diff --git a/src/tlv/lsa-info.cpp b/src/tlv/lsa-info.cpp
new file mode 100644
index 0000000..5349c31
--- /dev/null
+++ b/src/tlv/lsa-info.cpp
@@ -0,0 +1,174 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2015,  The University of Memphis,
+ *                           Regents of the University of California,
+ *                           Arizona Board of Regents.
+ *
+ * This file is part of NLSR (Named-data Link State Routing).
+ * See AUTHORS.md for complete list of NLSR authors and contributors.
+ *
+ * NLSR is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NLSR is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NLSR, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#include "lsa-info.hpp"
+#include "tlv-nlsr.hpp"
+
+#include <ndn-cxx/util/concepts.hpp>
+#include <ndn-cxx/encoding/block-helpers.hpp>
+
+namespace nlsr {
+namespace tlv  {
+
+BOOST_CONCEPT_ASSERT((ndn::WireEncodable<LsaInfo>));
+BOOST_CONCEPT_ASSERT((ndn::WireDecodable<LsaInfo>));
+static_assert(std::is_base_of<ndn::tlv::Error, LsaInfo::Error>::value,
+              "LsaInfo::Error must inherit from tlv::Error");
+
+const ndn::time::milliseconds LsaInfo::INFINITE_EXPIRATION_PERIOD(ndn::time::milliseconds::max());
+
+LsaInfo::LsaInfo()
+  : m_sequenceNumber(0)
+  , m_expirationPeriod(INFINITE_EXPIRATION_PERIOD)
+  , m_hasInfiniteExpirationPeriod(true)
+{
+}
+
+LsaInfo::LsaInfo(const ndn::Block& block)
+{
+  wireDecode(block);
+}
+
+template<bool T>
+size_t
+LsaInfo::wireEncode(ndn::EncodingImpl<T>& block) const
+{
+  size_t totalLength = 0;
+
+  // Absence of an ExpirationPeriod signifies non-expiration
+  if (!m_hasInfiniteExpirationPeriod) {
+    totalLength += ndn::prependNonNegativeIntegerBlock(block,
+                                                       ndn::tlv::nlsr::ExpirationPeriod,
+                                                       m_expirationPeriod.count());
+  }
+
+  totalLength += ndn::prependNonNegativeIntegerBlock(block,
+                                                     ndn::tlv::nlsr::SequenceNumber,
+                                                     m_sequenceNumber);
+
+  totalLength += ndn::prependNestedBlock(block, ndn::tlv::nlsr::OriginRouter, m_originRouter);
+
+  totalLength += block.prependVarNumber(totalLength);
+  totalLength += block.prependVarNumber(ndn::tlv::nlsr::LsaInfo);
+
+  return totalLength;
+}
+
+template size_t
+LsaInfo::wireEncode<true>(ndn::EncodingImpl<true>& block) const;
+
+template size_t
+LsaInfo::wireEncode<false>(ndn::EncodingImpl<false>& block) const;
+
+const ndn::Block&
+LsaInfo::wireEncode() const
+{
+  if (m_wire.hasWire()) {
+    return m_wire;
+  }
+
+  ndn::EncodingEstimator estimator;
+  size_t estimatedSize = wireEncode(estimator);
+
+  ndn::EncodingBuffer buffer(estimatedSize, 0);
+  wireEncode(buffer);
+
+  m_wire = buffer.block();
+
+  return m_wire;
+}
+
+void
+LsaInfo::wireDecode(const ndn::Block& wire)
+{
+  m_originRouter.clear();
+  m_sequenceNumber = 0;
+  m_expirationPeriod = ndn::time::milliseconds::min();
+
+  m_wire = wire;
+
+  if (m_wire.type() != ndn::tlv::nlsr::LsaInfo) {
+    std::stringstream error;
+    error << "Expected LsaInfo Block, but Block is of a different type: #"
+          << m_wire.type();
+    throw Error(error.str());
+  }
+
+  m_wire.parse();
+
+  ndn::Block::element_const_iterator val = m_wire.elements_begin();
+
+  if (val != m_wire.elements_end() && val->type() == ndn::tlv::nlsr::OriginRouter) {
+    val->parse();
+    ndn::Block::element_const_iterator it = val->elements_begin();
+
+    if (it != val->elements_end() && it->type() == ndn::tlv::Name) {
+      m_originRouter.wireDecode(*it);
+    }
+    else {
+      throw Error("OriginRouter: Missing required Name field");
+    }
+
+    ++val;
+  }
+  else {
+    throw Error("Missing required OriginRouter field");
+  }
+
+  if (val != m_wire.elements_end() && val->type() == ndn::tlv::nlsr::SequenceNumber) {
+    m_sequenceNumber = ndn::readNonNegativeInteger(*val);
+    ++val;
+  }
+  else {
+    throw Error("Missing required SequenceNumber field");
+  }
+
+  if (val != m_wire.elements_end() && val->type() == ndn::tlv::nlsr::ExpirationPeriod) {
+    m_expirationPeriod = ndn::time::milliseconds(ndn::readNonNegativeInteger(*val));
+    m_hasInfiniteExpirationPeriod = false;
+  }
+  else {
+    m_expirationPeriod = INFINITE_EXPIRATION_PERIOD;
+    m_hasInfiniteExpirationPeriod = true;
+  }
+}
+
+std::ostream&
+operator<<(std::ostream& os, const LsaInfo& lsaInfo)
+{
+  os << "LsaInfo("
+     << "OriginRouter: " << lsaInfo.getOriginRouter() << ", "
+     << "SequenceNumber: " << lsaInfo.getSequenceNumber() << ", ";
+
+  if (!lsaInfo.hasInfiniteExpirationPeriod()) {
+    os << "ExpirationPeriod: " << lsaInfo.getExpirationPeriod();
+  }
+  else {
+    os << "ExpirationPeriod: Infinity";
+  }
+
+  os << ")";
+
+  return os;
+}
+
+} // namespace tlv
+} // namespace nlsr