DG4BK | Back to Index page

| Prolog Control Block Contents DG4BK DSECT Storage Layout Cross Reference (Contains links to field and bit definitions) |
Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

DG4BK Control Block Content | Top of page

     DG4BK DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      DG4BK          NETWORK DIAGNOSE x'2A8' Request Blocks
                 Code defined in DG4FUNC
    0000    0 Bitstring    1 DG4FUNC        Function to Perform
              .... ...1      DG4ASSIG       1 DG4ASSIG Assign Multicast MAC
                                            Address
              .... ..1.      DG4REMOV       2 DG4REMOV Remove Multicast MAC
                                            Address
    0001    1 Bitstring    7 *              Reserved for future IBM Use
    0008    8 Bitstring    6 DG4MAC         MAC Address for Interface
    000E   14 Bitstring    2 *              Reserved for future IBM Use
    0010   16 Dbl-Word     8 * (2)          Reserved for Future IBM Use
    0020   32 Bitstring    1 DG4$END (0)    The end
          DG5BK Operation Code x'05' Network Device Options

DG4BK Storage Layout | Top of page

    *** DG4BK - NETWORK DIAGNOSE x'2A8' Request Blocks
    *
    *     +------+------------------------------------------------+
    *   0 |:FUNC |////////////////////////////////////////////////|
    *     +------+----------------------------------+-------------+
    *   8 |                 DG4MAC                  |/////////////|
    *     +-----------------------------------------+-------------+
    *  10 |///////////////////////////////////////////////////////|
    *     |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    *
    *** DG4BK - NETWORK DIAGNOSE x'2A8' Request Blocks

DG4BK Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    DG4$END        0020
    DG4ASSIG       0000 01
    DG4FUNC        0000
    DG4MAC         0008
    DG4REMOV       0000 02

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:27:42 EDT.
Copyright IBM Corporation, 1990, 2020