diff --git a/src/util/logger.cpp b/src/util/logger.cpp
new file mode 100644
index 0000000..04ad954
--- /dev/null
+++ b/src/util/logger.cpp
@@ -0,0 +1,113 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2016 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library 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 Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#include "logger.hpp"
+
+#include "logging.hpp"
+#include "time.hpp"
+
+#include <cinttypes>
+#include <stdio.h>
+#include <type_traits>
+
+namespace ndn {
+namespace util {
+
+std::ostream&
+operator<<(std::ostream& os, LogLevel level)
+{
+  switch (level) {
+  case LogLevel::FATAL:
+    return os << "FATAL";
+  case LogLevel::NONE:
+    return os << "NONE";
+  case LogLevel::ERROR:
+    return os << "ERROR";
+  case LogLevel::WARN:
+    return os << "WARN";
+  case LogLevel::INFO:
+    return os << "INFO";
+  case LogLevel::DEBUG:
+    return os << "DEBUG";
+  case LogLevel::TRACE:
+    return os << "TRACE";
+  case LogLevel::ALL:
+    return os << "ALL";
+  }
+
+  BOOST_THROW_EXCEPTION(std::invalid_argument("unknown log level " + to_string(static_cast<int>(level))));
+}
+
+LogLevel
+parseLogLevel(const std::string& s)
+{
+  if (s == "FATAL")
+    return LogLevel::FATAL;
+  else if (s == "NONE")
+    return LogLevel::NONE;
+  else if (s == "ERROR")
+    return LogLevel::ERROR;
+  else if (s == "WARN")
+    return LogLevel::WARN;
+  else if (s == "INFO")
+    return LogLevel::INFO;
+  else if (s == "DEBUG")
+    return LogLevel::DEBUG;
+  else if (s == "TRACE")
+    return LogLevel::TRACE;
+  else if (s == "ALL")
+    return LogLevel::ALL;
+
+  BOOST_THROW_EXCEPTION(std::invalid_argument("unrecognized log level '" + s + "'"));
+}
+
+Logger::Logger(const std::string& name)
+  : m_moduleName(name)
+{
+  this->setLevel(LogLevel::NONE);
+  Logging::addLogger(*this);
+}
+
+std::ostream&
+operator<<(std::ostream& os, const LoggerTimestamp&)
+{
+  using namespace ndn::time;
+
+  static const microseconds::rep ONE_SECOND = 1000000;
+  microseconds::rep usecs = duration_cast<microseconds>(
+                            system_clock::now().time_since_epoch()).count();
+
+  // 10 (whole seconds) + '.' + 6 (fraction) + '\0'
+  char buffer[10 + 1 + 6 + 1];
+  BOOST_ASSERT_MSG(usecs / ONE_SECOND <= 9999999999L,
+                   "whole seconds cannot fit in 10 characters");
+
+  static_assert(std::is_same<microseconds::rep, int_least64_t>::value,
+                "PRIdLEAST64 is incompatible with microseconds::rep");
+  // std::snprintf unavailable in some environments <https://redmine.named-data.net/issues/2299>
+  snprintf(buffer, sizeof(buffer), "%" PRIdLEAST64 ".%06" PRIdLEAST64,
+           usecs / ONE_SECOND, usecs % ONE_SECOND);
+
+  return os << buffer;
+}
+
+} // namespace util
+} // namespace ndn
diff --git a/src/util/logger.hpp b/src/util/logger.hpp
new file mode 100644
index 0000000..58e7b2a
--- /dev/null
+++ b/src/util/logger.hpp
@@ -0,0 +1,167 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2016 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library 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 Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#ifndef NDN_UTIL_LOGGER_HPP
+#define NDN_UTIL_LOGGER_HPP
+
+#include "../common.hpp"
+
+#include <boost/log/common.hpp>
+#include <boost/log/sources/logger.hpp>
+#include <atomic>
+
+namespace ndn {
+namespace util {
+
+/** \brief indicates the severity level of a log message
+ */
+enum class LogLevel {
+  FATAL   = -1,   ///< fatal (will be logged unconditionally)
+  NONE    = 0,    ///< no messages
+  ERROR   = 1,    ///< serious error messages
+  WARN    = 2,    ///< warning messages
+  INFO    = 3,    ///< informational messages
+  DEBUG   = 4,    ///< debug messages
+  TRACE   = 5,    ///< trace messages (most verbose)
+  ALL     = 255   ///< all messages
+};
+
+/** \brief output LogLevel as string
+ *  \throw std::invalid_argument unknown \p level
+ */
+std::ostream&
+operator<<(std::ostream& os, LogLevel level);
+
+/** \brief parse LogLevel from string
+ *  \throw std::invalid_argument unknown level name
+ */
+LogLevel
+parseLogLevel(const std::string& s);
+
+/** \brief represents a logger in logging facility
+ *  \note User should declare a new logger with \p NDN_CXX_LOG_INIT macro.
