diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/TlvHeaderTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/TlvHeaderTest.java
new file mode 100644
index 0000000..5857083
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/TlvHeaderTest.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2016 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.ospf.protocol.lsa;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.hamcrest.CoreMatchers.notNullValue;
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertThat;
+
+/**
+ * Unit test class for Tlv Header.
+ */
+public class TlvHeaderTest {
+
+    private TlvHeader tlvHeader;
+    private byte[] result;
+
+
+    @Before
+    public void setUp() throws Exception {
+        tlvHeader = new TlvHeader();
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        tlvHeader = null;
+        result = null;
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(tlvHeader.toString(), is(notNullValue()));
+    }
+
+    /**
+     * Tests tlvLength() getter method.
+     */
+    @Test
+    public void testGetTlvLength() throws Exception {
+        tlvHeader.setTlvLength(2);
+        assertThat(tlvHeader.tlvLength(), is(2));
+    }
+
+    /**
+     * Tests tlvLength() setter method.
+     */
+    @Test
+    public void testSetTlvLength() throws Exception {
+        tlvHeader.setTlvLength(2);
+        assertThat(tlvHeader.tlvLength(), is(2));
+    }
+
+    /**
+     * Tests tlvType() getter method.
+     */
+    @Test
+    public void testGetTlvType() throws Exception {
+        tlvHeader.setTlvType(2);
+        assertThat(tlvHeader.tlvType(), is(2));
+    }
+
+    /**
+     * Tests tlvType() setter method.
+     */
+    @Test
+    public void testSetTlvType() throws Exception {
+        tlvHeader.setTlvType(2);
+        assertThat(tlvHeader.tlvType(), is(2));
+    }
+
+    /**
+     * Tests getTlvHeaderAsByteArray() method.
+     */
+    @Test
+    public void testGetTlvHeaderAsByteArray() throws Exception {
+        result = tlvHeader.getTlvHeaderAsByteArray();
+        assertThat(result, is(notNullValue()));
+    }
+}
\ No newline at end of file
diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/AdministrativeGroupTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/AdministrativeGroupTest.java
new file mode 100644
index 0000000..3b5b9c2
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/AdministrativeGroupTest.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2016 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.ospf.protocol.lsa.linksubtype;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.ospf.protocol.lsa.TlvHeader;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * Unit test class for AdministrativeGroup.
+ */
+public class AdministrativeGroupTest {
+
+    private final byte[] packet = {0, 0, 0, 1};
+    private AdministrativeGroup administrativeGroup;
+    private ChannelBuffer channelBuffer;
+    private TlvHeader tlvHeader;
+    private byte[] result;
+
+    @Before
+    public void setUp() throws Exception {
+        administrativeGroup = new AdministrativeGroup(new TlvHeader());
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        administrativeGroup = null;
+        channelBuffer = null;
+        tlvHeader = null;
+    }
+
+    /**
+     * Tests administrativeGroup() getter method.
+     */
+    @Test
+    public void testGetAdministrativeGroup() throws Exception {
+        administrativeGroup.setAdministrativeGroup(1);
+        assertThat(administrativeGroup.administrativeGroup(), is(1));
+    }
+
+    /**
+     * Tests administrativeGroup() setter method.
+     */
+    @Test
+    public void testSetAdministrativeGroup() throws Exception {
+        administrativeGroup.setAdministrativeGroup(1);
+        assertThat(administrativeGroup.administrativeGroup(), is(1));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom() throws Exception {
+        tlvHeader = new TlvHeader();
+        tlvHeader.setTlvType(9);
+        tlvHeader.setTlvLength(4);
+        administrativeGroup = new AdministrativeGroup(tlvHeader);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet);
+        administrativeGroup.readFrom(channelBuffer);
+        assertThat(administrativeGroup.administrativeGroup(), is(notNullValue()));
+    }
+
+    /**
+     * Tests asBytes() method.
+     */
+    @Test
+    public void testAsBytes() throws Exception {
+        result = administrativeGroup.asBytes();
+        assertThat(result, is(notNullValue()));
+    }
+
+
+    /**
+     * Tests getLinkSubTypeTlvBodyAsByteArray() method.
+     */
+    @Test
+    public void testGetLinkSubTypeTlvBodyAsByteArray() throws Exception {
+        result = administrativeGroup.getLinkSubTypeTlvBodyAsByteArray();
+        assertThat(result, is(notNullValue()));
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(administrativeGroup.toString(), is(notNullValue()));
+    }
+}
\ No newline at end of file
diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/LinkIdTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/LinkIdTest.java
new file mode 100644
index 0000000..bb68c00
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/LinkIdTest.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright 2016 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.ospf.protocol.lsa.linksubtype;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.ospf.protocol.lsa.TlvHeader;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * Unit test class for LinkId.
