PDN Gateway Configuration
Configuring the System as a Standalone eGTP P-GW
Configuring the System as a Standalone PMIP P-GW in an LTE-SAE Network
Configuring the System as a Standalone PMIP P-GW Supporting an eHRPD Network
Configuring Optional Features on the P-GW

PDN Gateway Configuration

This chapter provides configuration information for the PDN Gateway (P-GW).

Important

Information about all commands in this chapter can be found in the Command Line Interface Reference.

Because each wireless network is unique, the system is designed with a variety of parameters allowing it to perform in various wireless network environments. In this chapter, only the minimum set of parameters are provided to make the system operational. Optional configuration commands specific to the P-GW product are located in the Command Line Interface Reference.

The following procedures are located in this chapter:

Configuring the System as a Standalone eGTP P-GW

This section provides a high-level series of steps and the associated configuration file examples for configuring the system to perform as an eGTP P-GW in a test environment. For a complete configuration file example, refer to the Sample Configuration Files appendix. Information provided in this section includes the following:

Information Required
How This Configuration Works
eGTP P-GW Configuration

Information Required

The following sections describe the minimum amount of information required to configure and make the P-GW operational on the network. To make the process more efficient, it is recommended that this information be available prior to configuring the system.

There are additional configuration parameters that are not described in this section. These parameters deal mostly with fine-tuning the operation of the P-GW in the network. Information on these parameters can be found in the appropriate sections of the Command Line Interface Reference.

Required Local Context Configuration Information

The following table lists the information that is required to configure the local context on an P-GW.

Table 1. Required Information for Local Context Configuration

Required Information

Description

Management Interface Configuration

Interface name

An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface will be recognized by the system.

Multiple names are needed if multiple interfaces will be configured.

IP address and subnet

IPv4 addresses assigned to the interface.

Multiple addresses and subnets are needed if multiple interfaces will be configured.

Physical port number

The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17.

A single physical port can facilitate multiple interfaces.

Gateway IP address

Used when configuring static IP routes from the management interface(s) to a specific network.

Security administrator name

The name or names of the security administrator with full rights to the system.

Security administrator password

Open or encrypted passwords can be used.

Remote access type(s)

The type of remote access protocol that will be used to access the system, such as telnet, SSH, and/or FTP.

Important

In release 20.0 and higher Trusted StarOS builds, the telnet and FTP options are no longer available.

Required P-GW Context Configuration Information

The following table lists the information that is required to configure the P-GW context on a P-GW.

Table 2. Required Information for P-GW Context Configuration
Required Information	Description
P-GW context name	An identification string from 1 to 79 characters (alpha and/or numeric) by which the P-GW context will be recognized by the system.
Accounting policy name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the accounting policy will be recognized by the system. The accounting policy is used to set parameters for the Rf (off-line charging) interface.
S5/S8 Interface Configuration (To/from S-GW)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface will be recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 or IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
GTP-U Service Configuration
GTP-U service name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the GTP-U service will be recognized by the system.
IP address	S5/S8 interface IPv4 address.
P-GW Service Configuration
P-GW service name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the P-GW service will be recognized by the system. Multiple names are needed if multiple P-GW services will be used.
PLMN ID	MCC number: The mobile country code (MCC) portion of the PLMN's identifier (an integer value between 100 and 999). MNC number: The mobile network code (MNC) portion of the PLMN's identifier (a 2 or 3 digit integer value between 00 and 999).
eGTP Service Configuration
eGTP Service Name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the eGTP service will be recognized by the system.

Required PDN Context Configuration Information

The following table lists the information that is required to configure the PDN context on a P-GW.

Table 3. Required Information for PDN Context Configuration
Required Information	Description
PDN context name	An identification string from 1 to 79 characters (alpha and/or numeric) by which the PDN context is recognized by the system.
IP Address Pool Configuration
IPv4 address pool name and range	An identification string between 1 and 31 characters (alpha and/or numeric) by which the IPv4 pool is recognized by the system. Multiple names are needed if multiple pools will be configured. A range of IPv4 addresses defined by a starting address and an ending address.
IPv6 address pool name and range	An identification string between 1 and 31 characters (alpha and/or numeric) by which the IPv6 pool is recognized by the system. Multiple names are needed if multiple pools will be configured. A range of IPv6 addresses defined by a starting address and an ending address.
Access Control List Configuration
IPv4 access list name	An identification string between 1 and 47 characters (alpha and/or numeric) by which the IPv4 access list is recognized by the system. Multiple names are needed if multiple lists will be configured.
IPv6 access list name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the IPv6 access list is recognized by the system. Multiple names are needed if multiple lists will be configured.
Deny/permit type	The types are: any by host IP address by IP packets by source ICMP packets by source IP address masking by TCP/UDP packets
Readdress or redirect type	The types are readdress server redirect context redirect css delivery-sequence redirect css service redirect nexthop
SGi Interface Configuration (To/from IPv4 PDN)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
SGi Interface Configuration (To/from IPv6 PDN)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.

Required AAA Context Configuration Information

The following table lists the information that is required to configure the AAA context on a P-GW.

Table 4. Required Information for AAA Context Configuration
Required Information	Description
Gx Interface Configuration (to PCRF)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 or IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
Gx Diameter Endpoint Configuration
End point name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the Gx Diameter endpoint configuration is recognized by the system.
Origin realm name	An identification string between 1 through 127 characters. The realm is the Diameter identity. The originator's realm is present in all Diameter messages and is typically the company or service name.
Origin host name	An identification string from 1 to 255 characters (alpha and/or numeric) by which the Gx origin host is recognized by the system.
Origin host address	The IP address of the Gx interface.
Peer name	The Gx endpoint name described above.
Peer realm name	The Gx origin realm name described above.
Peer address and port number	The IP address and port number of the PCRF.
Route-entry peer	The Gx endpoint name described above.
Gy Interface Configuration (to on-line charging server)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 or IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
Gy Diameter Endpoint Configuration
End point name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the Gy Diameter endpoint configuration is recognized by the system.
Origin realm name	An identification string between 1 through 127 characters. The realm is the Diameter identity. The originator's realm is present in all Diameter messages and is typically the company or service name.
Origin host name	An identification string from 1 to 255 characters (alpha and/or numeric) by which the Gy origin host is recognized by the system.
Origin host address	The IP address of the Gy interface.
Peer name	The Gy endpoint name described above.
Peer realm name	The Gy origin realm name described above.
Peer address and port number	The IP address and port number of the OCS.
Route-entry peer	The Gy endpoint name described above.
Gz Interface Configuration (to off-line charging server)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
Rf Interface Configuration (to off-line charging server)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 or IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
Rf Diameter Endpoint Configuration
End point name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the Rf Diameter endpoint configuration is recognized by the system.
Origin realm name	An identification string between 1 through 127 characters. The realm is the Diameter identity. The originator's realm is present in all Diameter messages and is typically the company or service name.
Origin host name	An identification string from 1 to 255 characters (alpha and/or numeric) by which the Rf origin host is recognized by the system.
Origin host address	The IP address of the Rf interface.
Peer name	The Rf endpoint name described above.
Peer realm name	The Rf origin realm name described above.
Peer address and port number	The IP address and port number of the OFCS.
Route-entry peer	The Rf endpoint name described above.

How This Configuration Works

The following figure and supporting text describe how this configuration with a single source and destination context is used by the system to process a subscriber call originating from the GTP LTE network.

Figure 1. GTP P-GW Configuration Elements

The S-GW establishes the S5/S8 connection by sending a Create Session Request message to the P-GW including an Access Point name (APN).
The P-GW service determines which context to use to provide AAA functionality for the session. This process is described in the How the System Selects Contexts section located in the Understanding the System Operation and Configuration chapter of the System Administration Guide.
The P-GW uses the configured Gx Diameter endpoint to establish the IP-CAN session.
The P-GW sends a CC-Request (CCR) message to the PCRF to indicate the establishment of the IP-CAN session and the PCRF acknowledges with a CC-Answer (CCA).
The P-GW uses the APN configuration to select the PDN context. IP addresses are assigned from the IP pool configured in the selected PDN context.
The P-GW responds to the S-GW with a Create Session Response message including the assigned address and additional information.
The S5/S8 data plane tunnel is established and the P-GW can forward and receive packets to/from the PDN.

eGTP P-GW Configuration

To configure the system to perform as a standalone eGTP P-GW:

Procedure

Step 1	Set system configuration parameters such as activating PSCs by applying the example configurations found in the System Administration Guide.
Step 2	Set initial configuration parameters such as creating contexts and services by applying the example configurations found in the Initial Configuration.
Step 3	Configure the system to perform as an eGTP P-GW and set basic P-GW parameters such as eGTP interfaces and IP routes by applying the example configurations presented in the P-GW Service Configuration.
Step 4	Configure the PDN context by applying the example configuration in the P-GW PDN Context Configuration.
Step 5	Enable and configure the active charging service for Gx interface support by applying the example configuration in the Active Charging Service Configuration.
Step 6	Create a AAA context and configure parameters for policy by applying the example configuration in the Policy Configuration.
Step 7	Verify and save the configuration by following the steps found in Verifying and Saving the Configuration.

Initial Configuration

Procedure

Step 1	Set local system management parameters by applying the example configuration in Modifying the Local Context.
Step 2	Create the context where the eGTP service will reside by applying the example configuration in Creating and Configuring an eGTP P-GW Context.
Step 3	Create and configure APNs in the P-GW context by applying the example configuration in Creating and Configuring APNs in the P-GW Context.
Step 4	Create and configure AAA server groups in the P-GW context by applying the example configuration in Creating and Configuring AAA Groups in the P-GW Context.
Step 5	Create an eGTP service within the newly created context by applying the example configuration in Creating and Configuring an eGTP Service.
Step 6	Create and configure a GTP-U service within the P-GW context by applying the example configuration in Creating and Configuring a GTP-U Service.
Step 7	Create a context through which the interface to the PDN will reside by applying the example configuration in Creating a P-GW PDN Context.

Modifying the Local Context

Use the following example to set the default subscriber and configure remote access capability in the local context:

configure  
   context local  
      interface  <lcl_cntxt_intrfc_name> 
         ip address  <ip_address> <ip_mask> 
            exit  
         server ftpd  
            exit  
         server telnetd  
            exit  
         subscriber default  
            exit  
         administrator  <name> encrypted password  <password> ftp  
         ip route  <ip_addr/ip_mask> <next_hop_addr> <lcl_cntxt_intrfc_name> 
         exit  
   port ethernet  <slot#/port#> 
      no shutdown  
      bind interface  <lcl_cntxt_intrfc_name> local  
      end

Creating and Configuring an eGTP P-GW Context

Use the following example to create a P-GW context, create an S5/S8 IPv4 interface (for data traffic to/from the S-GW), and bind the S5/S8 interface to a configured Ethernet port:

configure  
   gtpp single-source  
   context  <pgw_context_name> -noconfirm  
      interface  <s5s8_interface_name> 
         ip address  <ipv4_address> 
         exit  
      gtpp group default  
         gtpp charging-agent address  <gz_ipv4_address> 
         gtpp echo-interval  <seconds> 
         gtpp attribute diagnostics  
         gtpp attribute local-record-sequence-number  
         gtpp attribute node-id-suffix  <string> 
         gtpp dictionary  <name> 
         gtpp server  <ipv4_address> priority  <num> 
         gtpp server  <ipv4_address> priority <num> node-alive enable  
         exit  
      policy accounting  <rf_policy_name> -noconfirm  
         accounting-level  {level_type} 
         accounting-event-trigger interim-timeout action stop-star t 
         operator-string  <string> 
         cc profile  <index> interval  <seconds> 
         exit  
      exit  
   subscriber default  
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <s5s8_interface_name> <pgw_context_name> 
      end

Notes:

gtpp single-source is enabled to allow the system to generate requests to the accounting server using a single UDP port (by way of a AAA proxy function) rather than each AAA manager generating requests on unique UDP ports.
The S5/S8 (P-GW to S-GW) interface IP address can also be specified as an IPv6 address using the ipv6 address command.
Set the accounting policy for the Rf (off-line charging) interface. The accounting level types are: flow, PDN, PDN-QCI, QCI, and subscriber. Refer to the Accounting Profile Configuration Mode Commands chapter in the Command Line Interface Reference for more information on this command.
Set the GTPP group setting for Gz accounting.

