The Cisco® Enhanced Gateway GPRS Support Node (eGGSN) is a high-performance data gateway enabling advanced wireless data service for mobile wireless Service Provider. The Cisco enhanced GGSN is a scalable, high-performance, resilient system build on industry-leading Cisco 7600 Edge Router platform and Cisco Internetworking Operation System (IOS).
On top the 3GPP GGSN functionality the Cisco eGGSN provides advanced Service Awareness, QoS, Policy Control and versatile billing capabilities to provide carrier-class access to Consumer, Multimedia Services as well as secured access to Corporate services.
Table 1. Features and Benefits
Network Management
Network management functions provide mechanisms to support operations, administration, and maintenance (OA&M) functions related to the Cisco eGGSN. The Cisco eGGSN management has a wide range of console and SNMP management tools designed to reduce operational costs. The Cisco GGSN is supported by the Cisco MWC, which helps enable remote fault management, APN management, and configuration management for the Cisco eGGSN. The Cisco MWC is a suite of element-management-system (EMS) applications that enhance the delivery of new mobile wireless services. Based on CiscoWorks, the Cisco MWC addresses the element management requirements of mobile operators and provides fault, configuration, accounting, performance, and security (FCAPS) functions as mobile operators transition their service delivery networks from 2G circuit-based traffic to 2.5G and 3G IP-based services. For more details about the Cisco MWC, go to: http://www.cisco.com/en/US/partner/products/sw/netmgtsw/ps820/index.html.
Reliability and Availability
The Cisco eGGSN provides for Stateful Session Redundancy providing for continuation of user sessions as well as redundancy of prepaid quota and charging information, thereby providing for tremendous protection from single-node outages. Additionally, Cisco offers the PSD (Persistent Storage Device for protection of charging information against failure of the Charging Gateway or the Service Control System (prepaid usage).
Scaling
The Exchange Director capability within the Cisco Mobile Exchange provides for distribution of PDP context among a Cisco GGSN server farm. By presenting a single VIP to the SGSNs, the Exchange Director capability allows for transparent scaling of the GGSN server farm as well as load distribution. In addition to providing for transparent server farm expansion, portions of the server farm can be taken out of service for maintenance or upgrade while the rest of the farm services the subscriber community. Exchange Director's Dynamic Feedback Mechanism is used to monitor Cisco GGSN load, yielding adaptive distribution adjustments for new PDP contexts. Also, PDP Context rejections due to CAC QoS negotiation failures can be reassigned to another GGSN, providing for better utilization of QoS pools. Probe capability can be used to test for infrastructure availability so that user traffic can be routed via paths with full service availability.
CISCO eGGSN HARDWARE PLATFORMS
The Cisco 7600 Series Router is a high-performance router deployed at the network edge, where performance, IP services, redundancy, and fault resiliency are critical. The versatile Cisco 7600 Series system scales WAN connectivity from OC-48/STM-16 to DS-0 and LAN connectivity from 10 Gigabit Ethernet through 10-Mbps Ethernet. The Cisco 7600 Series delivers these capabilities while implementing high-touch, hardware-accelerated IP services through the Cisco Parallel Express Forwarding (PXF) network processor.
The Cisco 7600 Series delivers up to 13 slots of optical LAN, WAN, and metropolitan-area network (MAN) networking at the network edge, helping enable service providers to offer high-value, Differentiated Services. It provides mobile service providers with the ability to deploy the advanced network infrastructure necessary to succeed in demanding, high-traffic environments. The Cisco 7600 Series enhanced chassis delivers design improvements that incorporate redundant, tiered-speed fan trays with configurable options for route processor, switch fabric, and power supply redundancy.
The Cisco 7600 Series routers accommodate a broad selection of line cards supporting numerous applications.
Table 2 - 7600 Line Card Overview
The Cisco 7600 Series Router is an outstanding choice for multiple applications. When combined with the Cisco 7600 Multiprocessor WAN Application Module (MWAM) and Cisco GGSN software, it delivers a high-performance, highly flexible, redundant platform for mobile service delivery.
For more information about the Cisco 7600 Series, visit http://www.cisco.com/go/7600.
SERVICE AND SUPPORT
Using the Cisco Lifecycle Services approach, Cisco and its partners provide a broad portfolio of end-to-end services and support that can help increase your network's business value and return on investment. This approach defines the minimum set of activities needed, by technology and by network complexity, to help you successfully deploy and operate Cisco technologies and optimize their performance throughout the lifecycle of your network.
FOR MORE INFORMATION
For more information about Cisco mobile wireless products, including Cisco Mobile Exchange, go to http://www.cisco.com/go/mobile.
Ordering Information
To place an order, visit the Cisco Ordering Home Page.