+ */
+public class LinkIdTest {
+
+    private final byte[] packet = {1, 1, 1, 1};
+    private final byte[] packet1 = {0, 0, 1};
+    private LinkId linkId;
+    private TlvHeader tlvHeader;
+    private ChannelBuffer channelBuffer;
+    private byte[] result;
+
+    @Before
+    public void setUp() throws Exception {
+        linkId = new LinkId(new TlvHeader());
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        linkId = null;
+        channelBuffer = null;
+        tlvHeader = null;
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(linkId.toString(), is(notNullValue()));
+    }
+
+    /**
+     * Tests linkId() getter method.
+     */
+    @Test
+    public void testGetLinkId() throws Exception {
+        linkId.setLinkId("1.1.1.1");
+        assertThat(linkId, is(notNullValue()));
+    }
+
+    /**
+     * Tests linkId() setter method.
+     */
+    @Test
+    public void testSetLinkId() throws Exception {
+        linkId.setLinkId("1.1.1.1");
+        assertThat(linkId, is(notNullValue()));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom() throws Exception {
+        tlvHeader = new TlvHeader();
+        tlvHeader.setTlvType(2);
+        tlvHeader.setTlvLength(4);
+        linkId = new LinkId(tlvHeader);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet);
+        linkId.readFrom(channelBuffer);
+        assertThat(linkId, is(notNullValue()));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test(expected = Exception.class)
+    public void testReadFrom1() throws Exception {
+        tlvHeader = new TlvHeader();
+        tlvHeader.setTlvType(2);
+        tlvHeader.setTlvLength(4);
+        linkId = new LinkId(tlvHeader);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet1);
+        linkId.readFrom(channelBuffer);
+        assertThat(linkId, is(notNullValue()));
+    }
+
+    /**
+     * Tests asBytes() method.
+     */
+    @Test
+    public void testAsBytes() throws Exception {
+        result = linkId.asBytes();
+        assertThat(result, is(notNullValue()));
+    }
+
+    /**
+     * Tests getLinkSubTypeTlvBodyAsByteArray() method.
+     */
+    @Test
+    public void testGetLinkSubTypeTlvBodyAsByteArray() throws Exception {
+        result = linkId.getLinkSubTypeTlvBodyAsByteArray();
+        assertThat(result, is(notNullValue()));
+    }
+}
\ No newline at end of file
diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/LinkTypeTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/LinkTypeTest.java
new file mode 100644
index 0000000..7e00afc
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/LinkTypeTest.java
@@ -0,0 +1,125 @@
+/*
+ * Copyright 2016 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.ospf.protocol.lsa.linksubtype;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.ospf.protocol.lsa.TlvHeader;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * Unit test class for LinkType.
+ */
+public class LinkTypeTest {
+
+    private final byte[] packet = {0, 0, 0, 1};
+    private final byte[] packet1 = {0, 0, 1};
+    private LinkType linkType;
+    private byte[] result;
+    private ChannelBuffer channelBuffer;
+    private TlvHeader tlvHeader;
+
+    @Before
+    public void setUp() throws Exception {
+        linkType = new LinkType();
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        linkType = null;
+        channelBuffer = null;
+        tlvHeader = null;
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(linkType.toString(), is(notNullValue()));
+    }
+
+    /**
+     * Tests linkType() getter method.
+     */
+    @Test
+    public void testGetLinkType() throws Exception {
+        linkType.setLinkType(1);
+        assertThat(linkType, is(notNullValue()));
+    }
+
+    /**
+     * Tests linkType() setter method.
+     */
+    @Test
+    public void testSetLinkType() throws Exception {
+        linkType.setLinkType(1);
+        assertThat(linkType, is(notNullValue()));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom() throws Exception {
+        tlvHeader = new TlvHeader();
+        tlvHeader.setTlvType(1);
+        tlvHeader.setTlvLength(4);
+        linkType = new LinkType(tlvHeader);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet);
+        linkType.readFrom(channelBuffer);
+        assertThat(linkType, is(notNullValue()));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom1() throws Exception {
+        tlvHeader = new TlvHeader();
+        tlvHeader.setTlvType(1);
+        tlvHeader.setTlvLength(4);
+        linkType = new LinkType(tlvHeader);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet1);
+        linkType.readFrom(channelBuffer);
+        assertThat(linkType, is(notNullValue()));
+    }
+
+    /**
+     * Tests asBytes() method.
