diff --git a/src/contrib/attribute-iterator.cc b/src/contrib/attribute-iterator.cc
index a6cd0c77c..53d844b7e 100644
--- a/src/contrib/attribute-iterator.cc
+++ b/src/contrib/attribute-iterator.cc
@@ -21,6 +21,7 @@
 #include "ns3/log.h"
 #include "ns3/pointer.h"
 #include "ns3/object-vector.h"
+#include "ns3/object-map.h"
 #include "ns3/string.h"
 #include <fstream>
 
@@ -125,6 +126,28 @@ AttributeIterator::DoEndVisitArrayItem (void)
 {
 }
 
+void
+AttributeIterator::DoStartVisitMapAttribute (Ptr<Object> object, std::string name, const ObjectMapValue &map)
+{
+
+}
+void
+AttributeIterator::DoEndVisitMapAttribute (void)
+{
+
+}
+
+void
+AttributeIterator::DoStartVisitMapItem (const ObjectMapValue &vector, uint32_t index, Ptr<Object> item)
+{
+
+}
+void
+AttributeIterator::DoEndVisitMapItem (void)
+{
+
+}
+
 void 
 AttributeIterator::VisitAttribute (Ptr<Object> object, std::string name)
 {
@@ -189,6 +212,37 @@ AttributeIterator::EndVisitArrayItem (void)
   DoEndVisitArrayItem ();
 }
 
+void
+AttributeIterator::StartVisitMapAttribute (Ptr<Object> object, std::string name, const ObjectMapValue &map)
+{
+  m_currentPath.push_back (name);
+  DoStartVisitMapAttribute (object, name, map);
+}
+
+void
+AttributeIterator::EndVisitMapAttribute (void)
+{
+  m_currentPath.pop_back ();
+  DoEndVisitArrayAttribute ();
+}
+
+void
+AttributeIterator::StartVisitMapItem (const ObjectMapValue &map, uint32_t index, Ptr<Object> item)
+{
+  std::ostringstream oss;
+  oss << index;
+  m_currentPath.push_back (oss.str ());
+  m_currentPath.push_back ("$" + item->GetInstanceTypeId ().GetName ());
+  DoStartVisitMapItem (map, index, item);
+}
+
+void
+AttributeIterator::EndVisitMapItem (void)
+{
+  m_currentPath.pop_back ();
+  m_currentPath.pop_back ();
+  DoEndVisitMapItem ();
+}
 
 void
 AttributeIterator::DoIterate (Ptr<Object> object)
@@ -243,6 +297,27 @@ AttributeIterator::DoIterate (Ptr<Object> object)
               EndVisitArrayAttribute ();
               continue;
             }
+          // attempt to cast to an object map.
+          const ObjectMapChecker *mapChecker = dynamic_cast<const ObjectMapChecker *> (PeekPointer (checker));
+          if (mapChecker != 0)
+            {
+              NS_LOG_DEBUG ("map attribute " << tid.GetAttributeName (i));
+              ObjectMapValue map;
+              object->GetAttribute (tid.GetAttributeName (i), map);
+              // JNG Fix this
+              StartVisitMapAttribute (object, tid.GetAttributeName (i), map);
+              for (ObjectMapValue::Iterator it = map.Begin () ; it != map.End(); it++ )
+                {
+                  NS_LOG_DEBUG ("map attribute item " << (*it).first << (*it).second );
+                  StartVisitMapItem (map, (*it).first, (*it).second);
+                  m_examined.push_back (object);
+                  DoIterate ((*it).second);
+                  m_examined.pop_back ();
+                  EndVisitMapItem ();
+                }
+              EndVisitMapAttribute ();
+              continue;
+            }
           uint32_t flags = tid.GetAttributeFlags (i);
           Ptr<const AttributeAccessor> accessor = tid.GetAttributeAccessor (i);
           if ((flags & TypeId::ATTR_GET) && accessor->HasGetter () && 
diff --git a/src/contrib/attribute-iterator.h b/src/contrib/attribute-iterator.h
index 84912d207..4b34ec984 100644
--- a/src/contrib/attribute-iterator.h
+++ b/src/contrib/attribute-iterator.h
@@ -26,6 +26,7 @@
 namespace ns3 {
 
 class ObjectVectorValue;
+class ObjectMapValue;
 
