diff --git a/tests/daemon/mgmt/face-manager-command-fixture.cpp b/tests/daemon/mgmt/face-manager-command-fixture.cpp
index 989ff7b..8eecf9e 100644
--- a/tests/daemon/mgmt/face-manager-command-fixture.cpp
+++ b/tests/daemon/mgmt/face-manager-command-fixture.cpp
@@ -85,6 +85,24 @@
   }
 }
 
+const Face*
+FaceManagerCommandNode::findFaceByUri(const std::string& uri) const
+{
+  for (const auto& face : faceTable) {
+    if (face.getRemoteUri().toString() == uri) {
+      return &face;
+    }
+  }
+  return nullptr;
+}
+
+FaceId
+FaceManagerCommandNode::findFaceIdByUri(const std::string& uri) const
+{
+  auto face = findFaceByUri(uri);
+  return face != nullptr ? face->getId() : face::INVALID_FACEID;
+}
+
 FaceManagerCommandFixture::FaceManagerCommandFixture()
   : node1(m_keyChain, 16363)
   , node2(m_keyChain, 26363)
diff --git a/tests/daemon/mgmt/face-manager-command-fixture.hpp b/tests/daemon/mgmt/face-manager-command-fixture.hpp
index 0bde982..bf376f5 100644
--- a/tests/daemon/mgmt/face-manager-command-fixture.hpp
+++ b/tests/daemon/mgmt/face-manager-command-fixture.hpp
@@ -45,7 +45,14 @@
   ~FaceManagerCommandNode();
 
 public:
-  ndn::util::DummyClientFace face; ///< internal client face used by management
+  const Face*
+  findFaceByUri(const std::string& uri) const;
+
+  FaceId
+  findFaceIdByUri(const std::string& uri) const;
+
+public:
+  ndn::util::DummyClientFace face;
   ndn::mgmt::Dispatcher dispatcher;
   shared_ptr<CommandAuthenticator> authenticator;
 
diff --git a/tests/daemon/mgmt/face-manager-create-face.t.cpp b/tests/daemon/mgmt/face-manager-create-face.t.cpp
index ed89388..5cfe952 100644
--- a/tests/daemon/mgmt/face-manager-create-face.t.cpp
+++ b/tests/daemon/mgmt/face-manager-create-face.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2016,  Regents of the University of California,
+ * Copyright (c) 2014-2017,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -23,6 +23,7 @@
  * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "mgmt/face-manager.hpp"
 #include "face-manager-command-fixture.hpp"
 #include "nfd-manager-common-fixture.hpp"
 
@@ -206,8 +207,8 @@
 
     ControlResponse actual(response.getContent().blockFromValue());
     ControlResponse expected(CreateResult().getExpected());
-    BOOST_CHECK_EQUAL(expected.getCode(), actual.getCode());
     BOOST_TEST_MESSAGE(actual.getText());
+    BOOST_CHECK_EQUAL(expected.getCode(), actual.getCode());
 
     if (actual.getBody().hasWire()) {
       ControlParameters expectedParams(FaceType().getParameters());
@@ -249,25 +250,16 @@
   BOOST_CHECK(hasCallbackFired);
 }
 
-
-typedef mpl::vector<// mpl::pair<mpl::pair<TcpFacePersistent, TcpFacePermanent>, TcpFacePermanent>, // no need to check now
-                    // mpl::pair<mpl::pair<TcpFacePermanent, TcpFacePersistent>, TcpFacePersistent>, // no need to check now
-                    mpl::pair<mpl::pair<UdpFacePersistent, UdpFacePermanent>, UdpFacePermanent>,
-                    mpl::pair<mpl::pair<UdpFacePermanent, UdpFacePersistent>, UdpFacePermanent>> FaceTransitions;
-
-
-BOOST_FIXTURE_TEST_CASE_TEMPLATE(ExistingFace, T, FaceTransitions, FaceManagerCommandFixture)
+BOOST_FIXTURE_TEST_CASE(ExistingFace, FaceManagerCommandFixture)
 {
-  typedef typename T::first::first FaceType1;
-  typedef typename T::first::second FaceType2;
-  typedef typename T::second FinalFaceType;
+  using FaceType = UdpFacePersistent;
 