+     */
+    @Test
+    public void testAsBytes() throws Exception {
+        result = linkType.asBytes();
+        assertThat(result, is(notNullValue()));
+    }
+
+
+    /**
+     * Tests getLinkSubTypeTlvBodyAsByteArray() method.
+     */
+    @Test
+    public void testGetLinkSubTypeTlvBodyAsByteArray() throws Exception {
+        result = linkType.getLinkSubTypeTlvBodyAsByteArray();
+        assertThat(result, is(notNullValue()));
+    }
+}
\ No newline at end of file
diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/LocalInterfaceIpAddressTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/LocalInterfaceIpAddressTest.java
new file mode 100644
index 0000000..970ae30
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/LocalInterfaceIpAddressTest.java
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2016 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.ospf.protocol.lsa.linksubtype;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.ospf.protocol.lsa.TlvHeader;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * Unit test class for LocalInterfaceIpAddress.
+ */
+public class LocalInterfaceIpAddressTest {
+
+    private final byte[] packet = {1, 1, 1, 1};
+    private final byte[] packet1 = {};
+    private LocalInterfaceIpAddress localInterfaceIpAddress;
+    private TlvHeader tlvHeader;
+    private byte[] result;
+    private ChannelBuffer channelBuffer;
+
+    @Before
+    public void setUp() throws Exception {
+        localInterfaceIpAddress = new LocalInterfaceIpAddress(new TlvHeader());
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        localInterfaceIpAddress = null;
+        tlvHeader = null;
+        result = null;
+        channelBuffer = null;
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(localInterfaceIpAddress.toString(), is(notNullValue()));
+    }
+
+    /**
+     * Tests addLocalInterfaceIPAddress() method.
+     */
+    @Test
+    public void testAddLocalInterfaceIPAddress() throws Exception {
+        localInterfaceIpAddress.addLocalInterfaceIPAddress("1.1.1.1");
+        assertThat(localInterfaceIpAddress, is(notNullValue()));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom() throws Exception {
+        tlvHeader = new TlvHeader();
+        tlvHeader.setTlvType(3);
+        tlvHeader.setTlvLength(4);
+        localInterfaceIpAddress = new LocalInterfaceIpAddress(tlvHeader);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet);
+        localInterfaceIpAddress.readFrom(channelBuffer);
+        assertThat(localInterfaceIpAddress, is(notNullValue()));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom1() throws Exception {
+        tlvHeader = new TlvHeader();
+        tlvHeader.setTlvType(3);
+        tlvHeader.setTlvLength(4);
+        localInterfaceIpAddress = new LocalInterfaceIpAddress(tlvHeader);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet1);
+        localInterfaceIpAddress.readFrom(channelBuffer);
+        assertThat(localInterfaceIpAddress, is(notNullValue()));
+    }
+
+    /**
+     * Tests asBytes() method.
+     */
+    @Test
+    public void testAsBytes() throws Exception {
+        result = localInterfaceIpAddress.asBytes();
+        assertThat(result, is(notNullValue()));
+    }
+
+
+    /**
+     * Tests getLinkSubTypeTlvBodyAsByteArray() method.
+     */
+    @Test
+    public void testGetLinkSubTypeTlvBodyAsByteArray() throws Exception {
+        result = localInterfaceIpAddress.getLinkSubTypeTlvBodyAsByteArray();
+        assertThat(result, is(notNullValue()));
+    }
+}
diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/MaximumBandwidthTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/MaximumBandwidthTest.java
new file mode 100644
index 0000000..e29b611
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/MaximumBandwidthTest.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2016 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.ospf.protocol.lsa.linksubtype;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.ospf.protocol.lsa.TlvHeader;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * Unit test class for MaximumBandwidth.
+ */
+public class MaximumBandwidthTest {
+
+    private final byte[] packet = {0, 0, 0, 0};
+    private MaximumBandwidth maximumBandwidth;
+    private TlvHeader header;
+    private ChannelBuffer channelBuffer;
+    private byte[] result;
+
+    @Before
+    public void setUp() throws Exception {
+        maximumBandwidth = new MaximumBandwidth(new TlvHeader());
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        maximumBandwidth = null;
+        header = null;
+        channelBuffer = null;
+        result = null;
+    }
+
+    /**
+     * Tests maximumBandwidth() setter method.
