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Edge Services Director Overview


Service providers are increasingly using IP Layer 3 through Layer 7 services to differentiate themselves from third-party, external, over-the-top (OTT) providers and provide better customer experience. These IP services are used to provide better end user experience by managing traffic flow per application type, better security, better video quality and other enhanced IP applications. OTT providers are consuming service provider resources and therefore, value-added IP service is the way optimize and offer best returns for network investment.

Juniper Networks service delivery gateway (SDG) is a next-generation services solution framework to address these set of converging, simultaneous challenges that mobile and wireline operators currently face in delivering services. The SDG primarily is a service orchestration solution, which is based on subscriber and service policy contexts to coordinate the traffic flow between services in on-the-box or off-the-box scenarios and also with Juniper Networks devices or third-party devices. In addition, SDG consolidates the common elements necessary to deliver services at scale, such as carrier-grade NAT (CGN), stateful firewall, deep-packet inspection, or stateful load balancing. This mechanism simplifies and accelerates delivery and introduction of new services offering while keeping changes to network and other services at a minimum.

The SDG is equipped to be positioned upstream from a broadband gateway, cable modem termination system (CMTS), or any other aggregation point such as Packet Data Network Gateway (P-GW) on the Gi interface in the network where centralized services can be applied via an IP address or subscriber database. These services on Juniper service cards are configured in a service chain for a specific packet flow to meet a customer’s business and network requirement. In addition, policies and filters associated with these services are modified and updated as business evolves and requirement changes. In the future, the service chain of service instances on different service cards becomes a necessity because packet flow within single platform depends on services configured in the platform. Also, tethered services on virtual instances attached to MX Series routers and other Juniper Networks platforms can be complicated.

Over a period of time, as the number of services increase and configuration too increases correspondingly, deployment and management of IP services become dynamic, complex and unmanageable. Configuration and deployment using configuration files and statements through the CLI interface is prone to human errors. Therefore, a robust and a comprehensive GUI-based service management application is required to automate management and monitoring tasks. Amazon Web Services (AWS) enables the simplification of compute, storage, and network management using easy-to-use web application increases customer acquisition and adoption of management apps. SDG reduces operational (OPEX) costs by abstracting and simplifying complex low-level CLI commands and scripts. The services management system called Edge Services Director enables faster time to market and better customer experience. Edge Services Director simplifies and enables dynamic SDG Service planning, configuration, and provisioning of settings on MX Series routers so that users can respond to market condition faster with lower OPEX and overhead costs.