Services Supporting E2E Configuration
On an OptiX OSN 8800 packet network, the following services support end-to-end (E2E) configuration:
PW-carried E-Line services, that is, virtual private wire service (VPWS). In E2E configuration, they are also called pseudo wire emulation edge-to-edge (PWE3) services.
PW-carried E-LAN services, that is, virtual private LAN service (VPLS).
Composite services, that is, E2E services that comprise different types of services. On an OptiX OSN 8800 packet network, a composite service comprises PWE3 and VPLS services.
A composite service contains service components and connection points. Figure 1 shows the model of a composite service.
Figure 1 Model of a composite service
Service components: indicate the services that constitute a composite service. For example, for a composite service that comprises PWE3 and VPLS services, the service components are PWE3 and VPLS services.
Connection points: connect service components to form a composite service. Connection points are classified into the following types, which show the connection mode of service components.
PW connection points: indicate that service components are connected using PWs to form a composite service.
Port connection points: indicate that service components are connected using service ports (that is, UNI ports) to form a composite service.
