diff --git a/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/MetricsOfReachability.java b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/MetricsOfReachability.java
new file mode 100644
index 0000000..5274424
--- /dev/null
+++ b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/MetricsOfReachability.java
@@ -0,0 +1,358 @@
+/*
+ * 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.util.IsisUtil;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Representation of metric of reachability.
+ */
+public class MetricsOfReachability {
+    private final String value1 = "10000000";
+    private final String value2 = "00000000";
+    private String neighborId;
+    private byte defaultMetric;
+    private byte delayMetric;
+    private byte expenseMetric;
+    private byte errorMetric;
+    private boolean delayMetricSupported;
+    private boolean expenseMetricSupported;
+    private boolean errorMetricSupported;
+    private boolean defaultIsInternal;
+    private boolean delayIsInternal;
+    private boolean expenseIsInternal;
+    private boolean errorIsInternal;
+
+    /**
+     * Returns delay metric is internal or not.
+     *
+     * @return true if internal else false
+     */
+    public boolean isDelayIsInternal() {
+        return delayIsInternal;
+    }
+
+    /**
+     * Sets delay metric is internal or not.
+     *
+     * @param delayIsInternal true if internal else false
+     */
+    public void setDelayIsInternal(boolean delayIsInternal) {
+        this.delayIsInternal = delayIsInternal;
+    }
+
+    /**
+     * Returns expense metric is internal or not.
+     *
+     * @return true if internal else false
+     */
+    public boolean isExpenseIsInternal() {
+        return expenseIsInternal;
+    }
+
+    /**
+     * Sets expense metric is internal or not.
+     *
+     * @param expenseIsInternal true if internal else false
+     */
+    public void setExpenseIsInternal(boolean expenseIsInternal) {
+        this.expenseIsInternal = expenseIsInternal;
+    }
+
+    /**
+     * Returns error metric is internal or not.
+     *
+     * @return true if internal else false
+     */
+    public boolean isErrorIsInternal() {
+        return errorIsInternal;
+    }
+
+    /**
+     * Sets error metric is internal or not.
+     *
+     * @param errorIsInternal true if internal else false
+     */
+    public void setErrorIsInternal(boolean errorIsInternal) {
+        this.errorIsInternal = errorIsInternal;
+    }
+
+    /**
+     * Returns default metric is internal or not.
+     *
+     * @return true if internal else false
+     */
+    public boolean isDefaultIsInternal() {
+        return defaultIsInternal;
+    }
+
+    /**
+     * Sets default metric is internal or not.
+     *
+     * @param defaultIsInternal true if internal else false
+     */
+    public void setDefaultIsInternal(boolean defaultIsInternal) {
+        this.defaultIsInternal = defaultIsInternal;
+    }
+
+    /**
+     * Returns delay metric is supported or not.
+     *
+     * @return true if supported else false
+     */
+    public boolean isDelayMetricSupported() {
+        return delayMetricSupported;
+    }
+
+    /**
+     * Sets delay metric is supported or not.
+     *
+     * @param delayMetricSupported true if supported else false
+     */
+    public void setDelayMetricSupported(boolean delayMetricSupported) {
+        this.delayMetricSupported = delayMetricSupported;
+    }
+
+    /**
+     * Returns expense metric is supported or not.
+     *
+     * @return true if supported else false
+     */
+    public boolean isExpenseMetricSupported() {
+        return expenseMetricSupported;
+    }
+
+    /**
+     * Sets expense metric is supported or not.
+     *
+     * @param expenseMetricSupported true if supported else false
+     */
+    public void setExpenseMetricSupported(boolean expenseMetricSupported) {
+        this.expenseMetricSupported = expenseMetricSupported;
+    }
+
+    /**
+     * Returns error metric is supported or not.
+     *
+     * @return true if supported else false
+     */
+    public boolean isErrorMetricSupported() {
+        return errorMetricSupported;
+    }
+
+    /**
+     * Sets error metric is supported or not.
+     *
+     * @param errorMetricSupported true if supported else false
+     */
+    public void setErrorMetricSupported(boolean errorMetricSupported) {
+        this.errorMetricSupported = errorMetricSupported;
+    }
+
+    /**
+     * Returns neighbor ID of metric of reachability.
+     *
+     * @return neighbor ID
+     */
+    public String neighborId() {
+        return neighborId;
+    }
+
+    /**
+     * Sets neighbor ID for metric of reachability.
+     *
+     * @param neighborId neighbor ID
+     */
+    public void setNeighborId(String neighborId) {
+        this.neighborId = neighborId;
+    }
+
+
+    /**
+     * Returns default metric of metric of reachability.
+     *
+     * @return default metric
+     */
+    public byte defaultMetric() {
+        return defaultMetric;
+    }
+
+    /**
+     * Sets default metric for  of reachability.
+     *
+     * @param defaultMetric default metric
+     */
+    public void setDefaultMetric(byte defaultMetric) {
+        this.defaultMetric = defaultMetric;
+    }
+
+    /**
+     * Returns delay metric of metric of reachability.
+     *
+     * @return delay metric
+     */
+    public byte delayMetric() {
+        return delayMetric;
+    }
+
+    /**
+     * Sets delay metric for metric of reachability.