+     */
+    @Test
+    public void testSetMaximumBandwidth() throws Exception {
+        maximumBandwidth.setMaximumBandwidth(123456.00f);
+        assertThat(maximumBandwidth, is(notNullValue()));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom() throws Exception {
+        header = new TlvHeader();
+        header.setTlvType(6);
+        header.setTlvLength(4);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet);
+        maximumBandwidth = new MaximumBandwidth(header);
+        maximumBandwidth.readFrom(channelBuffer);
+        assertThat(maximumBandwidth, is(notNullValue()));
+    }
+
+    /**
+     * Tests asBytes() method.
+     */
+    @Test
+    public void testAsBytes() throws Exception {
+        result = maximumBandwidth.asBytes();
+        assertThat(result, is(notNullValue()));
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(maximumBandwidth.toString(), is(notNullValue()));
+    }
+}
diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/MaximumReservableBandwidthTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/MaximumReservableBandwidthTest.java
new file mode 100644
index 0000000..95506ca
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/MaximumReservableBandwidthTest.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2016 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.ospf.protocol.lsa.linksubtype;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.ospf.protocol.lsa.TlvHeader;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * Unit test class for MaximumReservableBandwidth.
+ */
+public class MaximumReservableBandwidthTest {
+
+    private final byte[] packet = {0, 0, 0, 0};
+    private MaximumReservableBandwidth maximumReservableBandwidth;
+    private TlvHeader header;
+    private ChannelBuffer channelBuffer;
+    private byte[] result;
+
+    @Before
+    public void setUp() throws Exception {
+        maximumReservableBandwidth = new MaximumReservableBandwidth(new TlvHeader());
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        maximumReservableBandwidth = null;
+        header = null;
+        channelBuffer = null;
+        result = null;
+    }
+
+
+    /**
+     * Tests maximumBandwidth() setter method.
+     */
+    @Test
+    public void testSetMaximumBandwidth() throws Exception {
+        maximumReservableBandwidth.setMaximumBandwidth(123456.78f);
+        assertThat(maximumReservableBandwidth, is(notNullValue()));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom() throws Exception {
+        header = new TlvHeader();
+        header.setTlvType(6);
+        header.setTlvLength(4);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet);
+        maximumReservableBandwidth = new MaximumReservableBandwidth(header);
+        maximumReservableBandwidth.readFrom(channelBuffer);
+        assertThat(maximumReservableBandwidth, is(notNullValue()));
+    }
+
+    /**
+     * Tests asBytes() method.
+     */
+    @Test
+    public void testAsBytes() throws Exception {
+        result = maximumReservableBandwidth.asBytes();
+        assertThat(result, is(notNullValue()));
+    }
+
+
+    /**
+     * Tests getLinkSubTypeTlvBodyAsByteArray() method.
+     */
+    @Test
+    public void testGetLinkSubTypeTlvBodyAsByteArray() throws Exception {
+        result = maximumReservableBandwidth.getLinksubTypeTlvBodyAsByteArray();
+        assertThat(result, is(notNullValue()));
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(maximumReservableBandwidth.toString(), is(notNullValue()));
+    }
+}
diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/RemoteInterfaceIpAddressTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/RemoteInterfaceIpAddressTest.java
new file mode 100644
index 0000000..920bf1f
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/RemoteInterfaceIpAddressTest.java
@@ -0,0 +1,119 @@
+/*
+ * Copyright 2016 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.ospf.protocol.lsa.linksubtype;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.ospf.protocol.lsa.TlvHeader;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+
+/**
+ * Unit test class for RemoteInterfaceIpAddress.
+ */
+public class RemoteInterfaceIpAddressTest {
+
+    private final byte[] packet = {1, 1, 1, 1};
+    private final byte[] packet1 = {};
+    private byte[] result;
+    private TlvHeader tlvHeader;
+    private RemoteInterfaceIpAddress remoteInterfaceIpAddress;
+    private ChannelBuffer channelBuffer;
+
+    @Before
+    public void setUp() throws Exception {
+        remoteInterfaceIpAddress = new RemoteInterfaceIpAddress(new TlvHeader());
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        remoteInterfaceIpAddress = null;
+        result = null;
+        tlvHeader = null;
+        channelBuffer = null;
+    }
+
+    /**
+     * Tests addRemoteInterfaceAddress() method.
