Allowed Affected Destination Field (DESTFLD) Screen Configuration

7 Allowed Affected Destination Field (DESTFLD) Screen Configuration

Chapter 7, Allowed Affected Destination Field (DESTFLD) Screen Configuration, contains the procedures necessary to configure allowed affected destination field screens.

Introduction

The Affected Destination Field screen identifies the point code in the affected destination field, the concerned signaling point code of incoming MTP network management messages from another network that are allowed into the EAGLE. The gray shaded areas in Figure 7-4 shows the fields of the SS7 message that are checked by the Affected Destination Field screening function.

Network management messages contain the entry 0 in the service indicator field of the SIO. This is the last screen in the MTP portion of the gateway screening process. This nsfi for this screen has only one value, stop.

Note:

Screening of the affected destination field can also be performed without configuring an allowed affected destination field screen by specifying thedestfld=yes parameter when configuring a screen set. For more information on the screen setdestfld=yes parameter, see the sectionAutomatic Destination Field Screening.

Gateway Screening Actions

The Gateway Screening process stops with this screen. The nsfi parameter value can only be stop.

If a match is not found, the message is discarded.

If a match is found, the message is processed. If a gateway screening stop action set is specified with the screen, shown by the actname parameter value, the message is processed according to the gateway screening stop actions that are assigned to the gateway screening stop action set.

If the rdct (redirect) gateway screening stop action is specified, the message is diverted from the original destination and sent to another destination with the Database Transport Access feature, specified by global title translation, for further processing.
If the cncf gateway screening stop action is specified, the PIP parameter in the incoming ISUP IAM message is converted to the GN parameter. The GN parameter in the incoming ISUP IAM message is converted to the PIP parameter. The message is then sent to the node specified by the DPC in the routing label in the message. For more information on the Calling Name Conversion Facility feature, see Calling Name Conversion Facility (CNCF) Configuration.
If the tlnp gateway screening stop action is specified, ISUP IAMs that pass gateway screening are processed either by the ISUP NP with EPAP feature (if the ISUP NP with EPAP feature is enabled and turned on) or by the Triggerless LNP feature (if the Triggerless LNP feature is turned on). The ISUP NP with EPAP feature is discussed in more detail in G-Port User's Guide. The Triggerless LNP feature is discussed in more detail in ELAP Administration and LNP Feature Activation Guide.
If the tinp gateway screening stop action is specified, ISUP IAMs that pass gateway screening are intercepted by the Triggerless ISUP based Number Portability (TINP) feature and converted to include the routing number (RN) if the call is to a ported number. The TINP feature is discussed in more detail in G-Port User's Guide.
If the tif, tif2, or tif3 gateway screening stop actions are specified, TIF processing is applied to the message.
If the sccp gateway screening stop action is specified, MTP routed SCCP UDT/XUDT are forwarded to the service modules for further processing.

Allowed Affected Destination Screening Actions

These network management messages are screened by the Allowed Affected Destination Field: TFP, TFA, TFR, TFC, UPU, and SRST (RSP, RSR). Any MSU that is not one of these network management message types, or does not contain a service indicator of 0 in the SIO field and reaches this screen in the gateway screening process automatically passes gateway screening and is allowed into the EAGLE.

Figure 7-1 through Figure 7-3 show the screening actions of the allowed affected destination field screen.

Figure 7-1 Allowed Affected Destination Screening Actions - Sheet 1 of 3

Figure 7-2 Allowed Affected Destination Screening Actions - Sheet 2 of 3

Figure 7-3 Allowed Affected Destination Screening Actions - Sheet 3 of 3

Figure 7-4 Allowed Affected Destination Field Screening Function

Adding an Allowed Affected Destination Field Screen

This procedure is used to add an allowed affected destination field (DESTFLD) screen to the database using the ent-scr-destfld command. The parameters used by the ent-scr-destfld 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 allowed DESTFLD screen data shown in Table 7-1 and based on the example configuration shown in Figure 2-7.

Table 7-1 Example Gateway Screening Allowed DESTFLD Configuration Table

Screening Reference	NI	NC	NCM	NSFI	ACTNAME
fld5	100	100	100	stop	CR

Note:

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

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      STOP    ------
SCR1  241      010      020      STOP    ------

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 7-2 shows the valid combinations of these parameter values.