   {
     // create face
 
     Name commandName("/localhost/nfd/faces");
     commandName.append("create");
-    commandName.append(FaceType1().getParameters().wireEncode());
+    commandName.append(FaceType().getParameters().wireEncode());
     auto command = makeInterest(commandName);
     m_keyChain.sign(*command);
 
@@ -275,116 +267,12 @@
     this->advanceClocks(time::milliseconds(1), 5);
   }
 
-  //
-  {
-    // re-create face (= change face persistency)
-
-    Name commandName("/localhost/nfd/faces");
-    commandName.append("create");
-    commandName.append(FaceType2().getParameters().wireEncode());
-    auto command = makeInterest(commandName);
-    m_keyChain.sign(*command);
-
-    bool hasCallbackFired = false;
-    this->node1.face.onSendData.connect([this, command, &hasCallbackFired] (const Data& response) {
-        if (!command->getName().isPrefixOf(response.getName())) {
-          return;
-        }
-
-        ControlResponse actual(response.getContent().blockFromValue());
-        BOOST_REQUIRE_EQUAL(actual.getCode(), 200);
-        BOOST_TEST_MESSAGE(actual.getText());
-
-        ControlParameters expectedParams(FinalFaceType().getParameters());
-        ControlParameters actualParams(actual.getBody());
-        BOOST_REQUIRE(!actualParams.hasUri()); // Uri parameter is only included on command failure
-        BOOST_CHECK_EQUAL(expectedParams.getFacePersistency(), actualParams.getFacePersistency());
-
-        hasCallbackFired = true;
-      });
-
-    this->node1.face.receive(*command);
-    this->advanceClocks(time::milliseconds(1), 5);
-
-    BOOST_CHECK(hasCallbackFired);
-  }
-}
-
-
-class UdpFace
-{
-public:
-  ControlParameters
-  getParameters()
-  {
-    return ControlParameters()
-      .setUri("udp4://127.0.0.1:16363")
-      .setFacePersistency(ndn::nfd::FACE_PERSISTENCY_PERSISTENT);
-  }
-};
-
-
-// Note that the transitions from on-demand TcpFace are intentionally not tested.
-// On-demand TcpFace has a remote endpoint with a randomized port number.  Normal face
-// creation operations will not need to create a face toward a remote port not listened by
-// a channel.
-
-typedef mpl::vector<mpl::pair<UdpFace, UdpFacePersistent>,
-                    mpl::pair<UdpFace, UdpFacePermanent>> OnDemandFaceTransitions;
-
-// need a slightly different logic to test transitions from OnDemand state
-BOOST_FIXTURE_TEST_CASE_TEMPLATE(ExistingFaceOnDemand, T, OnDemandFaceTransitions, FaceManagerCommandFixture)
-{
-  typedef typename T::first  OtherNodeFace;
-  typedef typename T::second FaceType;
+  // find the created face
+  auto foundFace = this->node1.findFaceByUri(FaceType().getParameters().getUri());
+  BOOST_REQUIRE(foundFace != nullptr);
 
   {
-    // create on-demand face
-
-    Name commandName("/localhost/nfd/faces");
-    commandName.append("create");
-    commandName.append(OtherNodeFace().getParameters().wireEncode());
-    auto command = makeInterest(commandName);
-    m_keyChain.sign(*command);
-
-    ndn::util::signal::ScopedConnection connection =
-      this->node2.face.onSendData.connect([this, command] (const Data& response) {
-        if (!command->getName().isPrefixOf(response.getName())) {
-          return;
-        }
-
-        ControlResponse controlResponse(response.getContent().blockFromValue());
-        BOOST_REQUIRE_EQUAL(controlResponse.getText(), "OK");
-        BOOST_REQUIRE_EQUAL(controlResponse.getCode(), 200);
-        BOOST_REQUIRE(!ControlParameters(controlResponse.getBody()).hasUri());
-        uint64_t faceId = ControlParameters(controlResponse.getBody()).getFaceId();
-        auto face = this->node2.faceTable.get(static_cast<FaceId>(faceId));
-
-        // to force creation of on-demand face
-        auto dummyInterest = make_shared<Interest>("/hello/world");
-        face->sendInterest(*dummyInterest);
-      });
-
-    this->node2.face.receive(*command);
-    this->advanceClocks(time::milliseconds(1), 5); // let node2 process command and send Interest
-    std::this_thread::sleep_for(std::chrono::milliseconds(100)); // allow wallclock time for socket IO
-    this->advanceClocks(time::milliseconds(1), 5); // let node1 accept Interest and create on-demand face
-  }
-
-  // make sure there is on-demand face
-  FaceUri onDemandFaceUri(FaceType().getParameters().getUri());
-  const Face* foundFace = nullptr;
-  for (const Face& face : this->node1.faceTable) {
-    if (face.getRemoteUri() == onDemandFaceUri) {
-      foundFace = &face;
-      break;
-    }
-  }
-  BOOST_REQUIRE_MESSAGE(foundFace != nullptr, "on-demand face is not created");
-
-  //
-  {
-    // re-create face (= change face persistency)
+    // re-create face
 
