# P-GW Changes in Release 14.0

This chapter identifies features and functionality added to, modified for, or deprecated from 14.0 P-GW software releases.
Topics covered in this chapter are:

- Omissions and Corrections
- P-GW Feature Changes as of May 31, 2013
- P-GW Command Changes as of May 31, 2013
- P-GW Performance Indicator Changes as of May 31, 2013
- P-GW Feature Changes as of January 31, 2013
- P-GW Configuration Management Changes as of January 31, 2013
- P-GW Performance Management Changes as of January 31, 2013
- P-GW Security Management Changes as of January 31, 2013
- P-GW Feature Changes as of November 30, 2012
- P-GW Configuration Management Changes as of November 30, 2012
- P-GW Performance Management Changes as of November 30, 2012
- P-GW Security Management Changes as of November 30, 2012
- P-GW Feature Changes as of November 7, 2012
- P-GW Configuration Management Changes as of November 7, 2012
- P-GW Performance Management Changes as of November 7, 2012
- P-GW Security Management Changes as of November 7, 2012
- P-GW Feature Changes as of August 17, 2012
- P-GW Configuration Management Changes as of August 17, 2012
- P-GW Performance Management Changes as of August 17, 2012
- P-GW Security Management Changes as of August 17, 2012
- P-GW Feature Changes as of July 31, 2012
- P-GW Configuration Management Changes as of July 31, 2012
- P-GW Performance Management Changes as of July 31, 2012
- P-GW Security Management Changes as of July 31, 2012
- P-GW Feature Changes as of June 29, 2012
- P-GW Configuration Management Changes as of June 29, 2012
- P-GW Performance Management Changes as of June 29, 2012
- P-GW Security Management Changes as of June 29, 2012

IMPORTANT:

Enhancements to Diameter, GTPP, and RADIUS in release 14.0 are located in the Accounting Management Changes chapter.

Enhancements to SNMP MIB in release 14.0 are located in the SNMP MIB Changes chapter.

Enhancements to Web Element Manager (WEM) in release 14.0 are located in the Web Element Manager Changes chapter.

Omissions and Corrections

The following lists of items link to changes found in a previous code drop that were omitted from the Release Change Reference or to technical corrections made to previously published content.

Omissions from/Corrections to June 29, 2012 Content

- Closed Subscriber Groups Support
- DHCPv6 Support
- network-behind-mobile

P-GW Feature Changes as of May 31, 2013

This section provides information on P-GW feature changes in release 14.0.

IMPORTANT:

For more information regarding features in this section, refer to the Packet Data Network Gateway Administration Guide for this release.

New P-GW Features

This section identifies new P-GW features available in release 14.0.

Acceptance of New QoS Value in MBR

Previous Behavior: The P-GW would only accept QoS values from the PCRF. When the PCRF is unreachable and the P-GW receives an upgraded QoS sent in the modify bearer command, this new QoS is ignored.

New Behavior: A new P-GW CLI command has been introduced to control this behavior. By default, the P-GW will continue to only accept the QoS value (Default-Bearer-QoS and/or APN-AMBR) from the PCRF. The P-GW will store the PCRF-authorized QoS value and use it should the PCRF become unreachable.

When the new CLI is configured and the PCRF becomes unreachable, the P-GW shall accept a new QoS update in the modify bearer command.

The egtp CLI command has been modified to control this new functionality.

New Universal Software PID License

Universal card types (UMIO and UDPC) are now supported in this release for the ASR 5500 platform. A special license that contains the correct number of universal cards must be purchased and installed on the system. With this license UMIOs and UDPCs can also be added to an ASR 5500 chassis that was previously equipped with MIOs and DPCs. Refer to the latest version of the ASR 5500 Installation Guide for descriptions of UMIO cards and UDPCs.

For information on licensing requirements, contact your Cisco account representative.

Modified P-GW Features

This section identifies P-GW features modified in release 14.0.

Gx-returned Charging Characteristics support at GGSN

Previous Behavior: Before this change, Gx-returned Charging Characteristics were accepted by default. There was no CLI control to enable or disable this functionality. By default, if Gx-Returned Charging Characteristics had profile index bits as zero, those bits were replaced with default profile index value 8.

New Behavior: After the CLI enhancement, Gx-returned Charging Characteristics are under CLI control and by default this functionality is disabled.

Lawful Intercept Provisioning

Previous Behavior: If a session is intercepted through both active-only and camp-on trigger, the provisioning behavior was inconsistent based on the order in which active-only and camp-on triggers were configured.

The previous behavior prevented provisioning of camp-on and active-only intercepts for the same session and displayed an error message regardless of the order of configuring intercepts.

New Behavior: If active-only intercept provisioning is attempted after camp-on for a session, the CLI displays a success message but active-only intercept is silently ignored.

If camp-on intercept provisioning is attempted after active-only intercept for a session, it is incorrectly provisioned along with camp-on.

QoS Upgraded on P-GW Without PCRF Messaging After 3G to 4G Handover

Previous Behavior: When PCRF is not reachable, QoS requested in Modify Bearer Command (MBC) shall be accepted.

New Behavior: When PCRF is not reachable and new CLI is configurd, P-GW shall ignore any new QoS update request and retain the old authorized QoS value.

The egtp CLI command has been modified to control this new functionality.

RADIUS-returned Charging Characteristics Support

Previous Behavior: Before this change, if the Radius-returned Charging Characteristic value was zero, by default it used to be replaced with CC value 8.

New Behavior: After the CLI enhancement with the keyword accept-invalid, the system will accept Radius-returned CC values always without change, however the default behavior would remain as earlier Gx-returned Charging Characteristics are under CLI control and by default this functionality is disabled.

IMPORTANT:

In case the Radius-returned is configured with accept-invalid, then if the Radius-returned CC value is with profile index as zero, this zero is replaced with the default value as 8, otherwise CC is used as received from the RADIUS server.

P-GW Command Changes as of May 31, 2013

This section provides information on P-GW configuration command changes in release 14.0.

IMPORTANT:

For more information regarding commands in this section, refer to the Command Line Interface Reference for this release.

New P-GW Commands

This section identifies new P-GW commands available in release 14.0.

None for this release.

Modified P-GW Commands

This section identifies modified P-GW commands available in release 14.0.

cc-sgsn

This command specifies the source for charging characteristics (CC) - those configured locally or those received from the SGSN.