Table 7-2 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

A range of values can also be specified for an ITU-I or 24-bit ITU-N point code parameter using a combination of asterisks (*) and single values for the point code parameters. Table 7-3 shows the valid combinations of the ITU-I parameter values. Table 7-4 shows the valid combinations of the 24-bit ITU-N parameter values.

Table 7-3 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 7-4 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

Verify that the gateway screening feature is on, by entering the rtrv-feat command.

If the gateway screening feature is on, the GWS field is set to on.

Note:
Thertrv-feat command output contains other fields that are not used by this procedure. If you wish to see all the fields displayed by thertrv-feat command, see thertrv-feat command description inCommands User's Guide.

If the gateway screening feature is on, shown by the entry GWS = on in the rtrv-feat command output, skip step 2, and go to step 3.
Turn the gateway screening feature on by entering this command.
chg-feat:gws=on

Note:
Once the gateway screening feature is turned on with thechg-feat command, it cannot be turned off.
The gateway screening feature must be purchased before you turn this feature on with the chg-feat command. If you are not sure if you have purchased the gateway screening feature, contact your Oracle Sales Representative or Account Representative.

When the chg-feat has successfully completed, this message should appear.
```
rlghncxa03w 06-10-28 11:43:04 GMT EAGLE5 36.0.0
CHG-FEAT: MASP A - COMPLTD
```
Display all allowed DESTFLD screens in the database using the rtrv-scr-destfld command.
The following is an example of the possible output.
```
rlghncxa03w 06-10-25 15:25:30 GMT EAGLE5 36.0.0
SCREEN = ALLOWED DESTFLD
SR    REF  RULES
IEC   YES     2
WRD2  YES     1
WRD4  YES     9
```
If the screening reference names that you wish to add with this procedure are not shown in the rtrv-scr-destfld command output, go to step 4. For this example, the screening reference names are not shown. If these screening reference names are shown in the rtrv-scr-destfld command output, make sure the screening data you wish to enter is not already in the database by entering the rtrv-scr-destfld command with the screening reference name. For example, enter the rtrv-scr-destfld:sr=iec command.

The following is an example of the possible output.
```
rlghncxa03w 06-10-25 15:26:30 GMT  EAGLE5 36.0.0
SCREEN = ALLOWED DESTFLD
SR    NI       NC       NCM      NSFI   NSR/ACT
IEC   240      001      010      STOP    ------
IEC   241      010      *        STOP    COPY
```
If a gateway screening stop action set is to be assigned to the allowed DESTFLD screen being added to the database, go to step 4. Otherwise, go to step 5.
Display the gateway screening stop action sets in the database with the rtrv-gws-actset command.
This is an example of the possible output.
```
rlghncxa03w 06-10-25 15:28:30 GMT EAGLE5 36.0.0
ACT  ACT    ACT  ACT  ACT  ACT  ACT  ACT  ACT  ACT  ACT  ACT
ID   NAME   1    2    3    4    5    6    7    8    9    10
--   ------ ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
1    copy   copy      
2    rdct   rdct      
3    cr     copy rdct 
4    cncf   cncf      
5    cpcncf copy cncf 
6    cncfrd cncf rdct 
7    cpcfrd copy cncf rdct

GWS action set table is (7 of 16) 44% full
```
If the required gateway screening stop action set is not in the database, perform the Configuring Gateway Screening Stop Action Sets procedure to configure the required gateway screening stop action set.

Note:
If the point code being added in this procedure is not an ITU-I or 14-bit ITU-N spare point code, skip this step and to step 6.

Note:
If the point code being added in this procedure is an ITU-I or 14-bit ITU-N spare point code and the screening reference contains ITU-I or 14-bit ITU-N spare point codes, skip this step and go to step 6.
Display the status of the ITU National and International Spare Point Code Support feature by entering the rtrv-ctrl-feat command with the ITU National and International Spare Point Code Support feature part number.
Enter this command.

rtrv-ctrl-feat:partnum=893013601

This is an example of the possible output.
```
rlghncxa03w 06-10-25 15:25:30 GMT EAGLE5 36.0.0
The following features have been permanently enabled:

Feature Name              Partnum   Status Quantity
Spare Point Code Support  893013601 on     ----

The following features have been temporarily enabled:

Feature Name              Partnum   Status Quantity   Trial Period Left
Zero entries found.

The following features have expired temporary keys:

Feature Name              Partnum
Zero entries found.
```
If the ITU National and International Spare Point Code Support feature is enabled, go to step 6.