     Name commandName("/localhost/nfd/faces");
     commandName.append("create");
@@ -400,14 +288,12 @@
         }
 
         ControlResponse actual(response.getContent().blockFromValue());
-        BOOST_REQUIRE_EQUAL(actual.getCode(), 200);
+        BOOST_REQUIRE_EQUAL(actual.getCode(), 409);
 
-        ControlParameters expectedParams(FaceType().getParameters());
         ControlParameters actualParams(actual.getBody());
-        BOOST_REQUIRE(!actualParams.hasUri());
-        BOOST_CHECK_EQUAL(actualParams.getFacePersistency(), expectedParams.getFacePersistency());
-        BOOST_CHECK_EQUAL(actualParams.getFaceId(), foundFace->getId());
-        BOOST_CHECK_EQUAL(foundFace->getPersistency(), expectedParams.getFacePersistency());
+        BOOST_CHECK_EQUAL(foundFace->getId(), actualParams.getFaceId());
+        BOOST_CHECK_EQUAL(foundFace->getRemoteUri().toString(), actualParams.getUri());
+        BOOST_CHECK_EQUAL(foundFace->getPersistency(), actualParams.getFacePersistency());
 
         hasCallbackFired = true;
       });
diff --git a/tests/daemon/mgmt/face-manager-update-face.t.cpp b/tests/daemon/mgmt/face-manager-update-face.t.cpp
index df1f97f..6757622 100644
--- a/tests/daemon/mgmt/face-manager-update-face.t.cpp
+++ b/tests/daemon/mgmt/face-manager-update-face.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2016,  Regents of the University of California,
+ * Copyright (c) 2014-2017,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -23,10 +23,15 @@
  * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "mgmt/face-manager.hpp"
+#include "face/generic-link-service.hpp"
 #include "face-manager-command-fixture.hpp"
 #include "nfd-manager-common-fixture.hpp"
+
 #include <ndn-cxx/lp/tags.hpp>
 
+#include <thread>
+
 namespace nfd {
 namespace tests {
 
@@ -56,36 +61,54 @@
     params.setFacePersistency(persistency);
     params.setFlagBit(ndn::nfd::BIT_LOCAL_FIELDS_ENABLED, enableLocalFields);
 
+    createFace(params);
+  }
+
+  void
+  createFace(const ControlParameters& createParams,
+             bool isForOnDemandFace = false)
+  {
     Name commandName("/localhost/nfd/faces/create");
-    commandName.append(params.wireEncode());
+    commandName.append(createParams.wireEncode());
     auto command = makeInterest(commandName);
     m_keyChain.sign(*command);
 
+    // if this creation if for on-demand face then create it on node2
+    FaceManagerCommandNode& target = isForOnDemandFace ? this->node2 : this->node1;
+
     bool hasCallbackFired = false;
-    signal::ScopedConnection connection = this->node1.face.onSendData.connect(
-      [this, command, &hasCallbackFired] (const Data& response) {
+    signal::ScopedConnection connection = target.face.onSendData.connect(
+      [&, command, isForOnDemandFace, this] (const Data& response) {
         if (!command->getName().isPrefixOf(response.getName())) {
           return;
         }
 
         ControlResponse create(response.getContent().blockFromValue());
         BOOST_REQUIRE_EQUAL(create.getCode(), 200);
+        BOOST_REQUIRE(create.getBody().hasWire());
 
