Cisco Cisco Packet Data Gateway (PDG)
SaMOG Changes in Release 17
▀ SaMOG Enhancements for 17.0
▄ Release Change Reference, StarOS Release 17
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In earlier releases, SaMOG made use of the Radius AAA interface to authenticate users in 3G networks, and the
Diameter interface in 4G networks. With this release, SaMOG can be used to connect to P-GW or GGSN nodes
independent of the AAA interface protocol. This enables operators upgrading from a 3G network to 4G network with a
Radius based AAA infrastructure to authenticate 4G (EPC) subscribers and setup a 4G (GTPv2) session using SaMOG.
Diameter interface in 4G networks. With this release, SaMOG can be used to connect to P-GW or GGSN nodes
independent of the AAA interface protocol. This enables operators upgrading from a 3G network to 4G network with a
Radius based AAA infrastructure to authenticate 4G (EPC) subscribers and setup a 4G (GTPv2) session using SaMOG.
Using the SaMOG general license, operators can now configure both A-AAAA and SNAPTR type DNS queries with a
Radius based authentication, or a A-AAAA type DNS query with a Diameter based authentication.
Radius based authentication, or a A-AAAA type DNS query with a Diameter based authentication.
CSCum35265 - Prepaid subscriber and Voucher support for LBO
Feature Changes
SaMOG Local Breakout Flow-based Support
With this release, SaMOG supports Flow-based Local Breakout (LBO) enabling time- and quota-based control to
support prepaid subscribers. SaMOG interfaces with the Enhanced Charging Services (ECS) using the Gy interface for
prepaid subscribers and AAA for voucher-based subscribers. Flow-based LBO is supported on both PMIPv6 and
EoGRE access types.
support prepaid subscribers. SaMOG interfaces with the Enhanced Charging Services (ECS) using the Gy interface for
prepaid subscribers and AAA for voucher-based subscribers. Flow-based LBO is supported on both PMIPv6 and
EoGRE access types.
When a GTP session with the local P-GW or GGSN is set up, the local P-GW or GGSN service communicates with
ECS to obtain the time and quota limits of the subscriber by having the Gy interface forward the CCR-I message to the
Diameter Credit Control Application (DCCA) server to establish connection. When the time or volume quota is reached,
the local P-GW or GGSN forwards the CCR-U message to DCCA in order to refresh the permitted time or volume
quota allowed.
ECS to obtain the time and quota limits of the subscriber by having the Gy interface forward the CCR-I message to the
Diameter Credit Control Application (DCCA) server to establish connection. When the time or volume quota is reached,
the local P-GW or GGSN forwards the CCR-U message to DCCA in order to refresh the permitted time or volume
quota allowed.
SaMOG Local Breakout License Enhancement
The SaMOG LBO license has been enhanced by bundling the LBO license with the ECSv2 license to enable SaMOG to
communicate with the ECS server in order to support prepaid subscribers.
communicate with the ECS server in order to support prepaid subscribers.
Important:
For more information on the SaMOG local breakout license, contact your Cisco account
representative.
CSCum36839 - APN Local breakout support under SaMOG-3G license
Feature Changes
Support for Local Breakout on SaMOG 3G
The SaMOG Local Breakout feature was introduced in an earlier release to enable subscribers to access the Internet
without having to connect to the EPC core. All subscribers of a particular APN are locally broken out with SaMOG
performing IP allocation locally. This feature was limited to 4G (GTPv2) sessions only.
without having to connect to the EPC core. All subscribers of a particular APN are locally broken out with SaMOG
performing IP allocation locally. This feature was limited to 4G (GTPv2) sessions only.
With this release, the SaMOG Local Breakout feature is extended to 3G (GTPv1) sessions where SaMOG associates
GTPv1 calls with the internal GGSN service.
GTPv1 calls with the internal GGSN service.
SaMOG Local Breakout License