DDN Throttling for Release 10 Compliant MME

DDN throttling is enabled through Call Control Profile by providing the ARP value. For example, if the ARP value provided is 10, then all bearers with ARP value between 10-15 are treated as low priority bearers and are given throttling treatment. Throttling would not be enabled if ARP value is not provided through S-GW service configuration. Also, ARP IE in DDN message towards MME would not be included unless DDN throttling is configured using S-GW service. If MME is Release 10 compliant, the user need not configure the duration value as the DDN Acknowledgment would have the throttling IE. Otherwise, throttling can be enabled at S-GW by setting the duration value. If it’s set to 0, S-GW would apply throttling recurringly. To enable throttling only for a given duration of time (in non Rel-10 compliant MME), user needs to set the value in hours and minutes. From the time of configuration, throttling would be applied at S-GW until the timer duration expires. For example, if user sets hours = 10, minutes = 30, S-GW would apply throttling for next 10 hours 30 minutes.

On re-configuration, all the parameters will be set with new values, but they will be applicable only from the next recalibration except from polling time and time factor.

Use the following configuration to configure DDN throttling for release 10 MME:

configure 
   context context_name 
      sgw-service service_name 
         [ no ] ddn throttle arp-watermark arp_value 
         end 

NOTES:

  • arp-value: Valid ARP value between 1 and 15. All the packets which have ARP greater than the configured values will be throttled as per the throttling factor.