This section describes how to configure eMPS profile. Use the following commands to configure eMPS profile, which is used to identify/mark a bearer/session as an eMPS bearer/session

configure 
   [ no ] emps-profile emps_profile_name -noconfirm  
      [ no ] earp { [string value] }    
      [ no ] dscp-marking { dscp-value }  
      end 

Notes:

• emps-profile emps_profile_name : Configures eMPS profile for defining attributes of an eMPS session. The emps_profile_name is a string of size from 1 to 63.

• -noconfirm : Creates a new eMPS profile without prompting for confirmation.

• earp: Configures a maximum of 8 eARP priority level (PL) values so that sessions with configured eARP priority values can be marked as eMPS sessions. Maximum of 8 eARP values can be configured under an eMPS profile.

• dscp-marking: Specifies the DSCP value to be applied to eMPS sessions. The dscp_value is a hexadecimal number between 0x0 and 0x3F.

Note

For supplemental information related to eMPS profile configuration (configuring the eMPS ARPs, which are used to identify a bearer/session as an eMPS bearer/session), and eMPS statistics, refer to the Expanded Prioritization for VoLTE/Emergency Calls chapter in the P-GW Administration Guide or the SAEGW Administration Guide.

This section describes how to associate an eMPS profile with P-GW and S-GW services.

configure 
   context context_name 
      pgw-service service_name 
         associate emps-profile emps_profile_name 
         end 

configure 
   context context_name 
      Sgw-service service_name 
         associate emps-profile emps_profile_name 
         end 

Notes:

• no : Disables a emps-profile association with P-GW or S-GW service.

• associate emps-profile emps_profile_name: Associates an eMPS profile with either P-GW or S-GW service.

This section describes how to enable Gx prioritization levels for eMPS sessions

configure 
   context context_name 
      [ no ]ims-auth-service service_name 
         [ no ] policy control  
             [ no ] diameter origin endpoint  endpoint_name  priority-select 
             [ no ] diameter session-prioritization 
         end 

Notes:

• priority-select : Enables Wireless Priority Services (WPS) for the selected IMS authorization service.

  Note	The priority-select keyword is mandatory for WPS feature.

• [ no ] diameter session-prioritization : Enables or disables Gx signalling prioritization for eMPS sessions:

  • By default, the diameter session-prioritization CLI command is disabled and Gx messages does not get prioritized based on WPS value.

  • If previously configured, use the no diameter session-prioritization CLI command to set the default behavior

  • The diameter session-prioritization CLI takes effect when Gx, along with eMPS profile, is enabled in the configuration.

  • The diameter session-prioritization configuration attaches DRMP-0 AVP to Diameter Messages going over the High Priority channel. DRA/PCRF takes appropriate actions based on DRMP-0, incase fallback from High Priority to Low Priority channel takes place on P-GW to DRA or DRA to PCRF Gx links.

    Note	Diameter session-prioritization is an existing CLI and it is not mandatory for configuring WPS feature.

This section describes how to differentiate between low and priority peers. Priority Endpoint configuration under policy-control ensures WPS feature is only applicable to IMS-auth-service under policy control area. It is applicable for Gx interface.

configure 
   context context_name 
      [ no] diameter endpoint pgw-gx   
         peer PGW-Gx-green-1  realm_address ipv4 address | ipv6 address portport_number 
         peer PGW-Gx-wps-1  realm_address ipv4 address | ipv6 address port port_number priority-select origin-host-suffix value dscp value 
      end 

NOTES:

• priority-select : Defines peer as high priority wps peer. It is optional to configure to both parameters. Following conditions apply during peer configuration:

  • If priority-select is not configured, peer is not treated as high priority wps peer.

  • origin-host-suffix: If priority-select is set for a peer, it is treated as wps peer. If Origin-host-suffix is configured for wps peer, configured string is appended to Origin Host ID otherwise, default -wps string is appended to Origin Host ID (for example, pgw-gx-wps).

  • dscp : If DSCP is not configured for high priority peer, endpoint level DSCP is filled in IP packets towards DRA/PCRF. Otherwise, configured DSCP is filled in IP packet.

Use this CLI command to view the output field details of Rule Installation Failure statistics, number of prioritized DRMP messages, WPS and Non-WPS session statistics.

This section provides information on the bulk statistics for the Dynamic Transport Selection based on Transaction or Origin-Host feature on P-GW