Removing a Blocked OPC Screen

This procedure is used to remove a blocked originating point code (OPC) screen from the database using the dlt-scr-blkopc command. The parameters used by the dlt-scr-blkopc 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 OPC 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 OPC screen unless all other entries in the blocked OPC screen have been removed. The c-c-c entry cannot be removed from the blocked OPC screen if other screens reference the blocked OPC screen. If the last entry (c-c-c) in the blocked OPC screen is removed, the blocked OPC screen is removed. The blocked OPC screen can be referenced by one of the following screens.

• Screen Set
• Allowed OPC

Verifying the Gateway Screening Configuration

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

• rtrv-scrset:nsfi=blkopc
• rtrv-scr-opc:nsfi=blkopc

Gateway Screening Configuration Procedures

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

• Changing a Screen Set
• Changing an Allowed OPC Screen

1. Display the blocked OPC screens in the database using the rtrv-scr-blkopc 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
   ISP1  YES     2
   WRD2  YES     2
   WRD3  NO      4
   WRD4  YES     9
   

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

   rtrv-scr-blkopc: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 OPC
   SR    NI       NC       NCM      NSFI    NSR/ACT
   IEC   240      001      010      FAIL    ------
   IEC   241      010      *        FAIL    ------
   SR      ZONE   AREA     ID       NSFI    NSR/ACT
   IEC     1      003      4        FAIL    ------
   IEC     1      003      5        FAIL    ------
   SR    NI       NC       NCM      NSFI    NSR/ACT
   IEC   C        C        C        CGPA    cg01
   SR      NPC                      NSFI    NSR
   IEC     00235                    FAIL    ------
   

2. 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.

3. Remove the blocked OPC screen from the database using the dlt-scr-blkopc command with the screening reference name shown in the rtrv-scr-blkopc output in step 1 and with the point code parameter values (ni, nc, ncm, or zone, area, id, or npc, msa, ssa, sp) of the screen being removed from the database.

   The values for these parameters must be entered exactly as shown in the rtrv-scr-blkopc 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-blkopc 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-blkopc 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-blkopc: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-BLKOPC: SCREEN SET AFFECTED - IEC   2% FULL
   DLT-SCR-BLKOPC: MASP A - COMPLTD
   

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

   For this example, enter this command.

   rtrv-scr-blkopc: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 OPC
   SR    NI       NC       NCM      NSFI    NSR/ACT
   IEC   241      010      *        FAIL    ------
   SR      ZONE   AREA     ID       NSFI    NSR/ACT
   IEC     1      003      4        FAIL    ------
   IEC     1      003      5        FAIL    ------
   SR    NI       NC       NCM      NSFI    NSR/ACT
   IEC   C        C        C        CGPA    cg01
   SR      NPC                      NSFI    NSR
   IEC     00235                    FAIL    ------
   

   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
   

5. 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 11-4 Removing a Blocked OPC Screen