 // This class is used internally by ConfigStore and GtkConfigStore.
 class AttributeIterator
@@ -48,6 +49,11 @@ private:
   virtual void DoStartVisitArrayItem (const ObjectVectorValue &vector, uint32_t index, Ptr<Object> item);
   virtual void DoEndVisitArrayItem (void);
 
+  virtual void DoStartVisitMapAttribute (Ptr<Object> object, std::string name, const ObjectMapValue &map);
+  virtual void DoEndVisitMapAttribute (void);
+  virtual void DoStartVisitMapItem (const ObjectMapValue &vector, uint32_t index, Ptr<Object> item);
+  virtual void DoEndVisitMapItem (void);
+
   void DoIterate (Ptr<Object> object);
   bool IsExamined (Ptr<const Object> object);
   std::string GetCurrentPath (std::string attr) const;
@@ -62,6 +68,10 @@ private:
   void StartVisitArrayItem (const ObjectVectorValue &vector, uint32_t index, Ptr<Object> item);
   void EndVisitArrayItem (void);
 
+  void StartVisitMapAttribute (Ptr<Object> object, std::string name, const ObjectMapValue &map);
+  void EndVisitMapAttribute (void);
+  void StartVisitMapItem (const ObjectMapValue &vector, uint32_t index, Ptr<Object> item);
+  void EndVisitMapItem (void);
 