If the ITU National and International Spare Point Code Support feature is not enabled, perform the “Activating the ITU National and International Spare Point Code Support Feature” procedure in Database Administration - SS7 User's Guide to enable the ITU National and International Spare Point Code Support feature as required. After the feature has been enabled, go to step 6.
Add a new allowed DESTFLD screen to the database using the ent-scr-destfld command.

If a gateway screening stop action is to be assigned to the allowed DESTFLD screen being changed, enter the ent-scr-destfld command with the nsfi=stop parameter and the actname parameter with the name of a gateway screening stop action set shown in the output of the rtrv-gws-actset command executed in step 4.

The following list contains the values for ni, nc, ncm, zone, area, id, npc, msa, ssa, and sp parameters:
- ni – 0 - 255 or an asterisk (*)
- nc – 0 - 255 or an asterisk (*)
- ncm – 0 - 255 or an asterisk (*)
- zone – 0 - 7 or an asterisk (*)
- area – 0 - 255 or an asterisk (*)
- id – 0 - 7 or an asterisk (*)
- npc – 1 - 16383 or an asterisk (*)
- msa – 0 - 255 or an asterisk (*)
- ssa – 0 - 255 or an asterisk (*)
- sp – 0 - 255 or an asterisk (*)
A range of values can be specified for the ni, nc, and ncm parameters. See the Specifying a Range of Values section for more information on how the asterisk and a range of values are used for the ni, nc, and ncm parameters.

To add a spare point code to the allowed DESTFLD screen, the pcst=s parameter must be specified. To add a non-spare point code to the allowed DESTFLD screen, the pcst parameter does not have to be specified. If the pcst parameter is specified for a screen containing an ITU-I or 14-bit ITU-N non-spare point code, the value must be none.

For this example, enter this command.

ent-scr-destfld:sr=fld5:ni=100:nc=100:ncm=100:nsfi=stop :actname=cr

A message similar to the following should appear.
```
rlghncxa03w 06-10-25 15:29:30 GMT  EAGLE5 36.0.0
ENT-SCR-DESTFLD: SCREEN SET AFFECTED - FLD5  1% FULL
ENT-SCR-DESTFLD: MASP A - COMPLTD
```
Verify the changes using the rtrv-scr-destfldcommand with the screening reference name used in step 6. For this example, enter this command.
rtrv-scr-destfld:sr=fld5

The following is an example of the possible output.
```
rlghncxa03w 06-10-25 15:30:30 GMT  EAGLE5 36.0.0
SCREEN = ALLOWED DESTFLD
SR    NI       NC       NCM      NSFI   NSR/ACT
FLD5  100      100      100      STOP    CR
```

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 7-5 Add an Allowed Affected Destination Field Screen - Sheet 1 of 3

Figure 7-6 Add an Allowed Affected Destination Field Screen - Sheet 2 of 3

Figure 7-7 Add an Allowed Affected Destination Field Screen - Sheet 3 of 3

Removing an Allowed Affected Destination Field Screen

This procedure is used to remove an allowed affected destination field (DESTFLD) screen from the database using the dlt-scr-destfld command. The parameters used by the dlt-scr-destfld 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 allowed DESTFLD screen fld5 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 allowed DESTFLD screen can be referenced by one of the following screens.

Allowed SIO
Allowed DPC
Blocked DPC

Verifying the Gateway Screening Configuration

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

rtrv-scr-sio:nsfi=destfld
rtrv-scr-dpc:nsfi=destfld
rtrv-scr-blkdpc:nsfi=destfld

Gateway Screening Configuration Procedures

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

Display the allowed DESTFLD screens in the database using the rtrv-scr-destfld command.
The following is an example of the possible output.
```
rlghncxa03w 06-10-25 15:25:30 GMT EAGLE5 36.0.0
SCREEN = ALLOWED DESTFLD
SR    REF  RULES
FLD5  YES     1
IEC   YES     6
WRD2  YES     1
WRD4  YES     9
```
From the rtrv-scr-destfld output, display the allowed DESTFLD screen you wish to remove using the rtrv-scr-destfld command with the screening reference name. For this example, enter this command.

rtrv-scr-destfld:sr=fld5

The following is an example of the possible output.
```
rlghncxa03w 06-10-25 15:25:30 GMT  EAGLE5 36.0.0
SCREEN = ALLOWED DESTFLD
SR    NI       NC       NCM      NSFI   NSR/ACT
fld5  100      100      100      STOP   cr
```
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 allowed DESTFLD screen from the database using the dlt-scr-destfld command with the screening reference name shown in the rtrv-scr-destfld 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-destfld 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-destfld 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-destfld command. If the pcst parameter is specified, the value must be none.