+     */
+    @Test
+    public void testAddRemoteInterfaceIpAddress() throws Exception {
+        remoteInterfaceIpAddress.addRemoteInterfaceAddress("1.1.1.1");
+        assertThat(remoteInterfaceIpAddress, is(notNullValue()));
+    }
+
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom() throws Exception {
+        tlvHeader = new TlvHeader();
+        tlvHeader.setTlvType(4);
+        tlvHeader.setTlvLength(4);
+        remoteInterfaceIpAddress = new RemoteInterfaceIpAddress(tlvHeader);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet);
+        remoteInterfaceIpAddress.readFrom(channelBuffer);
+        assertThat(remoteInterfaceIpAddress, is(notNullValue()));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom1() throws Exception {
+        tlvHeader = new TlvHeader();
+        tlvHeader.setTlvType(4);
+        tlvHeader.setTlvLength(4);
+        remoteInterfaceIpAddress = new RemoteInterfaceIpAddress(tlvHeader);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet1);
+        remoteInterfaceIpAddress.readFrom(channelBuffer);
+        assertThat(remoteInterfaceIpAddress, is(notNullValue()));
+    }
+
+    /**
+     * Tests asBytes() method.
+     */
+    @Test
+    public void testAsBytes() throws Exception {
+        result = remoteInterfaceIpAddress.asBytes();
+        assertThat(result, is(notNullValue()));
+    }
+
+
+    /**
+     * Tests getLinkSubTypeTlvBodyAsByteArray() method.
+     */
+    @Test
+    public void testGetLinkSubTypeTlvBodyAsByteArray() throws Exception {
+        result = remoteInterfaceIpAddress.getLinkSubTypeTlvBodyAsByteArray();
+        assertThat(result, is(notNullValue()));
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(remoteInterfaceIpAddress.toString(), is(notNullValue()));
+    }
+}
\ No newline at end of file
diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/TrafficEngineeringMetricTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/TrafficEngineeringMetricTest.java
new file mode 100644
index 0000000..799cb97
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/TrafficEngineeringMetricTest.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2016 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.ospf.protocol.lsa.linksubtype;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.ospf.protocol.lsa.TlvHeader;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.notNullValue;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+/**
+ * Unit test class for TrafficEngineeringMetric.
+ */
+public class TrafficEngineeringMetricTest {
+
+    private final byte[] packet = {0, 0, 1, 1};
+    private TrafficEngineeringMetric trafficEngineeringMetric;
+    private TlvHeader header;
+    private byte[] result;
+    private ChannelBuffer channelBuffer;
+
+    @Before
+    public void setUp() throws Exception {
+        trafficEngineeringMetric = new TrafficEngineeringMetric(new TlvHeader());
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        trafficEngineeringMetric = null;
+        header = null;
+        result = null;
+        channelBuffer = null;
+    }
+
+
+    /**
+     * Tests trafficEngineeringMetric() setter method.
+     */
+    @Test
+    public void testSetTrafficEngineeringMetric() throws Exception {
+        trafficEngineeringMetric.setTrafficEngineeringMetric(123456789L);
+        assertThat(trafficEngineeringMetric, is(notNullValue()));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom() throws Exception {
+        header = new TlvHeader();
+        header.setTlvLength(4);
+        header.setTlvType(5);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet);
+        trafficEngineeringMetric = new TrafficEngineeringMetric(header);
+        trafficEngineeringMetric.readFrom(channelBuffer);
+        assertThat(trafficEngineeringMetric, is(notNullValue()));
+    }
+
+    /**
+     * Tests asBytes() method.
+     */
+    @Test
+    public void testAsBytes() throws Exception {
+        result = trafficEngineeringMetric.asBytes();
+        assertThat(result, is(notNullValue()));
+    }
+
+
+    /**
+     * Tests getLinkSubTypeTlvBodyAsByteArray() method.
+     */
+    @Test
+    public void testGetLinkSubTypeTlvBodyAsByteArray() throws Exception {
+        result = trafficEngineeringMetric.getLinkSubTypeTlvBodyAsByteArray();
+        assertThat(result, is(notNullValue()));
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(trafficEngineeringMetric.toString(), is(notNullValue()));
+    }
+}
\ No newline at end of file
diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/UnknownLinkSubTypeTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/UnknownLinkSubTypeTest.java
new file mode 100644
index 0000000..8f2b31b
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/UnknownLinkSubTypeTest.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2016 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.ospf.protocol.lsa.linksubtype;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.ospf.protocol.lsa.TlvHeader;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * Unit test class for UnknownLinkSubType.