With the enhancement in this command by adding Gx-returned keyword, the Gx returned charging characteristics have now become CLI controlled and now-onwards this functionality is disabled by default.

    config

       context context_name

          apn  apn_name

             cc-sgsn { use-GGSN
    behavior bits profile index[ 0...15 ] [ radius-returned {  { accept-invalid | replace-invalid } ] | [ gx-returned { accept-invalid | replace-invalid } ] }no cc-sgsn { { radius-returned | home-subscriber-use-GGSN | roaming-subscriber-use-GGSN | visiting-subscriber-use-GGSN } + | [ use-GGSN ] [ radius-returned { accept-invalid | replace-invalid } ] | [ gx-returned { accept-invalid | replace-invalid } ] }

If Gx-returned with accept-invalid is configured, then even if PCRF-returned CC value has charging profile index as zero, same is be used for further processing. However, if Gx-returned is configured with replace-invalid then if PCRF-returned charging characteristic is received with profile index as zero, zero value will be replace with default value of 8. Otherwise Charging Characteristics would be used as received from PCRF.

egtp modify-bearer-cmd-negotiate-qos

This command controls whether the P-GW will use the stored PCRF-authorized QoS value (default), or accept a new QoS value from the modify bearer command, should the PCRF become unreachable.

    config

       context context_name

          pgw-service  service_name

             egtp modify-bearer-cmd-negotiate-qos

             [ default | no ] egtp
    modify-bearer-cmd-negotiate-qos

             end

The modify-bearer-cmd-negotiate-qos keyword configures the P-GW to accept the new QoS value from the modify bearer command while the PCRF is unreachable.

no modify-bearer-cmd-negotiate-qos returns the configuration to its default, where the P-GW ignores the new QoS value in the modify bearer command.

P-GW Performance Indicator Changes as of May 31, 2013

This section provides information on P-GW performance indicator changes in release 14.0.

IMPORTANT:

For more information regarding bulk statistics and output fields and counters in this section, refer to the Statistics and Counters Reference for this release.

New P-GW Bulk Statistics

This section identifies new P-GW bulk statistics available in release 14.0.

None for this release.

Modified P-GW Bulk Statistics

This section identifies P-GW bulk statistics modified in release 14.0.

None for this release.

Deprecated P-GW Bulk Statistics

This section identifies deprecated P-GW bulk statistics that are no longer supported in release 14.0.

None for this release.

New P-GW Output Fields and Counters

This section identifies new P-GW show command output fields and counters available in release 14.0.

None for this release.

Modified P-GW Output Fields and Counters

This section identifies modified P-GW show command output fields and counters available in release 14.0.

show pgw-service all

The following output field has been added to the show pgw-service all command to display the configuration of egtp modify-bearer-cmd-negotiate-qos , either Enabled or Disabled (default).

- EGTP Modify berarer cmd negotiate qos

Deprecated P-GW Output Fields and Counters

This section identifies deprecated P-GW output fields and counters that are no longer supported in release 14.0.

None for this release.

P-GW Feature Changes as of January 31, 2013

This section provides information on P-GW feature changes in release 14.0.

IMPORTANT:

For more information regarding features in this section, refer to the Packet Data Network Gateway Administration Guide for this release.

New P-GW Features

This section identifies new P-GW features available in release 14.0.

None for this release.

Modified P-GW Features

This section identifies P-GW features modified in release 14.0. There are two kinds of modified features: enhancements and behavior changes. Enhancements are feature changes based on customer change requests. Behavior changes are feature changes that modify an existing behavior and may result from software error corrections (bug fixes).

Discrepancy in P-GW Service Statistics

Previous Behavior: Previously, P-GW sessions released by S4 SGSN were also counted as PDNs released by MME.

New Behavior: Now, a distinction is made based on the access technology of the session to identify PDN sessions released by MME (4G) or S4 SGSN (2G & 3G), and appropriate counters are incremented.

Refer to the P-GW Schema in the New P-GW Bulk Statistics section in this chapter for additional information.

Refer to the show pgw-service statistics all command in the Modified P-GW Performance Commands section in this chapter for additional information.

P-GW Configuration Management Changes as of January 31, 2013

This section provides information on P-GW configuration command changes in release 14.0.

IMPORTANT:

For more information regarding commands in this section, refer to the Command Line Interface Reference for this release.

New P-GW Configuration Commands

This section identifies new P-GW configuration commands available in release 14.0.

None for this release.

Modified P-GW Configuration Commands

This section identifies P-GW configuration commands modified in release 14.0.

gtpu test echo

This command includes a new optional keyword to specify the GTP-U version in which the test echo will be sent.

Exec Mode

    gtpu test echo gtpu-service service_name { all | peer-address ip_address } [ gtpu-version { 0 | 1 } ]

For more information regarding the gtpu test echo command, refer to the Exec Mode Commands (D-S) chapter of the Command Line Interface Reference.

path-failure clear-trap

This command includes a new keyword to configure the trigger for clearing the path failure trap.

GTP-U Service Configuration Mode

    path-failure clear-trap
    gtp echo

    [ default | no ] path-failure
    clear-trap

For more information regarding the path-failure clear-trap command, refer to the GTP-U Service Configuration Mode Commands chapter of the Command Line Interface Reference.

Deprecated P-GW Configuration Commands

This section identifies deprecated P-GW configuration commands that are no longer supported in release 14.0.

None for this release.

P-GW Performance Management Changes as of January 31, 2013

This section provides information on P-GW performance management changes in release 14.0.

IMPORTANT:

For more information regarding bulk statistics in this section, refer to the Statistics and Counters Reference for this release.

For more information regarding commands in this section, refer to the Command Line Interface Reference for this release.

New P-GW Bulk Statistics

This section identifies new P-GW bulk statistics available in release 14.0.

The following bulk statistics are new in this release:

P-GW Schema

- sessstat-bearrel-nwdefs4sgsn

Modified P-GW Bulk Statistics

This section identifies P-GW bulk statistics modified in release 14.0.

The data type for the following bulk statistics changed from Int32 to Int64:

APN Schema

- qci1-actbear
- qci1-setupbear
- qci1-relbear
- qci2-actbear
- qci2-setupbear
- qci2-relbear
- qci3-actbear
- qci3-setupbear
- qci3-relbear
- qci4-actbear
- qci4-setupbear
- qci4-relbear
- qci5-actbear
- qci5-setupbear
- qci5-relbear
- qci6-actbear
- qci6-setupbear
- qci6-relbear
- qci7-actbear
- qci7-setupbear
- qci7-relbear
- qci8-actbear
- qci8-setupbear
- qci8-relbear
- qci9-actbear
- qci19setupbear
- qci9-relbear

The data type for various GTP-C bulk statistics changed from Int64 to Int32 in this release.

