Removing a Blocked DPC Screen

This procedure is used to remove a blocked destination point code (DPC) screen from the database using the dlt-scr-blkdpc command. The parameters used by the dlt-scr-blkdpc command are shown in the Gateway Screening Attributes section. The general rules that apply to configuring gateway screening entities are shown in the Gateway Screening Configuration section.

The example in this procedure removes the blocked DPC screen iec with the point code 240-001-010 from the database.

Note:

If you using multiple-part ITU national point codes with gateway screening, see the 14-Bit ITU National Point Code Formats section.

The c-c-c entry cannot be removed from the blocked DPC screen unless all other entries in the blocked DPC screen have been removed. The c-c-c entry cannot be removed from the blocked DPC screen if other screens reference the blocked DPC screen. If the last entry (c-c-c) in the blocked DPC screen is removed, the blocked DPC screen is removed. The blocked DPC screen can be referenced by one of the following screens.

Screen Set
Allowed OPC
Blocked OPC
Allowed SIO
Allowed DPC

Verifying the Gateway Screening Configuration

Enter the following commands to verify that none of these screens reference the blocked DPC screen being removed from the database.

rtrv-scrset:nsfi=blkdpc
rtrv-scr-opc:nsfi=blkdpc
rtrv-scr-blkopc:nsfi=blkdpc
rtrv-scr-sio:nsfi=blkdpc
rtrv-scr-dpc:nsfi=blkdpc

Gateway Screening Configuration Procedures

To change the NSFI of any of these screens, perform one of these procedures.

Display the blocked DPC screens in the database using the rtrv-scr-blkdpc command.

The following is an example of the possible output.

rlghncxa03w 06-10-25 15:25:30 GMT EAGLE5 36.0.0
SCREEN = BLOCKED DPC

SR    REF  RULES
IEC   YES     6
WRD2  YES     1
WRD3  NO      4
WRD4  YES     9

From the rtrv-scr-blkdpc output, display the blocked DPC screen you wish to remove using the rtrv-scr-blkdpc command with the screening reference name. For this example, enter this command.

rtrv-scr-blkdpc:sr=iec

The following is an example of the possible output.

rlghncxa03w 06-10-25 15:25:30 GMT  EAGLE5 36.0.0
SCREEN = BLOCKED DPC
SR    NI       NC       NCM      NSFI    NSR/ACT
IEC   240      001      010      FAIL    ------
IEC   241      010      *        FAIL    ------ 
SR      NPC                      NSFI    NSR/ACT
IEC     00235                    FAIL    ------
SR      ZONE   AREA     ID       NSFI    NSR/ACT
IEC     1      003      4        FAIL    ------
IEC     1      003      5        FAIL    ------
IEC     C      C        C        CGPA    cg01

Enter the commands in the Verifying the Gateway Screening Configuration section to verify that the screen being removed is not referenced by other screens in the database.

If the screen being removed is referenced by other screens, perform the procedures shown in the Gateway Screening Configuration Procedures section to change the NSFI of those screens to reference other screens or change the NSFI of these screens to STOP.
Remove the blocked DPC screen from the database using the dlt-scr-blkdpc command with the screening reference name shown in the rtrv-scr-blkdpc output in step 1 and with the point code parameter values (ni, nc, ncm, or zone, area, id, npc, msa, ssa, or sp) of the screen being removed from the database. The values for these parameters must be entered exactly as shown in the rtrv-scr-blkdpc output.
To remove an entry containing either an ITU-I or a 14-bit ITU-N spare point code, the pcst=s parameter must be specified with the dlt-scr-blkdpc command.

To remove an entry containing either an ITU-I or a 14-bit ITU-N non-spare point code, the pcst parameter does not have to be specified with the dlt-scr-blkdpc command. If the pcst parameter is specified, the value must be none.

The pcst parameter cannot be used with the zone=c or the npc=c parameters.

For this example, enter this command.

dlt-scr-blkdpc:sr=iec:ni=240:nc=001:ncm=010

A message similar to the following should appear.
```
rlghncxa03w 06-10-25 15:26:30 GMT  EAGLE5 36.0.0
DLT-SCR-BLKDPC: SCREEN SET AFFECTED - IEC 25% FULL
DLT-SCR-BLKDPC: MASP A - COMPLTD
```

Verify the changes using the rtrv-scr-blkdpc command with the screening reference name used in step 3.

For this example, enter this command.

rtrv-scr-blkdpc:sr=iec

The following is an example of the possible output.

rlghncxa03w 06-10-25 15:27:30 GMT  EAGLE5 36.0.0
SCREEN = BLOCKED DPC
SR    NI       NC       NCM      NSFI    NSR/ACT
IEC   241      010      *        FAIL    ------ 

SR      NPC                      NSFI    NSR/ACT
IEC     00235                    FAIL    ------

SR      ZONE   AREA     ID       NSFI    NSR/ACT
IEC     1      003      4        FAIL    ------
IEC     1      003      5        FAIL    ------
IEC     C      C        C        CGPA    cg01

If the screen removed in step 3 was the last screen contained in the specified screening reference, the screening reference is removed from the database. The following message is displayed.

E2573 Cmd Rej: SR or NSR does not reference an existing SR

Backup the new changes using the chg-db:action=backup:dest=fixed command.

The following 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 8-4 Removing a Blocked DPC Screen

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