Creating and Configuring APNs in the P-GW Context

Use the following configuration to create an APN:

configure  
   context  <pgw_context_name> -noconfirm  
      apn  <name> 
         accounting-mode radius-diameter  
         associate accounting-policy  <rf_policy_name> 
         ims-auth-service  <gx_ims_service_name> 
         aaa group  <rf-radius_group_name> 
         dns primary  <ipv4_address> 
         dns secondary  <ipv4_address> 
         ip access-group  <name> in  
         ip access-group  <name> out  
         mediation-device context-name  <pgw_context_name> 
         ip context-name  <pdn_context_name> 
         ipv6 access-group  <name> in 
         ipv6 access-group  <name> out 
         active-charging rulebase  <name> 
         end

Notes:

The IMS Authorization Service is created and configured in the AAA context.
Multiple APNs can be configured to support different domain names.
The associate accounting-policy command is used to associate a pre-configured accounting policy with this APN. Accounting policies are configured in the P-GW context. An example is located in the Creating and Configuring an eGTP P-GW Context.

Use the following configuration to create an APN that includes Gz interface parameters:

configure  
   context  <pgw_context_name> -noconfirm  
      apn  <name> 
         bearer-control-mode mixed  
         selection-mode sent-by-ms  
         accounting-mode gtpp  
         gtpp group default accounting-context  <aaa_context_name> 
         ims-auth-service  <gx_ims_service_name> 
         ip access-group  <name> in  
         ip access-group  <name> out  
         ip context-name  <pdn_context_name> 
         active-charging rulebase  <gz_rulebase_name> 
         end

Notes:

The IMS Authorization Service is created and configured in the AAA context.
Multiple APNs can be configured to support different domain names.
The accounting-mode GTPP and GTPP group commands configure this APN for Gz accounting.

Creating and Configuring AAA Groups in the P-GW Context

Use the following example to create and configure AAA groups supporting RADIUS and Rf accounting:

configure  
   context  <pgw_context_name> -noconfirm 
      aaa group  <rf-radius_group_name> 
         radius attribute nas-identifier  <id> 
         radius accounting interim interval  <seconds> 
         radius dictionary  <name> 
         radius mediation-device accounting server  <address> key  <key> 
         diameter authentication dictionary  <name> 
         diameter accounting dictionary  <name> 
         diameter accounting endpoint  <rf_cfg_name> 
         diameter accounting server  <rf_cfg_name> priority  <num> 
         exit  
      aaa group default  
         radius attribute nas-ip-address address  <ipv4_address> 
         radius accounting interim interval  <seconds> 
         diameter authentication dictionary  <name> 
         diameter accounting dictionary  <name> 
         diameter accounting endpoint  <rf_cfg_name> 
         diameter accounting server  <rf_cfg_name> priority  <num> 
         end

Creating and Configuring an eGTP Service

Use the following configuration example to create the eGTP service:

configure  
   context  <pgw_context_name> 
      egtp-service  <egtp_service_name> -noconfirm  
         interface-type interface-pgw-ingress  
         validation mode default  
         associate gtpu-service  <gtpu_service_name> 
         gtpc bind address  <s5s8_interface_address> 
         end

Notes:

Co-locating a P-GW service on the same ASR 5500 requires that the gtpc bind address command uses the same IP address the P-GW service is bound to.

Creating and Configuring a GTP-U Service

Use the following configuration example to create the GTP-U service:

configure  
   context  <pgw_context_name> 
      gtpu-service  <gtpu_service_name> -noconfirm  
         bind ipv4-address  <s5s8_interface_address> 
         end

Notes:

The bind command can also be specified as an IPv6 address using the ipv6-address command.

Creating a P-GW PDN Context

Use the following example to create a P-GW PDN context and Ethernet interface, and bind the interface to a configured Ethernet port.

configure  
   context  <pdn_context_name> -noconfirm 
      interface  <sgi_ipv4_interface_name> 
         ip address  <ipv4_address> 
      interface  <sgi_ipv6_interface_name> 
         ipv6 address  <address> 
         end

P-GW Service Configuration

Procedure

Step 1	Configure the P-GW service by applying the example configuration in the Configuring the P-GW Service.
Step 2	Specify an IP route to the eGTP Serving Gateway by applying the example configuration in the Configuring a Static IP Route.

Configuring the P-GW Service

Use the following example to configure the P-GW service:

configure  
   context  <pgw_context_name> 
      pgw-service  <pgw_service_name> -noconfirm  
            plmn id mcc  <id> mnc  <id> 
            associate egtp-service  <egtp_service_name> 
            associate qci-qos-mapping  <name> 
            end

Notes:

QCI-QoS mapping configurations are created in the AAA context. Refer to the Configuring QCI-QoS Mapping for more information.
Co-locating a P-GW service on the same ASR 5500 requires the configuration of the associate pgw-service name command within the P-GW service.

Configuring a Static IP Route

Use the following example to configure an IP Route for control and user plane data communication with an eGTP Serving Gateway:

configure  
   context  <pgw_context_name> 
      ip route  <sgw_ip_addr/mask> <sgw_next_hop_addr> <pgw_intrfc_name> 
      end

P-GW PDN Context Configuration

Use the following example to configure an IP Pool and APN, and bind a port to the interface in the PDN context:

configure  
   context  <pdn_context_name> -noconfirm  
      interface  <sgi_ipv4_interface_name> 
         ip address  <ipv4_address> 
         exit  
      interface  <sgi_ipv6_interface_name> 
         ip address  <ipv6_address> 
         exit  
      ip pool  <name> range  <start_address end_address> public  <priority> 
      ipv6 pool  <name> range  <start_address end_address> public  <priority> 
      subscriber default  
         exit  
      ip access-list  <name> 
         redirect css service  <name> any 
         permit any  
         exit  
      ipv6 access-list  <name> 
         redirect css service  <name> any 
         permit any  
         exit  
         aaa group default  
         exit  
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <sgi_ipv4_interface_name> <pdn_context_name> 
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <sgi_ipv6_interface_name> <pdn_context_name> 
      end

Active Charging Service Configuration

Use the following example to enable and configure active charging:

configure  
   require active-charging optimized-mode  
   active-charging service < name>  
      ruledef < name>  
         < rule>  
            .  
            .  
         < rule>  
         exit  
      ruledef default  
         ip any-match = TRUE  
         exit  
      ruledef  icmp-pkts 
         icmp any-match = TRUE  
         exit  
      ruledef  qci3 
          icmp any-match = TRUE  
         exit  
      ruledef  static 
         icmp any-match = TRUE  
         exit  
      charging-action < name>  
         < action>  
            .  
            .  
         < action>  
         exit  
      charging-action  icmp 
         billing-action egcdr  
         exit  
      charging-action  qci3 
         content-id < id>  
         billing-action rf  
         qos-class-identifier < id>  
         allocation-retention-priority < priority>  
         tft packet-filter  qci3 
         exit  
      charging-action  static 
         service-identifier < id>  
         billing-action rf  
         qos-class-identifier < id>  
         allocation-retention-priority < priority>  
         tft packet-filter  qci3 
         exit  
      packet-filter < packet_filter_name>   
         ip remote-address = { < ipv4/ipv6_address> | < ipv4/ipv6_address/mask> }  
         ip remote-port { = < port_number> | range < start_port_number> to < end_port_number> }  
         exit  
      rulebase default  
                  exit  
      rulebase < name>  
         < rule_base>  
            .  
            .  
         < rule_base>  
         exit  
      rulebase < gx_rulebase_name>  
         dynamic-rule order first-if-tied  
         egcdr tariff minute < minute> hour < hour>(optional)  
         billing-records egcdr  
         action priority  5 dynamic-only ruledef  qci3 charging-action  qci3 
         action priority  100 ruledef  static charging-action  static 
         action priority  500 ruledef default charging-action  icmp 
         action priority  570 ruledef  icmp-pkts charging-action  icmp 
         egcdr threshold interval < interval>  
         egcdr threshold volume total < bytes>  
         end

Notes:

A rulebase is a collection of rule definitions and associated charging actions.
As depicted above, multiple rule definitions, charging actions, and rule bases can be configured to support a variety of charging scenarios.
Charging actions define the action to take when a rule definition is matched.
Routing and/or charging rule definitions can be created/configured. The maximum number of routing rule definitions that can be created is 256. The maximum number of charging rule definitions is 2048.
The billing-action egcdr command in the charging-action qc13 , icmp , and static examples is required for Gz accounting.
The Gz rulebase example supports the Gz interface for offline charging. The billing-records egcdr command is required for Gz accounting. All other commands are optional.

Important

If uplink packet is coming on the dedicated bearer, only rules installed on the dedicated bearer are matched. Static rules are not matched and packets failing to match the same will be dropped.

Policy Configuration

Procedure

Step 1	Configure the policy and accounting interfaces by applying the example configuration in the Creating and Configuring the AAA Context.
Step 2	Create and configure QCI to QoS mapping by applying the example configuration in the Configuring QCI-QoS Mapping.

Creating and Configuring the AAA Context

Use the following example to create and configure a AAA context including diameter support and policy control, and bind Ethernet ports to interfaces supporting traffic between this context and a PCRF, an OCS, and an OFCS:

configure  
   context  <aaa_context_name> -noconfirm  
      interface  <gx_interface_name> 
         ipv6 address  <address> 
         exit  
      interface  <gy_interface_name> 
         ipv6 address  <address> 
         exit  
      interface  <gz_interface_name> 
         ip address  <ipv4_address> 
         exit  
      interface  <rf_interface_name> 
         ip address  <ipv4_address> 
         exit  
      subscriber default  
         exit  
      ims-auth-service  <gx_ims_service_name> 
         p-cscf discovery table  <#> algorithm round-robin  
         p-cscf table  <#> row-precedence  <#> ipv6-address  <pcrf_ipv6_adr> 
         policy-control  
            diameter origin endpoint  <gx_cfg_name> 
            diameter dictionary  <name> 
            diameter host-select table  <#> algorithm round-robin 
            diameter host-select row-precedence  <#> table  <#> host  <gx_cfg_name> 
            exit  
         exit  
      diameter endpoint  <gx_cfg_name> 
         origin realm  <realm_name> 
         origin host  <name> address  <aaa_ctx_ipv6_address> 
         peer  <gx_cfg_name> realm  <name> address  <pcrf_ipv4_or_ipv6_addr> 
         route-entry peer  <gx_cfg_name> 
         exit  
      diameter endpoint  <gy_cfg_name> 
         origin realm  <realm_name> 
         origin host  <name> address  <gy_ipv6_address> 
         connection retry-timeout  <seconds> 
         peer  <gy_cfg_name> realm <name> address  <ocs_ipv4_or_ipv6_addr> 
         route-entry peer  <gy_cfg_name> 
         exit  
      diameter endpoint  <rf_cfg_name> 
         use-proxy  
         origin realm  <realm_name> 
         origin host  <name> address  <rf_ipv4_address> 
         peer  <rf_cfg_name> realm  <name> address  <ofcs_ipv4_or_ipv6_addr> 
         route-entry peer  <rf_cfg_name> 
         exit  
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <gx_interface_name> <aaa_context_name> 
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <gy_interface_name> <aaa_context_name> 
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <gz_interface_name> <aaa_context_name> 
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <rf_interface_name> <aaa_context_name> 
      end

Notes:

The p-cscf table command under ims-auth-service can also specify an IPv4 address to the PCRF.
The Gx interface IP address can also be specified as an IPv4 address using the ip address command.
The Gy interface IP address can also be specified as an IPv4 address using the ip address command.
The Rf interface IP address can also be specified as an IPv6 address using the ipv6 address command.

Configuring QCI-QoS Mapping

Use the following example to create and map QCI values to enforceable QoS parameters:

configure  
   qci-qos-mapping < name>  
      qci 1 user-datagram dscp-marking < hex>  
      qci 3 user-datagram dscp-marking < hex>  
      qci 9 user-datagram dscp-marking < hex>  
      end

Notes:

The P-GW does not support non-standard QCI values unless a valid license key is installed.

QCI values 1 through 9 are standard values defined in 3GPP TS 23.203; the P-GW supports these standard values.

From 3GPP Release 8 onwards, operator-specific/non-standard QCIs can be supported and carriers can define QCI 128- 254.
The above configuration only shows one keyword example. Refer to the QCI - QOS Mapping Configuration Mode Commands chapter in the Command Line Interface Reference for more information on the qci command and other supported keywords.

Verifying and Saving the Configuration

Save your configuration to flash memory, an external memory device, and/or a network location using the Exec mode command save configuration . For additional information on how to verify and save configuration files, refer to the System Administration Guide and the Command Line Interface Reference.

DHCP Service Configuration

The system can be configured to use the Dynamic Host Control Protocol (DHCP) to assign IP addresses for PDP contexts. IP address assignment using DHCP is done using the following method, as configured within an APN:

DHCP-proxy: The system acts as a proxy for client (MS) and initiates the DHCP Discovery Request on behalf of client (MS). Once it receives an allocated IP address from DHCP server in response to DHCP Discovery Request, it assigns the received IP address to the MS. This allocated address must be matched with the an address configured in an IP address pool on the system. This complete procedure is not visible to MS.

