Engineering Rules

This section provides engineering rules or guidelines that must be considered prior to configuring the system for your network deployment.

This appendix describes following engineering rules for MME services:

APN Engineering Rules

The following engineering rules apply to APNs:

  • APNs must be configured within the context used for authentication.
  • A maximum of 1,024 APNs per system can be configured.

Service Engineering Rules

The following engineering rules apply to services configured within the system:

  • A maximum of 256 services (regardless of type) can be configured per system.Large numbers of services greatly increase the complexity of management and may impact overall system performance (i.e. resulting from such things as system handoffs). Therefore, it is recommended that a large number of services only be configured if your application absolutely requires it. Please contact your local service representative for more information.
  • The total number of entries per table and per chassis is limited to 256.
  • Even though service names can be identical to those configured in different contexts on the same system, this is not a good practice. Having services with the same name can lead to confusion, difficulty troubleshooting problems, and make it difficulty understanding outputs of show commands.