When your LPAR with CA CSM has multiple TCP/IP stacks, establish a TCP/IP stack affinity to a desired stack. Establishing a stack affinity binds all socket communications to that stack.
To establish a stack affinity, select one of the following methods:
§ Add a DD statement SYSTCPD DD to the CA CSM startup JCL (RunTimeMVSHLQPrefix.JCL(MSMTCSRV)) pointing to a
specific TCPIP.DATA data set.
//SYSTCPD DD DSN=TCPIP.SEZAINST(TCPDATA),DISP=SHR
§ Add the environment variable _BPXK_SETIBMOPT_TRANSPORT to the RunTimeMVSHLQPrefix.SAMPLIB(MSMLIB) member
that is associated to the STDENV DD of the CA CSM application server.
§ Add an extra step, AFFINITY, in the CA CSM startup JCL (RunTimeMVSHLQPrefix.JCL(MSMTCSRV)) before the MSMSRV step:
//AFFINITY EXEC PGM=BPXTCAFF,PARM=stackname