Sample CICS Configuration Screens for Use with APPC
The following series of screens show how CICS could be configured for independent Advanced Program-to-Program Communications (APPC) through VTAM. In the first screen, the underlined values correspond to values specified in SNA Server Manager.
OVERTYPE TO MODIFY CICS RELEASE = 0330
CEDA ALter
<U>Sessions : LOCLU1</U>
Group : VER3AAAA
DEscription ==> VERSION 3 LU 6.2 SESSION ENTRY
SESSION IDENTIFIERS
Connection ==> CON1
SESSName ==>
NETnameq ==>
<U>MOdename ==> APPCMODE</U>
SESSION PROPERTIES
Protocol ==> Appc Appc | Lu61
<U>MAximum ==> 250 , 125</U> 0-999
RECEIVEPfx ==>
RECEIVECount ==> 1-999
SENDPfx ==>
SENDCount ==> 1-999
<U>SENDSize ==> 00521</U> 1-30720
<U>RECEIVESize ==> 00521</U> 1-30720
<U>APPLID=CICSLU</U>
PF 1 HELP 2 COM 3 END 6 CRSR 7 SBH 8 SFH 9 MSG 10 SB 11 SF 12 CNCL
The following table shows Host Integration Server parameters and values that correspond to the preceding sample CICS parameters.
| Host Integration Server parameter | Sample value | CICS parameter |
|---|---|---|
| LU Name for local APPC LU | LOCLU1 | Sessions |
| Mode name | APPCMODE | Modename |
| Parallel Session Limit in the mode | 250 | Maximum |
| Partner Min Contention Winner Limit in the mode | 125 | Maximum |
| Max Receive RU Size in the mode | 00521 | SENDSize |
| Max Send RU Size in the mode | 00521 | RECEIVESize |
| LU Name for remote APPC LU | CICSLU | APPLID |
In the sample CICS screen, the parameter called Maximum has two values, 250 and 125, separated by commas. The first value (250) is the parallel session limit. The second value (125) is the host minimum contention winner limit. On Host Integration Server, this corresponds to Partner Min Contention Winner Limit in the mode. In addition, because the host is the contention winner on 125 sessions (out of a total of 250), Host Integration Server should be configured as the contention winner on the remaining 125 sessions. In this case, Host Integration Server mode would have the following values:
Parallel Session Limit 250
Minimum Contention Winner Limit 125
Partner Min Contention Winner Limit 125
Automatic Activation Limit 0
The remaining screens in this section show more information about how CICS could be configured for independent APPC through VTAM.
OVERTYPE TO MODIFY CICS RELEASE = 0330
CEDA ALter
SESSION PROPERTIES
SESSPriority ==> 000 0-255
Transaction :
OPERATOR DEFAULTS
OPERId :
OPERPriority : 000 0-255
OPERRsl : 0 0-24,...
OPERSecurity : 1 1-64,...
PRESET SECURITY
USERId ==>
OPERATIONAL PROPERTIES
Autoconnect ==> Yes No | Yes | All
INservice : No | Yes
Buildchain ==> Yes Yes | No
USERArealen ==> 000 0-255
IOarealen ==> 00000 , 00000 0-32767
RELreq ==> No No | Yes
DIscreq ==> No No | Yes
NEPclass ==> 000 0-255
RECOVERY
RECOVOption ==> Sysdefault Sysdefault | Clearconv
| Releasesess | Uncondrel
| None
RECOVNotify ==> None None | Message | Transaction
APPLID=CICSLU
PF 1 HELP 2 COM 3 END 6 CRSR 7 SBH 8 SFH 9 MSG 10 SB 11 SF 12 CNCL
In the following screen, the underlined value corresponds to the LU Name of the local APPC LU in Host Integration Server.
OVERTYPE TO MODIFY CICS RELEASE = 0330
CEDA ALter
Connection : CON1
Group : VER3AAAA
DEscription ==> VERSION 3 LU 6.2 DEFINITION
CONNECTION IDENTIFIERS
<U>Netname ==> LOCLU1</U>
INDsys ==>
REMOTE ATTRIBUTES
REMOTESystem ==>
REMOTEName ==>
CONNECTION PROPERTIES
ACcessmethod ==> Vtam Vtam | IRc
|INdirect | Xm
Protocol ==> Appc Appc | Lu61
SInglesess ==> No No | Yes
DAtastream ==> User User | 3270 | SCs
| STrfield | Lms
RECordformat ==> U U | Vb
OPERATIONAL PROPERTIES
AUtoconnect ==> Yes No | Yes | All
INService ==> Yes Yes | No
SECURITY
SEcurityname ==>
ATtachsec ==> Verify Local | Identify
| Verify | Persistent
| Mixidpe
BINDPassword ==> PASSWORD SPECIFIED
BINDSecurity ==> No No | Yes
APPLID=CICSLU
PF 1 HELP 2 COM 3 END 6 CRSR 7 SBH 8 SFH 9 MSG 10 SB 11 SF 12 CNCL