+ */
+class Logger : public boost::log::sources::logger_mt
+{
+public:
+  explicit
+  Logger(const std::string& name);
+
+  const std::string&
+  getModuleName() const
+  {
+    return m_moduleName;
+  }
+
+  bool
+  isLevelEnabled(LogLevel level) const
+  {
+    return m_currentLevel.load(std::memory_order_relaxed) >= level;
+  }
+
+  void
+  setLevel(LogLevel level)
+  {
+    m_currentLevel.store(level, std::memory_order_relaxed);
+  }
+
+private:
+  const std::string m_moduleName;
+  std::atomic<LogLevel> m_currentLevel;
+};
+
+/** \brief declare a log module
+ */
+#define NDN_CXX_LOG_INIT(name) \
+  namespace { \
+    inline ::ndn::util::Logger& getNdnCxxLogger() \
+    { \
+      static ::ndn::util::Logger logger(BOOST_STRINGIZE(name)); \
+      return logger; \
+    } \
+  } \
+  struct ndn_cxx__allow_trailing_semicolon
+
+/** \brief a tag that writes a timestamp upon stream output
+ *  \code
+ *  std::clog << LoggerTimestamp();
+ *  \endcode
+ */
+struct LoggerTimestamp
+{
+};
+
+/** \brief write a timestamp to \p os
+ *  \note This function is thread-safe.
+ */
+std::ostream&
+operator<<(std::ostream& os, const LoggerTimestamp&);
+
+#if (BOOST_VERSION >= 105900) && (BOOST_VERSION < 106000)
+// workaround Boost bug 11549
+#define NDN_CXX_BOOST_LOG(x) BOOST_LOG(x) << ""
+#else
+#define NDN_CXX_BOOST_LOG(x) BOOST_LOG(x)
+#endif
+
+#define NDN_CXX_LOG(lvl, lvlstr, expression) \
+  do { \
+    if (getNdnCxxLogger().isLevelEnabled(::ndn::util::LogLevel::lvl)) { \
+      NDN_CXX_BOOST_LOG(getNdnCxxLogger()) << ::ndn::util::LoggerTimestamp{} \
+        << " " BOOST_STRINGIZE(lvlstr) ": [" << getNdnCxxLogger().getModuleName() << "] " \
+        << expression; \
+    } \
+  } while (false)
+
+/** \brief log at TRACE level
+ *  \pre A log module must be declared in the same translation unit.
+ */
+#define NDN_CXX_LOG_TRACE(expression) NDN_CXX_LOG(TRACE, TRACE, expression)
+
+/** \brief log at DEBUG level
+ *  \pre A log module must be declared in the same translation unit.
+ */
+#define NDN_CXX_LOG_DEBUG(expression) NDN_CXX_LOG(DEBUG, DEBUG, expression)
+
+/** \brief log at INFO level
+ *  \pre A log module must be declared in the same translation unit.
