Use DYNPU=NO on the GROUP statement when you want dynamic PUs to only be created for inbound and outbound connection network connections. Following is a sample of this type of EE XCA major node:

XCAEE    VBUILD TYPE=XCA
PORTEE   PORT  MEDIUM=HPRIP     Enterprise Extender
GPEE1    GROUP ANSWER=ON,
               AUTOGEN=(5,LNLV1,PULV1), Create lines and PUs           
               CALL=INOUT,                                             
               DIAL=YES,                                               
               DYNVNPFX=C1,       Connection network dynamic PU prefix 
               DYNPU=NO,          No dynamic PUs (except conn network) 
               ISTATUS=ACTIVE,
               TGP=GIGENET,                                         
               VNNAME=NETA.LVRN1, Connection network CP name           
               VNTYPE=LOCAL       Connection network type

With the EE XCA major node shown in the example, the following connections are provided for lines in group GPEE1:

• Inbound and outbound connection network links - the dynamically created PU will be named C1nnnnn
• Inbound and outbound non-connection network links when a matching active switched PU is available

Inbound non-connection network links when a matching switched PU is not available will be rejected with messages similar to the following messages:

IST680I CONNECTION REQUEST DENIED - ID = SSCP1A PU GEN NOT SUPPORTED
IST1394I CPNAME = NETA.SSCP1A        STATION ID = 0200FFF18A16
IST081I LINE NAME = LNLV1004, LINE GROUP = GPEE1, MAJNOD = XCAEE
IST314I END

Use DYNPU=YES on the GROUP statement when you want dynamic PUs to be created for inbound and outbound connection network connections and inbound non-connection network connections. Following is a sample of this type of EE XCA major node:

XCAEE    VBUILD TYPE=XCA
PORTEE   PORT  MEDIUM=HPRIP       Enterprise Extender
GPEE1    GROUP ANSWER=ON,                                                
              AUTOGEN=(5,LNLV1,PULV1), Create lines and PUs              
              CALL=INOUT,                                                
              DIAL=YES,                                                  
              DYNPUPFX=P1,       Non-connection network dyn PU prefix     
              DYNVNPFX=C1,       Connection network dynamic PU prefix    
              DYNPU=YES,         Dynamic PUs allowed (all connections)   
              ISTATUS=ACTIVE,              
              TGP=GIGENET,                                               
              VNNAME=NETA.LVRN1, Connection network CP name              
              VNTYPE=LOCAL       Connection network type

With this EE XCA major node, the following connections are provided for lines in group GPEE1:

• Inbound and outbound connection network links - the dynamically created PU will be named C1nnnnn
• Inbound and outbound non-connection network links when a matching active switched PU is available
• Inbound non-connection network links when a matching switched PU is not available - the dynamically created PU will be named P1nnnnn

While the defaults values are often sufficient, you can customize EE connection network PUs in the following ways:

• By default, dynamic connection network PUs take a name in the format CNVxxxxx, where xxxxx is a unique value that is generated and concatenated to the default CNV prefix to create the eight-character PU name. To specify a different prefix (two characters), use the DYNVNPFX start option or the DYNVNPFX operand on the EE XCA GROUP definition.
• You can create a model PU definition to customize the characteristics of dynamically created PUs. Use the DYNTYPE=VN operand for the model PU definition in the model major node.