+     *
+     * @param delayMetric delay metric.
+     */
+    public void setDelayMetric(byte delayMetric) {
+        this.delayMetric = delayMetric;
+    }
+
+    /**
+     * Returns Expense metric of metric of reachability.
+     *
+     * @return Expense metric
+     */
+    public byte expenseMetric() {
+        return expenseMetric;
+    }
+
+    /**
+     * Sets Expense metric for metric of reachability.
+     *
+     * @param expenseMetric Expense metric.
+     */
+    public void setExpenseMetric(byte expenseMetric) {
+        this.expenseMetric = expenseMetric;
+    }
+
+    /**
+     * Returns Error metric of metric of reachability.
+     *
+     * @return Error metric
+     */
+    public byte errorMetric() {
+        return errorMetric;
+    }
+
+    /**
+     * Sets Error metric for metric of reachability.
+     *
+     * @param errorMetric Error metric.
+     */
+    public void setErrorMetric(byte errorMetric) {
+        this.errorMetric = errorMetric;
+    }
+
+    /**
+     * Sets the metric of reachability values for metric of reachability from byte buffer.
+     *
+     * @param channelBuffer channel Buffer instance
+     */
+    public void readFrom(ChannelBuffer channelBuffer) {
+        byte metric = channelBuffer.readByte();
+        String metricInBinary = Integer.toBinaryString(Byte.toUnsignedInt(metric));
+        metricInBinary = IsisUtil.toEightBitBinary(metricInBinary);
+        this.setDefaultMetric(metric);
+        this.setDelayMetric(metric);
+        this.setExpenseMetric(metric);
+        this.setErrorMetric(metric);
+        this.setDelayMetric(metric);
+        if (metricInBinary.charAt(0) == 0) {
+            this.setDefaultIsInternal(true);
+        } else {
+            this.setDefaultIsInternal(false);
+        }
+        if (metricInBinary.charAt(0) == 0) {
+            this.setDelayMetricSupported(true);
+            this.setExpenseMetricSupported(true);
+            this.setErrorMetricSupported(true);
+        } else {
+            this.setDelayMetricSupported(false);
+            this.setExpenseMetricSupported(false);
+            this.setErrorMetricSupported(false);
+        }
+        byte temp = channelBuffer.readByte();
+        String internalBit = Integer.toBinaryString(Byte.toUnsignedInt(temp));
+        internalBit = IsisUtil.toEightBitBinary(internalBit);
+        if (internalBit.charAt(1) == 0) {
+            this.setDelayIsInternal(true);
+        }
+        temp = channelBuffer.readByte();
+        internalBit = Integer.toBinaryString(Byte.toUnsignedInt(temp));
+        internalBit = IsisUtil.toEightBitBinary(internalBit);
+        if (internalBit.charAt(1) == 0) {
+            this.setExpenseIsInternal(true);
+        }
+        temp = channelBuffer.readByte();
+        internalBit = Integer.toBinaryString(Byte.toUnsignedInt(temp));
+        internalBit = IsisUtil.toEightBitBinary(internalBit);
+        if (internalBit.charAt(1) == 0) {
+            this.setErrorIsInternal(true);
+        }
+        byte[] tempByteArray = new byte[IsisUtil.ID_PLUS_ONE_BYTE];
+        channelBuffer.readBytes(tempByteArray, 0, IsisUtil.ID_PLUS_ONE_BYTE);
+        this.setNeighborId(IsisUtil.systemIdPlus(tempByteArray));
+    }
+
+    /**
+     * Returns metric of reachability values as bytes of metric of reachability.
+     *
+     * @return byteArray metric of reachability values as bytes of metric of reachability
+     */
+    public byte[] asBytes() {
+        List<Byte> bytes = new ArrayList<>();
+        bytes.add((byte) this.defaultMetric());
+        if (this.isDelayIsInternal()) {
+            bytes.add((byte) Integer.parseInt(value1));
+        } else {
+            bytes.add((byte) Integer.parseInt(value2));
+        }
+        if (this.isExpenseIsInternal()) {
+            bytes.add((byte) Integer.parseInt(value1));
+        } else {
+            bytes.add((byte) Integer.parseInt(value2));
+        }
+        if (this.isErrorIsInternal()) {
+            bytes.add((byte) Integer.parseInt(value1));
+        } else {
+            bytes.add((byte) Integer.parseInt(value2));
+        }
+        bytes.addAll(IsisUtil.sourceAndLanIdToBytes(this.neighborId()));
+        return Bytes.toArray(bytes);
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .omitNullValues()
+                .add("neighborId", neighborId)
+                .add("defaultMetric", defaultMetric)
+                .add("delayMetric", delayMetric)
+                .add("expenseMetric", expenseMetric)
+                .add("errorMetric", errorMetric)
+                .add("delayMetricSupported", delayMetricSupported)
+                .add("expenseMetricSupported", expenseMetricSupported)
+                .add("errorMetricSupported", errorMetricSupported)
+                .add("defaultIsInternal", defaultIsInternal)
+                .add("delayIsInternal", delayIsInternal)
+                .add("expenseIsInternal", expenseIsInternal)
+                .add("errorIsInternal", errorIsInternal)
+                .toString();
+    }
+}