(Item 008441) PU/LU name forwarding through DLUR Boundary Function              
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The DLUR BF will usually remove PU and LU names received in ACTPU and           
ACTLU RUs before forwarding the RUs on to the destination resource.             
However, a user can indicate to the DLUS that, for a particular PU and          
its associated LUs, the DLUR should not remove the PU and LU names from         
the ACTPU and ACTLU RUs when forwarding them.                                   
                                                                                
DLURs and DLUSs which support the network name forwarding function will         
set (to 1) a new indicator (byte 9, bit 3) in the DLUR/S Capabilities           
(X'51') control vector during CP-SVR pipe activation.                           
                                                                                
When a DLUS which supports this function is about to send an ACTPU for          
a PU2/2.1 to a DLUR which also supports this function,                          
                                                                                
   - the DLUS will check the PU's system definition to see whether              
     the user requested the Network Name (X'0E') control vector                 
     to be stripped off by the DLUR or to be passed through                     
                                                                                
   - the DLUS will include a PU Capabilities (X'80') ACTPU control              
     vector along with the Network Name control vector in both format 0         
     and format 1 ACTPU RUs                                                     
                                                                                
   - if the Network Name control vector is to be stripped off, the DLUS         
     will reset (to 0) the new network name forwarding request                  
     indicator (byte 2, bit 1) in the PU Capabilities control vector;           
     if the CV is to be passed through, the DLUS will set the indicator.        
                                                                                
When a DLUS which supports this function is about to send an ACTPU for          
a PU2/2.1 to a DLUR which does not support this function,                       
                                                                                
   - for format 0 ACTPU, the DLUS will only include the Network Name            
     control vector                                                             
                                                                                
   - for format 1 ACTPU, the DLUS will include both the PU Capabilities         
     and Network name control vectors, and it will reset the network            
     name forwarding request indicator in the PU Capabilities control           
     vector                                                                     
                                                                                
When a DLUR which supports this function receives an ACTPU from a DLUS          
which also supports this function,                                              
                                                                                
   - it will check the network name forwarding request indicator in             
     the PU Capabilities control vector:                                        
       * if the indicator is off, the DLUR will remove the Network Name         
         and PU Capabilities control vectors from format 0 ACTPUs and           
         remove the Network Name control vector from format 1 ACTPUs            
       * if the indicator is on, the DLUR will leave the control vectors        
         on the ACTPU                                                           
                                                                                
   - the DLUR will save the network name forwarding request indicator           
     value so that it can be used when processing ACTLUs for the LUs            
     associated with the PU:                                                    
       * if the indicator is off, the DLUR will remove the Network Name         
         control vector from the ACTLU                                          
       * if the indicator is on, the DLUR will leave the Network Name           
         control vector on the ACTLU                                            
                                                                                
When a DLUR which supports this function receives an ACTPU from a DLUS          
which does not support this function, the DLUR will perform the same            
processing as a DLUR which does not support this function, i.e.,                
removing the Network Name control vector from ACTPU and ACTLU RUs.