pit: add EndpointId field in in-record and out-record

refs: #4842

Change-Id: Id4bca4ad9c2d7c8a2fd975c0b052fb9271b6e47d
diff --git a/daemon/fw/access-strategy.cpp b/daemon/fw/access-strategy.cpp
index 13560a9..b07211b 100644
--- a/daemon/fw/access-strategy.cpp
+++ b/daemon/fw/access-strategy.cpp
@@ -176,7 +176,7 @@
     return;
   }
 
-  auto inRecord = pitEntry->getInRecord(*inFace);
+  auto inRecord = pitEntry->getInRecord(*inFace, 0);
   BOOST_ASSERT(inRecord != pitEntry->in_end());
   // in-record is erased only if Interest is satisfied, and RTO timer should have been cancelled
   // note: if this strategy is extended to send Nacks, that would also erase in-record,
@@ -225,7 +225,7 @@
     return;
   }
 
-  auto outRecord = pitEntry->getOutRecord(inFace);
+  auto outRecord = pitEntry->getOutRecord(inFace, 0);
   if (outRecord == pitEntry->out_end()) { // no out-record
     NFD_LOG_DEBUG(pitEntry->getInterest() << " dataFrom " << inFace.getId() <<
                   " no-out-record");
diff --git a/daemon/fw/asf-measurements.cpp b/daemon/fw/asf-measurements.cpp
index 6302020..17771e0 100644
--- a/daemon/fw/asf-measurements.cpp
+++ b/daemon/fw/asf-measurements.cpp
@@ -114,7 +114,7 @@
 FaceInfo::recordRtt(const shared_ptr<pit::Entry>& pitEntry, const Face& inFace)
 {
   // Calculate RTT
-  pit::OutRecordCollection::const_iterator outRecord = pitEntry->getOutRecord(inFace);
+  pit::OutRecordCollection::const_iterator outRecord = pitEntry->getOutRecord(inFace, 0);
 
   if (outRecord == pitEntry->out_end()) { // no out-record
     NFD_LOG_TRACE(pitEntry->getInterest() << " dataFrom inFace=" << inFace.getId() << " no-out-record");
diff --git a/daemon/fw/best-route-strategy2.cpp b/daemon/fw/best-route-strategy2.cpp
index 03f27dc..7a1f063 100644
--- a/daemon/fw/best-route-strategy2.cpp
+++ b/daemon/fw/best-route-strategy2.cpp
@@ -88,7 +88,7 @@
 
   if (wantUnused) {
     // nexthop must not have unexpired out-record
-    auto outRecord = pitEntry->getOutRecord(outFace);
+    auto outRecord = pitEntry->getOutRecord(outFace, 0);
     if (outRecord != pitEntry->out_end() && outRecord->getExpiry() > now) {
       return false;
     }
@@ -112,7 +112,7 @@
     if (!isNextHopEligible(inFace, interest, *it, pitEntry))
       continue;
 
-    auto outRecord = pitEntry->getOutRecord(it->getFace());
+    auto outRecord = pitEntry->getOutRecord(it->getFace(), 0);
     BOOST_ASSERT(outRecord != pitEntry->out_end());
     if (outRecord->getLastRenewed() < earliestRenewed) {
       found = it;
diff --git a/daemon/fw/forwarder.cpp b/daemon/fw/forwarder.cpp
index b53b82d..f4e5ac9 100644
--- a/daemon/fw/forwarder.cpp
+++ b/daemon/fw/forwarder.cpp
@@ -176,7 +176,7 @@
   ++m_counters.nCsMisses;
 
   // insert in-record
-  pitEntry->insertOrUpdateInRecord(const_cast<Face&>(inFace), interest);
+  pitEntry->insertOrUpdateInRecord(const_cast<Face&>(inFace), 0, interest);
 
   // set PIT expiry timer to the time that the last PIT in-record expires
   auto lastExpiring = std::max_element(pitEntry->in_begin(), pitEntry->in_end(), &compare_InRecord_expiry);
@@ -230,7 +230,7 @@
                 " interest=" << pitEntry->getName());
 
   // insert out-record
-  pitEntry->insertOrUpdateOutRecord(outFace, interest);
+  pitEntry->insertOrUpdateOutRecord(outFace, 0, interest);
 
   // send Interest
   outFace.sendInterest(interest);
@@ -309,7 +309,7 @@
     this->insertDeadNonceList(*pitEntry, &inFace);
 
     // delete PIT entry's out-record
-    pitEntry->deleteOutRecord(inFace);
+    pitEntry->deleteOutRecord(inFace, 0);
   }
   // when more than one PIT entry is matched, trigger strategy: before satisfy Interest,
   // and send Data to all matched out faces
@@ -343,7 +343,7 @@
 
       // clear PIT entry's in and out records
       pitEntry->clearInRecords();
-      pitEntry->deleteOutRecord(inFace);
+      pitEntry->deleteOutRecord(inFace, 0);
     }
 
     // foreach pending downstream
@@ -425,7 +425,7 @@
   }
 
   // has out-record?
-  pit::OutRecordCollection::iterator outRecord = pitEntry->getOutRecord(inFace);
+  pit::OutRecordCollection::iterator outRecord = pitEntry->getOutRecord(inFace, 0);
   // if no out-record found, drop
   if (outRecord == pitEntry->out_end()) {
     NFD_LOG_DEBUG("onIncomingNack face=" << inFace.getId() <<
@@ -472,7 +472,7 @@
   }
 
   // has in-record?
-  pit::InRecordCollection::iterator inRecord = pitEntry->getInRecord(outFace);
+  pit::InRecordCollection::iterator inRecord = pitEntry->getInRecord(outFace, 0);
 
   // if no in-record found, drop
   if (inRecord == pitEntry->in_end()) {
@@ -499,7 +499,7 @@
   nackPkt.setHeader(nack);
 
   // erase in-record
-  pitEntry->deleteInRecord(outFace);
+  pitEntry->deleteInRecord(outFace, 0);
 
   // send Nack on face
   const_cast<Face&>(outFace).sendNack(nackPkt);
@@ -548,7 +548,7 @@
   }
   else {
     // insert outgoing Nonce of a specific face
-    auto outRecord = pitEntry.getOutRecord(*upstream);
+    auto outRecord = pitEntry.getOutRecord(*upstream, 0);
     if (outRecord != pitEntry.getOutRecords().end()) {
       m_deadNonceList.add(pitEntry.getName(), outRecord->getLastNonce());
     }
diff --git a/daemon/fw/multicast-strategy.cpp b/daemon/fw/multicast-strategy.cpp
index 71fa7c1..7732e09 100644
--- a/daemon/fw/multicast-strategy.cpp
+++ b/daemon/fw/multicast-strategy.cpp
@@ -95,7 +95,7 @@
                            << " pitEntry-to=" << outFace.getId());
 
     if (suppressResult == RetxSuppressionResult::FORWARD) {
-      m_retxSuppression.incrementIntervalForOutRecord(*pitEntry->getOutRecord(outFace));
+      m_retxSuppression.incrementIntervalForOutRecord(*pitEntry->getOutRecord(outFace, 0));
     }
     ++nEligibleNextHops;
   }
diff --git a/daemon/fw/ncc-strategy.cpp b/daemon/fw/ncc-strategy.cpp
index 9a16897..778ed2b 100644
--- a/daemon/fw/ncc-strategy.cpp
+++ b/daemon/fw/ncc-strategy.cpp
@@ -143,7 +143,7 @@
   if (pitEntry == nullptr) {
     return;
   }
-  auto inRecord = pitEntry->getInRecord(*inFace);
+  auto inRecord = pitEntry->getInRecord(*inFace, 0);
   if (inRecord == pitEntry->in_end()) {
     return;
   }
diff --git a/daemon/fw/process-nack-traits.cpp b/daemon/fw/process-nack-traits.cpp
index 584bf70..4b2d091 100644
--- a/daemon/fw/process-nack-traits.cpp
+++ b/daemon/fw/process-nack-traits.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2018,  Regents of the University of California,
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -56,7 +56,7 @@
 
   if (nOutRecordsNotNacked == 1) {
     BOOST_ASSERT(lastFaceNotNacked != nullptr);
-    pit::InRecordCollection::iterator inR = pitEntry->getInRecord(*lastFaceNotNacked);
+    pit::InRecordCollection::iterator inR = pitEntry->getInRecord(*lastFaceNotNacked, 0);
     if (inR != pitEntry->in_end()) {
       // one out-record not Nacked, which is also a downstream
       NFD_LOG_DEBUG(nack.getInterest() << " nack-from=" << inFace.getId() <<
diff --git a/daemon/fw/retx-suppression-exponential.cpp b/daemon/fw/retx-suppression-exponential.cpp
index b110588..1275dd9 100644
--- a/daemon/fw/retx-suppression-exponential.cpp
+++ b/daemon/fw/retx-suppression-exponential.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2018,  Regents of the University of California,
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -95,7 +95,7 @@
 RetxSuppressionExponential::decidePerUpstream(pit::Entry& pitEntry, Face& outFace)
 {
   // NEW if outRecord for the face does not exist
-  auto outRecord = pitEntry.getOutRecord(outFace);
+  auto outRecord = pitEntry.getOutRecord(outFace, 0);
   if (outRecord == pitEntry.out_end()) {
     return RetxSuppressionResult::NEW;
   }
diff --git a/daemon/fw/self-learning-strategy.cpp b/daemon/fw/self-learning-strategy.cpp
index 174dca4..42f0f22 100644
--- a/daemon/fw/self-learning-strategy.cpp
+++ b/daemon/fw/self-learning-strategy.cpp
@@ -73,7 +73,7 @@
   const fib::NextHopList& nexthops = fibEntry.getNextHops();
 