For this example, enter this command.

dlt-scr-destfld:sr=fld5:ni=100:nc=100:ncm=100

A message similar to the following should appear.
```
rlghncxa03w 06-10-25 15:26:30 GMT  EAGLE5 36.0.0
DLT-SCR-DESTFLD: SCREEN SET AFFECTED - FLD5  0% FULL
DLT-SCR-DESTFLD: MASP A - COMPLTD
```
Verify the changes using the rtrv-scr-destfld command with the screening reference name used in step 3.
For this example, enter this command.

rtrv-scr-destfld:sr=fld5

The following is an example of the possible output.
```
E2573 Cmd Rej: SR or NSR does not reference an existing SR
```
This message shows that the specified screening reference name is not in the database and the action of the dlt-scr-destfld command in step 3 was successful. If the specified screening reference name contained more than one entry when the dlt-scr-destfld command was executed in step 3, the rtrv-scr-destfld:sr= command output would show the remaining entries in the screening reference instead of error message E2573.

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 7-8 Remove an Allowed Affected Destination Field Screen - Sheet 1 of 2

Figure 7-9 Remove an Allowed Affected Destination Field Screen - Sheet 2 of 2

Changing an Allowed Affected Destination Field Screen

This procedure is used to change the attributes of an allowed affected destination field (DESTFLD) screen in the database using the chg-scr-destfld command. The parameters used by the chg-scr-destfld 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 is used to change the point code 100-100-100 for the allowed DESTFLD screen fld5 to 030-030-030 and to redirect the MSU for the DTA feature.

Note:

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

Specifying a Range of Values

A range of values can be specified for the point code parameters ni, nc, or ncm.

For example, screening reference name scr1 contains these entries:

SR    NI       NC       NCM      NSFI    NSR/ACT
SCR1  240      001      010      STOP    ------
SCR1  241      010      020      STOP    ------

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 7-5 shows the valid combinations of these parameter values.

Table 7-5 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

A range of values can also be specified for an ITU-I or 24-bit ITU-N point code parameter using a combination of asterisks (*) and single values for the point code parameters. Table 7-6 shows the valid combinations of the ITU-I parameter values. Table 7-7 shows the valid combinations of the 24-bit ITU-N parameter values.

Table 7-6 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 7-7 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

Display the allowed DESTFLD screens in the database using the rtrv-scr-destfld command.
The following is an example of the possible output.
```
rlghncxa03w 06-10-25 15:25:30 GMT EAGLE5 36.0.0
SCREEN = ALLOWED DESTFLD
SR    REF  RULES
FLD5  YES     1
IEC   YES     6
WRD2  YES     1
WRD4  YES     9
```
From the rtrv-scr-destfld output, display the allowed DESTFLD screen you wish to change using the rtrv-scr-destfld command with the screening reference name. For this example, enter this command.

rtrv-scr-destfld:sr=fld5

The following is an example of the possible output.
```
rlghncxa03w 06-10-25 15:25:30 GMT  EAGLE5 36.0.0
SCREEN = ALLOWED DESTFLD
SR    NI       NC       NCM      NSFI   NSR/ACT
fld5  100      100      100      STOP    cr
```
If a gateway screening stop action set is to be assigned to the allowed DESTFLD screen being added to the database, go to step 2. Otherwise, go to step 3.

Display the gateway screening stop action sets in the database with the rtrv-gws-actset command.

This is an example of the possible output.

rlghncxa03w 06-10-25 15:26:30 GMT EAGLE5 36.0.0
ACT  ACT    ACT  ACT  ACT  ACT  ACT  ACT  ACT  ACT  ACT  ACT
ID   NAME   1    2    3    4    5    6    7    8    9    10
--   ------ ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
1    copy   copy      
2    rdct   rdct      
3    cr     copy rdct 
4    cncf   cncf      
5    cpcncf copy cncf 
6    cncfrd cncf rdct 
7    cpcfrd copy cncf rdct

GWS action set table is (7 of 16) 44% full

If the required gateway screening stop action set is not in the database, perform the Configuring Gateway Screening Stop Action Sets procedure to configure the required gateway screening stop action set.

