DB2 TCP/IP IPNAME field
The DB2 TCP/IP IPNAME field value identifies and associates an IPNAME value with the Db2 distributed data facility (DDF). It identifies transactions for indoubt resolution, correlates trace records, and is the Db2 group RACF PassTicket APPLID. The IPNAME value must be the same for each member in a Db2 data sharing group. When this value is set, it also disables VTAM and SNA communication with Db2.
If the DB2 TCP/IP IPNAME is set, TCP/IP communication is started but not SNA communications, regardless if there is a value for LUNAME. Inbound and outbound communications over TCP/IP are allowed, but Db2 makes no attempt to activate VTAM communications support.
For stand-alone Db2 subsystems the default DB2 TCP/IP IPNAME setting is the SUBSYSTEM NAME (MVSSNAME) field on panel DSNTIPM. For data sharing members, the default DB2 TCP/IP IPNAME setting is the GROUP NAME (GRPNAME) on panel DSNTIPK if a member.
| Acceptable values: | 1–8 alphanumeric characters, beginning with a letter or alphabet extender |
|---|---|
| Default: | See Initial values for the TCP/IP IPNAME field |
| Update: | option 45 on panel DSNTIPB |
| DSNZPxxx: | none |
Initial values for the TCP/IP IPNAME field
The following table shows initial values for the DB2 TCP/IP IPNAME field on DSNTIPR.
| INSTALL TYPE | Data sharing? | IPNAME updateable? | Initial value if DSNTIDXn IPNAME parameter is not NULL | Initial value if DSNTIDXn IPNAME parameter is NULL or not found |
|---|---|---|---|---|
| INSTALL | No | Yes | SUBSYSTEM NAME field on panel DSNTIPM, if it is modified Otherwise, DSNTIDXn IPNAME parameter |
BLANK |
| INSTALL | First member | Yes | GROUP NAME field on panel DSNTIPK | BLANK |
| INSTALL | Subsequent member | No | DSNTIDXn IPNAME parameter (from first data sharing group member) | BLANK |
| INSTALL | Enable | Yes | BLANK | |
| MIGRATE | No | No | BLANK | BLANK |
| MIGRATE | Yes | No | BLANK | BLANK |
| UPDATE | N/A | Yes | DSNTIDXn IPNAME parameter | BLANK |