GTP-C Schema

Deprecated P-GW Bulk Statistics

This section identifies deprecated P-GW bulk statistics that are no longer supported in release 14.0.

None for this release.

New P-GW Performance Commands

This section identifies new P-GW performance commands available in release 14.0.

None for this release.

Modified P-GW Performance Commands

This section identifies P-GW performance commands modified in release 14.0.

show gtpu-service

A new output field, Path Failure Clear Trap, has been added to the following commands. This field displays the configuration of the GTP-U Service path-failure clear-trap command.

Exec Mode

    show gtpu-service allshow gtpu-service name service-name

show pgw-service

A new output field, S4 SGSN initiated release, has been added to this command. This field displays the total number of dedicated bearers released due to an S4-SGSN-initiated release using the P-GW node.

Exec Mode

    show pgw-service statistics all

Deprecated P-GW Performance Commands

This section identifies deprecated P-GW performance commands that are no longer supported in release 14.0.

None for this release.

P-GW Security Management Changes as of January 31, 2013

This section provides information on P-GW security management changes in release 14.0.

None for this release.

P-GW Feature Changes as of November 30, 2012

This section provides information on P-GW feature changes in release 14.0.

None for this release.

P-GW Configuration Management Changes as of November 30, 2012

This section provides information on P-GW configuration command changes in release 14.0.

None for this release.

P-GW Performance Management Changes as of November 30, 2012

This section provides information on P-GW performance management changes in release 14.0.

IMPORTANT:

For more information regarding bulk statistics in this section, refer to the Statistics and Counters Reference for this release.

For more information regarding commands in this section, refer to the Command Line Interface Reference for this release.

New P-GW Bulk Statistics

This section identifies new P-GW bulk statistics available in release 14.0.

None for this release.

Modified P-GW Bulk Statistics

This section identifies P-GW bulk statistics modified in release 14.0.

None for this release.

Deprecated P-GW Bulk Statistics

This section identifies deprecated P-GW bulk statistics that are no longer supported in release 14.0.

None for this release.

New P-GW Performance Commands

This section identifies new P-GW performance commands available in release 14.0.

None for this release.

Modified P-GW Performance Commands

This section identifies P-GW performance commands modified in release 14.0.

show apn statistics

The description has changed for the output field Current APN context load.

Previous Behavior: The current percent utilization of the APN as function of the APN’s configured maximum number of supported PDP contexts and the current total number of PDP contexts facilitated by the APN.

New Behavior: Current APN context load = (current contexts (selected APN(s)) / current contexts (system wide) ) * 100.

Exec Mode

    show apn statistics name

Deprecated P-GW Performance Commands

This section identifies deprecated P-GW performance commands that are no longer supported in release 14.0.

None for this release.

P-GW Security Management Changes as of November 30, 2012

This section provides information on P-GW security management changes in release 14.0.

None for this release.

P-GW Feature Changes as of November 7, 2012

This section provides information on P-GW feature changes in release 14.0.

None for this release.

P-GW Configuration Management Changes as of November 7, 2012

This section provides information on P-GW configuration command changes in release 14.0.

None for this release.

P-GW Performance Management Changes as of November 7, 2012

This section provides information on P-GW performance management changes in release 14.0.

IMPORTANT:

For more information regarding bulk statistics in this section, refer to the Statistics and Counters Reference for this release.

For more information regarding commands in this section, refer to the Command Line Interface Reference for this release.

New P-GW Bulk Statistics

This section identifies new P-GW bulk statistics available in release 14.0.

None for this release.

Modified P-GW Bulk Statistics

This section identifies P-GW bulk statistics modified in release 14.0.

The data type for various GTP-C bulk statistics changed from Int32 to Int64 in this release.

GTP-C Schema

Deprecated P-GW Bulk Statistics

This section identifies deprecated P-GW bulk statistics that are no longer supported in release 14.0.

None for this release.

New P-GW Performance Commands

This section identifies new P-GW performance commands available in release 14.0.

None for this release.

Modified P-GW Performance Commands

This section identifies P-GW performance commands modified in release 14.0.

None for this release.

Deprecated P-GW Performance Commands

This section identifies deprecated P-GW performance commands that are no longer supported in release 14.0.

None for this release.

P-GW Security Management Changes as of November 7, 2012

This section provides information on P-GW security management changes in release 14.0.

None for this release.

P-GW Feature Changes as of August 17, 2012

This section provides information on P-GW feature changes in release 14.0.

None for this release.

P-GW Configuration Management Changes as of August 17, 2012

This section provides information on P-GW configuration command changes in release 14.0.

None for this release.

P-GW Performance Management Changes as of August 17, 2012

This section provides information on P-GW performance management changes in release 14.0.

IMPORTANT:

For more information regarding bulk statistics in this section, refer to the Statistics and Counters Reference for this release.

For more information regarding commands in this section, refer to the Command Line Interface Reference for this release.

New P-GW Bulk Statistics

This section identifies new P-GW bulk statistics available in release 14.0.

None for this release.

Modified P-GW Bulk Statistics

This section identifies P-GW bulk statistics modified in release 14.0.

The data type for the following bulk statistics changed from Int32 to Int64:

APN Schema

- uplnk-pkts
- dnlnk-pkts
- qci1-uplinkpkt-fwd
- qci1-dwlinkpkt-fwd
- qci2-uplinkpkt-fwd
- qci2-dwlinkpkt-fwd
- qci3-uplinkpkt-fwd
- qci3-dwlinkpkt-fwd
- qci4-uplinkpkt-fwd
- qci4-dwlinkpkt-fwd
- qci5-uplinkpkt-fwd
- qci5-dwlinkpkt-fwd
- qci6-uplinkpkt-fwd
- qci6-dwlinkpkt-fwd
- qci7-uplinkpkt-fwd
- qci7-dwlinkpkt-fwd
- qci8-uplinkpkt-fwd
- qci8-dwlinkpkt-fwd
- qci9-uplinkpkt-fwd
- qci9-dwlinkpkt-fwd
- nonstdqci-nongbr-uplinkpkt-fwd
- nonstdqci-nongbr-dwlinkpkt-fwd
- nonstdqci-gbr-uplinkpkt-fwd
- nonstdqci-gbr-dwlinkpkt-fwd

Deprecated P-GW Bulk Statistics

This section identifies deprecated P-GW bulk statistics that are no longer supported in release 14.0.

