diff --git a/osm_ro/vimconn.py b/osm_ro/vimconn.py
index 4a7cc09..5c94840 100644
--- a/osm_ro/vimconn.py
+++ b/osm_ro/vimconn.py
@@ -331,7 +331,11 @@
                 'dhcp_count': number of IPs to grant.
             'shared': if this network can be seen/use by other tenants/organization
             'vlan': in case of a data or ptp net_type, the intended vlan tag to be used for the network
-        Returns the network identifier on success or raises and exception on failure
+        Returns a tuple with the network identifier and created_items, or raises an exception on error
+            created_items can be None or a dictionary where this method can include key-values that will be passed to
+            the method delete_network. Can be used to store created segments, created l2gw connections, etc.
+            Format is vimconnector dependent, but do not use nested dictionaries and a value of None should be the same
+            as not present.
         """
         raise vimconnNotImplemented( "Should have implemented this" )
 
@@ -370,8 +374,11 @@
         """
         raise vimconnNotImplemented( "Should have implemented this" )
 
-    def delete_network(self, net_id):
-        """Deletes a tenant network from VIM
+    def delete_network(self, net_id, created_items=None):
+        """
+        Removes a tenant network from VIM and its associated elements
+        :param net_id: VIM identifier of the network, provided by method new_network
+        :param created_items: dictionary with extra items to be deleted. provided by method new_network
         Returns the network identifier or raises an exception upon error or when network is not found
         """
         raise vimconnNotImplemented( "Should have implemented this" )
@@ -533,7 +540,7 @@
         
     def delete_vminstance(self, vm_id, created_items=None):
         """
-        Removes a VM instance from VIM and each associate elements
+        Removes a VM instance from VIM and its associated elements
         :param vm_id: VIM identifier of the VM, provided by method new_vminstance
         :param created_items: dictionary with extra items to be deleted. provided by method new_vminstance and/or method
             action_vminstance