As the number of addresses in memory decreases, the system solicits additional addresses from the DHCP server. If the number of addresses stored in memory rises above the configured limit, they are released back to the DHCP server.

There are parameters that must first be configured that specify the DHCP servers to communicate with and how the IP address are handled. These parameters are configured as part of a DHCP service.

Important

This section provides the minimum instruction set for configuring a DHCP service on system for DHCP-based IP allocation. For more information on commands that configure additional DHCP server parameters and working of these commands, refer to the DHCP Service Configuration Mode Commands chapter of Command Line Interface Reference.

These instructions assume that you have already configured the system level configuration as described in System Administration Guide and P-GW service as described in eGTP P-GW Configuration section of this chapter.

To configure the DHCP service:

Procedure

Step 1	Create the DHCP service in system context and bind it by applying the example configuration in the DHCP Service Creation.
Step 2	Configure the DHCP servers and minimum and maximum allowable lease times that are accepted in responses from DHCP servers by applying the example configuration in the DHCP Server Parameter Configuration.
Step 3	Verify your DHCP Service configuration by following the steps in the DHCPv6 Service Configuration Verification.
Step 4	Save your configuration as described in the Verifying and Saving Your Configuration section.

DHCP Service Creation

Use the following example to create the DHCP service to support DHCP-based address assignment:

configure  
   context  <dest_ctxt_name> 
      dhcp-service  <dhcp_svc_name> 
         bind address  <ip_address> [nexthop-forwarding-address  <nexthop_ip_address> [ mpls-label input  <in_mpls_label_value> output  <out_mpls_label_value1> [ out_mpls_label_value2]]]  
         end

Notes:

To ensure proper operation, DHCP functionality should be configured within a destination context.
Optional keyword nexthop-forwarding-address <nexthop_ip_address > [mpls-label input <in_mpls_label_value > output <out_mpls_label_value1 > [ out_mpls_label_value2 ]] applies DHCP over MPLS traffic.

DHCP Server Parameter Configuration

Use the following example to configure the DHCP server parameters to support DHCP-based address assignment:

configure  
   context  <dest_ctxt_name> 
      dhcp-service  <dhcp_svc_name> 
         dhcp server  <ip_address> [priority  <priority> 
         dhcp server selection-algorithm  {first-server | round-robin}  
         lease-duration min  <minimum_dur> max  <max_dur> 
         dhcp deadtime  <max_time> 
         dhcp detect-dead-server consecutive-failures  <max_number> 
         max-retransmissions  <max_number> 
         retransmission-timeout  <dur_sec> 
         end

Notes:

Multiple DHCP services can be configured. Each service can have multiple DHCP servers configured by entering dhcp server command multiple times. A maximum of 225 DHCP services can be configured with maximum of 8 DHCP servers configurations per DHCP service.
The dhcp detect-dead-server command and max-retransmissions command work in conjunction with each other.
The retransmission-timeout command works in conjunction with max-retransmissions command.

DHCP Service Configuration Verification

Procedure

Step 1

Verify that your DHCP servers configured properly by entering the following command in Exec Mode:

show dhcp service all

This command produces an output similar to that displayed below where DHCP name is dhcp1 :

Service name:                      dhcp1 
Context:                                   isp 
Bind:                                      Done 
Local IP Address:                          150.150.150.150 
Next Hop Address:                          192.179.91.3 
              MPLS-label: 
               Input:                      5000 
         Output:                           1566    1899 
Service Status:                            Started 
Retransmission Timeout:                    3000 (milli-secs) 
Max Retransmissions:                       2 
Lease Time:                                600 (secs) 
Minimum Lease Duration:                    600 (secs) 
Maximum Lease Duration:                    86400 (secs) 
DHCP Dead Time:                            120 (secs) 
DHCP Dead consecutive Failure:             5 
DHCP T1 Threshold Timer:                   50 
DHCP T2 Threshold Timer:                   88 
DHCP Client Identifier:                    Not Used 
DHCP Algorithm:                            Round Robin 
DHCP Servers configured: 
 Address: 150.150.150.150                  Priority: 1 
DHCP server rapid-commit:                  disabled 
DHCP client rapid-commit:                  disabled 
DHCP chaddr validation:                    enabled

Step 2

Verify the DHCP service status by entering the following command in Exec Mode:

show dhcp service status

DHCPv6 Service Configuration

The system can be configured to use the Dynamic Host Control Protocol (DHCP) for IPv6 to enable the DHCP servers to pass the configuration parameters such as IPv6 network addresses to IPv6 nodes. DHCPv6 configuration is done within an APN.

These instructions assume that you have already configured the system level configuration as described in System Administration Guide and APN as described in P-GW PDN Context Configuration.

To configure the DHCPv6 service:

Procedure

Step 1	Create the DHCPv6 service in system context and bind it by applying the example configuration in the DHCPv6 Service Creation.
Step 2	Configure the DHCPv6 server and other configurable values for Renew Time, Rebind Time, Preferred Lifetime, and Valid Lifetime by applying the example configuration in the DHCPv6 Server Parameter Configuration.
Step 3	Configure the DHCPv6 client and other configurable values for Maximum Retransmissions, Server Dead Tries, and Server Resurrect Time by applying the example configuration in the DHCPv6 Client Parameter Configuration.
Step 4	Configure the DHCPv6 profile by applying the example configuration in the DHCPv6 Profile Configuration.
Step 5	Associate the DHCPv6 profile configuration with the APN by applying the example configuration in the Associate DHCPv6 Configuration.
Step 6	Verify your DHCPv6 Service configuration by following the steps in the DHCPv6 Service Configuration Verification.
Step 7	Save your configuration as described in the Verifying and Saving Your Configuration chapter.

DHCPv6 Service Creation

Use the following example to create the DHCPv6 service to support DHCP-based address assignment:

configure  
   context  <dest_ctxt_name> 
      dhcpv6-service  <dhcpv6_svc_name> 
         bind address  <ipv6_address> port  <port> 
         end

Notes:

To ensure proper operation, DHCPv6 functionality should be configured within a destination context.
The Port specifies the listen port and is used to start the DHCPv6 server bound to it. It is optional and if unspecified, the default port is 547.

DHCPv6 Server Parameter Configuration

Use the following example to configure the DHCPv6 server parameters to support DHCPv6-based address assignment:

configure  
   context  <dest_ctxt_name> 
      dhcpv6-service  <dhcpv6_svc_name> 
         dhcpv6-server  
         renew-time  <renewal_time> 
         rebind-time  <rebind_time> 
         preferred-lifetime  <pref_lifetime> 
         valid-lifetime  <valid_lifetime> 
         end

Notes:

Multiple DHCP can be configured by entering dhcp server command multiple times. A maximum of 256 services (regardless of type) can be configured per system.
renew-time configures the renewal time for prefixes assigned by dhcp-service. Default is 900 seconds.
rebind-time configures the rebind time for prefixes assigned by dhcp-service. Default is 900 seconds.
preferred-lifetime configures the preferred lifetime for prefixes assigned by dhcp-service. Default is 900 seconds.
valid-lifetime configures the valid lifetime for prefixes assigned by dhcp-service. Default is 900 seconds.

DHCPv6 Client Parameter Configuration

Use the following example to configure the DHCPv6 client parameters to support DHCPv6-based address assignment:

configure  
   context  <dest_ctxt_name> 
      dhcpv6-service  <dhcpv6_svc_name> 
         dhcpv6-client  
            server-ipv6-address  <ipv6_addr> port  <port> priority  <priority> 
            max-retransmissions  <max_number> 
            server-dead-time  <dead_time> 
            server-resurrect-time  <revive_time> 
            end

Notes:

DHCPv6 client configuration requires an IPv6 address, port, and priority. The port is used for communicating with the DHCPv6 server. If not specified, default port 547 is used. The Priority parameter defines the priority in which servers should be tried out.
max-retransmissions configures the max retransmission that DHCPV6-CLIENT will make towards DHCPV6-SERVER. Default is 20.
server-dead-time : PDN DHCPV6-SERVER is considered to be dead if it does not respond after given tries from client. Default is 5.
server-resurrect-time : PDN DHCPV6-SERVER is considered alive after it has been dead for given seconds. Default is 20.

DHCPv6 Profile Configuration

Use the following example to configure the DHCPv6 profile:

configure  
   context  <dest_ctxt_name> 
      dhcp-server-profile  <server_profile> 
         enable rapid-commit-dhcpv6  
         process dhcp-option-from  {  AAA  |  LOCAL  |  PDN-DHCP  }  priority  <priority> 
         dhcpv6-server-preference  <pref_value> 
         enable dhcpv6-server-unicast  
         enable dhcpv6-server-reconf  
         exit  
      dhcp-client-profile  <client_profile> 
									dhcpv6-client-unicast  
         client-identifier  { IMSI | MSISDN }  
         enable rapid-commit-dhcpv6  
         enable dhcp-message-spray  
         request dhcp-option dns-address  
         request dhcp-option netbios-server-address  
         request dhcp-option sip-server-address  
         end

Notes:

dhcp-server-profile command creates a server profile and then enters the DHCP Server Profile configuration mode.
enable rapid-commit-dhcpv6 command enables rapid commit on the DHCPv6 server. By default it is disabled. This is done to ensure that if there are multiple DHCPv6 servers in a network, with rapid-commit-option, they would all end up reserving resources for the UE.
process dhcp-option-from command configures in what order the configuration options should be processed for a given client request. For a given client configuration, values can be obtained from either AAA, PDN-DHCP-SERVER, or LOCAL. By default, AAA is preferred over PDN-DHCP, which is preferred over LOCAL configuration.
dhcpv6-server-preference : According to RFC-3315, DHCPv6-CLIENT should wait for a specified amount of time before considering responses to its queries from DHCPv6-SERVERS. If a server responds with a preference value of 255, DHCPv6-CLIENT need not wait any longer. Default value is 0 and it may have any configured integer between 1 and 255.
enable dhcpv6-server-unicast command enables server-unicast option for DHCPv6. By default, it is disabled.
enable dhcpv6-server-reconf command configures support for reconfiguration messages from the server. By default, it is disabled.
dhcpv6-client-unicast command Enables client to send messages on unicast address towards the server.
dhcp-client-profile command creates a client profile and then enters the DHCP Client Profile configuration mode.
client identifier command configures the client-identifier, which is sent to the external DHCP server. By default, IMSI is sent. Another available option is MSISDN.
enable rapid-commit-dhcpv6 command configures the rapid commit for the client. By default, rapid-commit option is enabled for both DHCPv4 & DHCPv6.
enable dhcp-message-spray command enables dhcp-client to spray a DHCP message to all configured DHCP servers in the PDN. By default this is disabled. With Rapid-Commit, there can only be one server to which this can be sent.
request dhcp-option command configures DHCP options which can be requested by the dhcp-client. It supports the following options:
- dns-address
- netbios-server-address
- sip-server-address

Associate DHCPv6 Configuration

Use the following example to associate the DHCPv6 profile with an APN:

configure  
   context  <dest_ctxt_name> 
      apn  <apn_name> 
         dhcpv6 service-name  <dhcpv6_svc_name> server-profile  <server_profile> client-profile  <client_profile> 
         dhcpv6 ip-address-pool-name  <dhcpv6_ip_pool> 
         dhcpv6 context-name  <dest_ctxt> 
         end

DHCPv6 Service Configuration Verification

Procedure

Step 1

Verify that your DHCPv6 servers configured properly by entering the following command in Exec Mode:

show dhcpv6-service all

This command produces an output similar to that displayed below where DHCPv6 service name is dhcp6-service :

Service name:                dhcpv6-service 
Context:                             A 
Bind Address:                        2092::192:90:92:40 
Bind :                               Done 
Service Status:                      Started 
Server Dead Time:                    120 (secs) 
Server Dead consecutive Failure:5 
Server Select Algorithm:             First Server 
Server Renew Time:                   400 (secs) 
Server Rebind Time:                  500 (secs) 
Server Preferred Life Time:          600 (secs) 
Server Valid Life Time:              700 (secs) 
Max Retransmissions:                 3 (secs) 
Server Dead Tries:                   4 (secs) 
Server Resurrect Time:               10 (secs) 
ipv6_nd_flag:                        O_FLAG 
DHCPv6 Servers configured: 
          Address:                   2092::192:90:92:40 Priority: 1    enabled

Step 2

Verify the DHCPv6 service status by entering the following command in Exec Mode:

show dhcpv6 status service  dhcpv6_service_name

Configuring the System as a Standalone PMIP P-GW in an LTE-SAE Network

This section provides a high-level series of steps and the associated configuration file examples for configuring the system to perform as a P-MIP P-GW in an LTE-SAE test environment. For a complete configuration file example, refer to the Sample Configuration Files appendix. Information provided in this section includes the following:

Information Required Information Required
How This Configuration Works
P-MIP P-GW (LTE) Configuration

Information Required

Required Local Context Configuration Information

The following table lists the information that is required to configure the local context on an P-GW.