None for this release.

New P-GW Performance Commands

This section identifies new P-GW performance commands available in release 14.0.

None for this release.

Modified P-GW Performance Commands

This section identifies P-GW performance commands modified in release 14.0.

None for this release.

Deprecated P-GW Performance Commands

This section identifies deprecated P-GW performance commands that are no longer supported in release 14.0.

None for this release.

P-GW Security Management Changes as of August 17, 2012

This section provides information on P-GW security management changes in release 14.0.

None for this release.

P-GW Feature Changes as of July 31, 2012

This section provides information on P-GW feature changes in release 14.0.

None for this release.

P-GW Configuration Management Changes as of July 31, 2012

This section provides information on P-GW configuration command changes in release 14.0.

None for this release.

P-GW Performance Management Changes as of July 31, 2012

This section provides information on P-GW performance management changes in release 14.0.

IMPORTANT:

For more information regarding bulk statistics in this section, refer to the Statistics and Counters Reference for this release.

For more information regarding commands in this section, refer to the Command Line Interface Reference for this release.

New P-GW Bulk Statistics

This section identifies new P-GW bulk statistics available in release 14.0.

None for this release.

Modified P-GW Bulk Statistics

This section identifies P-GW bulk statistics modified in release 14.0.

None for this release.

Deprecated P-GW Bulk Statistics

This section identifies deprecated P-GW bulk statistics that are no longer supported in release 14.0.

None for this release.

New P-GW Performance Commands

This section identifies new P-GW performance commands available in release 14.0.

None for this release.

Modified P-GW Performance Commands

This section identifies P-GW performance commands modified in release 14.0.

show apn counters

Previous Behavior: IP allocation counters per APN IPv4 only.

New Behavior: IPv4 allocation counters + IPv6 allocation counters per APN.

Exec Mode

    show apn counters ip-allocation all

show apn statistics

The following fields have been added to the output of this command:

- Total IPv6 addrs allocated: Local pool add assign
- Total IPv6 addrs allocated: Static addr assign
- Total IPv6 addrs allocated: aaa provided addr
- Total IPv6 addrs allocated: skipped ip validation for L3 tunnels
- Total IPv6 addrs allocated: DHCPv6 proxy assign
- Total IPv6 addrs allocated: No allocation

Exec Mode

    show apn statistics
    name apn_name

show pgw-service

The following fields have been added to the output of this command under the “Total IPv6 addrs allocated” field:

- Local pool add assign
- Static addr assign
- Radius provided addr assign

Exec Mode

    show pgw-service statistics all

show subscribers pgw-only all

Previous Behavior: “Addr Type” field displayed all possible values for IPv4 (Local/AAA/DHCP), but only Local for IPv6.

New Behavior: Both IPv4 and IPv6 display all possible values (Local/AAA/DHCP) in “Addr Type” field.

Exec Mode

    show subscribers pgw-only all

show subscribers pgw-only full

The following field has been added to the output of this command to display the IPv6 allocation type:

- IPv6 allocation type

Exec Mode

    show subscribers pgw-only full

Deprecated P-GW Performance Commands

This section identifies deprecated P-GW performance commands that are no longer supported in release 14.0.

None for this release.

P-GW Security Management Changes as of July 31, 2012

This section provides information on P-GW security management changes in release 14.0.

None for this release.

P-GW Feature Changes as of June 29, 2012

This section provides information on P-GW feature changes in release 14.0.

IMPORTANT:

For more information regarding features in this section, refer to the Packet Data Network Gateway Administration Guide for this release.

New P-GW Features

This section identifies new P-GW features available in release 14.0.

CDR Push Supported

A new CLI command has been added to enable sending local CDR files to a remote host. When enabled, the CDR files under the GTPP group will be sent to the configured remote system.

Refer to the gtpp storage-server local file command in the Modified P-GW Configuration Commands section in this chapter for additional information.

Closed Subscriber Groups Support

Corrected Content: This section includes corrections to previously published content. The name of this new feature in the previously published content was Closed Subscriber Group.

The P-GW does not currently support Closed Subscriber Groups (CSG) Information Elements (IEs) and Call Detail Record (PGW-CDR that includes a CSG record). Refer to Closed Subscriber Group in the MME Administration Guide for more information about this feature.

Collision Handling for MBR, UBR, CBR Procedures

The collision scenario while performing Modify-Bearer-Request, Update-Bearer-Request, and Create-Bearer-Request procedures occur as follows. A UE which has exhausted its quota is trying to attach. P-GW will send the PCRF a CCR-I. PCRF sends back CCR-A. P-GW sends back Create-Session-Response. PCRF will obtain the quota from the Balance Manager and find that it is exhausted. PCRF will immediately initiate an RAR with new quota to inform P-GW about the exhausted condition. P-GW initiates Update-Bearer-Request. At S-GW, the S1-U has not moved to connected state yet. S-GW forwards Update-Bearer-Request to MME. MMEs in the network have been modified to support this scenario by suspending Update-Bearer-Request processing for a while and sending Modify-Bearer-Req to S-GW. This causes the collision at the S-GW.

With this feature, the S-GW rejects Update-Bearer-Request from the P-GW if S1-U is not connected. When the P-GW receives a negative Update-Bearer-Response, it starts a timer. After timer expiry, it informs the PCRF about the transient failure. PCRF sends RAR with the quota again. This time Update-Bearer-Request will succeed.

Refer to the egtp command in the New P-GW Configuration Commands section in this chapter for additional information.

DHCPv6 Support

Corrected Content: This section includes corrections to previously published content. Additional feature details have been added.

The Dynamic Host Configuration Protocol (DHCP) for IPv6 enables the DHCP servers to pass the configuration parameters, such as IPv6 network addresses to IPv6 nodes. It offers the capability of allocating the reusable network addresses and additional configuration functionality automatically.

The DHCPv6 support does not just feature the address allocation, but also fulfills the requirements of Network Layer IP parameters. Apart from these canonical usage modes, DHCPv6's Prefix-Delegation (DHCP-PD) has also been standardized by 3GPP (Rel 10) for “network-behind-ue” scenarios. P-GW manages IPv6 prefix life-cycle just like it manages IPv4 addresses, thus it is responsible for allocation, renew, and release of these prefixes during the lifetime of a call. IPv6 prefixes may be obtained from either local-pool, AAA (RADIUS/DIAMETER), or external DHCPv6 servers. Stateless DHCPv6 procedures are used to supply higher layer IP parameters to the end host.