   std::vector<Ptr<Object> > m_examined;
   std::vector<std::string> m_currentPath;
diff --git a/src/core/model/object-map.cc b/src/core/model/object-map.cc
new file mode 100644
index 000000000..1434c6cf6
--- /dev/null
+++ b/src/core/model/object-map.cc
@@ -0,0 +1,109 @@
+#include "object-map.h"
+#include <ns3/log.h>
+
+namespace ns3 {
+
+NS_LOG_COMPONENT_DEFINE ("ObjectMapValue");
+
+ObjectMapValue::ObjectMapValue ()
+{}
+
+ObjectMapValue::Iterator
+ObjectMapValue::Begin (void) const
+{
+  NS_LOG_FUNCTION (this);
+  return m_objects.begin ();
+}
+ObjectMapValue::Iterator
+ObjectMapValue::End (void) const
+{
+  NS_LOG_FUNCTION (this);
+  return m_objects.end ();
+}
+uint32_t 
+ObjectMapValue::GetN (void) const
+{
+  NS_LOG_FUNCTION (this);
+  return m_objects.size ();
+}
+Ptr<Object> 
+ObjectMapValue::Get (uint32_t i) const
+{
+  NS_LOG_FUNCTION (this);
+  return m_objects.find(i)->second;
+}
+
+Ptr<AttributeValue>
+ObjectMapValue::Copy (void) const
+{
+  NS_LOG_FUNCTION (this);
+  return ns3::Create<ObjectMapValue> (*this);
+}
+std::string 
+ObjectMapValue::SerializeToString (Ptr<const AttributeChecker> checker) const
+{
+  NS_LOG_FUNCTION (this);
+  std::ostringstream oss;
+  for (ObjectMapValue::Iterator it = Begin () ; it != End(); it++ )
+  {
+    oss << (*it).first << "-" << (*it).second;
+    if (it != End () )
+    {
+      oss << " ";
+    }
+  }
+  return oss.str ();
+}
+
+bool 
+ObjectMapValue::DeserializeFromString (std::string value, Ptr<const AttributeChecker> checker)
+{
+  NS_FATAL_ERROR ("cannot deserialize a map of object pointers.");
+  return true;
+}
+
+bool 
+ObjectMapAccessor::Set (ObjectBase * object, const AttributeValue & value) const
+{
+  // not allowed.
+  return false;
+}
+bool 
+ObjectMapAccessor::Get (const ObjectBase * object, AttributeValue &value) const
+{
+  NS_LOG_FUNCTION (this);
+  ObjectMapValue *v = dynamic_cast<ObjectMapValue *> (&value);
+  if (v == 0)
+    {
+      return false;
+    }
+  v->m_objects.clear ();
+  uint32_t n;
+  bool ok = DoGetN (object, &n);
+  if (!ok)
+    {
+      return false;
+    }
+  for (uint32_t i = 0; i < n; i++)
+    {
+
+      std::pair<uint32_t, Ptr<Object> > element = DoGet (object, i);
+      NS_LOG_FUNCTION(i << object << element.first << element.second);
+
+      v->m_objects.insert (  DoGet (object, i));
+    }
+
+  return true;
+}
+bool 
+ObjectMapAccessor::HasGetter (void) const
+{
+  return true;
+}
+bool 
+ObjectMapAccessor::HasSetter (void) const
+{
+  return false;
+}
+
+} // name
diff --git a/src/core/model/object-map.h b/src/core/model/object-map.h
new file mode 100644
index 000000000..5777e3ab9
--- /dev/null
+++ b/src/core/model/object-map.h
@@ -0,0 +1,217 @@
+#ifndef OBJECT_MAP_H
+#define OBJECT_MAP_H
+
+#include "object.h"
+#include "ptr.h"
+#include "attribute.h"
+
+#include <map>
+
+namespace ns3 {
+
+/**
+ * \ingroup object
+ * 
+ * \brief contain a map of ns3::Object pointers.
+ *
+ * This class it used to get attribute access to an array of
+ * ns3::Object pointers.
+ */
+class ObjectMapValue : public AttributeValue
+{
+
+
+public:
+  typedef std::map<uint32_t, Ptr<Object> >::const_iterator Iterator;
+
+  ObjectMapValue ();
+
+  /**
+   * \returns an iterator to the first object contained in this map
+   */
+  Iterator Begin (void) const;
+  /**
+   * \returns an iterator to the last object contained in this map
+   */
+  Iterator End (void) const;
+  /**
+   * \returns the number of objects contained in this map.
+   */
+  uint32_t GetN (void) const;
+  /**
+   * \param i the index of the requested object.
+   * \returns the requested object
+   */
+  Ptr<Object> Get (uint32_t i) const;
+
+  virtual Ptr<AttributeValue> Copy (void) const;
+  virtual std::string SerializeToString (Ptr<const AttributeChecker> checker) const;
+  virtual bool DeserializeFromString (std::string value, Ptr<const AttributeChecker> checker);
+
+private:
+  friend class ObjectMapAccessor;
+  std::map<uint32_t, Ptr<Object> > m_objects;
+};
+
+template <typename T, typename U>
+Ptr<const AttributeAccessor>
+MakeObjectMapAccessor (U T::*memberMap);
+
+template <typename T, typename U, typename INDEX>
+Ptr<const AttributeAccessor>
+MakeObjectMapAccessor (Ptr<U> (T::*get) (INDEX) const,
+			  INDEX (T::*getN) (void) const);
+
+template <typename T, typename U, typename INDEX>
+Ptr<const AttributeAccessor>
+MakeObjectMapAccessor (INDEX (T::*getN) (void) const,
+			  Ptr<U> (T::*get) (INDEX) const);
+
+class ObjectMapChecker : public AttributeChecker
+{
+public:
+  virtual TypeId GetItemTypeId (void) const = 0;
+};
+
+template <typename T>
+Ptr<const AttributeChecker> MakeObjectMapChecker (void);
+
+} // namespace ns3
+
+namespace ns3 {
+
+namespace internal {
+