Table 5. Required Information for Local Context Configuration

Required Information

Description

Management Interface Configuration

Interface name

An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface will be recognized by the system.

Multiple names are needed if multiple interfaces will be configured.

IP address and subnet

IPv4 addresses assigned to the interface.

Multiple addresses and subnets are needed if multiple interfaces will be configured.

Physical port number

A single physical port can facilitate multiple interfaces.

Gateway IP address

Used when configuring static IP routes from the management interface(s) to a specific network.

Security administrator name

The name or names of the security administrator with full rights to the system.

Security administrator password

Open or encrypted passwords can be used.

Remote access type(s)

The type of remote access protocol that will be used to access the system, such as telnet, SSH, and/or FTP.

Important

In release 20.0 and higher Trusted StarOS builds, the telnet and FTP options are no longer available.

Required P-GW Context Configuration Information

The following table lists the information that is required to configure the P-GW context on a P-GW.

Table 6. Required Information for P-GW Context Configuration
Required Information	Description
P-GW context name	An identification string from 1 to 79 characters (alpha and/or numeric) by which the P-GW context will be recognized by the system.
Accounting policy name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the accounting policy will be recognized by the system. The accounting policy is used to set parameters for the Rf (off-line charging) interface.
S5/S8 Interface Configuration (To/from S-GW)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface will be recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
P-GW Service Configuration
P-GW service name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the P-GW service will be recognized by the system. Multiple names are needed if multiple P-GW services will be used.
LMA Service Configuration
LMA Service Name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the LMA service will be recognized by the system.

Required PDN Context Configuration Information

The following table lists the information that is required to configure the PDN context on a P-GW.

Table 7. Required Information for PDN Context Configuration
Required Information	Description
P-GW context name	An identification string from 1 to 79 characters (alpha and/or numeric) by which the P-GW context is recognized by the system.
IP Address Pool Configuration
IPv4 address pool name and range	An identification string between 1 and 31 characters (alpha and/or numeric) by which the IPv4 pool is recognized by the system. Multiple names are needed if multiple pools will be configured. A range of IPv4 addresses defined by a starting address and an ending address.
IPv6 address pool name and range	An identification string between 1 and 31 characters (alpha and/or numeric) by which the IPv6 pool is recognized by the system. Multiple names are needed if multiple pools will be configured. A range of IPv6 addresses defined by a starting address and an ending address.
Access Control List Configuration
IPv4 access list name	An identification string between 1 and 47 characters (alpha and/or numeric) by which the IPv4 access list is recognized by the system. Multiple names are needed if multiple lists will be configured.
IPv6 access list name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the IPv6 access list is recognized by the system. Multiple names are needed if multiple lists will be configured.
Deny/permit type	The types are: any by host IP address by IP packets by source ICMP packets by source IP address masking by TCP/UDP packets
Readdress or redirect type	The types are readdress server redirect context redirect css delivery-sequence redirect css service redirect nexthop
SGi Interface Configuration (To/from IPv4 PDN)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
SGi Interface Configuration (To/from IPv6 PDN)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.

Required AAA Context Configuration Information

The following table lists the information that is required to configure the AAA context on a P-GW.

Table 8. Required Information for AAA Context Configuration
Required Information	Description
Gx Interface Configuration (to PCRF)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 or IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
Gx Diameter Endpoint Configuration
End point name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the Gx Diameter endpoint configuration is recognized by the system.
Origin realm name	An identification string between 1 through 127 characters. The realm is the Diameter identity. The originator's realm is present in all Diameter messages and is typically the company or service name.
Origin host name	An identification string from 1 to 255 characters (alpha and/or numeric) by which the Gx origin host is recognized by the system.
Origin host address	The IP address of the Gx interface.
Peer name	The Gx endpoint name described above.
Peer realm name	The Gx origin realm name described above.
Peer address and port number	The IP address and port number of the PCRF.
Route-entry peer	The Gx endpoint name described above.
S6b Interface Configuration (to 3GPP AAA server)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 or IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
S6b Diameter Endpoint Configuration
End point name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the S6b Diameter endpoint configuration is recognized by the system.
Origin realm name	An identification string between 1 through 127 characters. The realm is the Diameter identity. The originator's realm is present in all Diameter messages and is typically the company or service name.
Origin host name	An identification string from 1 to 255 characters (alpha and/or numeric) by which the S6b origin host is recognized by the system.
Origin host address	The IP address of the S6b interface.
Peer name	The S6b endpoint name described above.
Peer realm name	The S6b origin realm name described above.
Peer address and port number	The IP address and port number of the AAA server.
Route-entry peer	The S6b endpoint name described above.
Gy Interface Configuration (to on-line charging server)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 or IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
Gy Diameter Endpoint Configuration
End point name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the Gy Diameter endpoint configuration is recognized by the system.
Origin realm name	An identification string between 1 through 127 characters. The realm is the Diameter identity. The originator's realm is present in all Diameter messages and is typically the company or service name.
Origin host name	An identification string from 1 to 255 characters (alpha and/or numeric) by which the Gy origin host is recognized by the system.
Origin host address	The IP address of the Gy interface.
Peer name	The Gy endpoint name described above.
Peer realm name	The Gy origin realm name described above.
Peer address and port number	The IP address and port number of the AAA server.
Route-entry peer	The Gy endpoint name described above.
Rf Interface Configuration (to off-line charging server)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 or IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
Rf Diameter Endpoint Configuration
End point name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the Rf Diameter endpoint configuration is recognized by the system.
Origin realm name	An identification string between 1 through 127 characters. The realm is the Diameter identity. The originator's realm is present in all Diameter messages and is typically the company or service name.
Origin host name	An identification string from 1 to 255 characters (alpha and/or numeric) by which the Rf origin host is recognized by the system.
Origin host address	The IP address of the Rf interface.
Peer name	The Rf endpoint name described above.
Peer realm name	The Rf origin realm name described above.
Peer address and port number	The IP address and port number of the PCRF.
Route-entry peer	The Rf endpoint name described above.

How This Configuration Works

Figure 3. Elements of the PMIP P-GW in the LTE Network

The S-GW establishes the S5/S8 connection by sending a Create Session Request message to the P-GW including an Access Point name (APN).
The P-GW service determines which context to use to provide AAA functionality for the session. This process is described in the How the System Selects Contexts section located in the Understanding the System Operation and Configuration chapter of the System Administration Guide.
The P-GW uses the configured Gx Diameter endpoint to establish the IP-CAN session.
The P-GW sends a CC-Request (CCR) message to the PCRF to indicate the establishment of the IP-CAN session and the PCRF acknowledges with a CC-Answer (CCA).
The P-GW uses the APN configuration to select the PDN context. IP addresses are assigned from the IP pool configured in the selected PDN context.
The P-GW responds to the S-GW with a Create Session Response message including the assigned address and additional information.
The S5/S8 data plane tunnel is established and the P-GW can forward and receive packets to/from the PDN.

P-MIP P-GW (LTE) Configuration

To configure the system to perform as a standalone P-MIP P-GW in an LTE-SAE network environment, review the following graphic and subsequent steps.

Procedure

Step 1	Set system configuration parameters such as activating PSCs by applying the example configurations found in the System Administration Guide.
Step 2	Set initial configuration parameters such as creating contexts and services by applying the example configurations found in the Initial Configuration.
Step 3	Configure the system to perform as a PMIP P-GW and set basic P-GW parameters such as PMIP interfaces and an IP route by applying the example configurations presented in the P-GW Service Configuration.
Step 4	Configure the PDN context by applying the example configuration in the P-GW PDN Context Configuration.
Step 5	Enable and configure the active charging service for Gx interface support by applying the example configuration in the Active Charging Service Configuration.
Step 6	Create a AAA context and configure parameters for AAA and policy by applying the example configuration in the AAA and Policy Configuration.
Step 7	Verify and save the configuration by following the instructions in the Verifying and Saving the Configuration.

Initial Configuration

Procedure

Step 1	Set local system management parameters by applying the example configuration in Modifying the Local Context.
Step 2	Create the context where the P-GW service will reside by applying the example configuration in Creating and Configuring a P-MIP P-GW Context.
Step 3	Create and configure APNs in the P-GW context by applying the example configuration in Creating and Configuring APNs in the P-GW Context.
Step 4	Create and configure AAA server groups in the P-GW context by applying the example configuration in Creating and Configuring AAA Groups in the P-GW Context.
Step 5	Create and configure a Local Mobility Anchor (LMA) service within the newly created context by applying example configuration in Creating and Configuring an LMA Service.
Step 6	Create a context through which the interface to the PDN will reside by applying the example configuration in Creating a P-GW PDN Context.

Modifying the Local Context

Use the following example to set the default subscriber and configure remote access capability in the local context:

configure  
   context local  
      interface  <lcl_cntxt_intrfc_name> 
         ip address  <ip_address> <ip_mask> 
            exit  
         server ftpd  
            exit  
         server telnetd  
            exit  
         subscriber default  
            exit  
         administrator  <name> encrypted password  <password> ftp  
         ip route  <ip_addr/ip_mask> <next_hop_addr> <lcl_cntxt_intrfc_name> 
         exit  
   port ethernet  <slot#/port#> 
      no shutdown  
      bind interface  <lcl_cntxt_intrfc_name> local 
      end

Creating and Configuring a P-MIP P-GW Context

Use the following example to create a P-GW context, create an S5/S8 IPv6 interface (for data traffic to/from the S-GW), and bind the S5/S8 interface to a configured Ethernet port:

configure  
   context  <pgw_context_name> -noconfirm  
      interface  <s5s8_interface_name> tunnel 
         ipv6 address  <ipv6_address> 
         tunnel-mode ipv6ip  
         source interface  <name> 
         destination address  <ipv6 address> 
         exit  
      exit

   policy accounting  <rf_policy_name> -noconfirm  
      accounting-level  {level_type} 
      accounting-event-trigger interim-timeout action stop-start  
      operator-string  <string> 
      exit  
   subscriber default  
      exit  
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <s5s8_interface_name> <pgw_context_name> 
      end

Notes:

The S5/S8 (P-GW to S-GW) interface must be an IPv6 address.
Set the accounting policy for the Rf (off-line charging) interface. The accounting level types are: flow, PDN, PDN-QCI, QCI, and subscriber. Refer to the Accounting Profile Configuration Mode Commands chapter in the Command Line Interface Reference for more information on this command.

Creating and Configuring APNs in the P-GW Context

Use the following configuration to create an APN:

configure  
   context  <pgw_context_name> -noconfirm  
      apn  <name> 
         accounting-mode radius-diameter  
         ims-auth-service  <gx_ims_service_name> 
         aaa group  <rf-radius_group_name> 
         dns primary  <ipv4_address> 
         dns secondary  <ipv4_address> 
         ip access-group  <name> in  
         ip access-group  <name> out  
         mediation-device context-name  <pgw_context_name> 
         ip context-name  <pdn_context_name> 
         ipv6 access-group  <name> in 
         ipv6 access-group  <name> out 
         active-charging rulebase  <name> 
         end

Notes:

The IMS Authorization Service is created and configured in the AAA context.
Multiple APNs can be configured to support different domain names.

Creating and Configuring AAA Groups in the P-GW Context

Use the following example to create and configure AAA groups supporting RADIUS and Rf accounting:

configure  
   context  <pgw_context_name> -noconfirm  
      aaa group  <rf-radius_group_name> 
         radius attribute nas-identifier  <id> 
         radius accounting interim interval  <seconds> 
         radius dictionary  <name> 
         radius mediation-device accounting server  <address> key  <key> 
         diameter authentication dictionary  <name> 
         diameter accounting dictionary  <name> 
         diameter authentication endpoint  <s6b_cfg_name> 
         diameter accounting endpoint  <rf_cfg_name> 
         diameter authentication server  <s6b_cfg_name> priority  <num> 
         diameter accounting server  <rf_cfg_name> priority  <num> 
         exit  
      aaa group default  
         radius attribute nas-ip-address address  <ipv4_address> 
         radius accounting interim interval  <seconds> 
         diameter authentication dictionary  <name> 
         diameter accounting dictionary  <name> 
         diameter authentication endpoint  <s6b_cfg_name> 
         diameter accounting endpoint  <rf_cfg_name> 
         diameter authentication server  <s6b_cfg_name> priority  <num> 
         diameter accounting server  <rf_cfg_name> priority  <num> 
         end

Creating and Configuring an LMA Service

Use the following configuration example to create the LMA service:

configure  
   context  <pgw_context_name> 
      lma-service  <lma_service_name> -noconfirm  
         no aaa accounting  
         revocation enable  
         bind address  <s5s8_ipv6_address> 
         end

Notes:

The no aaa acounting command is used to prevent duplicate accounting packets.
Enabling revocation provides for MIP registration revocation in the event that MIP revocation is negotiated with a MAG and a MIP binding is terminated, the LMA can send a revocation message to the MAG.