   bool isNonDiscovery = interest.getTag<lp::NonDiscoveryTag>() != nullptr;
-  auto inRecordInfo = pitEntry->getInRecord(inFace)->insertStrategyInfo<InRecordInfo>().first;
+  auto inRecordInfo = pitEntry->getInRecord(inFace, 0)->insertStrategyInfo<InRecordInfo>().first;
   if (isNonDiscovery) { // "non-discovery" Interest
     inRecordInfo->isNonDiscoveryInterest = true;
     if (nexthops.empty()) { // return NACK if no matching FIB entry exists
@@ -103,7 +103,7 @@
 SelfLearningStrategy::afterReceiveData(const shared_ptr<pit::Entry>& pitEntry,
                                        const Face& inFace, const Data& data)
 {
-  OutRecordInfo* outRecordInfo = pitEntry->getOutRecord(inFace)->getStrategyInfo<OutRecordInfo>();
+  OutRecordInfo* outRecordInfo = pitEntry->getOutRecord(inFace, 0)->getStrategyInfo<OutRecordInfo>();
   if (outRecordInfo && outRecordInfo->isNonDiscoveryInterest) { // outgoing Interest was non-discovery
     if (!needPrefixAnn(pitEntry)) { // no need to attach a PA (common cases)
       sendDataToAll(pitEntry, inFace, data);
@@ -146,7 +146,7 @@
       continue;
     }
     this->sendInterest(pitEntry, outFace, interest);
-    pitEntry->getOutRecord(outFace)->insertStrategyInfo<OutRecordInfo>().first->isNonDiscoveryInterest = false;
+    pitEntry->getOutRecord(outFace, 0)->insertStrategyInfo<OutRecordInfo>().first->isNonDiscoveryInterest = false;
     NFD_LOG_DEBUG("send discovery Interest=" << interest << " from="
                   << inFace.getId() << " to=" << outFace.getId());
   }
@@ -164,7 +164,7 @@
       continue;
     }
     this->sendInterest(pitEntry, outFace, interest);
-    pitEntry->getOutRecord(outFace)->insertStrategyInfo<OutRecordInfo>().first->isNonDiscoveryInterest = true;
+    pitEntry->getOutRecord(outFace, 0)->insertStrategyInfo<OutRecordInfo>().first->isNonDiscoveryInterest = true;
     NFD_LOG_DEBUG("send non-discovery Interest=" << interest << " from="
                   << inFace.getId() << " to=" << outFace.getId());
   }
diff --git a/daemon/fw/strategy.cpp b/daemon/fw/strategy.cpp
index 3f364ea..378e554 100644
--- a/daemon/fw/strategy.cpp
+++ b/daemon/fw/strategy.cpp
@@ -199,7 +199,7 @@
 
   // delete the PIT entry's in-record based on outFace,
   // since Data is sent to outFace from which the Interest was received
-  pitEntry->deleteInRecord(outFace);
+  pitEntry->deleteInRecord(outFace, 0);
 
   m_forwarder.onOutgoingData(data, *const_pointer_cast<Face>(outFace.shared_from_this()));
 }
diff --git a/daemon/table/cleanup.cpp b/daemon/table/cleanup.cpp
index 5a45bf7..d45b363 100644
--- a/daemon/table/cleanup.cpp
+++ b/daemon/table/cleanup.cpp
@@ -40,7 +40,7 @@
     }
 
     for (const auto& pitEntry : nte.getPitEntries()) {
-      pit.deleteInOutRecords(pitEntry.get(), face);
+      pit.deleteInOutRecordsByFace(pitEntry.get(), face);
     }
 
     if (!nte.hasTableEntries()) {
diff --git a/daemon/table/pit-entry.cpp b/daemon/table/pit-entry.cpp
index ee4b726..2edbc9f 100644
--- a/daemon/table/pit-entry.cpp
+++ b/daemon/table/pit-entry.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2018,  Regents of the University of California,
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -50,21 +50,25 @@
 }
 
 InRecordCollection::iterator
-Entry::getInRecord(const Face& face)
+Entry::getInRecord(const Face& face, uint64_t endpointId)
 {
   return std::find_if(m_inRecords.begin(), m_inRecords.end(),
-    [&face] (const InRecord& inRecord) { return &inRecord.getFace() == &face; });
+    [&face, endpointId] (const InRecord& inRecord) {
+      return &inRecord.getFace() == &face && inRecord.getEndpointId() == endpointId;
+    });
 }
 
 InRecordCollection::iterator
-Entry::insertOrUpdateInRecord(Face& face, const Interest& interest)
+Entry::insertOrUpdateInRecord(Face& face, uint64_t endpointId, const Interest& interest)
 {
   BOOST_ASSERT(this->canMatch(interest));
 
   auto it = std::find_if(m_inRecords.begin(), m_inRecords.end(),
-    [&face] (const InRecord& inRecord) { return &inRecord.getFace() == &face; });
+    [&face, endpointId] (const InRecord& inRecord) {
+      return &inRecord.getFace() == &face && inRecord.getEndpointId() == endpointId;
+    });
   if (it == m_inRecords.end()) {
-    m_inRecords.emplace_front(face);
+    m_inRecords.emplace_front(face, endpointId);
     it = m_inRecords.begin();
   }
 
@@ -73,10 +77,12 @@
 }
 
 void
-Entry::deleteInRecord(const Face& face)
+Entry::deleteInRecord(const Face& face, uint64_t endpointId)
 {
   auto it = std::find_if(m_inRecords.begin(), m_inRecords.end(),
-    [&face] (const InRecord& inRecord) { return &inRecord.getFace() == &face; });
+    [&face, endpointId] (const InRecord& inRecord) {
+      return &inRecord.getFace() == &face && inRecord.getEndpointId() == endpointId;
+    });
   if (it != m_inRecords.end()) {
     m_inRecords.erase(it);
   }
@@ -89,21 +95,25 @@
 }
 
 OutRecordCollection::iterator
-Entry::getOutRecord(const Face& face)
+Entry::getOutRecord(const Face& face, uint64_t endpointId)
 {
   return std::find_if(m_outRecords.begin(), m_outRecords.end(),
-    [&face] (const OutRecord& outRecord) { return &outRecord.getFace() == &face; });
+    [&face, endpointId] (const OutRecord& outRecord) {
+      return &outRecord.getFace() == &face && outRecord.getEndpointId() == endpointId;
+    });
 }
 
 OutRecordCollection::iterator
-Entry::insertOrUpdateOutRecord(Face& face, const Interest& interest)
+Entry::insertOrUpdateOutRecord(Face& face, uint64_t endpointId, const Interest& interest)
 {
   BOOST_ASSERT(this->canMatch(interest));
 
   auto it = std::find_if(m_outRecords.begin(), m_outRecords.end(),
-    [&face] (const OutRecord& outRecord) { return &outRecord.getFace() == &face; });
+    [&face, endpointId] (const OutRecord& outRecord) {
+      return &outRecord.getFace() == &face && outRecord.getEndpointId() == endpointId;
+    });
   if (it == m_outRecords.end()) {
-    m_outRecords.emplace_front(face);
+    m_outRecords.emplace_front(face, endpointId);
     it = m_outRecords.begin();
   }
 
@@ -112,14 +122,27 @@
 }
 
 void
-Entry::deleteOutRecord(const Face& face)
+Entry::deleteOutRecord(const Face& face, uint64_t endpointId)
 {
   auto it = std::find_if(m_outRecords.begin(), m_outRecords.end(),
-    [&face] (const OutRecord& outRecord) { return &outRecord.getFace() == &face; });
+    [&face, endpointId] (const OutRecord& outRecord) {
+      return &outRecord.getFace() == &face && outRecord.getEndpointId() == endpointId;
+    });
   if (it != m_outRecords.end()) {
     m_outRecords.erase(it);
   }
 }
 
+void
+Entry::deleteInOutRecordsByFace(const Face& face)
+{
+  m_inRecords.remove_if([&face] (const InRecord& inRecord) {
+    return &inRecord.getFace() == &face;
+  });
+  m_outRecords.remove_if([&face] (const OutRecord& outRecord) {
+    return &outRecord.getFace() == &face;
+  });
+}
+
 } // namespace pit
 } // namespace nfd
diff --git a/daemon/table/pit-entry.hpp b/daemon/table/pit-entry.hpp
index 2e49824..b1dc9ee 100644
--- a/daemon/table/pit-entry.hpp
+++ b/daemon/table/pit-entry.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2018,  Regents of the University of California,
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -132,22 +132,22 @@
     return m_inRecords.end();
   }
 
-  /** \brief get the in-record for \p face
+  /** \brief get the in-record for \p face and \p endpointId
    *  \return an iterator to the in-record, or .in_end() if it does not exist
    */
   InRecordCollection::iterator
-  getInRecord(const Face& face);
+  getInRecord(const Face& face, uint64_t endpointId);
 
   /** \brief insert or update an in-record
    *  \return an iterator to the new or updated in-record
    */
   InRecordCollection::iterator
-  insertOrUpdateInRecord(Face& face, const Interest& interest);
+  insertOrUpdateInRecord(Face& face, uint64_t endpointId, const Interest& interest);
 
-  /** \brief delete the in-record for \p face if it exists
+  /** \brief delete the in-record for \p face and \p endpointId if it exists
    */
   void
-  deleteInRecord(const Face& face);
+  deleteInRecord(const Face& face, uint64_t endpointId);
 
   /** \brief delete all in-records
    */
@@ -199,22 +199,28 @@
     return m_outRecords.end();
   }
 
-  /** \brief get the out-record for \p face
+  /** \brief get the out-record for \p face and \p endpointId
    *  \return an iterator to the out-record, or .out_end() if it does not exist
    */
   OutRecordCollection::iterator
-  getOutRecord(const Face& face);
+  getOutRecord(const Face& face, uint64_t endpointId);
 
   /** \brief insert or update an out-record
    *  \return an iterator to the new or updated out-record
    */
   OutRecordCollection::iterator
-  insertOrUpdateOutRecord(Face& face, const Interest& interest);
+  insertOrUpdateOutRecord(Face& face, uint64_t endpointId, const Interest& interest);
 
-  /** \brief delete the out-record for \p face if it exists
+  /** \brief delete the out-record for \p face and \p endpointId if it exists
    */
   void
-  deleteOutRecord(const Face& face);
+  deleteOutRecord(const Face& face, uint64_t endpointId);
+
+public: // cleanup
+  /** \brief delete all in-records and out-records for \p face if it exists
+   */
+  void
+  deleteInOutRecordsByFace(const Face& face);
 
 public:
   /** \brief expiry timer
diff --git a/daemon/table/pit-face-record.cpp b/daemon/table/pit-face-record.cpp
index d594cb9..61fef7e 100644
--- a/daemon/table/pit-face-record.cpp
+++ b/daemon/table/pit-face-record.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) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -28,8 +28,9 @@
 namespace nfd {
 namespace pit {
 
