DRBLK Back to Index page
 
Prolog 
Control Block Contents 
   DRBLK 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.

 
  DRBLK Control Block Content Top of page
  




 DRBLK DSECT
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Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      DRBLK          NETWORK DIAGNOSE x'2A8' Request Blocks
0000    0 Bitstring    1 DRBFLAG        Processing Flag
          .... ...1      DRBMCAST       X'01' DRBMCAST Indicates a
                                        Multicast Frame
          .... ..1.      DRBBCAST       X'02' DRBBCAST Indicates a
                                        Broadcast Frame
          .... .1..      DRBUCAST       X'04' DRBUCAST Indicates a
                                        Unicast Frame
          .... .111      DRBVFLAG       DRBMCAST+DRBBCAST+DRBUCAST
                                        DRBVFLAG
0001    1 Bitstring    1 DRBKEY         Storage key for Datagram
0002    2 Bitstring    4 *              Reserved for future IBM Use
0006    6 Signed       2 DRBCOUNT       Size of Datagram in bytes
0008    8 Dbl-Word     8 DRBADDR        G:ADR of Datagram (payload)
0010   16 Bitstring    1 DRB$END (0)    The end
      DG4BK Operation Code x'04' Multicast MAC ADR Registration
 
 
  DRBLK Storage Layout Top of page
  
          
*** DRBLK - NETWORK DIAGNOSE x'2A8' Request Blocks
*
*     +------+------+---------------------------+-------------+
*   0 |:FLAG |DRBKEY|///////////////////////////|  DRBCOUNT   |
*     +------+------+---------------------------+-------------+
*   8 |                       DRBADDR                         |
*     +-------------------------------------------------------+
*
*** DRBLK - NETWORK DIAGNOSE x'2A8' Request Blocks
 
 
  DRBLK Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
DRB$END        0010
DRBADDR        0008
DRBBCAST       0000 02
DRBCOUNT       0006
DRBFLAG        0000
DRBKEY         0001
DRBMCAST       0000 01
DRBUCAST       0000 04
DRBVFLAG       0000 07
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:49:07 EDT.
Copyright IBM Corporation, 1990, 2022