Creating a P-GW PDN Context

Use the following example to create a P-GW PDN context and Ethernet interface, and bind the interface to a configured Ethernet port.

configure  
   context  <pdn_context_name> -noconfirm  
      interface  <sgi_ipv4_interface_name> 
         ip address  <ipv4_address> 
      interface  <sgi_ipv6_interface_name> 
         ipv6 address  <address> 
         end

P-GW Service Configuration

Procedure

Step 1	Configure the P-GW service by applying the example configuration in the Configuring the P-GW Service.
Step 2	Specify an IP route to the P-MIP Serving Gateway by applying the example configuration in the Configuring a Static IP Route.

Configuring the P-GW Service

Use the following example to configure the P-GW service:

configure  
   context < pgw_context_name>  
      pgw-service < pgw_service_name> -noconfirm  
         plmn id mcc < id> mnc <id>  
         associate lma-service < lma_service_name>  
         associate qci-qos-mapping < name>  
         authorize external  
         fqdn host < domain_name> realm < realm_name>  
         end

Notes:

QCI-QoS mapping configurations are created in the AAA context. Refer to the Configuring QCI-QoS Mapping section for more information.
External authorization is performed by the 3GPP AAA server through the S6b interface. Internal authorization (APN) is default.
The fqdn host command configures a Fully Qualified Domain Name for the P-GW service used in messages between the P-GW and a 3GPP AAA server over the S6b interface.

Configuring a Static IP Route

Use the following example to configure static IP routes for data traffic between the P-GW and the S-GW:

configure  
   context < pgw_context_name>  
      ipv6 route < ipv6_addr/prefix> next-hop < sgw_addr> interface < pgw_sgw_intrfc_name>  
      end

Notes:

Static IP routing is not required for configurations using dynamic routing protocols.

P-GW PDN Context Configuration

Use the following example to configure an IP Pool and APN, and bind a port to the interface in the PDN context:

configure  
   context  <pdn_context_name> -noconfirm  
      interface  <pdn_sgi_ipv4_interface_name> 
         ip address  <ipv4_address> 
         exit  
      interface  <pdn_sgi_ipv6_interface_name> 
         ip address  <ipv6_address> 
         exit  
      ip pool  <name> range  <start_address end_address> public  <priority> 
      ipv6 pool  <name> range  <start_address end_address> public  <priority> 
      subscriber default  
      ip access-list  <name> 
         redirect css service  <name> any  
         permit any  
         exit  
      ipv6 access-list  <name> 
         redirect css service  <name> any  
         permit any  
         exit  
      aaa group default  
         exit  
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <pdn_ipv4_interface_name> <pdn_context_name> 
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <pdn_ipv6_interface_name> <pdn_context_name> 
      end

Active Charging Service Configuration

Use the following example to enable and configure active charging:

configure  
   require active-charging optimized-mode  
   active-charging service < name>  
      ruledef < name>  
         < rule>  
            .  
            .  
         < rule>  
         exit  
      ruledef default  
         ip any-match = TRUE  
         exit  
      ruledef  icmp-pkts 
         icmp any-match = TRUE  
         exit  
      ruledef  qci3 
          icmp any-match = TRUE  
         exit  
      ruledef  static 
         icmp any-match = TRUE  
         exit  
      charging-action < name>  
         < action>  
            .  
            .  
         < action>  
         exit  
      charging-action  icmp 
         billing-action egcdr  
         exit  
      charging-action  qci3 
         content-id < id>  
         billing-action rf  
         qos-class-identifier < id>  
         allocation-retention-priority < priority>  
         tft packet-filter  qci3 
         exit  
      charging-action  static 
         service-identifier < id>  
         billing-action rf  
         qos-class-identifier < id>  
         allocation-retention-priority < priority>  
         tft packet-filter  qci3 
         exit  

         ip remote-address = { < ipv4/ipv6_address> | < ipv4/ipv6_address/mask> }  
         ip remote-port { = <  port_number> | range < start_port_number> to < end_port_number> }  

      rulebase default  
                  exit  
      rulebase < name>  
         < rule_base>  
            .  
            .  
         < rule_base>  
         end

Notes:

A rulebase is a collection of rule definitions and associated charging actions.
As depicted above, multiple rule definitions, charging actions, and rule bases can be configured to support a variety of charging scenarios.
Routing and/or charging rule definitions can be created/configured. The maximum number of routing rule definitions that can be created is 256. The maximum number of charging rule definitions is 2048.
Charging actions define the action to take when a rule definition is matched.

Important

If uplink packet is coming on the dedicated bearer, only rules installed on the dedicated bearer are matched. Static rules are not matched and packets failing to match the same will be dropped.

AAA and Policy Configuration

Procedure

Step 1	Configure AAA and policy interfaces by applying the example configuration in the Creating and Configuring the AAA Context.
Step 2	Create and configure QCI to QoS mapping by applying the example configuration in the Configuring QCI-QoS Mapping section.

Creating and Configuring the AAA Context

Use the following example to create and configure a AAA context including diameter support and policy control, and bind the port to interface supporting traffic between this context and a PCRF:

configure  
   context  <aaa_context_name> -noconfirm  
      interface  <s6b_interface_name> 
         ip address  <ipv4_address> 
         exit  
      interface  <gx_interface_name> 
         ipv6 address  <address> 
         exit  
      interface  <gy_interface_name> 
         ipv6 address  <address> 
         exit  
      interface  <rf_interface_name> 
         ip address  <ipv4_address> 
         exit  
      subscriber default  
         exit  
      ims-auth-service  <gx_ims_service_name> 
         p-cscf discovery table  <#> algorithm round-robin  
         p-cscf table  <#> row-precedence  <#> ipv6-address  <pcrf_adr> 
         policy-control  
            diameter origin endpoint  <gx_cfg_name> 
            diameter dictionary  <name> 
            diameter host-select table  <#> algorithm round-robin  
            diameter host-select row-precedence  <#> table  <#> host  <gx_cfg_name> 
            exit  
         exit  
      diameter endpoint  <s6b_cfg_name> 
         origin realm  <realm_name> 
         origin host  <name> address  <aaa_ctx_ipv4_address> 
         peer  <s6b_cfg_name> realm  <name> address  <aaa_ipv4_addr> 
         route-entry peer  <s6b_cfg_name> 
         exit  
      diameter endpoint  <gx_cfg_name> 
         origin realm  <realm_name> 
         origin host  <name> address  <aaa_ctx_ipv6_address> 
         peer  <gx_cfg_name> realm  <name> address  <pcrf_addr> 
         route-entry peer  <gx_cfg_name> 
         exit  
      diameter endpoint  <gy_cfg_name> 
         use-proxy  
         origin realm  <realm_name> 
         origin host  <name> address  <gy_ipv6_address> 
         connection retry-timeout  <seconds> 
         peer  <gy_cfg_name> realm <name> address  <ocs_ipv6_addr> 
         route-entry peer  <gy_cfg_name> 
         exit  
      diameter endpoint  <rf_cfg_name> 
         origin realm  <realm_name> 
         origin host  <name> address  <rf_ipv4_address> 
         peer  <rf_cfg_name> realm  <name> address  <ofcs_ipv4_addr> 
         route-entry peer  <rf_cfg_name> 
         exit  
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <s6b_interface_name> <aaa_context_name> 
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <gx_interface_name> <aaa_context_name> 
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <gy_interface_name> <aaa_context_name> 
      exit  
   port ethernet  <slot_number/port_number> 
      no shutdown  
      bind interface  <rf_interface_name> <aaa_context_name> 
      end

Notes:

The p-cscf table command under ims-auth-service can also specify an IPv4 address to the PCRF.
The S6b interface IP address can also be specified as an IPv6 address using the ipv6 address command.
The Gx interface IP address can also be specified as an IPv4 address using the ip address command.
The Gy interface IP address can also be specified as an IPv4 address using the ip address command.
The Rf interface IP address can also be specified as an IPv6 address using the ipv6 address command.

Configuring QCI-QoS Mapping

Use the following example to create and map QCI values to enforceable QoS parameters:

configure  
   qci-qos-mapping < name>  
      qci 1 user-datagram dscp-marking < hex>  
      qci 3 user-datagram dscp-marking < hex>  
      qci 9 user-datagram dscp-marking < hex>  
      end

Notes:

The P-GW does not support non-standard QCI values unless a valid license key is installed.

QCI values 1 through 9 are standard values defined in 3GPP TS 23.203; the P-GW supports these standard values.

From 3GPP Release 8 onwards, operator-specific/non-standard QCIs can be supported and carriers can define QCI 128- 254.
The above configuration only shows one keyword example. Refer to the QCI - QOS Mapping Configuration Mode Commands chapter in the Command Line Interface Reference for more information on the qci command and other supported keywords.

Verifying and Saving the Configuration

Configuring the System as a Standalone PMIP P-GW Supporting an eHRPD Network

This section provides a high-level series of steps and the associated configuration file examples for configuring the system to perform as a P-MIP P-GW supporting an eHRPD test environment. For a complete configuration file example, refer to the Sample Configuration Files appendix. Information provided in this section includes the following:

Information Required
How This Configuration Works
P-MIP P-GW (eHRPD) Configuration

Information Required

Required Local Context Configuration Information

The following table lists the information that is required to configure the local context on an P-GW.

Table 9. Required Information for Local Context Configuration

Required Information

Description

Management Interface Configuration

Interface name

An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface will be recognized by the system.

Multiple names are needed if multiple interfaces will be configured.

IP address and subnet

IPv4 addresses assigned to the interface.

Multiple addresses and subnets are needed if multiple interfaces will be configured.

Physical port number

A single physical port can facilitate multiple interfaces.

Gateway IP address

Used when configuring static IP routes from the management interface(s) to a specific network.

Security administrator name

The name or names of the security administrator with full rights to the system.

Security administrator password

Open or encrypted passwords can be used.

Remote access type(s)

The type of remote access protocol that will be used to access the system, such as telnet, SSH, and/or FTP.

Important

In release 20.0 and higher Trusted StarOS builds, the telnet and FTP options are no longer available.

Required P-GW Context Configuration Information

The following table lists the information that is required to configure the P-GW context on a P-GW.

Table 10. Required Information for P-GW Context Configuration
Required Information	Description
P-GW context name	An identification string from 1 to 79 characters (alpha and/or numeric) by which the P-GW context will be recognized by the system.
Accounting policy name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the accounting policy will be recognized by the system. The accounting policy is used to set parameters for the Rf (off-line charging) interface.
S2a Interface Configuration (To/from HSGW)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface will be recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
P-GW Service Configuration
P-GW service name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the P-GW service will be recognized by the system. Multiple names are needed if multiple P-GW services will be used.
PLMN ID	MCC number: The mobile country code (MCC) portion of the PLMN's identifier (an integer value between 100 and 999). MNC number: The mobile network code (MNC) portion of the PLMN's identifier (a 2 or 3 digit integer value between 00 and 999).
LMA Service Configuration
LMA Service Name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the LMA service will be recognized by the system.

Required PDN Context Configuration Information

The following table lists the information that is required to configure the PDN context on a P-GW.

Table 11. Required Information for PDN Context Configuration
Required Information	Description
P-GW context name	An identification string from 1 to 79 characters (alpha and/or numeric) by which the P-GW context is recognized by the system.
IP Address Pool Configuration
IPv4 address pool name and range	An identification string between 1 and 31 characters (alpha and/or numeric) by which the IPv4 pool is recognized by the system. Multiple names are needed if multiple pools will be configured. A range of IPv4 addresses defined by a starting address and an ending address.
IPv6 address pool name and range	An identification string between 1 and 31 characters (alpha and/or numeric) by which the IPv6 pool is recognized by the system. Multiple names are needed if multiple pools will be configured. A range of IPv6 addresses defined by a starting address and an ending address.
Access Control List Configuration
IPv4 access list name	An identification string between 1 and 47 characters (alpha and/or numeric) by which the IPv4 access list is recognized by the system. Multiple names are needed if multiple lists will be configured.
IPv6 access list name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the IPv6 access list is recognized by the system. Multiple names are needed if multiple lists will be configured.
Deny/permit type	The types are: any by host IP address by IP packets by source ICMP packets by source IP address masking by TCP/UDP packets
Readdress or redirect type	The types are readdress server redirect context redirect css delivery-sequence redirect css service redirect nexthop
SGi Interface Configuration (To/from IPv4 PDN)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
SGi Interface Configuration (To/from IPv6 PDN)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.