+ */
+#define NDN_CXX_LOG_INFO(expression) NDN_CXX_LOG(INFO, INFO, expression)
+
+/** \brief log at WARN level
+ *  \pre A log module must be declared in the same translation unit.
+ */
+#define NDN_CXX_LOG_WARN(expression) NDN_CXX_LOG(WARN, WARNING, expression)
+
+/** \brief log at ERROR level
+ *  \pre A log module must be declared in the same translation unit.
+ */
+#define NDN_CXX_LOG_ERROR(expression) NDN_CXX_LOG(ERROR, ERROR, expression)
+
+/** \brief log at FATAL level
+ *  \pre A log module must be declared in the same translation unit.
+ */
+#define NDN_CXX_LOG_FATAL(expression) NDN_CXX_LOG(FATAL, FATAL, expression)
+
+} // namespace util
+} // namespace ndn
+
+#endif // NDN_UTIL_LOGGER_HPP
diff --git a/src/util/logging.cpp b/src/util/logging.cpp
new file mode 100644
index 0000000..dd10c4d
--- /dev/null
+++ b/src/util/logging.cpp
@@ -0,0 +1,209 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2016 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library 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 Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#include "logging.hpp"
+#include "logger.hpp"
+
+#include <boost/log/expressions.hpp>
+#include <cstdlib>
+#include <fstream>
+
+namespace ndn {
+namespace util {
+
+static const LogLevel INITIAL_DEFAULT_LEVEL = LogLevel::NONE;
+
+Logging&
+Logging::get()
+{
+  // Initialization of block-scope variables with static storage duration is thread-safe.
+  // See ISO C++ standard [stmt.dcl]/4
+  static Logging instance;
+  return instance;
+}
+
+Logging::Logging()
+{
+  this->setDestinationImpl(shared_ptr<std::ostream>(&std::clog, bind([]{})));
+
+  const char* environ = std::getenv("NDN_CXX_LOG");
+  if (environ != nullptr) {
+    this->setLevelImpl(environ);
+  }
+}
+
+void
+Logging::addLoggerImpl(Logger& logger)
+{
+  std::lock_guard<std::mutex> lock(m_mutex);
+
+  const std::string& moduleName = logger.getModuleName();
+  m_loggers.insert({moduleName, &logger});
+
+  auto levelIt = m_enabledLevel.find(moduleName);
+  if (levelIt == m_enabledLevel.end()) {
+    levelIt = m_enabledLevel.find("*");
+  }
+  LogLevel level = levelIt == m_enabledLevel.end() ? INITIAL_DEFAULT_LEVEL : levelIt->second;
+  logger.setLevel(level);
+}
+
+#ifdef NDN_CXX_HAVE_TESTS
+bool
+Logging::removeLogger(Logger& logger)
+{
+  const std::string& moduleName = logger.getModuleName();
+  auto range = m_loggers.equal_range(moduleName);
+  for (auto i = range.first; i != range.second; ++i) {
+    if (i->second == &logger) {
+      m_loggers.erase(i);
+      return true;
+    }
+  }
+  return false;
+}
+#endif // NDN_CXX_HAVE_TESTS
+
+void
+Logging::setLevelImpl(const std::string& moduleName, LogLevel level)
+{
+  std::lock_guard<std::mutex> lock(m_mutex);
+
+  if (moduleName == "*") {
+    this->setDefaultLevel(level);
+    return;
+  }
+
+  m_enabledLevel[moduleName] = level;
+  auto range = m_loggers.equal_range(moduleName);
+  for (auto i = range.first; i != range.second; ++i) {
+    i->second->setLevel(level);
+  }
+}
+
+void
+Logging::setDefaultLevel(LogLevel level)
+{
+  m_enabledLevel.clear();
+  m_enabledLevel["*"] = level;
+
+  for (auto i = m_loggers.begin(); i != m_loggers.end(); ++i) {
+    i->second->setLevel(level);
+  }
+}
+
+void
