Changing the Transaction-Based GTT Load Sharing Options

This procedure is used to change the options for performing Transaction-Based GTT Load Sharing using the chg-sccpopts command and with these parameters:

:tgtt0 – enable or disable Transaction-Based GTT Load Sharing for SCCP Class 0 UDT, UDTS, XUDT, or XUDTS messages. The values for this parameter are:

udt – Transaction-Based GTT Load Sharing is performed for Class 0 UDT or UDTS messages.
xudt – Transaction-Based GTT Load Sharing is performed for Class 0 XUDT or XUDTS messages.
both – Transaction-Based GTT Load Sharing is performed for Class 0 UDT, UDTS. XUDT and XUDTS messages.
none – Transaction-Based GTT Load Sharing is not performed for SCCP Class 0 messages.

:tgtt1 – enable or disable Transaction-Based GTT Load Sharing for SCCP Class 1 UDT, UDTS, XUDT, or XUDTS messages. The values for this parameter are:

udt – Transaction-Based GTT Load Sharing is performed for Class 1 UDT or UDTS messages.
xudt – Transaction-Based GTT Load Sharing is performed for Class 1 XUDT or XUDTS messages.
both – Transaction-Based GTT Load Sharing is performed for Class 1 UDT, UDTS, XUDT and XUDTS messages.
none – Transaction-Based GTT Load Sharing is not performed for SCCP Class 1 messages.

:tgttudtkey – the Transaction Parameter for the incoming UDT or UDTS messages. The values for this parameter are:

mtp – Transaction-Based GTT Load Sharing is performed on the MTP parameter for UDT and UDTS messages.
sccp – Transaction-Based GTT Load Sharing is performed on the SCCP parameter for UDT and UDTS messages.
tcap – Transaction-Based GTT Load Sharing is performed on the TCAP parameter for UDT and UDTS messages.
enhmtp – Transaction-Based GTT Load Sharing is performed using the enhanced MTP algorithm for UDT and UDTS messages.

:tgttxudtkey – the Transaction Parameter for the incoming XUDT or XUDTS messages. The values for this parameter are:

mtp – Transaction-Based GTT Load Sharing is performed on the MTP parameter for XUDT and XUDTS messages.
sccp – Transaction-Based GTT Load Sharing is performed on the SCCP parameter for XUDT and XUDTS messages.
enhmtp – Transaction-Based GTT Load Sharing is performed using the enhanced MTP algorithm for XUDT and XUDTS messages.

The Transaction-Based GTT Load Sharing feature must be enabled to change these parameter values with the chg-sccpopts command. The tggt0, tggt1, tgttudtkey, and tgttxudtkey fields in the output of the rtrv-sccpopts command are shown when the Transaction-Based GTT Load Sharing feature is enabled. If the tggt0, tggt1, tgttudtkey, and tgttxudtkey fields are not shown in the output of the rtrv-sccpopts command, perform the Activating the Transaction-Based GTT Load Sharing Feature procedure to enable the Transaction-Based GTT Load Sharing feature.

When the Transaction-Based GTT Load Sharing feature is enabled, these values for the tggt0, tggt1, tgttudtkey, and tgttxudtkey fields are shown in the rtrv-sccpopts output:

tggt0 – none
tggt1 – none
tgttudtkey – mtp
tgttxudtkey – mtp.

If any parameter is not specified with the chg-sccpopts command, that parameter value will not be changed.

If the value both is specified for the tggt0 or tggt1 parameters, the entry UDT,XUDT is shown in the tggt0 or tggt1 fields of the rtrv-sccpopts output.

For more information on the Transaction-Based GTT Load Sharing feature, refer to the Transaction-Based GTT Load Sharing section.

Display the existing values for the Transaction-Based GTT Load Sharing feature options by entering the rtrv-sccpopts command. This is an example of the possible output.
```
rlghncxa03w 08-09-17 16:02:05 GMT  EAGLE5 39.2.0
SCCP OPTIONS
----------------------------
tgtt0                   NONE
tgtt1                   NONE
tgttudtkey               MTP
tgttxudtkey              MTP
```
Note:
The rtrv-sccpopts command output contains other fields that are not used by this procedure. If you wish to see all the fields displayed by the rtrv-sccpopts command, refer to the rtrv-sccpopts command description in Commands User's Guide.

If the tggt0, tggt1, tgttudtkey and tgttxudtkey fields are not shown in the output of the rtrv-sccpopts command, the Transaction-Based GTT Load Sharing feature is not enabled. For these fields to be shown in the rtrv-sccpopts output, and to change these values, the Transaction-Based GTT Load Sharing feature must be enabled. Perform the Activating the Transaction-Based GTT Load Sharing Feature procedure to enable the Transaction-Based GTT Load Sharing feature.
Change the Transaction-Based GTT Load Sharing feature options by entering the chg-sccpopts command with at least one of the Transaction-Based GTT Load Sharing parameters. For this example, enter this command.
chg-sccpopts:tggt0=udt:tgtt1=both:tgttudtkey=tcap:tgttxudtkey=enhmtp

If any parameter is not specified with the chg-sccpopts command, that parameter value will not be changed.

When the chg-sccpopts command has successfully completed, this message should appear.
```
rlghncxa03w 08-09-07 00:22:57 GMT  EAGLE5 39.2.0
CHG-SCCPOPTS: MASP A - COMPLTD
```
Verify the changes using the rtrv-sccpopts command. This is an example of the possible output.
```
rlghncxa03w 08-09-17 16:02:05 GMT  EAGLE5 39.2.0

SCCP OPTIONS
-------------------------------
tgtt0                       UDT
tgtt1                  UDT,XUDT
tgttudtkey                 TCAP
tgttxudtkey              ENHMTP
```
Note:
The rtrv-sccpopts command output contains other fields that are not used by this procedure. If you wish to see all the fields displayed by the rtrv-sccpopts command, refer to the rtrv-sccpopts command description in Commands User's Guide.

Back up the new changes using the chg-db:action=backup:dest=fixed command. These messages should appear, the active Maintenance and Administration Subsystem Processor (MASP) appears first.

BACKUP (FIXED) : MASP A - Backup starts on active MASP.
BACKUP (FIXED) : MASP A - Backup on active MASP to fixed disk complete.
BACKUP (FIXED) : MASP A - Backup starts on standby MASP.
BACKUP (FIXED) : MASP A - Backup on standby MASP to fixed disk complete.

Figure 2-170 Change the Transaction-Based GTT Load Sharing Options