Activating the Enhanced Far-End Loopback Detection Feature

This procedure is used to enable and turn on the Enhanced Far-End Loopback Detection feature using the feature's part number and a feature access key.

The feature access key for the Enhanced Far-End Loopback Detection feature is based on the features part number and the serial number of the EAGLE, making the feature access key site-specific.

The enable-ctrl-feat command enables the feature by inputting the features access key and the features part number with these parameters:

:fak – The feature access key provided by Oracle.

:partnum – The Oracle-issued part number of the Enhanced Far-End Loopback Detection feature, 893017601.

Once this feature is enabled, it is permanently enabled. This feature cannot be enabled with a temporary feature access key.

The enable-ctrl-feat command requires a valid serial number for the EAGLE to be configured in the database, and that this serial number is locked. This can be verified with the rtrv-serial-num command. The EAGLE is shipped with a serial number in the database, but the serial number is not locked. The serial number can be changed, if necessary, and locked once the EAGLE is on-site, by using the ent-serial-num command. The ent-serial-num command uses these parameters.

:serial – The serial number assigned to the EAGLE. The serial number is not case sensitive.

:lock – Specifies whether or not the serial number is locked. This parameter has only one value, yes, which locks the serial number. Once the serial number is locked, it cannot be changed.

Note:

To enter and lock the EAGLE’s serial number, the ent-serial-num command must be entered twice, once to add the correct serial number to the database with the serial parameter, then again with the serial and the lock=yes parameters to lock the serial number. You should verify that the serial number in the database is correct before locking the serial number. The serial number can be found on a label affixed to the control shelf (shelf 1100).

The chg-ctrl-feat command uses these parameters:

:partnum – The Oracle-issued part number of the Circular Route Auto-Recovery feature, 893018101.

:status=on – used to turn the Enhanced Far-End Loopback Detection feature on.

The status of the Enhanced Far-End Loopback Detection feature is shown with the rtrv-ctrl-feat command.

Once the Enhanced Far-End Loopback Detection feature has been turned on, it can be turned off. For more information on turning off the Enhanced Far-End Loopback Detection feature, go to the Turning Off the Enhanced Far-End Loopback Detection Feature procedure.

Once the Enhanced Far-End Loopback Detection feature has been turned on, it significantly decreases the time required to take a link out of service. Whenever a trigger event occurs that indicates that Far-End Loopback may have occurred, the EAGLE will send an SLTM within 250 milliseconds after the trigger event has occurred. Normal processing of this SLTM will take the link out of service if the same SLTM is received at the OPC. The Enhanced Far-End Loopback feature will fail the link as quickly as possible. This rapid failure will prevent the EAGLE from marking DPCs as CRD-prohibited.

Display the controlled features in the database by entering the rtrv-ctrl-feat command. This is an example of the possible output.
```
rlghncxa03w 07-03-28 11:43:04 GMT EAGLE5 35.6.0
The following features have been permanently enabled:

Feature Name              Partnum    Status  Quantity
SCCP Conversion           893012001  on      ----
EIR                       893012301  on      ----
GSM Map Screening (GMS)   893013201  on      ----
HC-MIM SLK Capacity       893012707  on      64


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 Enhanced Far-End Loopback Detection feature is enabled, the entry Enhanced Far-End Loopback is shown in the permanently enabled section of the rtrv-ctrl-feat output. If the status of the Enhanced Far-End Loopback Detection feature is on, no further action can be performed.

If the Enhanced Far-End Loopback Detection feature is enabled but not turned on, skips steps 2 through 6 and go to step 7.

If the Enhanced Far-End Loopback Detection feature is not enabled, go to step 2.

Note:
If the rtrv-ctrl-feat output in step 1 shows any controlled features, skip steps 2 through 5, and go to step 6. If the rtrv-ctrl-feat output shows only the HC-MIM SLK Capacity feature with a quantity of 64, steps 2 through 5 must be performed.
Display the serial number in the database with the rtrv-serial-num command.
This is an example of the possible output.
```
rlghncxa03w 07-05-28 21:15:37 GMT EAGLE5 37.0.0
System serial number = nt00001231

System serial number is not locked.

rlghncxa03w 07-10-28 21:15:37 GMT EAGLE5 37.0.0
Command Completed
```
Note:
If the serial number is correct and locked, skip steps 4, 5, and 6, and go to step 7. If the serial number is correct but not locked, skip steps 4 and 5, and go to step 6. If the serial number is not correct, but is locked, the Circular Route Auto-Recovery feature cannot be enabled and the remainder of this procedure cannot be performed. Contact the Customer Care Center to get an incorrect and locked serial number changed. Refer to My Oracle Support (MOS) for the contact information. The serial number can be found on a label affixed to the control shelf (shelf 1100).
Enter the correct serial number into the database using the ent-serial-num command with the serial parameter.
For this example, enter this command.

ent-serial-num:serial=<EAGLE’s correct serial number>

When this command has successfully completed, the following message should appear.
```
rlghncxa03w 07-05-28 21:15:37 GMT EAGLE5 37.0.0
ENT-SERIAL-NUM:  MASP A - COMPLTD
```
Verify that the serial number entered into step 3 was entered correctly using the rtrv-serial-num command.
This is an example of the possible output.
```
rlghncxa03w 07-05-28 21:15:37 GMT EAGLE5 37.0.0
System serial number = nt00001231

System serial number is not locked.

rlghncxa03w 07-05-28 21:15:37 GMT EAGLE5 37.0.0
Command Completed
```
If the serial number was not entered correctly, repeat steps 3 and 4 and re-enter the correct serial number.
Lock the serial number in the database by entering the ent-serial-num command with the serial number shown in step 2, if the serial number shown in step 2 is correct, or with the serial number shown in step 4, if the serial number was changed in step 3, and with the lock=yes parameter.
For this example, enter this command.

ent-serial-num:serial=<EAGLE’s serial number>:lock=yes

When this command has successfully completed, the following message should appear.
```
rlghncxa03w 07-05-28 21:15:37 GMT EAGLE5 37.0.0
ENT-SERIAL-NUM:  MASP A - COMPLTD
```
Enable the Enhanced Far-End Loopback Detection feature by entering the enable-ctrl-feat command. For this example, enter this command.
enable-ctrl-feat:partnum=893018103:fak= <Enhanced Far-End Loopback Detection feature access key>

Note:
The values for the feature access key (the fak parameter) are provided by Oracle. If you do not have the feature access key for the Enhanced Far-End Loopback Detection feature, contact your Oracle Sales Representative or Account Representative.

When the enable-ctrl-feat command has successfully completed, this message should appear.
```
rlghncxa03w 07-05-28 21:15:37 GMT EAGLE5 37.0.0
ENABLE-CTRL-FEAT: MASP B - COMPLTD
```
Turn the Enhanced Far-End Loopback Detection feature on by entering the chg-ctrl-feat command with the part number used in step 6 and the status=on parameter.
For this example, enter this command.

chg-ctrl-feat:partnum=893018101:status=on

When this command has successfully completed, the following message should appear.
```
rlghncxa03w 07-03-28 21:15:37 GMT EAGLE5 35.6.0
CHG-CTRL-FEAT: MASP A - COMPLTD
```

Verify the changes by entering this command.

rtrv-ctrl-feat:partnum=893018101

The following is an example of the possible output.

rlghncxa03w 07-05-28 21:15:37 GMT EAGLE5 37.0.0
The following features have been permanently enabled:

Feature Name              Partnum    Status  Quantity
Enhanced Far-End Loopback 893018101  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.

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 3-47 Activating the Enhanced Far-End Loopback Detection Feature

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