CICS server sessions definition

For each EXCI connection definition, you create a sessions definition.

Sessions definition - screen 1

VIEW GROUP(MYEXCI) SESSIONS(CTGS)
 OBJECT CHARACTERISTICS                                    CICS RELEASE = 0690
  CEDA  View Sessions( CTGS     )
   Sessions       : CTGS
   Group          : MYEXCI
   DEscription    : Sample EXCI Specific sessions definition
  SESSION IDENTIFIERS
   Connection     : EXCS
   SESSName       :
   NETnameq       :
   MOdename       :
  SESSION PROPERTIES
   Protocol       : Exci               Appc | Lu61 | Exci
   MAximum        : 000 , 000          0-999
   RECEIVEPfx     : G
   RECEIVECount   : 100                1-999
   SENDPfx        :
   SENDCount      :                    1-999
   SENDSize       : 04096              1-30720
+  RECEIVESize    : 04096              1-30720

                                                     SYSID=SYSA APPLID=IY2GTG99

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Sessions definition - screen 2

VIEW GROUP(MYEXCI) SESSIONS(CTGS)
 OBJECT CHARACTERISTICS                                    CICS RELEASE = 0690
  CEDA  View Sessions( CTGS     )
   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    : No                 No | Yes | All
   INservice      : Yes                No | Yes
   Buildchain     : Yes                Yes | No
   USERArealen    : 000                0-255
   IOarealen      : 04096 , 04096      0-32767
   RELreq         : No                 No | Yes
   DIscreq        : No                 No | Yes

                                                     SYSID=SYSA APPLID=IY2GTG99

PF 1 HELP 2 COM 3 END             6 CRSR 7 SBH 8 SFH 9 MSG 10 SB 11 SF 12 CNCL

Sessions definition - screen 3

VIEW GROUP(MYEXCI) SESSIONS(CTGS)
 OBJECT CHARACTERISTICS                                    CICS RELEASE = 0690
  CEDA  View Sessions( CTGS     )
   NEPclass       : 000                0-255
  RECOVERY 
   RECOVOption    : Sysdefault         Sysdefault | Clearconv | Releasesess
                                       | Uncondrel | None  
   RECOVNotify    : None               None | Message | Transaction
  DEFINITION SIGNATURE
   DEFinetime     : 04/15/14 15:49:10
   CHANGETime     : 04/15/14 15:53:13
   CHANGEUsrid    : CICSUSER
   CHANGEAGEnt    : CSDApi             CSDApi | CSDBatch
   CHANGEAGRel    : 0690







                                                     SYSID=SYSA APPLID=IY2GTG99

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The relevant parameters (shown in bold in the figures) are:

Connection: This sessions definition is associated with the CTGS connection.
Protocol: Specify EXCI.
RECEIVEPfx: This is a one or two character prefix for the receive session names. CICS® creates the remainder of the four character names from the alphanumeric characters A through Z, and 1 through 9. These two or three character identifiers begin with the letters AAA, and continue in ascending sequence until the number of session entries reaches the limit set by the RECEIVECount value (in our example JGAA, JGAB, JGAC, and so on). The default receive prefix is the < symbol.
RECEIVECount: This defines the number of sessions that can receive before sending. Because all EXCI sessions are receive sessions, this defines the number of pipes that can be used simultaneously. Because the EXCI imposes a maximum of LOGONLIM pipes for each EXCI address space, set RECEIVECount to a value larger than LOGONLIM.
SENDCount: Leave blank. Because EXCI sessions can only receive, there are no send sessions.
USERId: This defines the preset user identifier to be used for link security checking. It provides an additional security check for each transaction in addition to the flowed user ID. If you do not specify a preset user ID for link security, CICS uses the flowed user ID.