-FaceRecord::FaceRecord(Face& face)
+FaceRecord::FaceRecord(Face& face, uint64_t endpointId)
   : m_face(face)
+  , m_endpointId(endpointId)
   , m_lastNonce(0)
   , m_lastRenewed(time::steady_clock::TimePoint::min())
   , m_expiry(time::steady_clock::TimePoint::min())
diff --git a/daemon/table/pit-face-record.hpp b/daemon/table/pit-face-record.hpp
index 90c3cdb..3e3f020 100644
--- a/daemon/table/pit-face-record.hpp
+++ b/daemon/table/pit-face-record.hpp
@@ -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) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -40,12 +40,14 @@
 class FaceRecord : public StrategyInfoHost
 {
 public:
-  explicit
-  FaceRecord(Face& face);
+  FaceRecord(Face& face, uint64_t endpointId);
 
   Face&
   getFace() const;
 
+  uint64_t
+  getEndpointId() const;
+
   uint32_t
   getLastNonce() const;
 
@@ -65,6 +67,7 @@
 
 private:
   Face& m_face;
+  uint64_t m_endpointId;
   uint32_t m_lastNonce;
   time::steady_clock::TimePoint m_lastRenewed;
   time::steady_clock::TimePoint m_expiry;
@@ -76,6 +79,12 @@
   return m_face;
 }
 
+inline uint64_t
+FaceRecord::getEndpointId() const
+{
+  return m_endpointId;
+}
+
 inline uint32_t
 FaceRecord::getLastNonce() const
 {
diff --git a/daemon/table/pit-in-record.cpp b/daemon/table/pit-in-record.cpp
index 8167190..7bb10b9 100644
--- a/daemon/table/pit-in-record.cpp
+++ b/daemon/table/pit-in-record.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) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -28,8 +28,8 @@
 namespace nfd {
 namespace pit {
 
-InRecord::InRecord(Face& face)
-  : FaceRecord(face)
+InRecord::InRecord(Face& face, uint64_t endpointId)
+  : FaceRecord(face, endpointId)
 {
 }
 
diff --git a/daemon/table/pit-in-record.hpp b/daemon/table/pit-in-record.hpp
index 45167c3..d758097 100644
--- a/daemon/table/pit-in-record.hpp
+++ b/daemon/table/pit-in-record.hpp
@@ -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) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -36,8 +36,7 @@
 class InRecord : public FaceRecord
 {
 public:
-  explicit
-  InRecord(Face& face);
+  InRecord(Face& face, uint64_t endpointId);
 
   void
   update(const Interest& interest);
diff --git a/daemon/table/pit-out-record.cpp b/daemon/table/pit-out-record.cpp
index 8b4f609..75d7e7f 100644
--- a/daemon/table/pit-out-record.cpp
+++ b/daemon/table/pit-out-record.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) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -28,8 +28,8 @@
 namespace nfd {
 namespace pit {
 
-OutRecord::OutRecord(Face& face)
-  : FaceRecord(face)
+OutRecord::OutRecord(Face& face, uint64_t endpointId)
+  : FaceRecord(face, endpointId)
 {
 }
 
diff --git a/daemon/table/pit-out-record.hpp b/daemon/table/pit-out-record.hpp
index 4400fd4..c0537fd 100644
--- a/daemon/table/pit-out-record.hpp
+++ b/daemon/table/pit-out-record.hpp
@@ -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) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -36,8 +36,7 @@
 class OutRecord : public FaceRecord
 {
 public:
-  explicit
-  OutRecord(Face& face);
+  OutRecord(Face& face, uint64_t endpointId);
 
   /** \return last NACK returned by \p getFace()
    *
@@ -79,4 +78,4 @@
 } // namespace pit
 } // namespace nfd
 
-#endif // NFD_DAEMON_TABLE_PIT_IN_RECORD_HPP
+#endif // NFD_DAEMON_TABLE_PIT_OUT_RECORD_HPP
diff --git a/daemon/table/pit.cpp b/daemon/table/pit.cpp
index 7a708da..5e26fc0 100644
--- a/daemon/table/pit.cpp
+++ b/daemon/table/pit.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2018,  Regents of the University of California,
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -113,12 +113,11 @@
 }
 
 void
-Pit::deleteInOutRecords(Entry* entry, const Face& face)
+Pit::deleteInOutRecordsByFace(Entry* entry, const Face& face)
 {
   BOOST_ASSERT(entry != nullptr);
 
-  entry->deleteInRecord(face);
-  entry->deleteOutRecord(face);
+  entry->deleteInOutRecordsByFace(face);
 
   /// \todo decide whether to delete PIT entry if there's no more in/out-record left
 }
diff --git a/daemon/table/pit.hpp b/daemon/table/pit.hpp
index 6e8af8a..eb2438b 100644
--- a/daemon/table/pit.hpp
+++ b/daemon/table/pit.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2018,  Regents of the University of California,
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -93,10 +93,10 @@
     this->erase(entry, true);
   }
 
-  /** \brief deletes in-record and out-record for face
+  /** \brief deletes all in-records and out-records for \p face
    */
   void
-  deleteInOutRecords(Entry* entry, const Face& face);
+  deleteInOutRecordsByFace(Entry* entry, const Face& face);
 
 public: // enumeration
   typedef Iterator const_iterator;
diff --git a/tests/daemon/fw/algorithm.t.cpp b/tests/daemon/fw/algorithm.t.cpp
index 8a188e6..1e482c5 100644
--- a/tests/daemon/fw/algorithm.t.cpp
+++ b/tests/daemon/fw/algorithm.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2017,  Regents of the University of California,
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -97,15 +97,15 @@
   auto face1 = make_shared<DummyFace>();
   auto face2 = make_shared<DummyFace>();
 
-  entry.insertOrUpdateInRecord(*face1, *interest);
+  entry.insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK_EQUAL(canForwardToLegacy(entry, *face1), false);
   BOOST_CHECK_EQUAL(canForwardToLegacy(entry, *face2), true);
 
-  entry.insertOrUpdateInRecord(*face2, *interest);
+  entry.insertOrUpdateInRecord(*face2, 0, *interest);
   BOOST_CHECK_EQUAL(canForwardToLegacy(entry, *face1), true);
   BOOST_CHECK_EQUAL(canForwardToLegacy(entry, *face2), true);
 
-  entry.insertOrUpdateOutRecord(*face1, *interest);
+  entry.insertOrUpdateOutRecord(*face1, 0, *interest);
   BOOST_CHECK_EQUAL(canForwardToLegacy(entry, *face1), false);
   BOOST_CHECK_EQUAL(canForwardToLegacy(entry, *face2), true);
 }
@@ -125,22 +125,22 @@
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry0, 19004, *face2), DUPLICATE_NONCE_NONE);
 
   pit::Entry entry1(*interest);
-  entry1.insertOrUpdateInRecord(*face1, *interest);
+  entry1.insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry1, 25559, *face1), DUPLICATE_NONCE_IN_SAME);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry1, 25559, *face2), DUPLICATE_NONCE_IN_OTHER);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry1, 19004, *face1), DUPLICATE_NONCE_NONE);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry1, 19004, *face2), DUPLICATE_NONCE_NONE);
 
   pit::Entry entry2(*interest);
-  entry2.insertOrUpdateOutRecord(*face1, *interest);
+  entry2.insertOrUpdateOutRecord(*face1, 0, *interest);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry2, 25559, *face1), DUPLICATE_NONCE_OUT_SAME);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry2, 25559, *face2), DUPLICATE_NONCE_OUT_OTHER);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry2, 19004, *face1), DUPLICATE_NONCE_NONE);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry2, 19004, *face2), DUPLICATE_NONCE_NONE);
 
   pit::Entry entry3(*interest);
-  entry3.insertOrUpdateInRecord(*face1, *interest);
-  entry3.insertOrUpdateOutRecord(*face1, *interest);
+  entry3.insertOrUpdateInRecord(*face1, 0, *interest);
+  entry3.insertOrUpdateOutRecord(*face1, 0, *interest);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry3, 25559, *face1),
                     DUPLICATE_NONCE_IN_SAME | DUPLICATE_NONCE_OUT_SAME);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry3, 25559, *face2),
@@ -149,8 +149,8 @@
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry3, 19004, *face2), DUPLICATE_NONCE_NONE);
 
   pit::Entry entry4(*interest);
-  entry4.insertOrUpdateInRecord(*face1, *interest);
-  entry4.insertOrUpdateInRecord(*face2, *interest);
+  entry4.insertOrUpdateInRecord(*face1, 0, *interest);
+  entry4.insertOrUpdateInRecord(*face2, 0, *interest);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry4, 25559, *face1),
                     DUPLICATE_NONCE_IN_SAME | DUPLICATE_NONCE_IN_OTHER);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry4, 25559, *face2),
@@ -159,8 +159,8 @@
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry4, 19004, *face2), DUPLICATE_NONCE_NONE);
 
   pit::Entry entry5(*interest);
-  entry5.insertOrUpdateOutRecord(*face1, *interest);
-  entry5.insertOrUpdateOutRecord(*face2, *interest);
+  entry5.insertOrUpdateOutRecord(*face1, 0, *interest);
+  entry5.insertOrUpdateOutRecord(*face2, 0, *interest);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry5, 25559, *face1),
                     DUPLICATE_NONCE_OUT_SAME | DUPLICATE_NONCE_OUT_OTHER);
   BOOST_CHECK_EQUAL(findDuplicateNonce(entry5, 25559, *face2),
@@ -182,15 +182,15 @@
   BOOST_CHECK_EQUAL(hasPendingOutRecords(entry), false);
 
   // Interest-Data
-  entry.insertOrUpdateOutRecord(*face1, *interest);
+  entry.insertOrUpdateOutRecord(*face1, 0, *interest);
   BOOST_CHECK_EQUAL(hasPendingOutRecords(entry), true);
-  entry.deleteOutRecord(*face1);
+  entry.deleteOutRecord(*face1, 0);
   BOOST_CHECK_EQUAL(hasPendingOutRecords(entry), false);
 