DHCPv6 support for P-GW covers the following requirements:

- RFC 3633, prefix delegation and Stateless services (primarily via the INFORMATION-REQUEST) mechanism
- RFC 2132, DHCP Options and BOOTP Vendor Extensions
- RFC 4039, Rapid Commit Support

This feature encompasses a number of CLI command changes. Refer to the New, Modified, and Deprecated P-GW Configuration Commands sections in this chapter for additional information.

Dual-stack IP Addresses

This feature adds support for dual stack user layer and the dual address bearer flag on the Gn interface on the GGSN/P-GW. During inter-RAT mobility between 4G and 3G/2G, an EPS bearer with PDN type IPv4v6 is mapped one-to-one to PDP type IPv4v6.

Dynamic GTP Echo Timer

The dynamic echo timer has been added in this release to enable the eGTP and GTP-U services to better manage GTP paths during network congestion. As opposed to the default echo timer which uses fixed intervals and retransmission timers, the dynamic echo timer uses a calculated round trip timer (RTT) that is generated once a full request/response procedure has completed. A multiplier can be added to the calculation for additional support during congestion periods.

This feature encompasses a number of CLI command changes. Refer to the New, Modified, and Deprecated P-GW Configuration Commands sections in this chapter for additional information.

Fair Usage Policy per Subscriber

This feature provides mechanisms to define and enforce Fair Usage Policy (FUP) per subscriber. It is also known as Service-Group QoS.

This feature introduces:

- Support for PCRF specified volume usage monitoring key for qos-group-of-ruledefs, and PCRF specified flow-gating for qos-group-of-ruledefs.
- It provides a way to define a Service-Group construct that may include unrelated services defined on the ASR5x00.
- It provides a mechanism to dynamically install, and remove, pre-defined Service-Groups for a subscriber over Gx.
- It provides a way to dynamically set and change QoS parameters of a Service-Group for a subscriber over Gx using CCA and RAR messages.
- QoS parameters of a Service-Group are: Flow-Status, Flow-Rate and Volume threshold.
- It allows the application of flow-rate (maximum bit rate and burst size) to a packet flow progressively at Service and Service-Group levels by DSCP marking the packets.
- Flow status gating can block, allow or redirect packets.
- It provides the ability to monitor the volume usage of a Group-of-Services. Multiple Group-of-Services can share a volume quota.
- It allows sharing configured volume threshold of a Service-Group across all services in that group. This sharing is dynamic, which means no predefined quota will be allocated per service in a Service-Group.
- Finally, it allows notification to a PCRF in a CCR-U message when volume threshold for a Group-of-Services is crossed.

For more information regarding the Service-Group QOS Support feature, refer to the New ECS Features section in the ECS Changes in Release 14.0 chapter.

IPv4 Transport Supported on S2a Interface (PMIPv6)

P-GW supports PMIPv6 over an IPv4 transport.

MSISDN Support in Gx (PMIP-PGW)

PMIP P-GW now supports receiving MSISDN in the PBU over S2a interface and making MSISDN available over Gx/Gy/Billing/LI; MSISDN is available on the same interface as when it is received over GTP interface.

Refer to the mobility-option-type-value command in the Modified P-GW Configuration Commands section in this chapter for additional information.

PCO-Based P-CSCF Address Discovery

One of the methods available to a UE to obtain the P-CSCF address(es) is by P-CSCF discovery request and provisioning of P-CSCF address(es) in the Protocol Configuration Options (PCO) IE in the session management procedures. This method is based on configuration of the potential P-CSCF addresses in the GGSN or P-GW.

This feature introduces a 128-entry table in the P-GW with one primary and one secondary P-CSCF address in each entry. For the PCO-based P-CSCF discovery method, an entry from this table will be returned to the UE. Entries are served in round robin fashion. If the same address pair is repeatedly configured in multiple entries in the table, it accomplishes the same effect as assigning a weight to that address pair. P-CSCFs will be served traffic in proportion to the number of entries in which their address appears.

Modified P-GW Features

This section identifies P-GW features modified in release 14.0. There are two kinds of modified features: enhancements and behavior changes. Enhancements are feature changes based on customer change requests. Behavior changes are feature changes that modify an existing behavior and may result from software error corrections (bug fixes).

APN Enhancement

Support for 2048 APNs and Virtual APNs per chassis.

Previous Behavior: Up to 1024 APNs can be configured in the P-GW.

New Behavior: Up to 2048 APNs can be configured in the P-GW.

CC Value “0F00” Sent from PCRF Mapped Incorrectly to Gy, Gz

Previous Behavior: When PCRF sent CC value “0F00” in the CCA-I, it was mapped incorrectly to Gy/Gz.

New Behavior: P-GW now accepts CC value containing A-F hex values from PCRF. CC value received from PCRF is transparently mapped to PGW-CDRs and other interfaces.

CCR-U with Volume Report

Previous Behavior: When volume report was sent while usage monitoring was still active, the system continued with existing thresholds configured.

New Behavior: When volume report is sent while usage monitoring is still active, the threshold is set to infinite until response is received from PCRF.

Gx Monitoring Key

Previous Behavior: Insignificant zeroes in the monitoring key are stripped off while encoding/decoding it over Gx.

New Behavior: Insignificant zeroes are not stripped off while encoding/decoding the monitoring key AVP over Gx.

Gx Session Sync Up Using Revalidation-Timeout AVP

PCEF(P-GW) shall sync up Gx session with PCRF using Revalidation-Timeout AVP.

PCRF shall arm/subscribe Event-Trigger (REVALIDATION_TIMEOUT, 22) to PCEF (P-GW) and provide Revalidation-Time AVP.

P-GW shall request policy update by sending Credit-Control-Request Update when revalidation time expires.

IMSA Flow Description

Previous Behavior: When flow descriptions of protocol 50 were installed in dynamic rules, PCEF rejected rule installation.

New Behavior: Rules with flow descriptions of protocol 50 now supported in PCEF and such rules are successfully installed.

IMSA SGx Module Implementations

Previous Behavior 1: When call is cleared, CCR-U was sent for each bearer with bearer-operation as TERMINATION and CCR-T sent for last bearer (with bearer-id/bearer-op AVPs).