-        if (create.getBody().hasWire()) {
-          ControlParameters faceParams(create.getBody());
-          BOOST_REQUIRE(faceParams.hasFaceId());
-          this->faceId = faceParams.getFaceId();
-        }
-        else {
-          BOOST_FAIL("Face creation failed");
-        }
+        ControlParameters faceParams(create.getBody());
+        BOOST_REQUIRE(faceParams.hasFaceId());
+        this->faceId = faceParams.getFaceId();
 
         hasCallbackFired = true;
+
+        if (isForOnDemandFace) {
+          auto face = target.faceTable.get(static_cast<FaceId>(this->faceId));
+
+          // to force creation of on-demand face
+          face->sendInterest(*make_shared<Interest>("/hello/world"));
+        }
       });
 
-    this->node1.face.receive(*command);
+    target.face.receive(*command);
     this->advanceClocks(time::milliseconds(1), 5);
 
+    if (isForOnDemandFace) {
+      std::this_thread::sleep_for(std::chrono::milliseconds(100)); // allow wallclock time for socket IO
+      this->advanceClocks(time::milliseconds(1), 5); // let node1 accept Interest and create on-demand face
+    }
+
     BOOST_REQUIRE(hasCallbackFired);
   }
 
@@ -176,29 +199,63 @@
   });
 }
 
-// TODO #3232: Expected failure until FacePersistency updating implemented
-BOOST_AUTO_TEST_CASE(UpdatePersistency)
+template<bool CAN_CHANGE_PERSISTENCY>
+class UpdatePersistencyDummyTransport : public face::Transport
 {
-  createFace();
+public:
+  UpdatePersistencyDummyTransport()
+  {
+    this->setPersistency(ndn::nfd::FACE_PERSISTENCY_PERSISTENT);
+  }
 
-  ControlParameters requestParams;
-  requestParams.setFaceId(faceId);
-  requestParams.setFacePersistency(ndn::nfd::FACE_PERSISTENCY_PERMANENT);
+protected:
+  bool
+  canChangePersistencyToImpl(ndn::nfd::FacePersistency newPersistency) const override
+  {
+    return CAN_CHANGE_PERSISTENCY;
+  }
 
-  updateFace(requestParams, false, [] (const ControlResponse& actual) {
-    ControlResponse expected(409, "Invalid fields specified");
-    BOOST_CHECK_EQUAL(actual.getCode(), expected.getCode());
-    BOOST_TEST_MESSAGE(actual.getText());
+  void
+  doClose() override
+  {
+  }
 
-    if (actual.getBody().hasWire()) {
-      ControlParameters actualParams(actual.getBody());
+private:
+  void
+  doSend(face::Transport::Packet&& packet) override
+  {
+  }
+};
 
-      BOOST_REQUIRE(actualParams.hasFacePersistency());
-      BOOST_CHECK_EQUAL(actualParams.getFacePersistency(), ndn::nfd::FACE_PERSISTENCY_PERMANENT);
-    }
-    else {
-      BOOST_ERROR("Response does not contain ControlParameters");
-    }
+namespace mpl = boost::mpl;
+
+using UpdatePersistencyTests =
+  mpl::vector<mpl::pair<UpdatePersistencyDummyTransport<true>, CommandSuccess>,
+              mpl::pair<UpdatePersistencyDummyTransport<false>, CommandFailure<409>>>;
+
+BOOST_FIXTURE_TEST_CASE_TEMPLATE(UpdatePersistency, T, UpdatePersistencyTests, FaceManagerUpdateFixture)
+{
+  using TransportType = typename T::first;
+  using ResultType = typename T::second;
+
+  auto face = make_shared<face::Face>(make_unique<face::GenericLinkService>(),
+                                      make_unique<TransportType>());
+  this->node1.faceTable.add(face);
+
+  auto parameters = ControlParameters()
+    .setFaceId(face->getId())
+    .setFacePersistency(ndn::nfd::FACE_PERSISTENCY_PERMANENT);
+
+  updateFace(parameters, false, [] (const ControlResponse& actual) {
+      BOOST_TEST_MESSAGE(actual.getText());
+      BOOST_CHECK_EQUAL(actual.getCode(), ResultType::getExpected().getCode());
+
+      // the response for either 200 or 409 will have a content body
+      BOOST_REQUIRE(actual.getBody().hasWire());
+
+      ControlParameters resp;
+      resp.wireDecode(actual.getBody());
+      BOOST_CHECK_EQUAL(resp.getFacePersistency(), ndn::nfd::FACE_PERSISTENCY_PERMANENT);
   });
 }
 