   // Interest-Nack
-  entry.insertOrUpdateOutRecord(*face2, *interest);
+  entry.insertOrUpdateOutRecord(*face2, 0, *interest);
   BOOST_CHECK_EQUAL(hasPendingOutRecords(entry), true);
-  pit::OutRecordCollection::iterator outR = entry.getOutRecord(*face2);
+  pit::OutRecordCollection::iterator outR = entry.getOutRecord(*face2, 0);
   BOOST_REQUIRE(outR != entry.out_end());
   lp::Nack nack = makeNack("ndn:/totzXG0d", 29321, lp::NackReason::DUPLICATE);
   bool isNackAccepted = outR->setIncomingNack(nack); // Nack arrival
@@ -198,7 +198,7 @@
   BOOST_CHECK_EQUAL(hasPendingOutRecords(entry), false);
 
   // Interest-timeout
-  entry.insertOrUpdateOutRecord(*face3, *interest);
+  entry.insertOrUpdateOutRecord(*face3, 0, *interest);
   BOOST_CHECK_EQUAL(hasPendingOutRecords(entry), true);
   this->advanceClocks(ndn::DEFAULT_INTEREST_LIFETIME, 2);
   BOOST_CHECK_EQUAL(hasPendingOutRecords(entry), false);
@@ -214,12 +214,12 @@
 
   time::steady_clock::TimePoint before = time::steady_clock::now();
 
-  entry.insertOrUpdateOutRecord(*face1, *interest);
+  entry.insertOrUpdateOutRecord(*face1, 0, *interest);
   this->advanceClocks(time::milliseconds(1000));
 
   BOOST_CHECK_EQUAL(getLastOutgoing(entry), before);
 
-  entry.insertOrUpdateOutRecord(*face2, *interest);
+  entry.insertOrUpdateOutRecord(*face2, 0, *interest);
 
   BOOST_CHECK_EQUAL(getLastOutgoing(entry), time::steady_clock::now());
 }
diff --git a/tests/daemon/fw/asf-measurements.t.cpp b/tests/daemon/fw/asf-measurements.t.cpp
index ffee3e6..cc4c9e4 100644
--- a/tests/daemon/fw/asf-measurements.t.cpp
+++ b/tests/daemon/fw/asf-measurements.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) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -100,7 +100,7 @@
   shared_ptr<pit::Entry> pitEntry = make_shared<pit::Entry>(*interest);
   std::shared_ptr<DummyFace> face = make_shared<DummyFace>();
 
-  pitEntry->insertOrUpdateOutRecord(*face, *interest);
+  pitEntry->insertOrUpdateOutRecord(*face, 0, *interest);
 
   RttEstimator::Duration rtt(50);
   this->advanceClocks(time::milliseconds(5), rtt);
diff --git a/tests/daemon/fw/asf-strategy.t.cpp b/tests/daemon/fw/asf-strategy.t.cpp
index 5759e68..7e3de91 100644
--- a/tests/daemon/fw/asf-strategy.t.cpp
+++ b/tests/daemon/fw/asf-strategy.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2018,  Regents of the University of California,
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -273,7 +273,7 @@
       // Get pitEntry of node A
       shared_ptr<pit::Entry> pitEntry = topo.getForwarder(nodeA).getPit().find(*interest);
       //get outRecord associated with face towards B
-      pit::OutRecordCollection::const_iterator outRecord = pitEntry->getOutRecord(linkAB->getFace(nodeA));
+      pit::OutRecordCollection::const_iterator outRecord = pitEntry->getOutRecord(linkAB->getFace(nodeA), 0);
 
       BOOST_CHECK(outRecord != pitEntry->out_end());
 
@@ -294,13 +294,13 @@
       pitEntry = topo.getForwarder(nodeB).getPit().find(*interest);
 
       // Get outRecord associated with face towards D.
-      outRecord = pitEntry->getOutRecord(linkBD->getFace(nodeB));
+      outRecord = pitEntry->getOutRecord(linkBD->getFace(nodeB), 0);
 
       BOOST_CHECK(outRecord != pitEntry->out_end());
 
       // RTT between B and D
       this->advanceClocks(time::milliseconds(5), time::milliseconds(160));
-      outRecord = pitEntry->getOutRecord(linkBD->getFace(nodeB));
+      outRecord = pitEntry->getOutRecord(linkBD->getFace(nodeB), 0);
 
       BOOST_CHECK_EQUAL(linkBD->getFace(nodeB).getCounters().nInData, i);
 
diff --git a/tests/daemon/fw/best-route-strategy2.t.cpp b/tests/daemon/fw/best-route-strategy2.t.cpp
index c0d9ba8..933a431 100644
--- a/tests/daemon/fw/best-route-strategy2.t.cpp
+++ b/tests/daemon/fw/best-route-strategy2.t.cpp
@@ -90,7 +90,7 @@
 
   // first Interest goes to nexthop with lowest FIB cost,
   // however face1 is downstream so it cannot be used
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   strategy.afterReceiveInterest(*face1, *interest, pitEntry);
   BOOST_REQUIRE_EQUAL(strategy.sendInterestHistory.size(), 1);
   BOOST_CHECK_EQUAL(strategy.sendInterestHistory.back().outFaceId, face2->getId());
@@ -102,7 +102,7 @@
   time::steady_clock::TimePoint timeSentLast = time::steady_clock::now();
   std::function<void()> periodicalRetxFrom4; // let periodicalRetxFrom4 lambda capture itself
   periodicalRetxFrom4 = [&] {
-    pitEntry->insertOrUpdateInRecord(*face4, *interest);
+    pitEntry->insertOrUpdateInRecord(*face4, 0, *interest);
     strategy.afterReceiveInterest(*face4, *interest, pitEntry);
 
     size_t nSent = strategy.sendInterestHistory.size();
@@ -134,7 +134,7 @@
   strategy.sendInterestHistory.clear();
   for (int i = 0; i < 3; ++i) {
     this->advanceClocks(TICK, BestRouteStrategy2::RETX_SUPPRESSION_MAX * 2);
-    pitEntry->insertOrUpdateInRecord(*face5, *interest);
+    pitEntry->insertOrUpdateInRecord(*face5, 0, *interest);
     strategy.afterReceiveInterest(*face5, *interest, pitEntry);
   }
   BOOST_REQUIRE_EQUAL(strategy.sendInterestHistory.size(), 3);
diff --git a/tests/daemon/fw/forwarder.t.cpp b/tests/daemon/fw/forwarder.t.cpp
index 85e77d0..b61c927 100644
--- a/tests/daemon/fw/forwarder.t.cpp
+++ b/tests/daemon/fw/forwarder.t.cpp
@@ -137,13 +137,13 @@
   auto interestA1 = makeInterest("/A");
   interestA1->setNonce(8378);
   shared_ptr<pit::Entry> pitA = pit.insert(*interestA1).first;
-  pitA->insertOrUpdateInRecord(*face1, *interestA1);
+  pitA->insertOrUpdateInRecord(*face1, 0, *interestA1);
 
   auto interestA2 = makeInterest("/A");
   interestA2->setNonce(1698);
   forwarder.onOutgoingInterest(pitA, *face2, *interestA2);
 
-  pit::OutRecordCollection::iterator outA2 = pitA->getOutRecord(*face2);
+  pit::OutRecordCollection::iterator outA2 = pitA->getOutRecord(*face2, 0);
   BOOST_REQUIRE(outA2 != pitA->out_end());
   BOOST_CHECK_EQUAL(outA2->getLastNonce(), 1698);
 
@@ -315,15 +315,15 @@
   Pit& pit = forwarder.getPit();
   shared_ptr<Interest> interest0 = makeInterest("ndn:/");
   shared_ptr<pit::Entry> pit0 = pit.insert(*interest0).first;
-  pit0->insertOrUpdateInRecord(*face1, *interest0);
+  pit0->insertOrUpdateInRecord(*face1, 0, *interest0);
   shared_ptr<Interest> interestA = makeInterest("ndn:/A");
   shared_ptr<pit::Entry> pitA = pit.insert(*interestA).first;
-  pitA->insertOrUpdateInRecord(*face1, *interestA);
-  pitA->insertOrUpdateInRecord(*face2, *interestA);
+  pitA->insertOrUpdateInRecord(*face1, 0, *interestA);
+  pitA->insertOrUpdateInRecord(*face2, 0, *interestA);
   shared_ptr<Interest> interestC = makeInterest("ndn:/A/B/C");
   shared_ptr<pit::Entry> pitC = pit.insert(*interestC).first;
-  pitC->insertOrUpdateInRecord(*face3, *interestC);
-  pitC->insertOrUpdateInRecord(*face4, *interestC);
+  pitC->insertOrUpdateInRecord(*face3, 0, *interestC);
+  pitC->insertOrUpdateInRecord(*face4, 0, *interestC);
 
   shared_ptr<Data> dataD = makeData("ndn:/A/B/C/D");
   forwarder.onIncomingData(*face3, *dataD);
@@ -356,10 +356,10 @@
   // dispatch to the correct strategy
   shared_ptr<Interest> interest1 = makeInterest("/A/AYJqayrzF", 562);
   shared_ptr<pit::Entry> pit1 = pit.insert(*interest1).first;
-  pit1->insertOrUpdateOutRecord(*face1, *interest1);
+  pit1->insertOrUpdateOutRecord(*face1, 0, *interest1);
   shared_ptr<Interest> interest2 = makeInterest("/B/EVyP73ru", 221);
   shared_ptr<pit::Entry> pit2 = pit.insert(*interest2).first;
-  pit2->insertOrUpdateOutRecord(*face1, *interest2);
+  pit2->insertOrUpdateOutRecord(*face1, 0, *interest2);
 
   lp::Nack nack1 = makeNack("/A/AYJqayrzF", 562, lp::NackReason::CONGESTION);
   strategyA.afterReceiveNack_count = 0;
@@ -376,7 +376,7 @@
   BOOST_CHECK_EQUAL(strategyB.afterReceiveNack_count, 1);
 
