VTAM Definitions

 

*******************************************************************
*
* VTAM PU DEFINITION VIA 3172
*
*******************************************************************
VBUILD TYPE=SWNET,MAXGRP=1,MAXNO=1
PTRMRB PU ADDR=C1,CPNAME=PTRMRB,USSTAB=ISTINCDT,DLOGMOD=LU62CPIC, *
IRETRY=YES,MAXOUT=7,MODETAB=SAPMOD,PASSLIM=7
LTRMRB0 LU LOCADDR=0
LTRMRB1 LU LOCADDR=1
LTRMRB2 LU LOCADDR=2
LTRMRB3 LU LOCADDR=3



*-----------------------------------------------------------------*
* MODETABLE/LOGMODE DEFINITION *
*-----------------------------------------------------------------*

PRINT GEN
SAPMOD MODETAB

*******************************************************************
* LU6.2 RUSIZE 2048 PACING 8 fuer dependent LU6.2 *
*******************************************************************
LU62CPIC MODEENT LOGMODE=LU62CPIC,FMPROF=X'13',TSPROF=X'07', *
PRIPROT=X'B0',SECPROT=X'B0',COMPROT=X'50B1',TYPE=X'00', *
RUSIZES=X'8888',PSERVIC=X'060200000000000000002C00', *
PSNDPAC=X'08',SSNDPAC=X'08',SRCVPAC=X'08'
*******************************************************************


*******************************************************************
* LU6.2 RUSIZE 2048 PACING 8 fuer independent LU6.2 *
*******************************************************************
LU62INDP MODEENT LOGMODE=LU62INDP,FMPROF=X'13',TSPROF=X'07', *
PRIPROT=X'B0',SECPROT=X'B0',COMPROT=X'50B1',TYPE=X'00', *
RUSIZES=X'8888',PSERVIC=X'060200000000000000002C00', *
PSNDPAC=X'08',SSNDPAC=X'08',SRCVPAC=X'08'
*******************************************************************

The RU Size and Pacing parameters have an ongoing effect on the data throughput. Both parameters are set to a ‘medium’ value in the example above. A smaller RU Size may be necessary for WAN connections, but in other cases the best performance may be achieved by using a still larger value.

Whatever values are chosen, it is important that the configurations for both partner systems (host and workstation) contain the same values.