New Behavior 1: While clearing the call, CCR-Us won't be sent to PCRF for secondary bearers. Only single CCR-T will be sent without bearer-id.

Previous Behavior 2: IMSA used to detect immediate failure before sending RAA, like unknown_bearer_id, rule-failures.

New Behavior 2: RAA will always be sent with success. Another CCR-U will be generated to report failures and rule(s) status.

Previous Behavior 3: A few statistics were printed at IMSA session (bearer level).

New Behavior 3: Statistics now printed at control session level (subscriber level).

IP Pool Optimization

This feature allows utilizing a smaller IP pool internally, but advertising a larger IP pool on external routes.

Previous Behavior: IP pool code generates the pool route, based on the IP pool range.

New Behavior: A new pool-route option has been added to the ip pool command to support this feature. When IP pool route is configured, the default fragments are not generated/installed, rather pool route based fragment would be created and installed in the kernel as a route.

Refer to the ip pool command in the Modified P-GW Configuration Commands section in this chapter for additional information.

L2TP Tunneling Enhancement

The following scenarios have been confirmed:

- Overlapping IP addresses inside an L2TP tunnel are supported; operators allowed to not define local IP pools in case of L2TP tunneling in conjunction with a specific APN.
- Multiple L2TP tunneling destinations and tunnel load balancing supported.

S6b

Previous Behavior: Auth-App-Id was sent as 16777999 under CER/AAA messages for S6b-standard, as well as S6b-Custom dictionary.

New Behavior: Auth-App-Id will be sent as 16777272 for s6b-standard dictionary.

Usage Report Sent During RAT-Change

When an Inter-RAT handover happens, P-GW shall send CCR (UPDATE_REQUEST) to PCRF with Event-Trigger AVP setting to USAGE_REPORT and RAT_CHANGE together with Usage-Monitoring-Information.

CLI command event-update has been expanded to customize sending of Usage-Monitoring-Information based on specific event triggers.

P-GW Configuration Management Changes as of June 29, 2012

This section provides information on P-GW configuration command changes in release 14.0.

IMPORTANT:

For more information regarding commands in this section, refer to the Command Line Interface Reference for this release.

New P-GW Configuration Commands

This section identifies new P-GW commands available in release 14.0.

bind

This command has been added to support DHCPv6 Support.

DHCPv6 Service Configuration Mode

    bind address ipv6_address [ port port_number ]

    no bind address

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the bind command, refer to the DHCPv6 Service Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

client-identifier

This command has been added to support DHCPv6 Support.

DHCP Client Profile Configuration Mode

    client-identifier { imsi | msisdn }

    default dhcp client-identifier

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the client-identifier command, refer to the DHCP Client Profile Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

deadtime

This command has been added to support DHCPv6 Support.

DHCPv6 Service Configuration Mode

    deadtime max_time

    default deadtime

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the deadtime command, refer to the DHCPv6 Service Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

detect-dead-server

This command has been added to support DHCPv6 Support.

DHCPv6 Service Configuration Mode

    detect-dead-server consecutive-failures max_number

    default detect-dead-server
    consecutive-failures

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the detect-dead-server command, refer to the DHCPv6 Service Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

dhcp-client-profile

This command has been added to support the DHCPv6 Support feature.
Context Configuration Mode

    [ no ] dhcp-client-profile clnt_profile_name [ -noconfirm ]

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the dhcp-client-profile command, refer to the DHCPv6 Server Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

dhcp parameter-request-list-option

This command enables/disables the sending of DHCP parameter request list option(s) in all outgoing messages for a subscriber.
Subscriber Configuration Mode

    [ no ] dhcp
    parameter-request-list-option [ options ]

dhcp-server-profile

This command has been added to support the DHCPv6 Support feature.
Context Configuration Mode

    [ no ] dhcp-server-profile srvr_profile_name [ -noconfirm ]

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the dhcp-server-profile command, refer to the DHCPv6 Server Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

dhcpv6-client

This command has been added to support DHCPv6 Support.

DHCPv6 Service Configuration Mode

    dhcpv6-client

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the dhcpv6-client command, refer to the DHCPv6 Service Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

dhcpv6 context-name

This command has been added to support the DHCPv6 Support feature.
APN Configuration Mode

    dhcpv6 context-name ctxt_name

    [ no] dhcpv6
    context-name

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the dhcpv6 context-name command, refer to the DHCPv6 Server Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

dhcpv6-server

This command has been added to support DHCPv6 Support.

DHCPv6 Service Configuration Mode

    dhcpv6-server

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the dhcpv6-server command, refer to the DHCPv6 Service Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

dhcpv6-server-preference

This command has been added to support DHCPv6 Support.

DHCP Server Profile Configuration Mode

    dhcpv6-server-preference pref_value

    default dhcpv6-server-preference

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the dhcpv6-server-preference command, refer to the DHCP Server Profile Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

dhcpv6-service

This command has been added to create the DHCPv6 service to support the DHCPv6 Support feature.
Context Configuration Mode

    [ no ] dhcpv6-service service_name [ -noconfirm ]

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the dhcpv6-service command, refer to the DHCPv6 Server Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

dhcpv6 service-name

This command has been added to support the DHCPv6 feature.
APN Configuration Mode

    [ no ] dhcpv6 service-name svc_name

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the dhcpv6 service-name command, refer to the DHCPv6 Server Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

disable

This command has been added to support DHCPv6 Support.

DHCP Client Profile Configuration Mode

    disable { dhcp-message-spray | rapid-commit-dhcpv4 | rapid-commit-dhcpv6 }

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the disable command, refer to the DHCP Client Profile Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

disable

This command has been added to support DHCPv6 Support.

DHCP Server Profile Configuration Mode

    disable { dhcpv6-server-reconf | dhcpv6-server-unicast | rapid-commit-dhcpv4 | rapid-commit-dhcpv6 }

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the disable command, refer to the DHCP Server Profile Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

egtpc test echo

This command tests the ability of a GGSN/P-GW service to exchange GTP-C echo request messages with specified peer(s).

Exec Mode

    egtpc test echo gtp-version versionsrc-address ip_address { all | peer-address ip_address }

IMPORTANT:

The gtpv0 test echo and gtpc test echo commands have been replaced with this command.

enable

This command has been added to support DHCPv6 Support.

DHCP Client Profile Configuration Mode

    enable { dhcp-message-spray | rapid-commit-dhcpv4 | rapid-commit-dhcpv6 }

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the enable command, refer to the DHCP Client Profile Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

enable

This command has been added to support DHCPv6 Support.