   // record Nack on PIT out-record
-  pit::OutRecordCollection::iterator outRecord1 = pit1->getOutRecord(*face1);
+  pit::OutRecordCollection::iterator outRecord1 = pit1->getOutRecord(*face1, 0);
   BOOST_REQUIRE(outRecord1 != pit1->out_end());
   BOOST_REQUIRE(outRecord1->getIncomingNack() != nullptr);
   BOOST_CHECK_EQUAL(outRecord1->getIncomingNack()->getReason(), lp::NackReason::CONGESTION);
@@ -392,7 +392,7 @@
   // drop if no out-record
   shared_ptr<Interest> interest4 = makeInterest("/Etab4KpY", 157);
   shared_ptr<pit::Entry> pit4 = pit.insert(*interest4).first;
-  pit4->insertOrUpdateOutRecord(*face1, *interest4);
+  pit4->insertOrUpdateOutRecord(*face1, 0, *interest4);
 
   lp::Nack nack4a = makeNack("/Etab4KpY", 157, lp::NackReason::CONGESTION);
   strategyA.afterReceiveNack_count = 0;
@@ -410,7 +410,7 @@
   BOOST_CHECK_EQUAL(strategyB.afterReceiveNack_count, 0);
 
   // drop if inFace is multi-access
-  pit4->insertOrUpdateOutRecord(*face3, *interest4);
+  pit4->insertOrUpdateOutRecord(*face3, 0, *interest4);
   strategyA.afterReceiveNack_count = 0;
   strategyB.afterReceiveNack_count = 0;
   forwarder.onIncomingNack(*face3, nack4a);
@@ -439,7 +439,7 @@
   // don't send Nack if there's no in-record
   shared_ptr<Interest> interest1 = makeInterest("/fM5IVEtC", 719);
   shared_ptr<pit::Entry> pit1 = pit.insert(*interest1).first;
-  pit1->insertOrUpdateInRecord(*face1, *interest1);
+  pit1->insertOrUpdateInRecord(*face1, 0, *interest1);
 
   face2->sentNacks.clear();
   forwarder.onOutgoingNack(pit1, *face2, nackHeader);
@@ -448,9 +448,9 @@
   // send Nack with correct Nonce
   shared_ptr<Interest> interest2a = makeInterest("/Vi8tRm9MG3", 152);
   shared_ptr<pit::Entry> pit2 = pit.insert(*interest2a).first;
-  pit2->insertOrUpdateInRecord(*face1, *interest2a);
+  pit2->insertOrUpdateInRecord(*face1, 0, *interest2a);
   shared_ptr<Interest> interest2b = makeInterest("/Vi8tRm9MG3", 808);
-  pit2->insertOrUpdateInRecord(*face2, *interest2b);
+  pit2->insertOrUpdateInRecord(*face2, 0, *interest2b);
 
   face1->sentNacks.clear();
   forwarder.onOutgoingNack(pit2, *face1, nackHeader);
@@ -459,7 +459,7 @@
   BOOST_CHECK_EQUAL(face1->sentNacks.back().getInterest().getNonce(), 152);
 
   // erase in-record
-  pit::InRecordCollection::iterator inRecord2a = pit2->getInRecord(*face1);
+  pit::InRecordCollection::iterator inRecord2a = pit2->getInRecord(*face1, 0);
   BOOST_CHECK(inRecord2a == pit2->in_end());
 
   // send Nack with correct Nonce
@@ -470,12 +470,12 @@
   BOOST_CHECK_EQUAL(face2->sentNacks.back().getInterest().getNonce(), 808);
 
   // erase in-record
-  pit::InRecordCollection::iterator inRecord2b = pit2->getInRecord(*face1);
+  pit::InRecordCollection::iterator inRecord2b = pit2->getInRecord(*face1, 0);
   BOOST_CHECK(inRecord2b == pit2->in_end());
 
   // don't send Nack to multi-access face
   shared_ptr<Interest> interest2c = makeInterest("/Vi8tRm9MG3", 228);
-  pit2->insertOrUpdateInRecord(*face3, *interest2c);
+  pit2->insertOrUpdateInRecord(*face3, 0, *interest2c);
 
   face3->sentNacks.clear();
   forwarder.onOutgoingNack(pit1, *face3, nackHeader);
diff --git a/tests/daemon/fw/multicast-strategy.t.cpp b/tests/daemon/fw/multicast-strategy.t.cpp
index 04de9b2..09eeac7 100644
--- a/tests/daemon/fw/multicast-strategy.t.cpp
+++ b/tests/daemon/fw/multicast-strategy.t.cpp
@@ -76,7 +76,7 @@
 
   shared_ptr<Interest> interest = makeInterest("ndn:/H0D6i5fc");
   shared_ptr<pit::Entry> pitEntry = pit.insert(*interest).first;
-  pitEntry->insertOrUpdateInRecord(*face3, *interest);
+  pitEntry->insertOrUpdateInRecord(*face3, 0, *interest);
 
   strategy.afterReceiveInterest(*face3, *interest, pitEntry);
   BOOST_CHECK_EQUAL(strategy.rejectPendingInterestHistory.size(), 0);
@@ -101,7 +101,7 @@
   time::steady_clock::TimePoint timeSentLast = time::steady_clock::now();
   std::function<void()> periodicalRetxFrom4; // let periodicalRetxFrom4 lambda capture itself
   periodicalRetxFrom4 = [&] {
-    pitEntry->insertOrUpdateInRecord(*face3, *interest);
+    pitEntry->insertOrUpdateInRecord(*face3, 0, *interest);
     strategy.afterReceiveInterest(*face3, *interest, pitEntry);
 
     size_t nSent = strategy.sendInterestHistory.size();
@@ -128,7 +128,7 @@
 
   shared_ptr<Interest> interest = makeInterest("ndn:/H0D6i5fc");
   shared_ptr<pit::Entry> pitEntry = pit.insert(*interest).first;
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
 
   strategy.afterReceiveInterest(*face1, *interest, pitEntry);
   BOOST_CHECK_EQUAL(strategy.rejectPendingInterestHistory.size(), 1);
diff --git a/tests/daemon/fw/ncc-strategy.t.cpp b/tests/daemon/fw/ncc-strategy.t.cpp
index 38a2401..fed914c 100644
--- a/tests/daemon/fw/ncc-strategy.t.cpp
+++ b/tests/daemon/fw/ncc-strategy.t.cpp
@@ -74,7 +74,7 @@
   interest1.setInterestLifetime(time::milliseconds(8000));
   shared_ptr<pit::Entry> pitEntry1 = pit.insert(interest1).first;
 
-  pitEntry1->insertOrUpdateInRecord(*face3, interest1);
+  pitEntry1->insertOrUpdateInRecord(*face3, 0, interest1);
   strategy.afterReceiveInterest(*face3, interest1, pitEntry1);
 
   // forwards to face1 because routing says it's best
@@ -99,7 +99,7 @@
   interest2.setInterestLifetime(time::milliseconds(8000));
   shared_ptr<pit::Entry> pitEntry2 = pit.insert(interest2).first;
 
-  pitEntry2->insertOrUpdateInRecord(*face3, interest2);
+  pitEntry2->insertOrUpdateInRecord(*face3, 0, interest2);
   strategy.afterReceiveInterest(*face3, interest2, pitEntry2);
 
   // forwards to face2 because it responds previously
@@ -131,7 +131,7 @@
   interest1->setInterestLifetime(time::milliseconds(8000));
   shared_ptr<pit::Entry> pitEntry1 = pit.insert(*interest1).first;
 
-  pitEntry1->insertOrUpdateInRecord(*face3, *interest1);
+  pitEntry1->insertOrUpdateInRecord(*face3, 0, *interest1);
   strategy.afterReceiveInterest(*face3, *interest1, pitEntry1);
 
   this->advanceClocks(time::milliseconds(1));
@@ -149,7 +149,7 @@
   interest2->setInterestLifetime(time::milliseconds(8000));
   shared_ptr<pit::Entry> pitEntry2 = pit.insert(*interest2).first;
 
-  pitEntry2->insertOrUpdateInRecord(*face3, *interest2);
+  pitEntry2->insertOrUpdateInRecord(*face3, 0, *interest2);
   strategy.afterReceiveInterest(*face3, *interest2, pitEntry2);
 
   // FIB entry is changed before doPropagate executes
@@ -183,7 +183,7 @@
   interest1->setInterestLifetime(time::milliseconds(2000));
   shared_ptr<pit::Entry> pitEntry1 = pit.insert(*interest1).first;
 
-  pitEntry1->insertOrUpdateInRecord(*face3, *interest1);
+  pitEntry1->insertOrUpdateInRecord(*face3, 0, *interest1);
   strategy.afterReceiveInterest(*face3, *interest1, pitEntry1);
   limitedIo.run(2 - strategy.sendInterestHistory.size(),
                 time::milliseconds(2000), time::milliseconds(10));
@@ -205,7 +205,7 @@
   interest2->setInterestLifetime(time::milliseconds(2000));
   shared_ptr<pit::Entry> pitEntry2 = pit.insert(*interest2).first;
 
-  pitEntry2->insertOrUpdateInRecord(*face3, *interest2);
+  pitEntry2->insertOrUpdateInRecord(*face3, 0, *interest2);
   strategy.afterReceiveInterest(*face3, *interest2, pitEntry2);
   limitedIo.run(3 - strategy.sendInterestHistory.size(),
                 time::milliseconds(2000), time::milliseconds(10));
@@ -237,7 +237,7 @@
   interest1->setInterestLifetime(time::milliseconds(2000));
   shared_ptr<pit::Entry> pitEntry1 = pit.insert(*interest1).first;
 
-  pitEntry1->insertOrUpdateInRecord(*face1, *interest1);
+  pitEntry1->insertOrUpdateInRecord(*face1, 0, *interest1);
   strategy.afterReceiveInterest(*face1, *interest1, pitEntry1);
   limitedIo.run(1 - strategy.sendInterestHistory.size(),
                 time::milliseconds(2000), time::milliseconds(10));
@@ -248,12 +248,12 @@
   shared_ptr<Data> data1 = makeData("ndn:/M4mBXCsd");
   data1->setFreshnessPeriod(time::milliseconds(5));
   strategy.beforeSatisfyInterest(pitEntry1, *face2, *data1);
-  pitEntry1->deleteOutRecord(*face2);
+  pitEntry1->deleteOutRecord(*face2, 0);
   pitEntry1->clearInRecords();
   this->advanceClocks(time::milliseconds(10));
 
