Configuring Congestion Action Profile

To configure this feature, use the following configuration:

config 
   congestion-action-profile action-profile action_profile_name  
      n2-overload 
         report-overload { permit-emergency-sessions-and-mobile-terminated-services-only | permit-high-priority-sessions-and-mobile-terminated-services-only | reject-new-sessions | reject-non-emergency-sessions }  
         traffic-load-reduction load_reduction_percentage 
      nas-congestion-enabled 
      end 

NOTES:

  • congestion-action-profile —Enter the congestion action configuration mode.

  • action-profile action_profile_name —Specify the action profile name that is mapped to the system load stage.

  • n2-overload —Configure parameters that must be applied when N2 is overloaded.

  • report-overload —Configure the overload response message that AMF sends to gNB.

    The report-overload includes the following options:

    • permit-emergency-sessions-and-mobile-terminated-services-only —Configure to permit only emergency sessions and mobile-terminated services to access AMF during the overload situation.

    • permit-high-priority-sessions-and-mobile-terminated-services-only —Configure to permit only high priority or emergency sessions and mobile-terminated services that AMF sends to the gNBs.

    • reject-new-sessions —Configure to reject all new connection requests except emergency requests sent to the AMF during the overload situation.

    • reject-non-emergency-sessions —Configure to reject all nonemergency or nonhigh priority Sessions Creation Requests during the overload situation.

  • traffic-load-reduction load_reduction_percentage —Specify the percentage of traffic load to be reduced at gNB. load_reduction_percentage must be an integer in the range 1–99.

  • nas-congestion-enabled —Enable the congestion control feature for NAS. nas-congestion-enabled is disabled by default.