DHCP Server Profile Configuration Mode

    enable { dhcpv6-server-reconf | dhcpv6-server-unicast | rapid-commit-dhcpv4 | rapid-commit-dhcpv6 }

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the enable command, refer to the DHCP Server Profile Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

ipv6

This command has been added to support DHCPv6 Support.

DHCPv6 Server Configuration Mode

    ipv6 nd { managed-config-flag | other-config-flag }

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the ipv6 command, refer to the DHCPv6 Server Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

ipv6 address alloc-method

This command controls the IPv6 address allocation method for a particular APN. With the support of DHCPv6 and dual PDP IPv4v6, the separate allocation methods are required for IPv4 and IPv6. Earlier, the IPv6 address was allocated through local pool or RADIUS Returned, but with the new options local, no-dynamic, and DHCPv6-proxy, the IPv6 address allocation can be done for a particular APN. The static address allocation can be enabled by the use of allow-user-specified keyword as shown in the command syntax below.

APN Configuration Mode

    ipv6 address alloc-method { dhcpv6-proxy | local | no-dynamic } [
    allow-user-specified ]

    [ default ] ipv6
    address alloc-method

max-retransmissions

This command has been added to support DHCPv6 Support.

DHCPv6 Client Configuration Mode

    max-retransmissions max_number

    default max-retransmissions

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the max-retransmissions command, refer to the DHCPv6 Client Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

network-behind-mobile

Corrected Content: This section includes corrections to previously published content. Additional feature details have been added.

This command allows enabling/disabling the Network Behind Mobile Station (NBMS) for the APN. The max-addresses-behind-mobile keyword-set configures the maximum number of addresses that are allowed in a single Network/subnet Behind MS. The valid range for the number to be configured is between 1 and 16,777,214. Keyword max-subnets specifies the maximum number of subnets that can be enabled for a call in the APN. The valid range for the number of subnets is between 1 to 16 and the default value is 10.

APN Configuration Mode

    network-behind-mobile { max-addresses-behind-mobile max_addrs | max-subnets max_subnets }

    [ default | no ] network-behind-mobile

For more information regarding the DHCPv6 Support feature which supports NBMS, refer to the New P-GW Features section in this chapter. For more information regarding the network-behind-mobile command, refer to the APN Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

preferred-lifetime

This command has been added to support DHCPv6 Support.

DHCPv6 Server Configuration Mode

    preferred-lifetime pref_lifetime

    default preferred-lifetime

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the preferred-lifetime command, refer to the DHCPv6 Server Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

process

This command has been added to support DHCPv6 Support.

DHCP Server Profile Configuration Mode

    process dhcp-option-from { AAA | LOCAL | PDN-DHCP } priority priority

    default process dhcp-option-from

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the process command, refer to the DHCP Server Profile Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

rebind-time

This command has been added to support DHCPv6 Support.

DHCPv6 Server Configuration Mode

    rebind-time rebind_time

    default rebind-time

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the rebind-time command, refer to the DHCPv6 Server Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

renew-time

This command has been added to support DHCPv6 Support.

DHCPv6 Server Configuration Mode

    renew-time renewal_time

    default renew-time

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the renew-time command, refer to the DHCPv6 Server Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

request

This command has been added to support DHCPv6 Support.

DHCP Client Profile Configuration Mode

    [ default ] request
    dhcp-option { dns-address | netbios-server-address | sip-server-address }

    no { dns-address | netbios-server-address | sip-server-address }

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the request command, refer to the DHCP Client Profile Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

server

This command has been added to support DHCPv6 Support.

DHCPv6 Service Configuration Mode

    server { ipv6_address [ priority priority ] | selection-algorithm { first-server | round-robin } }

    default server selection-algorithm

    no server ipv6_address

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the server command, refer to the DHCPv6 Service Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

server-dead-time

This command has been added to support DHCPv6 Support.

DHCPv6 Client Configuration Mode

    server-dead-time dead_time

    default server-dead-time

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the server-dead-time command, refer to the DHCPv6 Client Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

server-ipv6-address

This command has been added to support DHCPv6 Support.

DHCPv6 Client Configuration Mode

    server-ipv6-address ipv6_address [ port port_number ] [ priority priority ] [ -noconfirm ]

    no server-ipv6-address ipv6_address

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the server-ipv6-address command, refer to the DHCPv6 Client Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

server-resurrect-time

This command has been added to support DHCPv6 Support.

DHCPv6 Client Configuration Mode

    server-resurrect-time revive_time

    default server-resurrect-time

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the server-resurrect-time command, refer to the DHCPv6 Client Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

valid-lifetime

This command has been added to support DHCPv6 Support.

DHCPv6 Server Configuration Mode

    valid-lifetime valid_lifetime

    default valid-lifetime

For more information regarding the DHCPv6 Support feature, refer to the New P-GW Features section in this chapter. For more information regarding the valid-lifetime command, refer to the DHCPv6 Server Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

echo-retransmission-timeout

This command has been added to support the Dynamic GTP Echo feature.

GTP-U Service Configuration Mode

    echo-retransmission-timeout seconds

For more information regarding the Dynamic GTP Echo feature, refer to the New P-GW Features section in this chapter. For more information regarding the echo-retransmission-timeout command, refer to the GTP-U Service Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

egtp

This command configures a timer to deal with eGTP cause handling for temporary failure (cause code 110) from peer. All transactions that were moved to pending queue because of temporary cause failure would be reattempted after temporary failure timer expires.

P-GW Service Configuration Mode

    egtp cause-code temp-fail
    timeout sec retry retries

    [ default | no ] egtp
    cause-code temp-fail

For more information regarding the Collision Handling for MBR, UBR, CBR Procedures feature, refer to the New P-GW Features section in this chapter. For more information regarding the egtp command, refer to the P-GW Service Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

gtpc echo-retransmission-timeout

This command has been added to support the Dynamic GTP Echo feature.

eGTP Service Configuration Mode

    gtpc echo-retransmission-timeout seconds

For more information regarding the Dynamic GTP Echo feature, refer to the New P-GW Features section in this chapter. For more information regarding the gtpc echo-retransmission-timeout command, refer to the eGTP Service Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

Modified P-GW Configuration Commands

This section identifies P-GW commands modified in release 14.0.

echo-interval

This command has been modified to support the Dynamic GTP Echo feature. The echo-interval command now supports dynamic echo with the addition of the dynamic option. When enabled, the dynamic echo interval feature uses a calculated round trip timer (RTT) and can optionally add a configurable multiplier to be applied to the RTT result.

