| Oracle® Communications EAGLE Database Administration - GWS User's Guide Release 46.6 E93314 Revision 1 |
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| Oracle® Communications EAGLE Database Administration - GWS User's Guide Release 46.6 E93314 Revision 1 |
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This procedure is used to add a blocked originating point code (OPC) screen to the database using the ent-scr-blkopc command. The parameters used by the ent-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 examples in this procedure are used to add the blocked OPC screen data shown in Table 11-1 and based on the example configurations shown in Figure 2-3, Figure 2-4, and Figure 2-7.
Table 11-1 Example Gateway Screening Blocked OPC Configuration Table
| Screening Reference | ZONE | AREA | ID | NSFI | NSR |
| gws5 | C | C | C | sio | iec |
| gws5 | 4 | 250 | 3 | fail | ---- |
| Screening Reference | NI | NC | NCM | NSFI | NSR |
| fld3 | C | C | C | sio | fld4 |
| fld3 | 020 | 020 | 020 | fail | ---- |
| gws3 | C | C | C | dpc | gws9 |
| gws3 | 001 | 002 | 002 | fail | ---- |
| isp1 | C | C | C | sio | isp1 |
| isp1 | 025 | 025 | 025 | fail | ---- |
Note:
If you using multiple-part ITU national point codes with gateway screening, see the 14-Bit ITU National Point Code Formats section.The blocked OPC screen can reference one of the following screens.
Verifying the Gateway Screening Configuration
Enter the following commands to verify that these screens are in the database.
rtrv-scr-sio:all=yes rtrv-scr-dpc:all=yes rtrv-scr-blkdpc:all=yes rtrv-scr-cgpa:all=yes Gateway Screening Configuration Procedures
If the desired screen is not in the database, perform one of the following procedures to add the desired screen to the database or change an existing screen in the database.
For the first entry for a specific screening reference, the value for the point code must be c, and the NSFI must be either stop, sio, dpc, blkdpc, or cgpa. If the NSFI is stop, the screening of the message will stop at the specified blocked OPC screen. If the NSFI is either sio, dpc, blkdpc, or cgpa, then any message containing a point code that is not listed in the blocked OPC screen with a NSFI equal to fail, will continue to be screened with either the allowed SIO, allowed DPC, blocked DPC, or the allowed CGPA screen.
All subsequent entries for that screening reference must contain a numeric point code value, the NSFI must be equal to fail, and the nsr parameter cannot be specified. Any message that contains an OPC in the blocked OPC screen with the NSFI equal to fail will be rejected from the network and the screening process is stopped.
The pcst parameter, specifying whether or not the ITU-I or 14-bit ITU-N point code is a spare point code, cannot be used with the zone=c or npc=c parameters.
Specifying a Range of Values
A range of values can be specified for the point code parameters ni, nc, or ncm.
If a range of values is specified for any of these parameters, and the value of the other parameters match existing values for the screening reference name, the range of values for the point code parameter cannot include any values for that parameter that are currently provisioned for the screening reference name.
For example, screening reference name scr1 contains these entries:
SR NI NC NCM NSFI NSR/ACT SCR1 240 001 010 FAIL ------ SCR1 241 010 020 FAIL ------
Another entry for screening reference scr1 with the ni value of 240 and the nc value of 001 cannot be specified if the range of values for the ncm parameter includes the value 010.
The ANSI point code parameter values can be specified as a single value, a range of values, or with an asterisk (*). The asterisk specifies all possible values for the ni, nc, and ncm parameters. Table 11-2 shows the valid combinations of these parameter values.
Table 11-2 Valid Value Combinations for ANSI Point Code Parameters
| NI | NC | NCM |
|---|---|---|
| Single Value | Single Value | Single Value |
| Single Value | Single Value | Range of Values |
| Single Value | Single Value | Asterisk |
| Single Value | Range of Values | Asterisk |
| Single Value | Asterisk | Asterisk |
| Range of Values | Asterisk | Asterisk |
| Asterisk | Asterisk | Asterisk |
Table 11-3 Valid Value Combinations for ITU-I Point Code Parameters
| ZONE | AREA | ID |
|---|---|---|
| Single Value | Single Value | Single Value |
| Single Value | Single Value | Asterisk |
| Single Value | Asterisk | Asterisk |
| Asterisk | Asterisk | Asterisk |
Table 11-4 Valid Value Combinations for 24-Bit ITU-N Point Code Parameters
| MSA | SSA | SP |
|---|---|---|
| Single Value | Single Value | Single Value |
| Single Value | Single Value | Asterisk |
| Single Value | Asterisk | Asterisk |
| Asterisk | Asterisk | Asterisk |
Figure 11-3 Adding a Blocked OPC Screen
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