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OSN 500 550 580 V100R008C50 Commissioning and Configuration Guide 02

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Basic Concepts

Basic Concepts

Learning about the basic concepts of composite services helps to configure composite services.


Integrated service management is necessary for a network where services are received/transmitted in various modes and are running in various scenarios.

The U2000 provides a composite service management function, which applies to scenarios where a single service does not meet requirements. With this function, users can flexibly combine pseudo wire emulation edge-to-edge (PWE3), and E-Line services into composite services to meet the requirements of various solutions, such as IP RAN and IP core.

The U2000 also provides simplified and user-friendly service provisioning interfaces and supports visual and end-to-end service management. These features significantly simplify network O&M operations and improve the core competitiveness of carriers.


A composite service is a combination of multiple services, such as E-Line service + E-LAN service.

A composite service consists of service components and connection points. Figure 3-41 shows the model of a composite service.

Figure 3-41  Composite service

  • Service component: A service component is a service that needs to be added to a composite service. For example, the service components of a E-Line + E-LAN composite service are E-Line and E-LAN services.
  • Connection point: A connection point connects two service components to form a composite service. A connection point shows the connection mode between two service components.
    • PW connection point: Service components are connected by PWs to form a composite service.
    • Interface connection point: Service components are connected by service access interfaces (interfaces connected to the user side) to form a composite service.
Updated: 2019-01-21

Document ID: EDOC1100020976

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