diff --git a/src/network/model/node.cc b/src/network/model/node.cc
index 7320d4535..bd76674ef 100644
--- a/src/network/model/node.cc
+++ b/src/network/model/node.cc
@@ -62,6 +62,11 @@ Node::GetTypeId (void)
                    UintegerValue (0),
                    MakeUintegerAccessor (&Node::m_id),
                    MakeUintegerChecker<uint32_t> ())
+    .AddAttribute ("SystemId", "The systemId of this node: a unique integer used for parallel simulations.",
+                   TypeId::ATTR_GET|TypeId::ATTR_SET,
+                   UintegerValue (0),
+                   MakeUintegerAccessor (&Node::m_sid),
+                   MakeUintegerChecker<uint32_t> ())
   ;
   return tid;
 }