+ */
+public class UnknownLinkSubTypeTest {
+    private final byte[] packet = {0, 114, 0, 4, 0, 0, 0, 1};
+    private UnknownLinkSubType unknownLinkSubType;
+    private TlvHeader header;
+    private ChannelBuffer channelBuffer;
+    private byte[] result;
+
+    @Before
+    public void setUp() throws Exception {
+        unknownLinkSubType = new UnknownLinkSubType(new TlvHeader());
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        unknownLinkSubType = null;
+        header = null;
+    }
+
+    /**
+     * Tests value() getter method.
+     */
+    @Test
+    public void testValue() throws Exception {
+        unknownLinkSubType.setValue(packet);
+        assertThat(unknownLinkSubType.value(), is(notNullValue()));
+    }
+
+    /**
+     * Tests value() setter method.
+     */
+    @Test
+    public void testSetValue() throws Exception {
+        unknownLinkSubType.setValue(packet);
+        assertThat(unknownLinkSubType.value(), is(notNullValue()));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom() throws Exception {
+        header = new TlvHeader();
+        header.setTlvLength(8);
+        header.setTlvType(114);
+        unknownLinkSubType = new UnknownLinkSubType(header);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet);
+        unknownLinkSubType.readFrom(channelBuffer);
+        assertThat(unknownLinkSubType, is(notNullValue()));
+    }
+
+    /**
+     * Tests asBytes() method.
+     */
+    @Test(expected = Exception.class)
+    public void testAsBytes() throws Exception {
+        result = unknownLinkSubType.asBytes();
+        assertThat(result, is(notNullValue()));
+    }
+
+
+    /**
+     * Tests getLinkSubTypeTlvBodyAsByteArray() method.
+     */
+    @Test
+    public void testGetLinkSubTypeTlvBodyAsByteArray() throws Exception {
+        channelBuffer = ChannelBuffers.copiedBuffer(packet);
+        unknownLinkSubType.readFrom(channelBuffer);
+        result = unknownLinkSubType.getLinkSubTypeTlvBodyAsByteArray();
+        assertThat(result, is(notNullValue()));
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(unknownLinkSubType.toString(), is(notNullValue()));
+    }
+}
\ No newline at end of file
diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/UnreservedBandwidthTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/UnreservedBandwidthTest.java
new file mode 100644
index 0000000..0357ea1
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/linksubtype/UnreservedBandwidthTest.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2016 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.ospf.protocol.lsa.linksubtype;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.ospf.protocol.lsa.TlvHeader;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * Unit test class for OspfRouterId.
+ */
+public class UnreservedBandwidthTest {
+
+    private final byte[] packet = {0, 0, 0, 1};
+    private UnreservedBandwidth unreservedBandwidth;
+    private TlvHeader header;
+    private byte[] result;
+    private ChannelBuffer channelBuffer;
+
+    @Before
+    public void setUp() throws Exception {
+        unreservedBandwidth = new UnreservedBandwidth(new TlvHeader());
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        unreservedBandwidth = null;
+        header = null;
+        result = null;
+        channelBuffer = null;
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(unreservedBandwidth.toString(), is(notNullValue()));
+    }
+
+    /**
+     * Tests addUnReservedBandwidth() method.
+     */
+    @Test
+    public void testAddUnReservedBandwidth() throws Exception {
+        unreservedBandwidth.addUnReservedBandwidth(123456.78f);
+        assertThat(unreservedBandwidth, is(notNullValue()));
+    }
+
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom() throws Exception {
+        header = new TlvHeader();
+        header.setTlvLength(4);
+        header.setTlvType(8);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet);
+        unreservedBandwidth = new UnreservedBandwidth(header);
+        unreservedBandwidth.readFrom(channelBuffer);
+        unreservedBandwidth.readFrom(channelBuffer);
+        assertThat(unreservedBandwidth, is(notNullValue()));
+    }
+
+    /**
+     * Tests asBytes() method.
+     */
+    @Test
+    public void testAsBytes() throws Exception {
+        result = unreservedBandwidth.asBytes();
+        assertThat(result, is(notNullValue()));
+    }
+
+
+    /**
+     * Tests getLinkSubTypeTlvBodyAsByteArray() method.