Required AAA Context Configuration Information

The following table lists the information that is required to configure the AAA context on a P-GW.

Table 12. Required Information for AAA Context Configuration
Required Information	Description
Gx Interface Configuration (to PCRF)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 or IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
Gx Diameter Endpoint Configuration
End point name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the Gx Diameter endpoint configuration is recognized by the system.
Origin realm name	An identification string between 1 through 127 characters. The realm is the Diameter identity. The originator's realm is present in all Diameter messages and is typically the company or service name.
Origin host name	An identification string from 1 to 255 characters (alpha and/or numeric) by which the Gx origin host is recognized by the system.
Origin host address	The IP address of the Gx interface.
Peer name	The Gx endpoint name described above.
Peer realm name	The Gx origin realm name described above.
Peer address and port number	The IP address and port number of the PCRF.
Route-entry peer	The Gx endpoint name described above.
S6b Interface Configuration (to 3GPP AAA server)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 or IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
S6b Diameter Endpoint Configuration
End point name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the S6b Diameter endpoint configuration is recognized by the system.
Origin realm name	An identification string between 1 through 127 characters. The realm is the Diameter identity. The originator's realm is present in all Diameter messages and is typically the company or service name.
Origin host name	An identification string from 1 to 255 characters (alpha and/or numeric) by which the S6b origin host is recognized by the system.
Origin host address	The IP address of the S6b interface.
Peer name	The S6b endpoint name described above.
Peer realm name	The S6b origin realm name described above.
Peer address and port number	The IP address and port number of the AAA server.
Route-entry peer	The S6b endpoint name described above.
Rf Interface Configuration (to off-line charging server)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 or IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the management interface(s) to a specific network.
Rf Diameter Endpoint Configuration
End point name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the Rf Diameter endpoint configuration is recognized by the system.
Origin realm name	An identification string between 1 through 127 characters. The realm is the Diameter identity. The originator's realm is present in all Diameter messages and is typically the company or service name.
Origin host name	An identification string from 1 to 255 characters (alpha and/or numeric) by which the Rf origin host is recognized by the system.
Origin host address	The IP address of the Rf interface.
Peer name	The Rf endpoint name described above.
Peer realm name	The Rf origin realm name described above.
Peer address and port number	The IP address and port number of the OFCS.
Route-entry peer	The Rf endpoint name described above.
Gy Interface Configuration (to on-line charging server)
Interface name	An identification string between 1 and 79 characters (alpha and/or numeric) by which the interface is recognized by the system. Multiple names are needed if multiple interfaces will be configured.
IP address and subnet	IPv4 or IPv6 addresses assigned to the interface. Multiple addresses and subnets are needed if multiple interfaces will be configured.
Physical port number	The physical port to which the interface will be bound. Ports are identified by the chassis slot number where the line card resides followed by the number of the physical connector on the card. For example, port 17/1 identifies connector number 1 on the card in slot 17. A single physical port can facilitate multiple interfaces.
Gateway IP address	Used when configuring static IP routes from the interface(s) to a specific network.
Gy Diameter Endpoint Configuration
End point name	An identification string from 1 to 63 characters (alpha and/or numeric) by which the Gy Diameter endpoint configuration is recognized by the system.
Origin realm name	An identification string between 1 through 127 characters. The realm is the Diameter identity. The originator's realm is present in all Diameter messages and is typically the company or service name.
Origin host name	An identification string from 1 to 255 characters (alpha and/or numeric) by which the Gy origin host is recognized by the system.
Origin host address	The IP address of the Gy interface.
Peer name	The Gy endpoint name described above.
Peer realm name	The Gy origin realm name described above.
Peer address and port number	The IP address and port number of the OCS.
Route-entry peer	The Gy endpoint name described above.

How This Configuration Works

Figure 5. Elements of the PMIP P-GW Supporting an eHRPD Network

The S-GW establishes the S5/S8 connection by sending a Create Session Request message to the P-GW including an Access Point name (APN).
The P-GW service determines which context to use to provide AAA functionality for the session. This process is described in the How the System Selects Contexts section located in the Understanding the System Operation and Configuration chapter of the System Administration Guide.
The P-GW uses the configured Gx Diameter endpoint to establish the IP-CAN session.
The P-GW sends a CC-Request (CCR) message to the PCRF to indicate the establishment of the IP-CAN session and the PCRF acknowledges with a CC-Answer (CCA).
The P-GW uses the APN configuration to select the PDN context. IP addresses are assigned from the IP pool configured in the selected PDN context.
The P-GW responds to the S-GW with a Create Session Response message including the assigned address and additional information.
The S5/S8 data plane tunnel is established and the P-GW can forward and receive packets to/from the PDN.

P-MIP P-GW (eHRPD) Configuration

To configure the system to perform as a standalone P-MIP P-GW in an eHRPD network environment, review the following graphic and subsequent steps.

Procedure

Step 1	Set system configuration parameters such as activating PSCs by applying the example configurations found in the System Administration Guide.
Step 2	Set initial configuration parameters such as creating contexts and services by applying the example configurations found in Initial Configuration.
Step 3	Configure the system to perform as a P-MIP P-GW and set basic P-GW parameters such as P-MIP interfaces and an IP route by applying the example configurations presented in P-GW Service Configuration.
Step 4	Configure the PDN context by applying the example configuration in P-GW PDN Context Configuration.
Step 5	Enable and configure the active charging service for Gx interface support by applying the example configuration in Active Charging Service Configuration.
Step 6	Create a AAA context and configure parameters for AAA and policy by applying the example configuration in AAA and Policy Configuration.
Step 7	Verify and save the configuration by following the instruction in Verifying and Saving the Configuration.

Initial Configuration

Procedure

Step 1	Set local system management parameters by applying the example configuration in Modifying the Local Context.
Step 2	Create the context where the P-GW service will reside by applying the example configuration in Creating and Configuring a P-MIP P-GW Context.
Step 3	Create and configure APNs in the P-GW context by applying the example configuration in Creating and Configuring APNs in the P-GW Context.
Step 4	Create and configure AAA server groups in the P-GW context by applying the example configuration in Creating and Configuring AAA Groups in the P-GW Context section.
Step 5	Create an eGTP service within the newly created context by applying the example configuration in Creating and Configuring an LMA Service.
Step 6	Create a context through which the interface to the PDN will reside by applying the example configuration in Creating a P-GW PDN Context.

Modifying the Local Context

Use the following example to set the default subscriber and configure remote access capability in the local context:

configure  
   context local  
      interface < lcl_cntxt_intrfc_name>  
         ip address < ip_address> < ip_mask>  
         exit  
      server ftpd  
         exit  
      server telnetd  
         exit  
      subscriber default  
         exit  
      administrator < name> encrypted password < password> ftp  
      ip route < ip_addr/ip_mask> < next_hop_addr> < lcl_cntxt_intrfc_name>  
      exit  
   port ethernet < slot#/port#>  
      no shutdown  
      bind interface < lcl_cntxt_intrfc_name> local  
      end

Creating and Configuring a P-MIP P-GW Context

Use the following example to create a P-GW context, create an S2a IPv6 interface (for data traffic to/from the HSGW), and bind the S2a interface to a configured Ethernet port:

configure  
   context < pgw_context_name> -noconfirm  
      interface < s2a_interface_name> tunnel  
         ipv6 address < address>  
         tunnel-mode ipv6ip  
            source interface < name>  
            destination address < ipv4 or ipv6 address>  
            exit  
         exit  
      policy accounting < rf_policy_name> -noconfirm  
         accounting-level { level_type}  
         accounting-event-trigger interim-timeout action stop-start  
         operator-string < string>  
         cc profile < index> interval < seconds>  
         exit  
      subscriber default  
         exit  
      exit  
   port ethernet < slot_number/port_number>  
      no shutdown  
      bind interface < s2a_interface_name> < pgw_context_name>  
      end

Notes:

The S2a (P-GW to HSGW) interface must be an IPv6 address.
Set the accounting policy for the Rf (off-line charging) interface. The accounting level types are: flow, PDN, PDN-QCI, QCI, and subscriber. Refer to the Accounting Profile Configuration Mode Commands chapter in the Command Line Interface Reference for more information on this command.

Creating and Configuring APNs in the P-GW Context

Use the following configuration to create an APN:

configure  
   context < pgw_context_name> -noconfirm  
      apn < name>  
         accounting-mode radius-diameter  
         associate accounting-policy < rf_policy_name>  
         ims-auth-service < gx_ims_service_name>  
         aaa group < rf-radius_group_name>  
         dns primary < ipv4_address>  
         dns secondary < ipv4_address>  
         ip access-group < name> in  
         ip access-group < name> out  
         mediation-device context-name < pgw_context_name>  
         ip context-name < pdn_context_name>  
         ipv6 access-group < name> in  
         ipv6 access-group < name> out  
         active-charging rulebase < name>  
         end

Notes:

The IMS Authorization Service is created and configured in the AAA context.
Multiple APNs can be configured to support different domain names.
The associate accounting-policy command is used to associate a pre-configured accounting policy with this APN. Accounting policies are configured in the P-GW context. An example is located in Creating and Configuring a P-MIP P-GW Context.

Creating and Configuring AAA Groups in the P-GW Context

Use the following example to create and configure AAA groups supporting RADIUS and Rf accounting:

configure  
   context < pgw_context_name> -noconfirm  
      aaa group < rf-radius_group_name>  
         radius attribute nas-identifier < id>  
         radius accounting interim interval < seconds>  
         radius dictionary < name>  
         radius mediation-device accounting server < address> key < key>  
         diameter authentication dictionary < name>  
         diameter accounting dictionary < name>  
         diameter authentication endpoint < s6b_cfg_name>  
         diameter accounting endpoint < rf_cfg_name>  
         diameter authentication server < s6b_cfg_name> priority < num>  
         diameter accounting server < rf_cfg_name> priority < num>  
         exit  
      aaa group default  
         radius attribute nas-ip-address address < ipv4_address>  
         radius accounting interim interval < seconds>  
         diameter authentication dictionary < name>  
         diameter accounting dictionary < name>  
         diameter authentication endpoint < s6b_cfg_name>  
         diameter accounting endpoint < rf_cfg_name>  
         diameter authentication server < s6b_cfg_name> priority < num>  
         diameter accounting server < rf_cfg_name> priority < num>

Creating and Configuring an LMA Service

Use the following configuration example to create the LMA service:

configure  
   context  <pgw_context_name>  
      lma-service < lma_service_name> -noconfirm  
         no aaa accounting  
         revocation enable  
         bind address < s2a_ipv6_address>  
         end

Notes:

The no aaa acounting command is used to prevent duplicate accounting packets.
Enabling revocation provides for MIP registration revocation in the event that MIP revocation is negotiated with a MAG and a MIP binding is terminated, the LMA can send a revocation message to the MAG.

Creating a P-GW PDN Context

Use the following example to create a P-GW PDN context and Ethernet interfaces.

configure  
   context < pdn_context_name> -noconfirm  
      interface < sgi_ipv4_interface_name>  
         ip address < ipv4_address>  
         exit  
      interface < sgi_ipv6_interface_name>  
         ipv6 address < address>  
         end

P-GW Service Configuration

Procedure

Step 1	Configure the P-GW service by applying the example configuration in Configuring the P-GW Service.
Step 2	Specify an IP route to the HRPD Serving Gateway by applying the example configuration in Configuring a Static IP Route.

Configuring the P-GW Service

Use the following example to configure the P-GW service:

configure  
   context < pgw_context_name>  
      pgw-service < pgw_service_name> -noconfirm  
         associate lma-service < lma_service_name>  
         associate qci-qos-mapping < name>  
         authorize external  
         fqdn host < domain_name> realm < realm_name>  
         plmn id mcc < id> mnc < id>  
         end

Notes:

QCI-QoS mapping configurations are created in the AAA context. Refer to Configuring QCI-QoS Mapping for more information.
External authorization is performed by the 3GPP AAA server through the S6b interface. Internal authorization (APN) is default.
The fqdn host command configures a Fully Qualified Domain Name for the P-GW service used in messages between the P-GW and a 3GPP AAA server over the S6b interface.

Configuring a Static IP Route

Use the following example to configure static IP routes for data traffic between the P-GW and the HSGW:

configure  
   context < pgw_context_name>  
      ipv6 route < ipv6_addr/prefix> next-hop < hsgw_addr> interface < pgw_hsgw_intrfc_name>  
      end

Notes:

Static IP routing is not required for configurations using dynamic routing protocols.