@@ -413,8 +470,6 @@
   }
 };
 
-namespace mpl = boost::mpl;
-
 typedef mpl::vector<mpl::pair<TcpLocalFieldsEnable, CommandSuccess>,
                     mpl::pair<TcpLocalFieldsDisable, CommandSuccess>,
                     mpl::pair<UdpLocalFieldsEnable, CommandFailure<409>>,
diff --git a/tests/tools/nfdc/face-module.t.cpp b/tests/tools/nfdc/face-module.t.cpp
index 81ea707..5b44a5b 100644
--- a/tests/tools/nfdc/face-module.t.cpp
+++ b/tests/tools/nfdc/face-module.t.cpp
@@ -105,9 +105,25 @@
 
 BOOST_AUTO_TEST_SUITE_END() // ShowCommand
 
-BOOST_FIXTURE_TEST_SUITE(CreateCommand, ExecuteCommandFixture)
+class ExecuteFaceCreateCommandFixture : public ExecuteCommandFixture
+{
+protected:
+  void
+  respond409(FacePersistency persistency)
+  {
+    MOCK_NFD_MGMT_REQUIRE_LAST_COMMAND_IS("/localhost/nfd/faces/create");
+    ControlParameters body;
+    body.setFaceId(1172)
+        .setUri("udp4://100.77.30.65:6363")
+        .setFacePersistency(persistency)
+        .setFlags(0);
+    this->failCommand(409, "conflict-409", body);
+  }
+};
 
-BOOST_AUTO_TEST_CASE(Normal)
+BOOST_FIXTURE_TEST_SUITE(CreateCommand, ExecuteFaceCreateCommandFixture)
+
+BOOST_AUTO_TEST_CASE(Creating)
 {
   this->processInterest = [this] (const Interest& interest) {
     ControlParameters req = MOCK_NFD_MGMT_REQUIRE_LAST_COMMAND_IS("/localhost/nfd/faces/create");
@@ -128,7 +144,64 @@
   BOOST_CHECK(err.is_empty());
 }
 
-BOOST_AUTO_TEST_CASE(Error)
+BOOST_AUTO_TEST_CASE(UpgradingPersistency)
+{
+  bool hasUpdateCommand = false;
+  this->processInterest = [this, &hasUpdateCommand] (const Interest& interest) {
+    if (this->getCommand("/localhost/nfd/faces/create")) {
+      this->respond409(FacePersistency::FACE_PERSISTENCY_ON_DEMAND);
+      return;
+    }
+
+    ControlParameters req = MOCK_NFD_MGMT_REQUIRE_LAST_COMMAND_IS("/localhost/nfd/faces/update");
+    hasUpdateCommand = true;
+    BOOST_REQUIRE(req.hasFaceId());
+    BOOST_CHECK_EQUAL(req.getFaceId(), 1172);
+    BOOST_REQUIRE(req.hasFacePersistency());
+    BOOST_CHECK_EQUAL(req.getFacePersistency(), FacePersistency::FACE_PERSISTENCY_PERSISTENT);
+    BOOST_CHECK(!req.hasFlags());
+
+    ControlParameters resp;
+    resp.setFaceId(1172)
+        .setFacePersistency(FacePersistency::FACE_PERSISTENCY_PERSISTENT)
+        .setFlags(0);
+    this->succeedCommand(resp);
+  };
+
+  this->execute("face create udp://100.77.30.65");
+  BOOST_CHECK(hasUpdateCommand);
+  BOOST_CHECK_EQUAL(exitCode, 0);
+  BOOST_CHECK(out.is_equal("face-updated id=1172 remote=udp4://100.77.30.65:6363 persistency=persistent\n"));
+  BOOST_CHECK(err.is_empty());
+}
+
+BOOST_AUTO_TEST_CASE(NotDowngradingPersistency)
+{
+  this->processInterest = [this] (const Interest& interest) {
+    this->respond409(FacePersistency::FACE_PERSISTENCY_PERMANENT);
+    // no command other than faces/create is expected
+  };
+
+  this->execute("face create udp://100.77.30.65");
+  BOOST_CHECK_EQUAL(exitCode, 0);
+  BOOST_CHECK(out.is_equal("face-exists id=1172 remote=udp4://100.77.30.65:6363 persistency=permanent\n"));
+  BOOST_CHECK(err.is_empty());
+}
+
+BOOST_AUTO_TEST_CASE(SamePersistency)
+{
+  this->processInterest = [this] (const Interest& interest) {
+    this->respond409(FacePersistency::FACE_PERSISTENCY_PERSISTENT);
+    // no command other than faces/create is expected
+  };
+
+  this->execute("face create udp://100.77.30.65");
+  BOOST_CHECK_EQUAL(exitCode, 0);
+  BOOST_CHECK(out.is_equal("face-exists id=1172 remote=udp4://100.77.30.65:6363 persistency=persistent\n"));
+  BOOST_CHECK(err.is_empty());
+}
+
+BOOST_AUTO_TEST_CASE(ErrorCreate)
 {
   this->processInterest = nullptr; // no response
 