+     */
+    @Test
+    public void testGetLinkSubTypeTLVBodyAsByteArray() throws Exception {
+        result = unreservedBandwidth.getLinkSubTypeTlvBodyAsByteArray();
+        assertThat(result, is(notNullValue()));
+    }
+}
\ No newline at end of file
diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/tlvtypes/LinkTlvTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/tlvtypes/LinkTlvTest.java
new file mode 100644
index 0000000..2387890
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/tlvtypes/LinkTlvTest.java
@@ -0,0 +1,180 @@
+/*
+ * Copyright 2016 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.ospf.protocol.lsa.tlvtypes;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.ospf.protocol.lsa.TlvHeader;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.*;
+
+/**
+ * Unit test class for LinkTlv.
+ */
+public class LinkTlvTest {
+
+    private final byte[] packet1 = {0, 9, 0, 4, 0, 0, 0, 1};
+    private final byte[] packet2 = {0, 1, 0, 4, 0, 0, 0, 1};
+    private final byte[] packet3 = {0, 2, 0, 4, 0, 0, 0, 1};
+    private final byte[] packet4 = {0, 3, 0, 4, 0, 0, 0, 1};
+    private final byte[] packet5 = {0, 4, 0, 4, 0, 0, 0, 1};
+    private final byte[] packet6 = {0, 6, 0, 4, 0, 0, 0, 1};
+    private final byte[] packet7 = {0, 7, 0, 4, 0, 0, 0, 1};
+    private final byte[] packet8 = {0, 8, 0, 4, 0, 0, 0, 1};
+    private final byte[] packet9 = {0, 9, 0, 4, 0, 0, 0, 1,
+            0, 9, 0, 4, 0, 0, 0, 1,
+            0, 1, 0, 4, 0, 0, 0, 1,
+            0, 2, 0, 4, 0, 0, 0, 1,
+            0, 3, 0, 4, 0, 0, 0, 1,
+            0, 4, 0, 4, 0, 0, 0, 1,
+            0, 6, 0, 4, 0, 0, 0, 1,
+            0, 7, 0, 4, 0, 0, 0, 1,
+            0, 8, 0, 4, 0, 0, 0, 1,
+    };
+    private LinkTlv linkTlv;
+    private TlvHeader header;
+    private ChannelBuffer channelBuffer;
+    private byte[] result;
+
+    @Before
+    public void setUp() throws Exception {
+        linkTlv = new LinkTlv(new TlvHeader());
+
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        linkTlv = null;
+        header = null;
+        channelBuffer = null;
+        result = null;
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(linkTlv.toString(), is(notNullValue()));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom() throws Exception {
+
+        header = new TlvHeader();
+        header.setTlvLength(8);
+        header.setTlvType(9);
+        linkTlv = new LinkTlv(header);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet1);
+        linkTlv.readFrom(channelBuffer);
+        assertThat(linkTlv, is(notNullValue()));
+
+        header = new TlvHeader();
+        header.setTlvLength(8);
+        header.setTlvType(1);
+        linkTlv = new LinkTlv(header);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet2);
+        linkTlv.readFrom(channelBuffer);
+        assertThat(linkTlv, is(notNullValue()));
+
+        header = new TlvHeader();
+        header.setTlvLength(8);
+        header.setTlvType(2);
+        linkTlv = new LinkTlv(header);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet3);
+        linkTlv.readFrom(channelBuffer);
+        assertThat(linkTlv, is(notNullValue()));
+
+        header = new TlvHeader();
+        header.setTlvLength(8);
+        header.setTlvType(3);
+        linkTlv = new LinkTlv(header);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet4);
+        linkTlv.readFrom(channelBuffer);
+        assertThat(linkTlv, is(notNullValue()));
+
+        header = new TlvHeader();
+        header.setTlvLength(8);
+        header.setTlvType(4);
+        linkTlv = new LinkTlv(header);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet5);
+        linkTlv.readFrom(channelBuffer);
+        assertThat(linkTlv, is(notNullValue()));
+
+        header = new TlvHeader();
+        header.setTlvLength(8);
+        header.setTlvType(5);
+        linkTlv = new LinkTlv(header);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet1);
+        linkTlv.readFrom(channelBuffer);
+        assertThat(linkTlv, is(notNullValue()));
+
+        header = new TlvHeader();
+        header.setTlvLength(8);
+        header.setTlvType(6);
+        linkTlv = new LinkTlv(header);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet6);
+        linkTlv.readFrom(channelBuffer);
+        assertThat(linkTlv, is(notNullValue()));
+
+        header = new TlvHeader();
+        header.setTlvLength(8);
+        header.setTlvType(7);
+        linkTlv = new LinkTlv(header);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet7);
+        linkTlv.readFrom(channelBuffer);
+        assertThat(linkTlv, is(notNullValue()));
+
+        header = new TlvHeader();
+        header.setTlvLength(8);
+        header.setTlvType(8);
+        linkTlv = new LinkTlv(header);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet8);
+        linkTlv.readFrom(channelBuffer);
+        assertThat(linkTlv, is(notNullValue()));
+        assertThat(linkTlv, instanceOf(LinkTlv.class));
+    }
+
+    /**
+     * Tests asBytes() method.
