Dynamically defining cross-domain resources

You do not have to define resources owned by VTAMs in other domains. VTAM® can dynamically create the definition statements to represent resources that reside in other domains.

Procedure

To have resources in other domains dynamically defined to VTAM:

Code your host CDRM definition statement with CDRDYN=YES
Code your external CDRM definition statements with CDRSC=OPT

Results

Dynamically defined CDRSCs are deactivated and deleted by VTAM on a periodic basis if they are not in use, based on the setting of the timer specified in the CDRSCTI start option.

In the network depicted in Figure 1, coding CDRDYN=YES allows A01N to dynamically define CDRSCs of cross-domain or cross-network resources. It is meaningful only for the host CDRM statement. Coding CDRSC=OPT on an external CDRM definition authorizes dynamic definition of cross-domain or cross-network resources owned by that CDRM. For example, because A02 has CDRSC=OPT coded, A01 can dynamically define CDRSCs for sessions with LUs through A02.

Example

*  =====> BEGINNING OF DATA SET A01CDRM
***********************************************************************
* A01CDRM - VTAM CROSS-DOMAIN RESOURCE MANAGER MAJOR NODE - ICN A01   *
***********************************************************************
         VBUILD TYPE=CDRM,CONFGDS=CDRMCKP
NETA     NETWORK NETID=NETA       ** NETWORK IDENTIFIER             **
A01N     CDRM  CDRDYN=YES,        ** AUTHORIZE DYNAMIC CDRSC DEF.   ** X
               CDRSC=OPT,         ** AUTHORIZE DYNAMIC CDRSC DEF.   ** X
               ELEMENT=1,         ** HOST ELEMENT ADDRESS           ** X
               ISTATUS=ACTIVE,    ** CDRM INITIAL ACTIVATION STATUS ** X
               RECOVERY=YES,      ** CDRM AUTOMATIC RECOVERY        ** X
               SUBAREA=1,         ** NETWORK UNIQUE SUBAREA ADDRESS ** X
               VPACING=63         ** CDRM REQS BEFORE PACING RESP   **
A02N     CDRM  CDRDYN=YES,                                             X
               CDRSC=OPT,                                              X
               ELEMENT=1,                                              X
               ISTATUS=INACTIVE,                                       X
               RECOVERY=YES,                                           X
               SUBAREA=2,                                              X
               VPACING=63
A17N     CDRM  CDRDYN=YES,                                             X
               CDRSC=OPT,                                              X
               ELEMENT=1,                                              X
               ISTATUS=INACTIVE,                                       X
               RECOVERY=YES,                                           X
               SUBAREA=17,                                             X
               VPACING=63
A81N     CDRM  CDRDYN=YES,                                             X
               CDRSC=OPT,                                              X
               ELEMENT=1,                                              X
               ISTATUS=INACTIVE,                                       X
               RECOVERY=YES,                                           X
               SUBAREA=81,                                             X
               VPACING=63
A500N    CDRM  CDRDYN=YES,                                             X
               CDRSC=OPT,                                              X
               ELEMENT=1,                                              X
               ISTATUS=INACTIVE,                                       X
               RECOVERY=YES,                                           X
               SUBAREA=500,                                            X
               VPACING=63
*****************************************************************
*        NETWORK B  CDRMS                                       *
*****************************************************************
NETB     NETWORK NETID=NETB
B01N     CDRM  CDRDYN=YES,        ** AUTHORIZE DYNAMIC CDRSC DEF.   ** X
               CDRSC=OPT,         ** AUTHORIZE DYNAMIC CDRSC DEF.   ** X
               ISTATUS=INACTIVE   ** CDRM INITIAL ACTIVATION STATUS **
*****************************************************************
* GWPATH ROUTING (ORIG HOST -> ... -> DEST HOST)
* A01 -> A04 ->A03/B03 -> B01
* A01 -> A04 ->A03/B03 -> B31 -> B01
*****************************************************************
         GWPATH ADJNET=NETB,      ** ADJACENT NETWORK IDENTIFIER    ** X
               ADJNETEL=1,        ** ADJACENT NETWORK ELEMENT       ** X
               ADJNETSA=01,       ** ADJACENT NETWORK SUBAREA       ** X
               ELEMENT=1,         ** ELEMENT ADDRESS                ** X
               SUBAREA=3          ** SUBAREA ADDRESS                **
*****************************************************************
* GWPATH ROUTING (ORIG HOST -> ... -> DEST HOST)
* A01 -> A04 ->A03/C31 -> C03/B31  -> B01
*****************************************************************
         GWPATH ADJNET=NETC,                                           X
               ADJNETEL=6,                                             X
               ADJNETSA=03,                                            X
               ELEMENT=1,                                              X
               SUBAREA=3
*  =====> END OF DATA SET A01CDRM