   // similar Interest: strategy should still forward it
-  pitEntry1->insertOrUpdateInRecord(*face1, *interest1);
+  pitEntry1->insertOrUpdateInRecord(*face1, 0, *interest1);
   strategy.afterReceiveInterest(*face1, *interest1, pitEntry1);
   limitedIo.run(2 - strategy.sendInterestHistory.size(),
                 time::milliseconds(2000), time::milliseconds(10));
@@ -281,7 +281,7 @@
   // Interest comes from face1, which is sole downstream
   shared_ptr<Interest> interest1 = makeInterest("ndn:/tFy5HzUzD4");
   shared_ptr<pit::Entry> pitEntry1 = pit.insert(*interest1).first;
-  pitEntry1->insertOrUpdateInRecord(*face1, *interest1);
+  pitEntry1->insertOrUpdateInRecord(*face1, 0, *interest1);
 
   strategy.afterReceiveInterest(*face1, *interest1, pitEntry1);
 
diff --git a/tests/daemon/fw/pit-expiry.t.cpp b/tests/daemon/fw/pit-expiry.t.cpp
index 07c79c9..b8c0418 100644
--- a/tests/daemon/fw/pit-expiry.t.cpp
+++ b/tests/daemon/fw/pit-expiry.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2018,  Regents of the University of California,
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -227,8 +227,8 @@
 
   face1->receiveInterest(*interest);
   auto entry = pit.find(*interest);
-  entry->insertOrUpdateOutRecord(*face2, *interest);
-  entry->insertOrUpdateOutRecord(*face3, *interest);
+  entry->insertOrUpdateOutRecord(*face2, 0, *interest);
+  entry->insertOrUpdateOutRecord(*face3, 0, *interest);
 
   this->advanceClocks(10_ms);
   face2->receiveNack(nack);
@@ -394,8 +394,8 @@
 
   face1->receiveInterest(*interest);
   auto entry = pit.find(*interest);
-  entry->insertOrUpdateOutRecord(*face2, *interest);
-  entry->insertOrUpdateOutRecord(*face3, *interest);
+  entry->insertOrUpdateOutRecord(*face2, 0, *interest);
+  entry->insertOrUpdateOutRecord(*face3, 0, *interest);
 
   //pitEntry is not erased after receiving the first Nack
   this->advanceClocks(10_ms);
diff --git a/tests/daemon/fw/retx-suppression.t.cpp b/tests/daemon/fw/retx-suppression.t.cpp
index dce6da9..c96ac67 100644
--- a/tests/daemon/fw/retx-suppression.t.cpp
+++ b/tests/daemon/fw/retx-suppression.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2017,  Regents of the University of California,
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -60,31 +60,31 @@
       time::duration_cast<time::nanoseconds>(MIN_RETX_INTERVAL * 0.1);
 
   // @ time 0
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::NEW);
-  pitEntry->insertOrUpdateOutRecord(*face3, *interest);
+  pitEntry->insertOrUpdateOutRecord(*face3, 0, *interest);
 
   this->advanceClocks(RETRANSMISSION_10P, 5); // @ time 0.5 interval
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::SUPPRESS);
-  pitEntry->insertOrUpdateInRecord(*face2, *interest);
+  pitEntry->insertOrUpdateInRecord(*face2, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::SUPPRESS);
 
   this->advanceClocks(RETRANSMISSION_10P, 6); // @ time 1.1 interval
-  pitEntry->insertOrUpdateInRecord(*face2, *interest);
+  pitEntry->insertOrUpdateInRecord(*face2, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::FORWARD);
   // but strategy decides not to forward
 
   this->advanceClocks(RETRANSMISSION_10P, 1); // @ time 1.2 interval
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::FORWARD);
   // retransmission suppress shall still give clearance for forwarding
-  pitEntry->insertOrUpdateOutRecord(*face3, *interest); // and strategy forwards
+  pitEntry->insertOrUpdateOutRecord(*face3, 0, *interest); // and strategy forwards
 
   this->advanceClocks(RETRANSMISSION_10P, 2); // @ time 1.4 interval
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::SUPPRESS);
-  pitEntry->insertOrUpdateInRecord(*face2, *interest);
+  pitEntry->insertOrUpdateInRecord(*face2, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::SUPPRESS);
 }
 
@@ -103,13 +103,13 @@
   shared_ptr<pit::Entry> pitEntry = pit.insert(*interest).first;
 
   // @ 0ms
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::NEW);
-  pitEntry->insertOrUpdateOutRecord(*face2, *interest);
+  pitEntry->insertOrUpdateOutRecord(*face2, 0, *interest);
   // suppression interval is 10ms, until 10ms
 
   this->advanceClocks(time::milliseconds(5)); // @ 5ms
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::SUPPRESS);
   // suppression interval is 10ms, until 10ms
 
@@ -117,42 +117,42 @@
   // note: what happens at *exactly* 10ms does not matter so it's untested,
   // because in reality network timing won't be exact:
   // incoming Interest is processed either before or after 10ms point
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::FORWARD);
-  pitEntry->insertOrUpdateOutRecord(*face2, *interest);
+  pitEntry->insertOrUpdateOutRecord(*face2, 0, *interest);
   // suppression interval is 30ms, until 41ms
 
   this->advanceClocks(time::milliseconds(25)); // @ 36ms
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::SUPPRESS);
   // suppression interval is 30ms, until 41ms
 
   this->advanceClocks(time::milliseconds(6)); // @ 42ms
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::FORWARD);
   // strategy decides not to forward, but suppression interval is increased nevertheless
   // suppression interval is 90ms, until 101ms
 
   this->advanceClocks(time::milliseconds(58)); // @ 100ms
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::SUPPRESS);
   // suppression interval is 90ms, until 101ms
 
   this->advanceClocks(time::milliseconds(3)); // @ 103ms
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::FORWARD);
-  pitEntry->insertOrUpdateOutRecord(*face2, *interest);
+  pitEntry->insertOrUpdateOutRecord(*face2, 0, *interest);
   // suppression interval is 100ms, until 203ms
 
   this->advanceClocks(time::milliseconds(99)); // @ 202ms
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::SUPPRESS);
   // suppression interval is 100ms, until 203ms
 
   this->advanceClocks(time::milliseconds(2)); // @ 204ms
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerPitEntry(*pitEntry) == RetxSuppressionResult::FORWARD);
-  pitEntry->insertOrUpdateOutRecord(*face2, *interest);
+  pitEntry->insertOrUpdateOutRecord(*face2, 0, *interest);
   // suppression interval is 100ms, until 304ms
 }
 
@@ -171,28 +171,28 @@
   shared_ptr<pit::Entry> pitEntry = pit.insert(*interest).first;
 
   // @ 0ms
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerUpstream(*pitEntry, *face2) == RetxSuppressionResult::NEW);
 
   // Simluate forwarding an interest to face2
-  pitEntry->insertOrUpdateOutRecord(*face2, *interest);
+  pitEntry->insertOrUpdateOutRecord(*face2, 0, *interest);
   this->advanceClocks(time::milliseconds(5)); // @ 5ms
 
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerUpstream(*pitEntry, *face2) == RetxSuppressionResult::SUPPRESS);
 
   // Return NEW since no outRecord for face1
-  pitEntry->insertOrUpdateInRecord(*face2, *interest);
+  pitEntry->insertOrUpdateInRecord(*face2, 0, *interest);
   BOOST_CHECK(rs.decidePerUpstream(*pitEntry, *face1) == RetxSuppressionResult::NEW);
 
   this->advanceClocks(time::milliseconds(6)); // @ 11ms
 
-  pitEntry->insertOrUpdateInRecord(*face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
   BOOST_CHECK(rs.decidePerUpstream(*pitEntry, *face2) == RetxSuppressionResult::FORWARD);
   // Assume interest is sent and increment interval
-  rs.incrementIntervalForOutRecord(*pitEntry->getOutRecord(*face2));
+  rs.incrementIntervalForOutRecord(*pitEntry->getOutRecord(*face2, 0));
 
-  pitEntry->insertOrUpdateInRecord(*face2, *interest);
+  pitEntry->insertOrUpdateInRecord(*face2, 0, *interest);
   BOOST_CHECK(rs.decidePerUpstream(*pitEntry, *face2) == RetxSuppressionResult::SUPPRESS);
 }
 
diff --git a/tests/daemon/fw/strategy-nack-return.t.cpp b/tests/daemon/fw/strategy-nack-return.t.cpp
index aea8d88..ed2e9e1 100644
--- a/tests/daemon/fw/strategy-nack-return.t.cpp
+++ b/tests/daemon/fw/strategy-nack-return.t.cpp
@@ -103,12 +103,12 @@
   shared_ptr<Interest> interest1 = makeInterest("/McQYjMbm", 992);
   shared_ptr<Interest> interest2 = makeInterest("/McQYjMbm", 114);
   shared_ptr<pit::Entry> pitEntry = this->pit.insert(*interest1).first;
-  pitEntry->insertOrUpdateInRecord(*this->face1, *interest1);
-  pitEntry->insertOrUpdateInRecord(*this->face2, *interest2);
-  pitEntry->insertOrUpdateOutRecord(*this->face3, *interest1);
+  pitEntry->insertOrUpdateInRecord(*this->face1, 0, *interest1);
+  pitEntry->insertOrUpdateInRecord(*this->face2, 0, *interest2);
+  pitEntry->insertOrUpdateOutRecord(*this->face3, 0, *interest1);
 
   lp::Nack nack3 = makeNack("/McQYjMbm", 992, lp::NackReason::CONGESTION);
-  pitEntry->getOutRecord(*this->face3)->setIncomingNack(nack3);
+  pitEntry->getOutRecord(*this->face3, 0)->setIncomingNack(nack3);
 
   BOOST_REQUIRE(this->strategy.waitForAction(
     [&] { this->strategy.afterReceiveNack(*this->face3, nack3, pitEntry); },
@@ -137,18 +137,18 @@
 
   shared_ptr<Interest> interest1 = makeInterest("/aS9FAyUV19", 286);
   shared_ptr<pit::Entry> pitEntry = this->pit.insert(*interest1).first;
-  pitEntry->insertOrUpdateInRecord(*this->face1, *interest1);
-  pitEntry->insertOrUpdateOutRecord(*this->face3, *interest1);
-  pitEntry->insertOrUpdateOutRecord(*this->face4, *interest1);
+  pitEntry->insertOrUpdateInRecord(*this->face1, 0, *interest1);
+  pitEntry->insertOrUpdateOutRecord(*this->face3, 0, *interest1);
+  pitEntry->insertOrUpdateOutRecord(*this->face4, 0, *interest1);
 
   lp::Nack nack3 = makeNack("/aS9FAyUV19", 286, lp::NackReason::CONGESTION);
-  pitEntry->getOutRecord(*this->face3)->setIncomingNack(nack3);
+  pitEntry->getOutRecord(*this->face3, 0)->setIncomingNack(nack3);
   this->strategy.afterReceiveNack(*this->face3, nack3, pitEntry);
 