P-GW PDN Context Configuration

Use the following example to configure IP pools and IP Access Control Lists (ACLs), and bind ports to the interfaces in the PDN context:

configure  
   context < pdn_context_name> -noconfirm  
      ip pool < name> range < start_address end_address> public < priority>  
      ipv6 pool < name> range < start_address end_address> public < priority>  
      subscriber default  
         exit  
      ip access-list < name>  
         redirect css service < name> any  
         permit any  
         exit  
      ipv6 access-list < name>  
         redirect css service < name> any  
         permit any  
         exit  
      aaa group default  
         exit  
            exit  
   port ethernet < slot_number/port_number>  
      no shutdown  
      bind interface < pdn_sgi_ipv4_ interface_name> < pdn_context_name>  
      exit  
   port ethernet < slot_number/ port_number>  
      no shutdown  
      bind interface < pdn_sgi_ipv6_interface_name> < pdn_context_name>  
      end

Active Charging Service Configuration

Use the following example to enable and configure active charging:

configure  
   require active-charging optimized-mode  
   active-charging service < name>  
      ruledef < name>  
         < rule_definition>

            .  
            .  
         < rule_definition>  
         exit  
      ruledef < name>  
         < rule_definition>  
            .  
            .  
         < rule_definition>  
         exit  
      charging-action < name>  
         < action>  
            .  
            .  
         < action>  
         exit  
      charging-action < name>  
         < action>  
            .  
            .  
         < action>  
         exit  
      packet-filter < packet_filter_name>   
         ip remote-address = { <  ipv4/ipv6_address> | < ipv4/ipv6_address/mask> }  
         ip remote-port { = <  port_number> | range < start_port_number> to < end_port_number> }  

      rulebase default  
      exit  
      rulebase < name>  
         < rule_base>  
            .  
            .  
         < rule_base>  
         end

Notes:

A rulebase is a collection of rule definitions and associated charging actions.
Active charging in optimized mode enables the service as part of the session manager instead of part of ACS managers.
As depicted above, multiple rule definitions, charging actions, and rule bases can be configured to support a variety of charging scenarios.
Routing and/or charging rule definitions can be created/configured. The maximum number of routing rule definitions that can be created is 256. The maximum number of charging rule definitions is 2048.
Charging actions define the action to take when a rule definition is matched.

Important

If uplink packet is coming on the dedicated bearer, only rules installed on the dedicated bearer are matched. Static rules are not matched and packets failing to match the same will be dropped.

AAA and Policy Configuration

Procedure

Step 1	Configure AAA and policy interfaces by applying the example configuration in the Creating and Configuring the AAA Context section.
Step 2	Create and configure QCI to QoS mapping by applying the example configuration in the Configuring QCI-QoS Mapping section.

Creating and Configuring the AAA Context

Use the following example to create and configure a AAA context including diameter support and policy control, and bind ports to interfaces supporting traffic between this context, a PCRF, a 3GPP AAA server, an on-line charging server, and an off-line charging server:

configure  
   context < aaa_context_name> -noconfirm  
      interface < s6b_interface_name>  
         ip address < ipv4_address>  
         exit  
      interface < gx_interface_name>  
         ipv6 address < address>  
         exit  
      interface < rf_interface_name>  
         ip address < ipv4_address>  
         exit  
      interface < gy_interface_name>  
         ipv6 address < address>  
         exit  
      subscriber default  
         exit  
      ims-auth-service < gx_ims_service_name>  
         p-cscf discovery table < #> algorithm round-robin  
         p-cscf table < #> row-precedence < #> ipv6-address < pcrf_adr>  
         policy-control  
            diameter origin endpoint < gx_cfg_name>  
            diameter dictionary < name>  
            diameter host-select table < #> algorithm round-robin  
            diameter host-select row-precedence < #> table < #> host < gx_cfg_name>  
            exit  
         exit  
      diameter endpoint < s6b_cfg_name>  
         origin realm < realm_name>  
         origin host < name> address < aaa_ctx_ipv4_address>  
         peer < s6b_cfg_name> realm < name> address < aaa_ip_addr>  
         route-entry peer < s6b_cfg_name>  
         exit  
      diameter endpoint < gx_cfg_name>  
         origin realm < realm_name>  
         origin host < name> address < aaa_context_ip_address>  
         peer < gx_cfg_name> realm < name> address < pcrf_ipv6_addr>  
         route-entry peer < gx_cfg_name>  
         exit  
      diameter endpoint < rf_cfg_name>  
         origin realm < realm_name>  
         origin host < name> address < aaa_ip_address>  
         peer < rf_cfg_name> realm < name> address < ofcs_ip_addr>  
         route-entry peer < rf_cfg_name>  
         exit  
      diameter endpoint < gy_cfg_name>  
         use-proxy  
         origin realm < realm_name>  
         origin host < name> address < aaa_ip_address>  
         connection retry-timeout < seconds>  
         peer < gy_cfg_name> realm < name> address < ocs_ip_addr>  
         route-entry peer < gy_cfg_name>  
         exit  
      exit  
   port ethernet < slot_number/port_number>  
      no shutdown  
      bind interface < s6b_interface_name> < aaa_context_name>  
      exit  
   port ethernet < slot_number/port_number>  
      no shutdown  
      bind interface < gx_interface_name> < aaa_context_name>  
      exit  
   port ethernet < slot_number/port_number>  
      no shutdown  
      bind interface < gy_interface_name> < aaa_context_name>  
      exit  
   port ethernet < slot_number/port_number>  
      no shutdown  
      bind interface < rf_interface_name> < aaa_context_name>  
      end

Notes:

The p-cscf table command under ims-auth-service can also specify an IPv4 address to the PCRF.
The S6b interface IP address can also be specified as an IPv6 address using the ipv6 address command.
The Gx interface IP address can also be specified as an IPv4 address using the ip address command.
The Gy interface IP address can also be specified as an IPv4 address using the ip address command.
The Rf interface IP address can also be specified as an IPv6 address using the ipv6 address command.

Configuring QCI-QoS Mapping

Use the following example to create and map QCI values to enforceable QoS parameters:

configure  
   qci-qos-mapping < name>  
      qci 1 user-datagram dscp-marking < hex>  
      qci 3 user-datagram dscp-marking < hex>  
      qci 9 user-datagram dscp-marking < hex>  
      end

Notes:

The P-GW does not support non-standard QCI values unless a valid license key is installed.

QCI values 1 through 9 are standard values defined in 3GPP TS 23.203; the P-GW supports these standard values.

From 3GPP Release 8 onwards, operator-specific/non-standard QCIs can be supported and carriers can define QCI 128- 254.
The above configuration only shows one keyword example. Refer to the QCI - QOS Mapping Configuration Mode Commands chapter in the Command Line Interface Reference for more information on the qci command and other supported keywords.

Verifying and Saving the Configuration

Configuring Optional Features on the P-GW

The configuration examples in this section are optional and provided to cover the most common uses of the P-GW in a live network. The intent of these examples is to provide a base configuration for testing.

Configuring ACL-based Node-to-Node IP Security on the S5 Interface

The configuration example in this section creates an IKEv2/IPSec ACL-based node-to-node tunnel endpoint on the S5 interface.

Important

Use of the IP Security feature requires that a valid license key be installed. Contact your local Sales or Support representative for information on how to obtain a license.

Creating and Configuring a Crypto Access Control List

The following example configures a crypto ACL (Access Control List), which defines the matching criteria used for routing subscriber data packets over an IPSec tunnel:

configure  
   context < pgw_context_name> -noconfirm  
      ip access-list < acl_name>  
         permit tcp host < source_host_address> host < dest_host_address>  
         end

Notes:

The permit command in this example routes IPv4 traffic from the server with the specified source host IPv4 address to the server with the specified destination host IPv4 address.

Creating and Configuring an IPSec Transform Set

The following example configures an IPSec transform set, which is used to define the security association that determines the protocols used to protect the data on the interface:

configure  
   context < pgw_context_name> -noconfirm  
      ipsec transform-set < ipsec_transform-set_name>  
         encryption aes-cbc-128  
         group none  
         hmac sha1-96  
         mode tunnel  
         end

Notes:

The encryption algorithm, aes-cbc-128 , or Advanced Encryption Standard Cipher Block Chaining, is the default algorithm for IPSec transform sets configured on the system.
The group none command specifies that no crypto strength is included and that Perfect Forward Secrecy is disabled. This is the default setting for IPSec transform sets configured on the system.
The hmac command configures the Encapsulating Security Payload (ESP) integrity algorithm. The sha1-96 keyword uses a 160-bit secret key to produce a 160-bit authenticator value. This is the default setting for IPSec transform sets configured on the system.
The mode tunnel command specifies that the entire packet is to be encapsulated by the IPSec header including the IP header. This is the default setting for IPSec transform sets configured on the system.

Creating and Configuring an IKEv2 Transform Set

The following example configures an IKEv2 transform set:

configure  
   context < pgw_context_name> -noconfirm  
      ikev2-ikesa transform-set < ikev2_transform-set_name>  
         encryption aes-cbc-128  
         group 2  
         hmac sha1-96  
         lifetime  <sec> 
         prf sha1  
         end

Notes:

The encryption algorithm, aes-cbc-128 , or Advanced Encryption Standard Cipher Block Chaining, is the default algorithm for IKEv2 transform sets configured on the system.
The group 2 command specifies the Diffie-Hellman algorithm as Group 2, indicating medium security. The Diffie-Hellman algorithm controls the strength of the crypto exponentials. This is the default setting for IKEv2 transform sets configured on the system.
The hmac command configures the Encapsulating Security Payload (ESP) integrity algorithm. The sha1-96 keyword uses a 160-bit secret key to produce a 160-bit authenticator value. This is the default setting for IKEv2 transform sets configured on the system.
The lifetime command configures the time the security key is allowed to exist, in seconds.
The prf command configures the IKE Pseudo-random Function which produces a string of bits that cannot be distinguished from a random bit string without knowledge of the secret key. The sha1 keyword uses a 160-bit secret key to produce a 160-bit authenticator value. This is the default setting for IKEv2 transform sets configured on the system.
IKEv2 ACL mode with NATT is not supported.
IKEv2 with VRF is not supported.

Creating and Configuring a Crypto Map

The following example configures an IKEv2 crypto map:

configure  
   context < pgw_context_name>  
      crypto map < crypto_map_name> ikev2-ipv4  
         match address < acl_name>  
         peer < ipv4_address>  
         authentication local pre-shared-key key < text>  
         authentication remote pre-shared-key key < text>  
         ikev2-ikesa transform-set list  < name1> . . .  name6>  
         payload < name> match ipv4  
            lifetime < seconds>  
            ipsec transform-set list < name1> . . . < name4>  
            exit  
         exit  
      interface < s5_intf_name>  
         ip address < ipv4_address>  
         crypto-map < crypto_map_name>  
         exit  
      exit  
   port ethernet < slot_number/port_number>  
      no shutdown  
      bind interface < s5_intf_name> < pgw_context_name>  
      end

Notes:

The type of crypto map used in this example is IKEv2/IPv4 for IPv4 addressing. An IKEv2/IPv6 crypto map can also be used for IPv6 addressing.
The ipsec transform-set list command specifies up to four IPSec transform sets.

Configuring APN as Emergency

The configuration example in this section configures an emergency APN for VoLTE based E911 support.

In APN Configuration Mode, specify the name of the emergency APN and set the emergency inactivity timeout as follows. You may also configure the P-CSCF FQDN server name for the APN.

configure  
   context  <pgw_context_name> -noconfirm  
      apn < name>  
         emergency-apn  
         timeout emergency-inactivity < seconds>  
         p-cscf fqdn < fqdn>  
         end

Notes:

By default, an APN is assumed to be non-emergency.
The timeout emergency-inactivity command specifies the timeout duration, in seconds, to check inactivity on the emergency session. <seconds > must be an integer value from 1 through 3600.
By default, emergency inactivity timeout is disabled (0).
The p-cscf fqdn command configures the P-CSCF FQDN server name for the APN. <fqdn > must be a string from 1 to 256 characters in length.
P-CSCF FQDN has more significance than CLI-configured P-CSCF IPv4 and IPv6 addresses.

Configuring Common Gateway Access Support

This section describes some advance feature configuration to support multiple access networks (CDMA, eHRPD ,and LTE) plus a GSM/UMTS for international roaming with the same IP addressing behavior and access to 3GPP AAA for subscriber authorization. Subscribers using static IP addressing will be able to get the same IP address regardless of the access technology.

This configuration combines 3G and 4G access technologies in a common gateway supporting logical services of HA, P-GW, and GGSN to allow subscribers to have the same user experience, independent of the access technology available.

Important

This feature is a license-enabled support and you may need to install a feature specific session license on your system to use some commands related to this configuration.

These instructions assume that you have already configured the system level configuration as described in System Administration Guide and P-GW service.