+     */
+    @Test
+    public void testAsBytes() throws Exception {
+        result = linkTlv.asBytes();
+        assertThat(result, is(notNullValue()));
+    }
+
+
+    /**
+     * Tests getTlvBodyAsByteArray() method.
+     */
+    @Test
+    public void testGetTlvBodyAsByteArray() throws Exception {
+
+        channelBuffer = ChannelBuffers.copiedBuffer(packet9);
+        linkTlv.readFrom(channelBuffer);
+
+        result = linkTlv.getTlvBodyAsByteArray();
+        assertThat(result, is(notNullValue()));
+    }
+}
\ No newline at end of file
diff --git a/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/tlvtypes/RouterTlvTest.java b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/tlvtypes/RouterTlvTest.java
new file mode 100644
index 0000000..9a3d10e
--- /dev/null
+++ b/protocols/ospf/protocol/src/test/java/org/onosproject/ospf/protocol/lsa/tlvtypes/RouterTlvTest.java
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2016 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.ospf.protocol.lsa.tlvtypes;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.packet.Ip4Address;
+import org.onosproject.ospf.protocol.lsa.TlvHeader;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.*;
+
+/**
+ * Unit test class for RouterTlv.
+ */
+public class RouterTlvTest {
+
+    private final byte[] packet = {1, 1, 1, 1};
+    private final byte[] packet1 = {1, 1, 1};
+    private RouterTlv rtlv;
+    private TlvHeader header;
+    private ChannelBuffer channelBuffer;
+    private byte[] result;
+
+    @Before
+    public void setUp() throws Exception {
+        rtlv = new RouterTlv(new TlvHeader());
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        rtlv = null;
+        header = null;
+        channelBuffer = null;
+        result = null;
+    }
+
+    /**
+     * Tests routerAddress() getter method.
+     */
+    @Test
+    public void testGetRouterAddress() throws Exception {
+        rtlv.setRouterAddress(Ip4Address.valueOf("1.1.1.1"));
+        assertThat(rtlv.routerAddress(), is(Ip4Address.valueOf("1.1.1.1")));
+    }
+
+    /**
+     * Tests routerAddress() setter method.
+     */
+    @Test
+    public void testSetRouterAddress() throws Exception {
+        rtlv.setRouterAddress(Ip4Address.valueOf("1.1.1.1"));
+        assertThat(rtlv.routerAddress(), is(Ip4Address.valueOf("1.1.1.1")));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test
+    public void testReadFrom() throws Exception {
+        header = new TlvHeader();
+        header.setTlvType(1);
+        header.setTlvLength(4);
+        rtlv = new RouterTlv(header);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet);
+        rtlv.readFrom(channelBuffer);
+        assertThat(rtlv, is(notNullValue()));
+        assertThat(rtlv, instanceOf(RouterTlv.class));
+    }
+
+    /**
+     * Tests readFrom() method.
+     */
+    @Test(expected = Exception.class)
+    public void testReadFrom1() throws Exception {
+        header = new TlvHeader();
+        header.setTlvType(1);
+        header.setTlvLength(4);
+        rtlv = new RouterTlv(header);
+        channelBuffer = ChannelBuffers.copiedBuffer(packet1);
+        rtlv.readFrom(channelBuffer);
+        assertThat(rtlv, is(notNullValue()));
+        assertThat(rtlv, instanceOf(RouterTlv.class));
+    }
+
+    /**
+     * Tests asBytes() method.
+     */
+    @Test(expected = Exception.class)
+    public void testAsBytes() throws Exception {
+        result = rtlv.asBytes();
+        assertThat(result, is(notNullValue()));
+    }
+
+    /**
+     * Tests getTlvBodyAsByteArray() method.
+     */
+    @Test(expected = Exception.class)
+    public void testGetTLVBodyAsByteArray() throws Exception {
+        result = rtlv.getTlvBodyAsByteArray();
+        assertThat(result, is(notNullValue()));
+    }
+
+    /**
+     * Tests to string method.
+     */
+    @Test
+    public void testToString() throws Exception {
+        assertThat(rtlv.toString(), is(notNullValue()));
+    }
+}