   BOOST_CHECK_EQUAL(this->strategy.sendNackHistory.size(), 0); // don't send Nack until all upstreams have Nacked
 
   lp::Nack nack4 = makeNack("/aS9FAyUV19", 286, lp::NackReason::CONGESTION);
-  pitEntry->getOutRecord(*this->face4)->setIncomingNack(nack4);
+  pitEntry->getOutRecord(*this->face4, 0)->setIncomingNack(nack4);
   BOOST_REQUIRE(this->strategy.waitForAction(
     [&] { this->strategy.afterReceiveNack(*this->face4, nack4, pitEntry); },
     this->limitedIo));
@@ -171,18 +171,18 @@
   shared_ptr<Interest> interest1 = makeInterest("/sIYw0TXWDj", 115);
   interest1->setInterestLifetime(time::milliseconds(400));
   shared_ptr<pit::Entry> pitEntry = this->pit.insert(*interest1).first;
-  pitEntry->insertOrUpdateInRecord(*this->face1, *interest1);
-  pitEntry->insertOrUpdateOutRecord(*this->face3, *interest1);
+  pitEntry->insertOrUpdateInRecord(*this->face1, 0, *interest1);
+  pitEntry->insertOrUpdateOutRecord(*this->face3, 0, *interest1);
 
   this->advanceClocks(time::milliseconds(300));
   shared_ptr<Interest> interest2 = makeInterest("/sIYw0TXWDj", 223);
-  pitEntry->insertOrUpdateInRecord(*this->face1, *interest2);
-  pitEntry->insertOrUpdateOutRecord(*this->face4, *interest2);
+  pitEntry->insertOrUpdateInRecord(*this->face1, 0, *interest2);
+  pitEntry->insertOrUpdateOutRecord(*this->face4, 0, *interest2);
 
   this->advanceClocks(time::milliseconds(200)); // face3 has timed out
 
   lp::Nack nack4 = makeNack("/sIYw0TXWDj", 223, lp::NackReason::CONGESTION);
-  pitEntry->getOutRecord(*this->face4)->setIncomingNack(nack4);
+  pitEntry->getOutRecord(*this->face4, 0)->setIncomingNack(nack4);
   this->strategy.afterReceiveNack(*this->face4, nack4, pitEntry);
 
   BOOST_CHECK_EQUAL(this->strategy.sendNackHistory.size(), 0);
@@ -323,18 +323,18 @@
 
   shared_ptr<Interest> interest1 = makeInterest("/F6sEwB24I", 282);
   shared_ptr<pit::Entry> pitEntry = pit.insert(*interest1).first;
-  pitEntry->insertOrUpdateInRecord(*face1, *interest1);
-  pitEntry->insertOrUpdateOutRecord(*face3, *interest1);
-  pitEntry->insertOrUpdateOutRecord(*face4, *interest1);
+  pitEntry->insertOrUpdateInRecord(*face1, 0, *interest1);
+  pitEntry->insertOrUpdateOutRecord(*face3, 0, *interest1);
+  pitEntry->insertOrUpdateOutRecord(*face4, 0, *interest1);
 
   lp::Nack nack3 = makeNack(*interest1, Combination::getX());
-  pitEntry->getOutRecord(*face3)->setIncomingNack(nack3);
+  pitEntry->getOutRecord(*face3, 0)->setIncomingNack(nack3);
   strategy.afterReceiveNack(*face3, nack3, pitEntry);
 
   BOOST_CHECK_EQUAL(strategy.sendNackHistory.size(), 0);
 
   lp::Nack nack4 = makeNack(*interest1, Combination::getY());
-  pitEntry->getOutRecord(*face4)->setIncomingNack(nack4);
+  pitEntry->getOutRecord(*face4, 0)->setIncomingNack(nack4);
   strategy.afterReceiveNack(*face4, nack4, pitEntry);
 
   BOOST_REQUIRE_EQUAL(strategy.sendNackHistory.size(), 1);
diff --git a/tests/daemon/fw/strategy-no-route.t.cpp b/tests/daemon/fw/strategy-no-route.t.cpp
index 8183caf..4719c5e 100644
--- a/tests/daemon/fw/strategy-no-route.t.cpp
+++ b/tests/daemon/fw/strategy-no-route.t.cpp
@@ -161,7 +161,7 @@
 
   shared_ptr<Interest> interest = makeInterest(scenario.getInterestName());
   shared_ptr<pit::Entry> pitEntry = this->pit.insert(*interest).first;
-  pitEntry->insertOrUpdateInRecord(*this->face1, *interest);
+  pitEntry->insertOrUpdateInRecord(*this->face1, 0, *interest);
 
   BOOST_REQUIRE(this->strategy.waitForAction(
     [&] { this->strategy.afterReceiveInterest(*this->face1, *interest, pitEntry); },
diff --git a/tests/daemon/fw/strategy-scope-control.t.cpp b/tests/daemon/fw/strategy-scope-control.t.cpp
index bd59838..029ab0e 100644
--- a/tests/daemon/fw/strategy-scope-control.t.cpp
+++ b/tests/daemon/fw/strategy-scope-control.t.cpp
@@ -122,7 +122,7 @@
 
   shared_ptr<Interest> interest = makeInterest("/localhost/A/1");
   shared_ptr<pit::Entry> pitEntry = this->pit.insert(*interest).first;
-  pitEntry->insertOrUpdateInRecord(*this->localFace3, *interest);
+  pitEntry->insertOrUpdateInRecord(*this->localFace3, 0, *interest);
 
   BOOST_REQUIRE(this->strategy.waitForAction(
     [&] { this->strategy.afterReceiveInterest(*this->localFace3, *interest, pitEntry); },
@@ -141,7 +141,7 @@
 
   shared_ptr<Interest> interest = makeInterest("/localhost/A/1");
   shared_ptr<pit::Entry> pitEntry = this->pit.insert(*interest).first;
-  pitEntry->insertOrUpdateInRecord(*this->localFace3, *interest);
+  pitEntry->insertOrUpdateInRecord(*this->localFace3, 0, *interest);
 
   BOOST_REQUIRE(this->strategy.waitForAction(
     [&] { this->strategy.afterReceiveInterest(*this->localFace3, *interest, pitEntry); },
@@ -164,7 +164,7 @@
 
   shared_ptr<Interest> interest = makeInterest("/localhost/A/1");
   shared_ptr<pit::Entry> pitEntry = this->pit.insert(*interest).first;
-  pitEntry->insertOrUpdateInRecord(*this->localFace3, *interest);
+  pitEntry->insertOrUpdateInRecord(*this->localFace3, 0, *interest);
 
   BOOST_REQUIRE(this->strategy.waitForAction(
     [&] { this->strategy.afterReceiveInterest(*this->localFace3, *interest, pitEntry); },
@@ -184,7 +184,7 @@
 
   shared_ptr<Interest> interest = makeInterest("/localhop/A/1");
   shared_ptr<pit::Entry> pitEntry = this->pit.insert(*interest).first;
-  pitEntry->insertOrUpdateInRecord(*this->nonLocalFace1, *interest);
+  pitEntry->insertOrUpdateInRecord(*this->nonLocalFace1, 0, *interest);
 
   BOOST_REQUIRE(this->strategy.waitForAction(
     [&] { this->strategy.afterReceiveInterest(*this->nonLocalFace1, *interest, pitEntry); },
@@ -207,7 +207,7 @@
 
   shared_ptr<Interest> interest = makeInterest("/localhop/A/1");
   shared_ptr<pit::Entry> pitEntry = this->pit.insert(*interest).first;
-  pitEntry->insertOrUpdateInRecord(*this->nonLocalFace1, *interest);
+  pitEntry->insertOrUpdateInRecord(*this->nonLocalFace1, 0, *interest);
 
   BOOST_REQUIRE(this->strategy.waitForAction(
     [&] { this->strategy.afterReceiveInterest(*this->nonLocalFace1, *interest, pitEntry); },
@@ -228,9 +228,9 @@
 
   shared_ptr<Interest> interest = makeInterest("/localhost/A/1", 1460);
   shared_ptr<pit::Entry> pitEntry = this->pit.insert(*interest).first;
-  pitEntry->insertOrUpdateInRecord(*this->localFace3, *interest);
+  pitEntry->insertOrUpdateInRecord(*this->localFace3, 0, *interest);
   lp::Nack nack = makeNack("/localhost/A/1", 1460, lp::NackReason::NO_ROUTE);
-  pitEntry->insertOrUpdateOutRecord(*this->localFace4, *interest)->setIncomingNack(nack);
+  pitEntry->insertOrUpdateOutRecord(*this->localFace4, 0, *interest)->setIncomingNack(nack);
 
   BOOST_REQUIRE(this->strategy.waitForAction(
     [&] { this->strategy.afterReceiveNack(*this->localFace4, nack, pitEntry); },
@@ -253,9 +253,9 @@
 
   shared_ptr<Interest> interest = makeInterest("/localhop/A/1", 1377);
   shared_ptr<pit::Entry> pitEntry = this->pit.insert(*interest).first;
-  pitEntry->insertOrUpdateInRecord(*this->nonLocalFace1, *interest);
+  pitEntry->insertOrUpdateInRecord(*this->nonLocalFace1, 0, *interest);
   lp::Nack nack = makeNack("/localhop/A/1", 1377, lp::NackReason::NO_ROUTE);
-  pitEntry->insertOrUpdateOutRecord(*this->localFace4, *interest)->setIncomingNack(nack);
+  pitEntry->insertOrUpdateOutRecord(*this->localFace4, 0, *interest)->setIncomingNack(nack);
 