+Logging::setLevelImpl(const std::string& config)
+{
+  std::stringstream ss(config);
+  std::string configModule;
+  while (std::getline(ss, configModule, ':')) {
+    size_t ind = configModule.find('=');
+    if (ind == std::string::npos) {
+      BOOST_THROW_EXCEPTION(std::invalid_argument("malformed logging config: '=' is missing"));
+    }
+
+    std::string moduleName = configModule.substr(0, ind);
+    LogLevel level = parseLogLevel(configModule.substr(ind+1));
+
+    this->setLevelImpl(moduleName, level);
+  }
+}
+
+#ifdef NDN_CXX_HAVE_TESTS
+std::string
+Logging::getLevels() const
+{
+  std::ostringstream os;
+
+  auto defaultLevelIt = m_enabledLevel.find("*");
+  if (defaultLevelIt != m_enabledLevel.end()) {
+    os << "*=" << defaultLevelIt->second << ':';
+  }
+
+  for (auto it = m_enabledLevel.begin(); it != m_enabledLevel.end(); ++it) {
+    if (it->first == "*") {
+      continue;
+    }
+    os << it->first << '=' << it->second << ':';
+  }
+
+  std::string s = os.str();
+  if (!s.empty()) {
+    s.pop_back(); // delete last ':'
+  }
+  return s;
+}
+#endif // NDN_CXX_HAVE_TESTS
+
+#ifdef NDN_CXX_HAVE_TESTS
+void
+Logging::resetLevels()
+{
+  this->setDefaultLevel(INITIAL_DEFAULT_LEVEL);
+  m_enabledLevel.clear();
+}
+#endif // NDN_CXX_HAVE_TESTS
+
+void
+Logging::setDestination(std::ostream& os)
+{
+  setDestination(shared_ptr<std::ostream>(&os, bind([]{})));
+}
+
+void
+Logging::setDestinationImpl(shared_ptr<std::ostream> os)
+{
+  std::lock_guard<std::mutex> lock(m_mutex);
+
+  m_destination = os;
+
+  auto backend = boost::make_shared<boost::log::sinks::text_ostream_backend>();
+  backend->auto_flush(true);
+  backend->add_stream(boost::shared_ptr<std::ostream>(os.get(), bind([]{})));
+
+  if (m_sink != nullptr) {
+    boost::log::core::get()->remove_sink(m_sink);
+    m_sink->flush();
+    m_sink.reset();
+  }
+
+  m_sink = boost::make_shared<Sink>(backend);
+  m_sink->set_formatter(boost::log::expressions::stream << boost::log::expressions::message);
+  boost::log::core::get()->add_sink(m_sink);
+}
+
+#ifdef NDN_CXX_HAVE_TESTS
+shared_ptr<std::ostream>
+Logging::getDestination()
+{
+  return m_destination;
+}
+#endif // NDN_CXX_HAVE_TESTS
+
+void
+Logging::flushImpl()
+{
+  m_sink->flush();
+}
+
+} // namespace util
+} // namespace ndn
diff --git a/src/util/logging.hpp b/src/util/logging.hpp
new file mode 100644
index 0000000..af000c4
--- /dev/null
+++ b/src/util/logging.hpp
@@ -0,0 +1,187 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2016 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library 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 Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#ifndef NDN_UTIL_LOGGING_HPP
+#define NDN_UTIL_LOGGING_HPP
+
+#include "../common.hpp"
+
+#include <boost/log/sinks.hpp>
+#include <mutex>
+#include <unordered_map>
+
+namespace ndn {
+namespace util {
+
+enum class LogLevel;
+class Logger;
+
+/** \brief controls the logging facility
+ *
+ *  \note Public static methods are thread safe.
+ *        Non-public methods are not guaranteed to be thread safe.
+ */
+class Logging : noncopyable
+{
+public:
+  /** \brief register a new logger
+   *  \note App should declare a new logger with \p NDN_CXX_LOG_INIT macro.