Display the status of the ITU National and International Spare Point Code Support feature by entering the rtrv-ctrl-feat command with the ITU National and International Spare Point Code Support feature part number.
Note:
If any of these conditions apply to this procedure, skip this step and go to step 4:
- The point code in the screen is not being changed.
- The screen being changed contains either an ANSI or 24-bit ITU-N point code.
- The ITU-I or 14-bit ITU-N non-spare point code in the screen is not being changed to an ITU-I or 14-bit ITU-N spare point code.
- The point code in the screen is an ITU-I or 14-bit ITU-N spare point code or the screening reference contains other screens with ITU-I or 14-bit ITU-N spare point codes.
Enter this command.

rtrv-ctrl-feat:partnum=893013601

This is an example of the possible output.
```
rlghncxa03w 06-10-25 15:25:30 GMT EAGLE5 36.0.0
The following features have been permanently enabled:

Feature Name              Partnum   Status Quantity
Spare Point Code Support  893013601 on     ----

The following features have been temporarily enabled:

Feature Name              Partnum   Status Quantity   Trial Period Left
Zero entries found.

The following features have expired temporary keys:

Feature Name              Partnum
Zero entries found.
```
If the ITU National and International Spare Point Code Support feature is enabled, go to step 4.

If the ITU National and International Spare Point Code Support feature is not enabled, perform the “Activating the ITU National and International Spare Point Code Support Feature” procedure in Database Administration - SS7 User's Guide to enable the ITU National and International Spare Point Code Support feature as required. After the feature has been enabled, go to step 4.
Change the attributes of an allowed DESTFLD screen using the chg-scr-destfld command.
If a gateway screening stop action is to be assigned to the allowed DESTFLD screen being changed, enter the chg-scr-destfld command with the actname parameter with the name of a gateway screening stop action set shown in the output of the rtrv-gws-actset command executed in step 2.

The current values for the ni, nc, ncm, zone, area, id, npc, msa, ssa, and sp parameters must be entered exactly as shown in the rtrv-scr-destfld output in step 1.

The following list contains the values for the nni, nnc, nncm, nzone, narea, nid, nnpc, nmsa, nssa, and nsp parameters:
- nni - 0-255 or an asterisk (*)
- nnc - 0-255 or an asterisk (*)
- nncm - 0-255 or an asterisk (*)
- nzone - 0-7 or an asterisk (*)
- narea - 0-255 or an asterisk (*)
- nid - 0-7 or an asterisk (*)
- nnpc - 1 - 16383 or an asterisk (*)
- nmsa - 0-255 or an asterisk (*)
- nssa - 0-255 or an asterisk (*)
- nsp - 0-255 or an asterisk (*)
chg-scr-destfld:sr=fld5:ni=100:nc=100:ncm=100:nni=030:nnc=030 :nncm=030:actname=rdct

The following messages appear.
```
rlghncxa03w 06-10-25 15:27:30 GMT  EAGLE5 36.0.0
CHG-SCR-DESTFLD: SCREEN SET AFFECTED - FLD5  1% FULL
CHG-SCR-DESTFLD: MASP A - COMPLTD
```
Verify the changes using the rtrv-scr-destfld command with screening reference name used in step 4.
For this example, enter this command.

rtrv-scr-destfld:sr=fld5

The following is an example of the possible output.
```
rlghncxa03w 06-10-25 15:28:30 GMT  EAGLE5 36.0.0
SCREEN = ALLOWED DESTFLD
SR    NI       NC       NCM      NSFI   NSR/ACT
fld5  030      030      030      STOP    rdct
```

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 7-10 Change an Allowed Affected Destination Field Screen - Sheet 1 of 4

Figure 7-11 Change an Allowed Affected Destination Field Screen - Sheet 2 of 4

Figure 7-12 Change an Allowed Affected Destination Field Screen - Sheet 3 of 4

Figure 7-13 Change an Allowed Affected Destination Field Screen - Sheet 4 of 4