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Understanding the Need for Edge Services Director


The service delivery gateway (SDG) orchestration of services, by coordination of traffic flows and service interaction, based on policy and subscriber context, immensely simplifies the service deployment. In addition the consolidation of various components necessary to deliver services (such as carrier-grade NAT [CGNAT], stateful firewall, deep-packet inspection, or stateful load balancing) at scale and allows for simplified and reliable services network architecture. An SDG management application is a key component for simplifying and solving major operational challenges of service delivery that leads to service innovation in future.

The SDG management application called Edge Services Director is an operations tool that is primarily used by the service provider operations team for comprehensive and centralized service management across different regions, zones and business units catering to different type of customers. For an enterprise, consumer, voice over Long Term Evolution (VoLTE) mobile networks, and others, the SDG management application is implemented on the Junos Space Network Management application and enables service providers the capability to achieve faster IP service rollouts for business needs and reduce overall operating expense (OPEX) costs for managing the service lifecycle. Currently, SDG users need to plan, configure and debug entire SDG network using the CLI interface.

Operators need extensive training in CLI commands and need to be abreast with the latest syntax and format changes in the CLI commands and configuration stanzas. The CLI method of setup and administration is not well-suited for bulk management and requires a longer time to test, deploy, and maintain large networks. Although SNMP may provide some monitoring, it lacks a thorough management capability for service lifecycle management. Service management is a well-understood concept in enterprise and consumer domains. However, service management in operator and service provider networks is a combination of complex integration of element management systems, operations support systems (OSS), and business support systems (BSS) in the backend. Edge Services Director has a distinct, potent advantage over other management applications available in the market because it is not vendor-specific and provides a cohesive, seamless management capability. The service provider operations personnel use role- based users and workflows to manage services.

The workflow supports deployment specific methods of operations. Edge Services Director, which is the SDG management application, addresses the following business and operational requirements:

  • Cost and time to market for new service—Introduction of new value-added services in a faster and streamlined way to meet evolving business needs.

  • Reliability of services and network—Proactive monitoring of SDG traffic flow and various components for root cause analysis and faster resolution.

  • Flexibility of making changes—Configuration and reconfiguration of services in a much more controlled and isolated environment.

  • OPEX savings—Reduction of OPEX cost related to deploying new services and the training required to operate the service

  • OPEX savings—Reduction of OPEX cost related to deploying new services and the training required to operate the service

You can employ SDG management in the following network scenarios:

  • Simplified and scalable management of hundreds of SDGs

  • Configuration and provisioning of SDG services

  • Support for large brownfield deployments

  • Greenfield deployment support by enabling service planning and configuration templates

    Edge Services Director currently supports only brownfield deployments or provisioning and not greenfield deployments. A greenfield deployment refers to the Junos OS base configurations and bootstrapping, core device settings such as routing instances, interfaces and IP addresses, and routing protocols to be available for configuration using the network management application. A brownfield deployment refers to the basic and mandatory device settings already being configured on the devices before they are imported or discovered for additional modifications, such as configuration of services, using the network management application.

  • High availability (HA) support for active and standby systems

  • Faster and easier issue resolution to isolate and identify problems, and debugging call flows for troubleshooting

  • A searchable and sortable inventory of service instances, service components, and the underlying hardware

  • Policy and filter management across service instances on the network

  • Scalable video traffic monitoring, such as to monitor multicast or unicast video traffic.

  • Single pane of view for service monitoring with key performance indicators (KPIs) and threshold values

  • Fault and performance management for scalable logging and data collection and correlation of different data sources

  • System image and version management, and management of scripts

  • Reporting of service usages