   BOOST_REQUIRE(this->strategy.waitForAction(
     [&] { this->strategy.afterReceiveNack(*this->localFace4, nack, pitEntry); },
diff --git a/tests/daemon/fw/strategy-tester.hpp b/tests/daemon/fw/strategy-tester.hpp
index 0d76d76..c842327 100644
--- a/tests/daemon/fw/strategy-tester.hpp
+++ b/tests/daemon/fw/strategy-tester.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
- * Copyright (c) 2014-2017,  Regents of the University of California,
+/*
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -110,7 +110,7 @@
                const Interest& interest) override
   {
     sendInterestHistory.push_back({pitEntry->getInterest(), outFace.getId(), interest});
-    pitEntry->insertOrUpdateOutRecord(outFace, interest);
+    pitEntry->insertOrUpdateOutRecord(outFace, 0, interest);
     afterAction();
   }
 
@@ -126,7 +126,7 @@
            const lp::NackHeader& header) override
   {
     sendNackHistory.push_back({pitEntry->getInterest(), outFace.getId(), header});
-    pitEntry->deleteInRecord(outFace);
+    pitEntry->deleteInRecord(outFace, 0);
     afterAction();
   }
 
diff --git a/tests/daemon/table/cleanup.t.cpp b/tests/daemon/table/cleanup.t.cpp
index 3365a50..c6bd772 100644
--- a/tests/daemon/table/cleanup.t.cpp
+++ b/tests/daemon/table/cleanup.t.cpp
@@ -55,10 +55,10 @@
     shared_ptr<Interest> interest = makeInterest(name);
     shared_ptr<pit::Entry> pitEntry = pit.insert(*interest).first;
     if ((i & 0x01) != 0) {
-      pitEntry->insertOrUpdateInRecord(*face1, *interest);
+      pitEntry->insertOrUpdateInRecord(*face1, 0, *interest);
     }
     if ((i & 0x02) != 0) {
-      pitEntry->insertOrUpdateOutRecord(*face1, *interest);
+      pitEntry->insertOrUpdateOutRecord(*face1, 0, *interest);
     }
   }
   BOOST_CHECK_EQUAL(fib.size(), 300);
@@ -144,22 +144,22 @@
 
   shared_ptr<Interest> interestA = makeInterest("/A");
   shared_ptr<pit::Entry> entryA = pit.insert(*interestA).first;
-  entryA->insertOrUpdateInRecord(*face1, *interestA);
-  entryA->insertOrUpdateInRecord(*face2, *interestA);
-  entryA->insertOrUpdateOutRecord(*face1, *interestA);
-  entryA->insertOrUpdateOutRecord(*face2, *interestA);
+  entryA->insertOrUpdateInRecord(*face1, 0, *interestA);
+  entryA->insertOrUpdateInRecord(*face2, 0, *interestA);
+  entryA->insertOrUpdateOutRecord(*face1, 0, *interestA);
+  entryA->insertOrUpdateOutRecord(*face2, 0, *interestA);
   // {'/A':[1,2]}
 
   shared_ptr<Interest> interestB = makeInterest("/B");
   shared_ptr<pit::Entry> entryB = pit.insert(*interestB).first;
-  entryB->insertOrUpdateInRecord(*face1, *interestB);
-  entryB->insertOrUpdateOutRecord(*face1, *interestB);
+  entryB->insertOrUpdateInRecord(*face1, 0, *interestB);
+  entryB->insertOrUpdateOutRecord(*face1, 0, *interestB);
   // {'/A':[1,2], '/B':[1]}
 
   shared_ptr<Interest> interestC = makeInterest("/C");
   shared_ptr<pit::Entry> entryC = pit.insert(*interestC).first;
-  entryC->insertOrUpdateInRecord(*face2, *interestC);
-  entryC->insertOrUpdateOutRecord(*face2, *interestC);
+  entryC->insertOrUpdateInRecord(*face2, 0, *interestC);
+  entryC->insertOrUpdateOutRecord(*face2, 0, *interestC);
   // {'/A':[1,2], '/B':[1], '/C':[2]}
   BOOST_CHECK_EQUAL(pit.size(), 3);
 
diff --git a/tests/daemon/table/pit-entry.t.cpp b/tests/daemon/table/pit-entry.t.cpp
index effb624..d4234ad 100644
--- a/tests/daemon/table/pit-entry.t.cpp
+++ b/tests/daemon/table/pit-entry.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2017,  Regents of the University of California,
+ * Copyright (c) 2014-2019,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -94,7 +94,7 @@
 
   // insert in-record
   time::steady_clock::TimePoint before1 = time::steady_clock::now();
-  InRecordCollection::iterator in1 = entry.insertOrUpdateInRecord(*face1, *interest1);
+  InRecordCollection::iterator in1 = entry.insertOrUpdateInRecord(*face1, 0, *interest1);
   time::steady_clock::TimePoint after1 = time::steady_clock::now();
   const InRecordCollection& inRecords2 = entry.getInRecords();
   BOOST_CHECK_EQUAL(inRecords2.size(), 1);
@@ -106,11 +106,11 @@
   BOOST_CHECK_LE(in1->getExpiry() - in1->getLastRenewed()
                  - interest1->getInterestLifetime(),
                  (after1 - before1));
-  BOOST_CHECK(in1 == entry.getInRecord(*face1));
+  BOOST_CHECK(in1 == entry.getInRecord(*face1, 0));
 
   // insert out-record
   time::steady_clock::TimePoint before2 = time::steady_clock::now();
-  OutRecordCollection::iterator out1 = entry.insertOrUpdateOutRecord(*face1, *interest1);
+  OutRecordCollection::iterator out1 = entry.insertOrUpdateOutRecord(*face1, 0, *interest1);
   time::steady_clock::TimePoint after2 = time::steady_clock::now();
   const OutRecordCollection& outRecords2 = entry.getOutRecords();
   BOOST_CHECK_EQUAL(outRecords2.size(), 1);
@@ -122,11 +122,11 @@
   BOOST_CHECK_LE(out1->getExpiry() - out1->getLastRenewed()
                  - interest1->getInterestLifetime(),
                  (after2 - before2));
-  BOOST_CHECK(out1 == entry.getOutRecord(*face1));
+  BOOST_CHECK(out1 == entry.getOutRecord(*face1, 0));
 
   // update in-record
   time::steady_clock::TimePoint before3 = time::steady_clock::now();
-  InRecordCollection::iterator in2 = entry.insertOrUpdateInRecord(*face1, *interest2);
+  InRecordCollection::iterator in2 = entry.insertOrUpdateInRecord(*face1, 0, *interest2);
   time::steady_clock::TimePoint after3 = time::steady_clock::now();
   const InRecordCollection& inRecords3 = entry.getInRecords();
   BOOST_CHECK_EQUAL(inRecords3.size(), 1);
@@ -138,13 +138,13 @@
                  (after3 - before3));
 
   // insert another in-record
-  InRecordCollection::iterator in3 = entry.insertOrUpdateInRecord(*face2, *interest3);
+  InRecordCollection::iterator in3 = entry.insertOrUpdateInRecord(*face2, 0, *interest3);
   const InRecordCollection& inRecords4 = entry.getInRecords();
   BOOST_CHECK_EQUAL(inRecords4.size(), 2);
   BOOST_CHECK_EQUAL(&in3->getFace(), face2.get());
 
   // get in-record
-  InRecordCollection::iterator in4 = entry.getInRecord(*face1);
+  InRecordCollection::iterator in4 = entry.getInRecord(*face1, 0);
   BOOST_REQUIRE(in4 != entry.in_end());
   BOOST_CHECK_EQUAL(&in4->getFace(), face1.get());
 
@@ -152,26 +152,26 @@
   entry.clearInRecords();
   const InRecordCollection& inRecords5 = entry.getInRecords();
   BOOST_CHECK_EQUAL(inRecords5.size(), 0);
-  BOOST_CHECK(entry.getInRecord(*face1) == entry.in_end());
+  BOOST_CHECK(entry.getInRecord(*face1, 0) == entry.in_end());
 
   // insert another out-record
   OutRecordCollection::iterator out2 =
-    entry.insertOrUpdateOutRecord(*face2, *interest4);
+    entry.insertOrUpdateOutRecord(*face2, 0, *interest4);
   const OutRecordCollection& outRecords3 = entry.getOutRecords();
   BOOST_CHECK_EQUAL(outRecords3.size(), 2);
   BOOST_CHECK_EQUAL(&out2->getFace(), face2.get());
 
   // get out-record
-  OutRecordCollection::iterator out3 = entry.getOutRecord(*face1);
+  OutRecordCollection::iterator out3 = entry.getOutRecord(*face1, 0);
   BOOST_REQUIRE(out3 != entry.out_end());
   BOOST_CHECK_EQUAL(&out3->getFace(), face1.get());
 
   // delete out-record
-  entry.deleteOutRecord(*face2);
+  entry.deleteOutRecord(*face2, 0);
   const OutRecordCollection& outRecords4 = entry.getOutRecords();
   BOOST_REQUIRE_EQUAL(outRecords4.size(), 1);
   BOOST_CHECK_EQUAL(&outRecords4.begin()->getFace(), face1.get());
-  BOOST_CHECK(entry.getOutRecord(*face2) == entry.out_end());
+  BOOST_CHECK(entry.getOutRecord(*face2, 0) == entry.out_end());
 }
 
 BOOST_AUTO_TEST_CASE(Lifetime)
@@ -181,17 +181,17 @@
   shared_ptr<Face> face = make_shared<DummyFace>();
   Entry entry(*interest);
 
-  InRecordCollection::iterator inIt = entry.insertOrUpdateInRecord(*face, *interest);
+  InRecordCollection::iterator inIt = entry.insertOrUpdateInRecord(*face, 0, *interest);
   BOOST_CHECK_GT(inIt->getExpiry(), time::steady_clock::now());
 
-  OutRecordCollection::iterator outIt = entry.insertOrUpdateOutRecord(*face, *interest);
+  OutRecordCollection::iterator outIt = entry.insertOrUpdateOutRecord(*face, 0, *interest);
   BOOST_CHECK_GT(outIt->getExpiry(), time::steady_clock::now());
 }
 
 BOOST_AUTO_TEST_CASE(OutRecordNack)
 {
   shared_ptr<Face> face1 = make_shared<DummyFace>();
-  OutRecord outR(*face1);
+  OutRecord outR(*face1, 0);
   BOOST_CHECK(outR.getIncomingNack() == nullptr);
 
   shared_ptr<Interest> interest1 = makeInterest("ndn:/uWiapGjYL");