| 摘要 |
The present invention relates to an arrangement and a method for providing communication between a number of service networks (11-14) and a number of second, local, telecommunication systems (10) using a first communications system (4). The first communication system (4) is WDM-based, that a number of common service mapping centers (2) are provided, each including wavelength assignment and multiplexing means (3) for assigning specific wavelengths to a number of services/service networks (11-14) and for multiplexing said wavelengths onto transmission means of the first, WDM-based communication system (4). A number of gateway arrangements (5) are connected to the transmission means, each gateway arrangement including wavelength (de)multiplexing means (6) and channel allocation means (7) for directly mapping the assigned, specific wavelengths onto predetermined virtual broadcast domains (VLAN1-4) of a second, local communication system (10) to provide services to end users of the local communication systems.
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