+template <typename T>
+class AnObjectMapChecker : public ObjectMapChecker
+{
+public:
+  virtual TypeId GetItemTypeId (void) const {
+    return T::GetTypeId ();
+  }
+  virtual bool Check (const AttributeValue &value) const {
+    return dynamic_cast<const ObjectMapValue *> (&value) != 0;
+  }
+  virtual std::string GetValueTypeName (void) const {
+    return "ns3::ObjectMapValue";
+  }
+  virtual bool HasUnderlyingTypeInformation (void) const {
+    return true;
+  }
+  virtual std::string GetUnderlyingTypeInformation (void) const {
+    return "ns3::Ptr< " + T::GetTypeId ().GetName () + " >";
+  }
+  virtual Ptr<AttributeValue> Create (void) const {
+    return ns3::Create<ObjectMapValue> ();
+  }
+  virtual bool Copy (const AttributeValue &source, AttributeValue &destination) const {
+    const ObjectMapValue *src = dynamic_cast<const ObjectMapValue *> (&source);
+    ObjectMapValue *dst = dynamic_cast<ObjectMapValue *> (&destination);
+    if (src == 0 || dst == 0)
+      {
+	return false;
+      }
+    *dst = *src;
+    return true;    
+  }
+};
+
+} // namespace internal
+
+class ObjectMapAccessor : public AttributeAccessor
+{
+public:
+  virtual bool Set (ObjectBase * object, const AttributeValue &value) const;
+  virtual bool Get (const ObjectBase * object, AttributeValue &value) const;
+  virtual bool HasGetter (void) const;
+  virtual bool HasSetter (void) const;
+private:
+  virtual bool DoGetN (const ObjectBase *object, uint32_t *n) const = 0;
+  virtual std::pair<uint32_t, Ptr<Object> > DoGet (const ObjectBase *object, uint32_t i) const = 0;
+};
+
+template <typename T, typename U>
+Ptr<const AttributeAccessor>
+MakeObjectMapAccessor (U T::*memberMap)
+{
+  struct MemberStdContainer : public ObjectMapAccessor
+  {
+    virtual bool DoGetN (const ObjectBase *object, uint32_t *n) const {
+      const T *obj = dynamic_cast<const T *> (object);
+      if (obj == 0)
+	{
+	  return false;
+	}
+      *n = (obj->*m_memberMap).size ();
+      return true;
+    }
+    virtual std::pair<uint32_t, Ptr<Object> > DoGet (const ObjectBase *object, uint32_t i) const {
+      const T *obj = static_cast<const T *> (object);
+      typename U::const_iterator begin = (obj->*m_memberMap).begin ();
+      typename U::const_iterator end = (obj->*m_memberMap).end ();
+      uint32_t k = 0;
+      for (typename U::const_iterator j = begin; j != end; j++, k++)
+	{
+	  if (k == i)
+	    {
+	      return std::pair<uint32_t, Ptr<Object> > ( k, (*j).second);
+	      break;
+	    }
+	}
+      NS_ASSERT (false);
+      // quiet compiler.
+      std::pair<uint32_t, Ptr<Object> > empty;
+      return empty;
+    }
+    U T::*m_memberMap;
+  } *spec = new MemberStdContainer ();
+  spec->m_memberMap = memberMap;
+  return Ptr<const AttributeAccessor> (spec, false);
+}
+
+template <typename T, typename U, typename INDEX>
+Ptr<const AttributeAccessor>
+MakeObjectMapAccessor (Ptr<U> (T::*get) (INDEX) const,
+			   INDEX (T::*getN) (void) const)
+{
+  struct MemberGetters : public ObjectMapAccessor
+  {
+    virtual bool DoGetN (const ObjectBase *object, uint32_t *n) const {
+      const T *obj = dynamic_cast<const T *> (object);
+      if (obj == 0)
+	{
+	  return false;
+	}
+      *n = (obj->*m_getN) ();
+      return true;
+    }
+    virtual Ptr<Object> DoGet (const ObjectBase *object, uint32_t i) const {
+      const T *obj = static_cast<const T *> (object);
+      return (obj->*m_get) (i);
+    }
+    Ptr<U> (T::*m_get) (INDEX) const;
+    INDEX (T::*m_getN) (void) const;
+  } *spec = new MemberGetters ();
+  spec->m_get = get;
+  spec->m_getN = getN;
+  return Ptr<const AttributeAccessor> (spec, false);
+}
+
+template <typename T, typename U, typename INDEX>
+Ptr<const AttributeAccessor>
+MakeObjectMapAccessor (INDEX (T::*getN) (void) const,
+			   Ptr<U> (T::*get) (INDEX) const)
+{
+  return MakeObjectMapAccessor (get, getN);
+}
+
+template <typename T>
+Ptr<const AttributeChecker> MakeObjectMapChecker (void)
+{
+  return Create<internal::AnObjectMapChecker<T> > ();
+}
+
+
+} // namespace ns3
+
+#endif /* OBJECT_MAP_H */
diff --git a/src/core/wscript b/src/core/wscript
index e68a09e34..ba14bc77d 100644
--- a/src/core/wscript
+++ b/src/core/wscript
@@ -130,6 +130,7 @@ def build(bld):
         'model/string.cc',
         'model/pointer.cc',
         'model/object-vector.cc',
+        'model/object-map.cc',
         'model/object-factory.cc',
         'model/global-value.cc',
         'model/trace-source-accessor.cc',
@@ -207,6 +208,7 @@ def build(bld):
         'model/trace-source-accessor.h',
         'model/config.h',
         'model/object-vector.h',
+        'model/object-map.h',
         'model/deprecated.h',
         'model/abort.h',
         'model/names.h',