+   */
+  static void
+  addLogger(Logger& logger);
+
+  /** \brief set severity level
+   *  \param moduleName logger name, or "*" for default level
+   *  \param level minimum severity level
+   *
+   *  Log messages are output only if its severity is greater than the set minimum severity level.
+   *  Initial default severity level is \p LogLevel::NONE which enables FATAL only.
+   *
+   *  Changing the default level overwrites individual settings.
+   */
+  static void
+  setLevel(const std::string& moduleName, LogLevel level);
+
+  /** \brief set severity levels with a config string
+   *  \param config colon-separate key=value pairs
+   *  \throw std::invalid_argument config string is malformed
+   *
+   *  \code
+   *  Logging::setSeverityLevels("*=INFO:Face=DEBUG:NfdController=WARN");
+   *  \endcode
+   *  is equivalent to
+   *  \code
+   *  Logging::setSeverityLevel("*", LogLevel::INFO);
+   *  Logging::setSeverityLevel("Face", LogLevel::DEBUG);
+   *  Logging::setSeverityLevel("NfdController", LogLevel::WARN);
+   *  \endcode
+   */
+  static void
+  setLevel(const std::string& config);
+
+  /** \brief set log destination
+   *  \param os a stream for log output
+   *
+   *  Initial destination is \p std::clog .
+   */
+  static void
+  setDestination(shared_ptr<std::ostream> os);
+
+  /** \brief set log destination
+   *  \param os a stream for log output; caller must ensure this is valid
+   *            until setDestination is invoked again or program exits
+   *
+   *  This is equivalent to setDestination(shared_ptr<std::ostream>(&os, nullDeleter))
+   */
+  static void
+  setDestination(std::ostream& os);
+
+  /** \brief flush log backend
+   *
+   *  This ensures log messages are written to the destination stream.
+   */
+  static void
+  flush();
+
+private:
+  Logging();
+
+  void
+  addLoggerImpl(Logger& logger);
+
+  void
+  setLevelImpl(const std::string& moduleName, LogLevel level);
+
+  void
+  setDefaultLevel(LogLevel level);
+
+  void
+  setLevelImpl(const std::string& config);
+
+  void
+  setDestinationImpl(shared_ptr<std::ostream> os);
+
+  void
+  flushImpl();
+
+NDN_CXX_PUBLIC_WITH_TESTS_ELSE_PRIVATE:
+  static Logging&
+  get();
+
+#ifdef NDN_CXX_HAVE_TESTS
+  bool
+  removeLogger(Logger& logger);
+
+  std::string
+  getLevels() const;
+
+  void
+  resetLevels();
+
+  shared_ptr<std::ostream>
+  getDestination();
+#endif // NDN_CXX_HAVE_TESTS
+
+private:
+  std::mutex m_mutex;
+  std::unordered_map<std::string, LogLevel> m_enabledLevel; ///< moduleName => minimum level
+  std::unordered_multimap<std::string, Logger*> m_loggers; ///< moduleName => logger
+
+  shared_ptr<std::ostream> m_destination;
+  typedef boost::log::sinks::asynchronous_sink<boost::log::sinks::text_ostream_backend> Sink;
+  boost::shared_ptr<Sink> m_sink;
+};
+
+inline void
+Logging::addLogger(Logger& logger)
+{
+  get().addLoggerImpl(logger);
+}
+
+inline void
+Logging::setLevel(const std::string& moduleName, LogLevel level)
+{
+  get().setLevelImpl(moduleName, level);
+}
+
+inline void
+Logging::setLevel(const std::string& config)
+{
+  get().setLevelImpl(config);
+}
+
+inline void
+Logging::setDestination(shared_ptr<std::ostream> os)
+{
+  get().setDestinationImpl(os);
+}
+
+inline void
+Logging::flush()
+{
+  get().flushImpl();
+}
+
+
+} // namespace util
+} // namespace ndn
+
+#endif // NDN_UTIL_LOGGING_HPP