GTP-U Service Configuration Mode

    echo-interval seconds [ dynamic [ smooth-factor multiplier ] ]

For more information regarding the Dynamic GTP Echo feature, refer to the New P-GW Features section in this chapter. For more information regarding the echo-interval command, refer to the GTP-U Service Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

gtpc echo-interval

This command has been modified to support the Dynamic GTP Echo feature. The gtpc echo-interval command now supports dynamic echo with the addition of the dynamic option. When enabled, the dynamic echo interval feature uses a calculated round trip timer (RTT) and can optionally add a configurable multiplier to be applied to the RTT result.

GTP-U Service Configuration Mode

    gtpc echo-interval seconds [ dynamic [ smooth-factor multiplier ] ]

For more information regarding the Dynamic GTP Echo feature, refer to the New P-GW Features section in this chapter. For more information regarding the gtpc echo-interval command, refer to the GTP-U Service Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

gtpc retransmission-timeout (Behavior change)

This command has been modified to support the Dynamic GTP Echo feature.

eGTP Service Configuration Mode

    gtpc retransmission-timeout seconds

Previous Behavior: In previous releases, this command controlled the timeout for retransmitting all GTPv2 control messages including echo procedures.

New Behavior: In release 14.0, this command only configures retransmission timeouts for non-echo GTPv1 messages.

IMPORTANT:

No changes were made to the syntax of this command. All changes are embedded.

For more information regarding the Dynamic GTP Echo feature, refer to the New P-GW Features section in this chapter. For more information regarding the gtpc retransmission-timeout command, refer to the eGTP Service Configuration Mode Commands chapter of the eHRPD/LTE Command Line Interface Reference.

gtpp storage-server local file

This command now enables push method to transfer local CDR files to remote system.

GTPP Server Group Configuration Mode

    gtpp storage-server
    local filepush { encrypted-url encrypted_url | url url } [ encrypted-secondary-url encrypted_url | secondary-url url ] [ via-local-context ]

    no gtpp storage-server
    local file push

For more information regarding the CDR Push Supported feature, refer to the New P-GW Features section in this chapter. For more information regarding this command, refer to the GTPP Server Group Configuration Mode Commands chapter in the eHRPD/LTE Command Line Interface Reference.

gtpu test echo

The gtpu test echo command now exchanges GTP-U echo request messages with up to 100 peer(s) from a specified GTP-U service.

Exec Mode

    gtpu test echo gtpu-service service_name { all | peer-address ip_address }

ip pool

The keyword pool-route has been added to this command for IP pool optimization.

Context Configuration Mode

    ip poolpool_name pool-route ip_address/mask

For more information regarding the IP Pool Optimization feature, refer to the Modified P-GW Features section in this chapter. For more information regarding this command, refer to the Context Configuration Mode Commands chapter in the eHRPD/LTE Command Line Interface Reference.

mobility-option-type-value

The keyword custom2 has been added to this command for standard type values, as defined by IANA, and some customer-specific message formats.

LMA Service Configuration Mode

    mobility-option-type-value { custom1 | custom2 | standard }

    default mobility-option-type-value

Deprecated P-GW Configuration Commands

This section identifies deprecated P-GW commands that are no longer supported in release 14.0.

gtpv0 test echo

In release 14.0, this command is replaced by the egtpc test echo command.

Exec Mode

    gtpv0 test echo src-address gn_address { all | sgsn-address ip_address }

gtpc test echo

In release 14.0, this command is replaced by the egtpc test echo command.

Exec Mode

    gtpc test echo src-address gn_address { all | sgsn-address ip_address }

retransmission-timeout

In release 14.0, this command is replaced by the echo-retransmission-timeout command. Refer to the New P-GW Configuration Commands section for information on the echo-retransmission-timeout command.

GTP-U Service Configuration Mode

    retransmission-timeout seconds

P-GW Performance Management Changes as of June 29, 2012

This section provides information on P-GW performance management changes in release 14.0.

IMPORTANT:

For more information regarding bulk statistics in this section, refer to the Statistics and Counters Reference for this release.

For more information regarding commands in this section, refer to the Command Line Interface Reference for this release.

New P-GW Bulk Statistics

This section identifies new P-GW bulk statistics available in release 14.0.

The following bulk statistics are new in this release:

eGTP-C Service Schema

- un-sent-dlinknotifack
- tun-sent-dlinknotifackaccept
- tun-sent-dlinknotifackdenied
- tun-sent-retransdelinddatafwdngrsp

Modified P-GW Bulk Statistics

This section identifies P-GW bulk statistics modified in release 14.0.

None for this release.

Deprecated P-GW Bulk Statistics

This section identifies deprecated P-GW bulk statistics that are no longer supported in release 14.0.

None for this release.

New P-GW Performance Commands

This section identifies new P-GW performance commands available in release 14.0.

None for this release.

Modified P-GW Performance Commands

This section identifies P-GW performance commands modified in release 14.0.

show configuration

The enhanced CLI introduces new filter with show configuration command which displays configuration of single APN in verbose or non-verbose mode.

Exec Mode

    show configuration
    apn apn_name [ verbose ]

show gtpp group all

This command displays information pertaining to the configured GTPP storage server group.

Exec Mode
The following fields have been added to the output of this command:

- File Transfer Mode
- Push via Local Context

For more information regarding the CDR Push Supported feature, refer to the New P-GW Features section in this chapter. For more information regarding this command, refer to the Show GTPP chapter in the Statistics and Counters Reference.

show pgw-service

The following field has been added to the output of this command to specify whether the P-GW service is part of an SAEGW service:

- SAEGW service

Exec Mode

    show pgw-service all

show subscribers

The following fields have been added to the output of this command to include the correlation and accounting session id:

- Acct-session-id
- ThreeGPP2-correlation-id

Exec Mode

    show subscribers pgw-only full

show subscribers

The following fields have been added to the output of this command to support receiving framed routes from Gx:

- Framed Routes
- Framed Routes Source

Exec Mode

    show subscribers pgw-only imsi

Deprecated P-GW Performance Commands

This section identifies deprecated P-GW performance commands that are no longer supported in release 14.0.

None for this release.

P-GW Security Management Changes as of June 29, 2012

This section provides information on P-GW security management changes in release 14.0.

None for this release.