Override
+    public byte[] asBytes() {
+        byte[] bytes = null;
+        byte[] tlvHeader = tlvHeaderAsByteArray();
+        byte[] tlvBody = tlvBodyAsBytes();
+        tlvHeader[1] = (byte) tlvBody.length;
+        bytes = Bytes.concat(tlvHeader, tlvBody);
+        return bytes;
+    }
+
+    /**
+     * Returns TLV body of IS extended reachability TLV.
+     *
+     * @return byteArray TLV body of IS extended reachability TLV.
+     */
+    private byte[] tlvBodyAsBytes() {
+        List<Byte> byteList = new ArrayList<>();
+        byteList.addAll(IsisUtil.sourceAndLanIdToBytes(this.neighborId()));
+        byteList.addAll(Bytes.asList(IsisUtil.convertToThreeBytes(this.metric())));
+        if (this.trafEnginSubTlv.size() > 0) {
+            for (TrafficEngineeringSubTlv trafficEngineeringSubTlv : this.trafEnginSubTlv) {
+                byteList.addAll(SubTlvToBytes.tlvToBytes(trafficEngineeringSubTlv));
+            }
+        }
+        return Bytes.toArray(byteList);
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .omitNullValues()
+                .add("neighborId", neighborId)
+                .add("metric", metric)
+                .add("trafEnginSubTlv", trafEnginSubTlv)
+                .toString();
+    }
+
+}
diff --git a/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/MetricOfInternalReachability.java b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/MetricOfInternalReachability.java
index 179b3e6..4ad4871 100644
--- a/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/MetricOfInternalReachability.java
+++ b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/MetricOfInternalReachability.java
@@ -358,10 +358,7 @@
         } else {
             this.setErrorMetricSupported(false);
         }
-        List<Byte> byteList = new ArrayList<>();
-        while (channelBuffer.readableBytes() > 0) {
-            byteList.add(channelBuffer.readByte());
-        }
+
         byte[] tempByteArray = new byte[IsisUtil.FOUR_BYTES];
         channelBuffer.readBytes(tempByteArray, 0, IsisUtil.FOUR_BYTES);
         this.setIpAddress(Ip4Address.valueOf(tempByteArray));
diff --git a/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/TlvFinder.java b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/TlvFinder.java
index d6bb909..5e31c17 100644
--- a/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/TlvFinder.java
+++ b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/TlvFinder.java
@@ -42,7 +42,10 @@
                 //TODO
                 break;
             case EXTENDEDISREACHABILITY:
-                //TODO
+                IsExtendedReachability isExtendedReachability =
+                        new IsExtendedReachability(tlvHeader);
+                isExtendedReachability.readFrom(channelBuffer);
+                isisTlv = isExtendedReachability;
                 break;
             case HOSTNAME:
                 HostNameTlv hostNameTlv = new HostNameTlv(tlvHeader);
diff --git a/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/TlvsToBytes.java b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/TlvsToBytes.java
index e3eba57..7978385 100644
--- a/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/TlvsToBytes.java
+++ b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/TlvsToBytes.java
@@ -82,6 +82,10 @@
             LspEntriesTlv lspEntriesTlv
                     = (LspEntriesTlv) isisTlv;
             tlvBytes.addAll(Bytes.asList(lspEntriesTlv.asBytes()));
+        } else if (isisTlv instanceof IsExtendedReachability) {
+            IsExtendedReachability isExtendedReachability
+                    = (IsExtendedReachability) isisTlv;
+            tlvBytes.addAll(Bytes.asList(isExtendedReachability.asBytes()));
         } else {
             log.debug("TlvsToBytes::UNKNOWN TLV TYPE ::TlvsToBytes ");
         }