Configuring the MFC Option

This procedure is used to configure the option for the EAGLE to use Message Flow Control (MFC) to control the traffic in the EAGLE instead of Group Ticket Voucher (TVG). EAGLE Release 46.2 and later require MFC be turned on. This option is configured with chg-stpopts command using these parameters.

• on=mfc - turns the MFC option on. When the MFC option is turned on, Message Flow Control controls the traffic in the EAGLE.

  Note:

  When turning on MFC, the following cards are not supported from EAGLE Release 44.0 or later, except during migration to the B-series cards:

  • DCM card (870-1945-xx)
  • DSM card (870-1984-xx)
  • EDCM card (870-2372-xx) used for SLAN or STC functionality
  • EDCM-A card (870-2508-xx) used for SLAN or STC functionality

Note:

A loss in MSU traffic may occur while running bi-directional traffic at 700 MSUs per second, 272 bytes on an E1-ATM or LIM-ATM card after GTT, while two STC cards are active.

Note:

If another chg-stpopts:on=mfc or chg-stpopts:off=mfc command is issued within 10 seconds, the second command is rejected.

1. Enter the rtrv-stpopts command to display the existing value for the MFC option. The value for the MFC option is shown in the MFC field. This is an example of the possible output.

   
   rlghncxa03w 10-12-17 16:02:05 GMT  EAGLE5 43.0.0
   STP OPTIONS
   ---------------------------
   MFC                     off
   
   Command Completed.
   
   

   The rtrv-stpopts command output contains other fields that are not used by this procedure. If you wish to see all the fields displayed by the rtrv-stpopts command, see the rtrv-stpopts command description in Commands User's Guide.

2. Turn the MFC option on by entering this command.

   chg-stpopts:on=mfc

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

   
   rlghncxa03w 10-12-07 00:22:57 GMT  EAGLE5 43.0.0
   CHG-STPOPTS: MASP A - COMPLTD
   
   

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

   
   rlghncxa03w 10-12-17 16:02:05 GMT  EAGLE5 43.0.0
   STP OPTIONS
   ---------------------------
   MFC                      on
   
   Command Completed.
   
   

   The rtrv-stpopts command output contains other fields that are not used by this procedure. If you wish to see all the fields displayed by the rtrv-stpopts command, see the rtrv-stpopts command description in Commands User's Guide.

4. 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.