SNA entries

This section contains the SNA Logmode entry and NCP SDLC Group definition. It contains the following subsections:

Logmode entry

The following statement defines mode table SYBTABV to SNA:


 LOGMODE ENTRY:
 ---------------
 SYBTABV  MODETAB
          EJECT
          TITLE 'M6P1024V'
 *---------------------------------------------------------------*
 * LU 6.2, PARALLEL SESSIONS, RU_SIZE(1024), SYNCH_LEVEL(CONFIRM), 
 * SECURITY(VERIFY) 
 *---------------------------------------------------------------*
 M6P1024 MODEENT LOGMODE=M6P1024,FMPROF=X’13’,TSPROF=X’07’,               *
   PRIPROT=X’B0’,SECPROT=X’B0’,COMPROT=X’78A5’,              *
   RUSIZES=X’8787’,TYPE=X’00’,              *
   PSNDPAC=X’05’,SRCVPAC=X’05’,SSNDPAC=X’05’,              *
   PSERVIC=X’060200000000000000102F00’              *
   EJECT
   MODEEND
   END

The value for RUSIZES matches that used for SENDSize and RECEIVESize. See “Session definition”.

NCP SDLC group definition

Use the following sample as a model. Change it as appropriate to your site, noting the requirements listed after the sample:


 ******* NCP: REMOTE SNA LU 6.2 SDLC NON-SWITCHED *******
 
 **************************************************************** 
 SDLC NON-SWITCHED LINES GROUP 
 ****************************************************************
 
 * 
 NSWGRP GROUP CLOCKNG=DIRECT,      SCANNER PROVIDES CLOCKING          +
  DIAL=NO,     NO SWITCHED LINES IN THIS GROUP         +
  DISCNT=NO,     (V) SNASNA         +
  ISTATUS=ACTIVE,     INITIAL STATUS ACTIVE         +
  LNCTL=SDLC,     SDLC LINE CONTROL         +
  NEWSYNC=NO,     DO NOT SUPPLY NEW SYNC SIGNAL         +
  PAUSE=(0,0),     0 SEC BETWEEN SERVICE CYCLES         +
  PU=YES,     (V) SNA         +
  REPLYTO=0.3,     .3 SEC REPLY TIMEOUT         +
  RETRIES=(5,0,2),     5 RETRIES PAUSE 0 SEC. FOR 3 TIMES         +
  SERVLIM=8,     NUMBER OF SCANS OF THE SOT         +
  SPEED=19200,     LINE SPEED         +
  TYPE=NCP     NCP MODE ONLY LINE GROUP 
 *-----------------------------------------------------------------------
 * LIC 01 PORT 01; 
 *-----------------------------------------------------------------------
 L01P01 LINE   ADDRESS=01,     LINE ADDRESS ON 3745         +
  ISTATUS=ACTIVE,     INITIAL STATUS         +
  MAXPU=1,              +
  MAXDATA=1024,              +
  MODETAB=SYBTABV,              +
  NRZI=NO 
 *
 S01P01 SERVICE ORDER=(NSWPU1),ORDER IN WHICH               +
    MAXLIST=1     DEVICES ARE SERVICED 
 *
 NSWPU1 PU ADDR=01,DLOGMOD=M6P1024V,SSCPFM=FSS,USSTAB=ISTINCDT,               +
    XID=YES,PUTYPE=2 
 NSWLU101 LU LOCADDR=0,RESSCB=128,PACING=5,LOGAPPL=CICSSYB
 *-----------------------------------------------------------------------

Requirements include the following:

The MAXDATA value should match the RUSIZES defined on the chosen DLOGMOD.
To define an independent LU to NCP, refer to appropriate IBM documentation for NCP resource definition. Requirements are:
- On the PU definition, set XID=YES.
- Define an independent LU (ILU) as LOCADDR=0. You can define more than one ILU per PU.
- The RESSCB parameter defines the number of Boundary Session Control Blocks (BSBs) reserved for this ILU. You need one BSB for each session in which the ILU participates.

Also consider that the LOGAPPL parameter is used for error recovery in case the PU becomes inactive. If you specify LOGAPPL, then when the PU is reactivated, SNA reestablishes the SNASVCMG service session between this LU and the application defined to LOGAPPL.