DYNPU and Connection Network

Technote (FAQ)


Question

What value of DYNPU should I use for EE connection network groups? Dynamic switched PUs must be used for all connection network connections. Dynamic switched PUs or pre-defined switched PUs can be used for non-connection network connections.

Answer

Use DYNPU=NO (or let it default) on the GROUP statement when you want to allow dynamic PUs to be created for only inbound and outbound connection network connections. Here is a sample 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,                                         *
                   VNNAME=NETA.LVRN1, Connection network CP name           *
                   VNTYPE=LOCAL       Connection network type

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

    • Inbound and outbound connection network - the dynamically created PU will be named C1nnnnn
    • Inbound and outbound non-connection network when a matching active switched PU is available
Inbound non-connection network connections when a matching switched PU is not available will be rejected with messages similar to the following:

    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 to allow dynamic PUs to be created for inbound and outbound connection network connections and inbound non-connection network connections. Here is a sample 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,                                         *
                   VNNAME=NETA.LVRN1, Connection network CP name           *
                   VNTYPE=LOCAL       Connection network type

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

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

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Document information


More support for:

z/OS Communications Server
All

Software version:

1.10, 1.11, 1.12, 1.13, 2.1

Operating system(s):

OS/390, z/OS

Reference #:

1198513

Modified date:

2013-01-04

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