To configure the S6b and other advance features:

Configure Diameter endpoint by applying the example configuration in Diameter Endpoint Configuration.
Create or modify AAA group by applying the example configuration in AAA Group Configuration.
Modify P-GW service to allow authorization with HSS by applying the example configuration in Authorization over S6b Configuration.
Optional. Create and associate DNS client parameters by applying the example configuration in DNS Client Configuration.
Optional. Modify P-GW service to accept duplicate calls when received with same IP address by applying the example configuration in Duplicate Call Accept Configuration.
Verify your S6b configuration by following the steps in Common Gateway Access Support Configuration Verification.
Save your configuration as described in the Verifying and Saving Your Configuration chapter.

Diameter Endpoint Configuration

Use the following example to configure the Diameter endpoint:

configure  
   context < pgw_ctxt_name> -noconfirm  
      diameter endpoint < s6b_endpoint_name>  
         origin host < host_name> address < ip_address>  
         peer < peer_name> realm < realm_name> address < ip_address> port < port_num>  
      end

Notes:

<pgw_ctxt_name > is name of the context which contains P-GW service on system.

AAA Group Configuration

Use the following example create/modify the AAA group for this feature.

configure  
   context < fa_ctxt_name>  
      aaa group < aaa_grp_name>  
         diameter authentication dictionary aaa-custom15  
            diameter authentication endpoint < s6b_endpoint_name>  
            diameter authentication server < server_name> priority < priority>  
            end

Notes:

<s6b_endpoint_name > is name of the existing Diameter endpoint.

Authorization over S6b Configuration

Use the following example to enable the S6b interface on P-GW service with 3GPP AAA/HSS:

configure  
   context  <pgw_ctxt_name>  
      pgw-service < pgw_svc_name>  
         plmn id mcc < number> mnc < number>  
         authorize-with-hss  
         fqdn host < host_name> realm < realm_name> 
         end

Notes:

<pgw_svc_name > is name of the P-GW service which is already created on the system.

DNS Client Configuration

Use the following example to enable the S6b interface on P-GW service with 3GPP AAA/HSS:

configure  
   context < pgw_ctxt_name>  
      ip domain-lookup  
      ip name-servers < ip_address/mask>  
      dns-client < dns_name>  
         bind address < ip_address>  
         resolver retransmission-interval < duration>  
         resolver number-of-retries < retrie>  
         cache ttl positive < ttl_value>  
         exit  
      pgw-service < pgw_svc_name>  
         default dns-client context  
         end

Notes:

<pgw_svc_name > is name of the P-GW service which is already created on the system.

Duplicate Call Accept Configuration

Use the following example to configure P-GW service to accept the duplicate session calls with request for same IP address:

configure  
   context < pgw_ctxt_name>  
      pgw-service < pgw_svc_name>  
         newcall duplicate-subscriber-requested-address accept  
         end

Notes:

<pgw_svc_name > is name of the P-GW service which is already created on the system.

Common Gateway Access Support Configuration Verification

Verify that your common gateway access support is configured properly by entering the following command in Exec Mode:

show pgw-service all

The output from this command should look similar to the sample shown below. In this example P-GW service named PGW1 was configured in the vpn1 context.

Service name:                     pgw1 
Context:                          cn1 
Associated PGW svc:               None 
Associated GTPU svc:              None 
Accounting Context Name:          cn1 
dns-client Context Name:          cn1 
Authorize:                        hss 
Fqdn-name:                        xyz.abc@starent.networks.com 
Bind:                             Not Done 
Local IP Address:                 0.0.0.0          Local IP Port:                    2123  
Self PLMN:                        Not defined 
Retransmission Timeout:           5 (secs)

Configuring Dynamic Node-to-Node IP Security on the S5 Interface

The configuration example in this section creates an IPSec/IKEv2 dynamic node-to-node tunnel endpoint on the S5 interface.

Important

Use of the IP Security feature requires that a valid license key be installed. Contact your local Sales or Support representative for information on how to obtain a license.

Creating and Configuring an IPSec Transform Set

The following example configures an IPSec transform set, which is used to define the security association that determines the protocols used to protect the data on the interface:

configure  
   context < pgw_context_name> -noconfirm  
      ipsec transform-set < ipsec_transform-set_name>  
         encryption aes-cbc-128  
         group none  
         hmac sha1-96  
         mode tunnel  
         end

Notes:

The encryption algorithm, aes-cbc-128 , or Advanced Encryption Standard Cipher Block Chaining, is the default algorithm for IPSec transform sets configured on the system.
The group none command specifies that no crypto strength is included and that Perfect Forward Secrecy is disabled. This is the default setting for IPSec transform sets configured on the system.
The hmac command configures the Encapsulating Security Payload (ESP) integrity algorithm. The sha1-96 keyword uses a 160-bit secret key to produce a 160-bit authenticator value. This is the default setting for IPSec transform sets configured on the system.
The mode tunnel command specifies that the entire packet is to be encapsulated by the IPSec header, including the IP header. This is the default setting for IPSec transform sets configured on the system.

Creating and Configuring an IKEv2 Transform Set

The following example configures an IKEv2 transform set:

configure  
   context  <pgw_context_name> -noconfirm  
      ikev2-ikesa transform-set < ikev2_transform-set_name>  
         encryption aes-cbc-128  
         group 2  
         hmac sha1-96  
         lifetime  <sec> 
         prf sha1  
         end

Notes:

The encryption algorithm, aes-cbc-128 , or Advanced Encryption Standard Cipher Block Chaining, is the default algorithm for IKEv2 transform sets configured on the system.
The group 2 command specifies the Diffie-Hellman algorithm as Group 2, indicating medium security. The Diffie-Hellman algorithm controls the strength of the crypto exponentials. This is the default setting for IKEv2 transform sets configured on the system.
The hmac command configures the Encapsulating Security Payload (ESP) integrity algorithm. The sha1-96 keyword uses a 160-bit secret key to produce a 160-bit authenticator value. This is the default setting for IKEv2 transform sets configured on the system.
The lifetime command configures the time the security key is allowed to exist, in seconds.
The prf command configures the IKE Pseudo-random Function, which produces a string of bits that cannot be distinguished from a random bit string without knowledge of the secret key. The sha1 keyword uses a 160-bit secret key to produce a 160-bit authenticator value. This is the default setting for IKEv2 transform sets configured on the system.

Creating and Configuring a Crypto Template

The following example configures an IKEv2 crypto template:

configure  
   context  <pgw_context_name> -noconfirm  
      crypto template < crypto_template_name> ikev2-dynamic  
         ikev2-ikesa transform-set list < name1> . . . < name6>  
         ikev2-ikesa rekey  
         payload < name> match childsa match ipv4  
            ipsec transform-set list < name1> . . . < name4>  
            rekey  
            end

Notes:

The ikev2-ikesa transform-set list command specifies up to six IKEv2 transform sets.
The ipsec transform-set list command specifies up to four IPSec transform sets.

Binding the S5 IP Address to the Crypto Template

The following example configures the binding of the S5 interface to the crypto template:

configure  
   context < pgw_ingress_context_name> -noconfirm  
      gtpu-service < gtpu_ingress_service_name>  
         bind ipv4-address < s5_interface_ip_address> crypto-template < sgw_s5_crypto_template>  
         exit  
      egtp-service < egtp_ingress_service_name>  
         interface-type interface-pgw-ingress  
         associate gtpu-service < gtpu_ingress_service_name>  
         gtpc bind ipv4-address < s5_interface_ip_address>  
         exit  
      pgw-service < pgw_service_name> -noconfirm  
         plmn id mcc < id> mnc <id> primary  
         associate egtp-service < egtp_ingress_service_name>  
         end

Notes:

The bind command in the GTP-U and eGTP service configuration can also be specified as an IPv6 address using the ipv6-address command.

Configuring Guard Timer on Create Session Request Processing

P-GW has an existing timer "session setup-timeout" which is hard coded to 60 seconds, which is used as a guard timer for session creation. This timer is used for all APNs and is started when a Create Session Request is received for any session creation.

Internal or external processing issues or delay at external interfaces, for example, Gx/Gy, can cause Create Session Request processing to run longer than time expected in end to end call setup. If the session processing is not complete when the timer expires, the Create Session Request processing is stopped and the P-GW performs an internal cleanup by stopping all other corresponding sessions, for example Gx/Gy. The P-GW responds with a Create Session Failure response stating that no resources are available to S-GW. In successful cases when there's no delay timer is stopped during sending out the Create Session Response.

A new CLI command has been introduced to allow a configurable value to override the previously hardcoded default session setup timeout value of 60 seconds. This will help to fine tune the call setup time at P-GW with respect to end to end call setup time.

Configuring Session Timeout

The following configuration example makes a P-GW session setup timeout configurable.

configure  
   context   context_name 
      pgw-service   service_name 
         setup-timeout   timer-value 
         [  default | no ] setup-timeout    
         end

Notes:

setup-timeout: Specifies the session setup timeout period, in seconds. If P-GW is able to process the Create Session Request message before the timer expires, P-GW stops the timer and sends a successful Create Session Response.

timer_value must be an integer from 1 to 120.

Default: 60 seconds
default: Default value is 60 seconds. If no value is set, the P-GW service sets the timer to the default value.
no: Sets the timer to the default value of 60 seconds.

Configuring the GTP Echo Timer

The GTP echo timer on the ASR 5500 P-GW can be configured to support two different types of path management: default and dynamic. This timer can be configured on the GTP-C and/or the GTP-U channels.

Default GTP Echo Timer Configuration

The following examples describe the configuration of the default eGTP-C and GTP-U interface echo timers:

eGTP-C

configure  
      configure  
            context < context_name>  
                  egtp-service < egtp_service_name>  
                        gtpc echo-interval < seconds>   
                        gtpc echo-retransmission-timeout < seconds>  
                        gtpc max-retransmissions < num>  
                        end

Notes:

The following diagram describes a failure and recovery scenario using default settings of the three gtpc commands in the example above:
The multiplier (x2) is system-coded and cannot be configured.

GTP-U

configure  
   configure  
      context  <context_name>  
         gtpu-service < gtpu_service_name>  
            echo-interval < seconds>  
            echo-retransmission-timeout < seconds>  
            max-retransmissions < num

P-GW Administration Guide, StarOS Release 21.15

Bias-Free Language

Results

Chapter: PDN Gateway Configuration

PDN Gateway Configuration

Configuring the System as a Standalone eGTP P-GW

Information Required

Required Local Context Configuration Information

Required P-GW Context Configuration Information

Required PDN Context Configuration Information

Required AAA Context Configuration Information

How This Configuration Works

eGTP P-GW Configuration

Procedure

Initial Configuration

Procedure

Modifying the Local Context

Creating and Configuring an eGTP P-GW Context

Creating and Configuring APNs in the P-GW Context

Creating and Configuring AAA Groups in the P-GW Context

Creating and Configuring an eGTP Service

Creating and Configuring a GTP-U Service

Creating a P-GW PDN Context

P-GW Service Configuration

Procedure

Configuring the P-GW Service

Configuring a Static IP Route

P-GW PDN Context Configuration

Active Charging Service Configuration

Policy Configuration

Procedure

Creating and Configuring the AAA Context

Configuring QCI-QoS Mapping

Verifying and Saving the Configuration

DHCP Service Configuration

Procedure

DHCP Service Creation

DHCP Server Parameter Configuration

DHCP Service Configuration Verification

Procedure

DHCPv6 Service Configuration

Procedure

DHCPv6 Service Creation

DHCPv6 Server Parameter Configuration

DHCPv6 Client Parameter Configuration

DHCPv6 Profile Configuration

Associate DHCPv6 Configuration

DHCPv6 Service Configuration Verification

Procedure

Configuring the System as a Standalone PMIP P-GW in an LTE-SAE Network

Information Required

Required Local Context Configuration Information

Required P-GW Context Configuration Information

Required PDN Context Configuration Information

Required AAA Context Configuration Information

How This Configuration Works

P-MIP P-GW (LTE) Configuration

Procedure

Initial Configuration

Procedure

Modifying the Local Context

Creating and Configuring a P-MIP P-GW Context

Creating and Configuring APNs in the P-GW Context

Creating and Configuring AAA Groups in the P-GW Context

Creating and Configuring an LMA Service

Creating a P-GW PDN Context

P-GW Service Configuration

Procedure

Configuring the P-GW Service

Configuring a Static IP Route

P-GW PDN Context Configuration

Active Charging Service Configuration

AAA and Policy Configuration

Procedure

Creating and Configuring the AAA Context

Configuring QCI-QoS Mapping

Verifying and Saving the Configuration

Configuring the System as a Standalone PMIP P-GW Supporting an eHRPD Network

Information Required

Required Local Context Configuration Information