Service providers see growing demand for more access bandwidth to more subscribers, but increased profitability is difficult to achieve without increasing service value to customers. Market, technical, and competitive pressures are triggering large capital investments in delivering video and triple-play services. In order to successfully deliver a triple-play service bundle, the service provider must have a network that is truly "session aware" - without restrictions on media, access technology, or protocols. The network must dynamically identify the subscribers, track their actions, and apply policies to govern quality of service (QoS) and security; as well as provide complete accounting on each session.
Cisco Intelligent Services Gateway (ISG) is the next-generation policy and subscriber management solution to deliver dynamic session awareness. Cisco ISG supports IP, Ethernet, ATM, Multiprotocol Label Switching (MPLS), and VPN architectures, whether the business model is for retail, wholesale, or business services. Cisco ISG allows for zero-touch provisioning, and provides the per-flow granularity and dynamic control required for triple-play services. Unlike some competitive offerings, Cisco ISG is standards-based for multivendor deployment. With RADIUS change of authorization, subscriber profiles can be changed dynamically based on user self-management or through an OSS process. Network utilization improves because per-subscriber bandwidth needs are managed dynamically, increasing customer satisfaction. Cisco ISG can also coexist with fixed-line networks managed by Cisco CNS Subscriber Edge Services Manager (SESM) and Cisco Service Selection Gateway (SSG), simplifying service extensions and migration from Cisco SSG to Cisco ISG deployments.
Cisco ISG takes advantage of Cisco IOS routing capabilities to provide uplink redundancy, load-balancing, and MPLS integration. Cisco ISG is highly scalable, with consistent performance regardless of the features used. It can define and enforce local policy embedded directly in the network, or interact with centralized policy-management systems. Its integral role within the Cisco IP Next-Generation Network (NGN) service exchange framework helps create consistent services in a highly flexible way.
Dynamically adjustable user profiles
Cisco ISG monitors all sessions for events and triggers the appropriate action based on programmable and downloadable rules. It enables services such as pre-paid, post-paid, bandwidth-on-demand, and more.
Imbedded policy manager functions
Cisco ISG can act as a local policy manager or work with a centralized application to create a truly comprehensive solution. It provides policy management functions natively. Rules to manage specific events can be delegated to Cisco ISG and distributed in the network, rather than tracked centrally. Onboard capabilities provide greater network scale and reliability.
Create next-generation environments with full session control and troubleshooting capabilities without PPP. Ease migration from PPP to IP sessions with unified user interfaces. Deliver complete services dynamically for IP session access and provide per-session policing.
Link IP sessions, address pools, and physical port information to the service for security, wholesaling, and accounting of individual traffic flows. DHCP indicates session start. DHCP option 82 is supported to identify the user in a secure manner.
Cisco ISG dynamically links subscribers to MPLS VPNs; it operates on L2TP Network Server (LNS) for integration into wholesale models.
Service profiles are automatically downloaded to eliminate complex provisioning. OpEx is lowered as the network scales.
Transparent auto logon
Enable easy, transparent service access for IP session users with higher levels of security and accounting.
Open interfaces to policy management systems
The open, standards-based Cisco architecture is proven with subscriber management solutions from partners such as BroadHop Service Management Engine (SME) as well as Cisco products such as Cisco broadband policy manager.
Prepaid and postpaid services
Encourage migration from dial-up to broadband. Create "pay-as-you go" offerings to reach more market segments with lower OpEx.
Tariff switching for prepaid and post paid services
When billing rates vary at fixed times, sessions may be active across the boundary at which the rates change. Cisco ISG automatically manages the changes in accounting data with the change in tariffs to improve billing accuracy and improve customer satisfaction.
Multiple services, multiple flows per subscriber
For complete control over triple-play services, unique streams can be managed and monitored for each subscriber, as well as on an aggregate basis to preserve service integrity with oversubscription.
MPLS and VRF awareness
Dynamically assign Virtual Route Forwarding (VRF) to map sessions to MPLS VPNs. Enable wholesale models, lower OpEx, and create services on a converged MPLS core.
Dynamic VPN selection
Use a service in one VPN and then switch to a service that belongs in a different VPN without interrupting the user experience.
Flexible, feature-rich identity and authorization
Identify sessions and flows from a range of attributes for better service control, more accurate accounting, and enhanced customer service.
Granular, flexible accounting
Per-session and per-service accounting, QoS accounting, prepaid (volume), and prepaid (time-based) billing help generate more revenue, more accurate billing, and faster reconciliation.
Push and pull models
Events that create or change services can be invoked from the network (pulled) or from centralized applications (pushed) to create the most flexible and cost-effective service delivery architecture. Policies for session bandwidth, security, and accounting can be pushed dynamically in real time while session is still active.
Change of authorization
Standard-based "push" of service policy attributes from central server is available at any time during the session. Uses standard RADIUS and standard Change Of Authorization (CoA) for easy integration with existing OSS infrastructure and rapid development of services, and creates services and revenue opportunity for triple-play services. That allows you to manage bandwidth dynamically for lower OpEx with higher customer satisfaction.
Debugging based on any subscriber, service, or any other identifier helps speed trouble resolution, reduce OpEx, and improve customer satisfaction.
High scalabilityProduct Highlights
High-performance design scales to 32,000 sessions with the Performance Routing Engine 2 (PRE-2) and up to 40,000 sessions with PRE-3 on the Cisco 10000 series.
- ISG features in IOS offered across industry leading portfolio of Cisco routers
- Interface for ATM, Gigabit Ethernet, VLAN, and IP access
- Transport service across IP, L2TP and MPLS network interfaces
- Establish and control PPP as well as next generation IP or IP subnet sessions
- Authenticate and authorize subscribers using DHCP or RADIUS based authentication
- Define local intelligent policies directly in ISG router
- Support standards based RADIUS CoA service control interface into BSS
- Control and account for per-subscriber and per-service use for post-paid and pre-paid billing