@@ -138,6 +211,40 @@
   BOOST_CHECK(err.is_equal("Error 10060 when creating face: request timed out\n"));
 }
 
+BOOST_AUTO_TEST_CASE(ErrorConflict)
+{
+  // Current NFD will not report a 409-conflict with a different remote FaceUri, but this is
+  // allowed by FaceMgmt protocol and nfdc should not attempt to upgrade persistency in this case.
+
+  this->processInterest = [this] (const Interest& interest) {
+    // conflict with udp4://100.77.30.65:6363
+    this->respond409(FacePersistency::FACE_PERSISTENCY_ON_DEMAND);
+  };
+
+  this->execute("face create udp://20.53.73.45");
+  BOOST_CHECK_EQUAL(exitCode, 1);
+  BOOST_CHECK(out.is_empty());
+  BOOST_CHECK(err.is_equal("Error 409 when creating face: conflict-409\n"));
+}
+
+BOOST_AUTO_TEST_CASE(ErrorUpdate)
+{
+  this->processInterest = [this] (const Interest& interest) {
+    if (this->getCommand("/localhost/nfd/faces/create")) {
+      this->respond409(FacePersistency::FACE_PERSISTENCY_ON_DEMAND);
+      return;
+    }
+
+    MOCK_NFD_MGMT_REQUIRE_LAST_COMMAND_IS("/localhost/nfd/faces/update");
+    // no response to faces/update
+  };
+
+  this->execute("face create udp://100.77.30.65");
+  BOOST_CHECK_EQUAL(exitCode, 1);
+  BOOST_CHECK(out.is_empty());
+  BOOST_CHECK(err.is_equal("Error 10060 when upgrading face persistency: request timed out\n"));
+}
+
 BOOST_AUTO_TEST_SUITE_END() // CreateCommand
 
 BOOST_FIXTURE_TEST_SUITE(DestroyCommand, ExecuteCommandFixture)
diff --git a/tests/tools/nfdc/mock-nfd-mgmt-fixture.hpp b/tests/tools/nfdc/mock-nfd-mgmt-fixture.hpp
index 4d55849..485b030 100644
--- a/tests/tools/nfdc/mock-nfd-mgmt-fixture.hpp
+++ b/tests/tools/nfdc/mock-nfd-mgmt-fixture.hpp
@@ -63,7 +63,7 @@
    *  \return command parameters
    */
   ndn::optional<ControlParameters>
-  getCommand(const Name& expectedPrefix)
+  getCommand(const Name& expectedPrefix) const
   {
     if (face.sentInterests.empty() ||
         !expectedPrefix.isPrefixOf(face.sentInterests.back().getName())) {
@@ -93,6 +93,12 @@
     this->sendCommandReply({code, text});
   }
 
+  void
+  failCommand(uint32_t code, const std::string& text, const ControlParameters& resp)
+  {
+    this->sendCommandReply(ndn::nfd::ControlResponse(code, text).setBody(resp.wireEncode()));
+  }
+
 protected: // StatusDataset
   /** \brief send an empty dataset in reply to StatusDataset request
    *  \param prefix dataset prefix without version and segment