Changing a Mapped SS7 Message Translation Type

This procedure is used to change a mapped SS7 message translation type in the database using the chg-ttmap command.

The chg-ttmap command uses these parameters.

:lsn – the name of the linkset.

:io – is translation type mapping to be performed on SS7 messages received in the linkset (incoming linkset) or on SS7 messages sent on the linkset (outgoing linkset).

:ett – the translation type contained in the SS7 message before that translation type is mapped.

:mtt – the translation type that the value of the ett parameter is mapped to.

Only the mapped translation type (mtt) can be changed with this procedure. To change the lsn, io, or ett values, the mapped translation type entry has to be removed from the database using the Removing a Mapped SS7 Message Translation Type procedure, then re-entered with the new lsn, io, or ett values using the Adding a Mapped SS7 Message Translation Type procedure.

The examples in this procedure are used to change the mapped translation type 250, being mapped for translation type 001 for incoming messages on linkset lsn01 to mapped translation type 255.

1. Display the mapped translation types in the database using the rtrv-ttmap command. This is an example of the possible output.

   rlghncxa03w 07-05-25 09:57:31 GMT  EAGLE5 37.0.0
   LSN       IO  ETT  MTT
   lsn01     I   001  250
   nc001     I   047  032
   nc001     I   128  055
   nc001     I   238  128
   nc001     I   254  016
   nc001     O   016  254
   nc001     O   128  238

2. Change the mapped translation type in the database using the chg-ttmap command. For this example, enter this command.

   chg-ttmap:lsn=lsn01:io=i:ett=001:mtt=255

   When this command has successfully completed, this message should appear.

   rlghncxa03w 07-05-25 09:57:41 GMT  EAGLE5 37.0.0
   CHG-TTMAP: MASP A - COMPLTD
   
   TTMAP table for lsn01 is (1 of 64) 1% full

3. Verify the changes using the rtrv-ttmap command. This is an example of the possible output.

   rlghncxa03w 07-05-25 09:57:51 GMT  EAGLE5 37.0.0
   LSN       IO  ETT  MTT
   lsn01     I   001  255
   nc001     I   047  032
   nc001     I   128  055
   nc001     I   238  128
   nc001     I   254  016
   nc001     O   016  254
   nc001     O   128  238

4. Backup 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 2-43 Change a Mapped SS7 Message Translation Type