The TCP/IP profiles needed to implement dynamic VIPA (DVIPA) on multiple systems in a sysplex are shown in the following examples. The VIPADEFINE and VIPABACKUP statements allow automatic dynamic VIPA takeover to occur if needed (see Configuring the multiple application-instance scenario), and the VIPARANGE statements allow dynamic VIPAs to be dynamically created by an application or by the MODDVIPA utility (see Configuring the unique application-instance scenario). The VIPADISTRIBUTE statements allow a single VIPA to be shared among several TCP/IP stacks. Including the SOURCEVIPA and TCPSTACKSOURCEVIPA parameters on the IPCONFIG and IPCONFIG6 statements, on each target stack with the same dynamic VIPA specified, enables a single DVIPA address to be used as a sysplex-wide source DVIPA address for outbound TCP connections. The following examples show both IPv4 and IPv6 DVIPAs, and the output is shown in the IPv6-enabled, or long, format.
TCPCS
IPCONFIG SYSPLEXROUTING SOURCEVIPA TCPSTACKSOURCEVIPA 201.2.10.11
DYNAMICXCF 193.9.200.1 255.255.255.240 1
IPCONFIG6 DYNAMICXCF 2001:0DB8::151:0001 INTFID 6:7:8:9
SOURCEVIPAINT SVIPA1 SOURCEVIPA TCPSTACKSOURCEVIPA DVIPA1
VIPADYNAMIC
VIPADEFINE 255.255.255.240 201.2.10.11 201.2.10.12
VIPADEFINE 255.255.255.240 201.2.10.14 201.2.10.15
VIPADEFINE 255.255.255.240 201.2.10.23
VIPADISTRIBUTE SYSPLEXPORTS DISTM SERVERWLM 201.2.10.11
PORT 20 21 DESTIP ALL
VIPADISTRIBUTE 201.2.10.12 PORT 20 21 DESTIP 193.9.200.2
VIPADISTRIBUTE DISTMETHOD ROUNDROBIN 201.2.10.14 DESTIP 193.9.200.2
VIPADISTRIBUTE DISTM WEIGHTEDActive 201.2.10.15 PORT 5000
DESTIP 193.9.200.2 WEIGHT 10
193.9.200.3 WEIGHT 20
VIPADISTRIBUTE TIMEDAFF 30 201.2.10.15 PORT 23 DESTIP ALL
PROCTYPE CP 20 ZAAP 80 ZIIP 0
VIPADISTRIBUTE 201.2.10.23 PORT 4000 DESTIP ALL
VIPABACKUP 100 201.2.10.13
VIPABACKUP 80 201.2.10.21 201.2.10.22
VIPARANGE DEFINE 255.255.255.192 201.2.10.192
VIPADEFINE DVIPA1 2001:0DB8:1::1
VIPADISTRIBUTE SYSPLEXPORTS DISTMETHOD SERVERWLM DVIPA1 DESTIP ALL
VIPADEFINE DVIPA2 2001:0DB8:2::2
VIPADISTRIBUTE TIMEDAFF 45 DISTM ROUNDROBIN DVIPA2 PORT 23 DESTIP ALL
VIPARANGE VRANGE1 2001:0DB8:3::1/100
ENDVIPADYNAMICTCPCS2
IPCONFIG SYSPLEXROUTING SOURCEVIPA TCPSTACKSOURCEVIPA 201.2.10.11
DYNAMICXCF 193.9.200.2 255.255.255.240 1
IPCONFIG6 DYNAMICXCF 2001:0DB8::151:0002
SOURCEVIPA TCPSTACKSOURCEVIPA DVIPA1
VIPADYNAMIC
VIPADEFINE 255.255.255.192 201.2.10.13
VIPABACKUP 100 201.2.10.11 201.2.10.21
VIPABACKUP 75 201.2.10.12 201.2.10.22
VIPARANGE DEFINE 255.255.255.192 201.2.10.192
VIPADEFINE DVIPA3 2001:0DB8:3::3
VIPABACKUP 200 DVIPA2
VIPABACKUP 220 DVIPA1
VIPADISTRIBUTE SYSPLEXPORTS DVIPA1 PORT 23 DESTIP ALL
VIPABACKUP 10 DVIPA4
ENDVIPADYNAMICTCPCS3
IPCONFIG SYSPLEXROUTING SOURCEVIPA TCPSTACKSOURCEVIPA 201.2.10.11
DYNAMICXCF 193.9.200.3 255.255.255.240 1
IPCONFIG6 DYNAMICXCF 2001:0DB8::151:0003
SOURCEVIPA TCPSTACKSOURCEVIPA DVIPA1
VIPADYNAMIC
VIPADEFINE MOVE IMMED 255.255.255.192 201.2.10.21 201.2.10.22
VIPABACKUP 10 201.2.10.11 201.2.10.12 201.2.10.13
VIPARANGE DEFINE 255.255.255.192 201.2.10.192
VIPADEFINE DVIPA4 2001:0DB8:4::4
VIPABACKUP 110 DVIPA2
VIPABACKUP 100 DVIPA1
ENDVIPADYNAMICTCPCS6
IPCONFIG SYSPLEXROUTING SOURCEVIPA TCPSTACKSOURCEVIPA 201.2.10.11
DYNAMICXCF 193.9.200.6 255.255.255.240 1
IPCONFIG6 DYNAMICXCF 2001:0DB8::151:0006
SOURCEVIPA TCPSTACKSOURCEVIPA DVIPA1
TCPCS6 does not have dynamic VIPAs defined so it does not
contain a VIPADYNAMIC definition. It has DYNAMICXCF specified
for IPv4 and IPv6 to enable XCF dynamic support and to allow
TCPCS6 to be a target for dynamic VIPA distribution. //TCPDVP PROC
//*
//*
//TCPDVP EXEC PGM=MODDVIPA ,REGION=0K,TIME=1440, x
// PARM='POSIX(ON) ALL31(ON)/-p TCPCS -c 201.2.10.193'
//SYSPRINT DD SYSOUT=*,DCB=(RECFM=FB,LRECL=132,BLKSIZE=132)
//SYSERR DD SYSOUT=*
//SYSERROR DD SYSOUT=*
//SYSDEBUG DD SYSOUT=*
//SYSUDUMP DD SYSOUT=A
//SYSABEND DD SYSOUT=*
//*
//*Run program here
//*
//TCPDVP EXEC PGM=MODDVIPA ,REGION=0K,TIME=1440, x
// PARM='POSIX(ON) ALL31(ON)/-p TCPCS -d 201.2.10.193' The PARM field can be -c for create, -a for create with affinity, or -d for delete. This example creates DVIPA 201.2.10.193 for the TCP/IP named TCPCS. After intermediate program is completed (and the comment character is removed), the DVIPA is deleted.
V TCPIP,TCPCS,SYSPLEX,DEACTIVATE,DVIPA=201.2.10.23