Network element for synchronous digital transport network has two pointer processors for adapting pointers, multiplex structure detector for selecting pointer processor according to structure

摘要

The device has a first pointer processor for adapting the pointer of a received multiplex signal for the case where multiplex units are addressed by a dedicated pointer, a second pointer processor for adapting the pointer for the case where several multiplex units are chained and addressed by a single pointer and a detector for detecting the multiplex structure of the received multiplex signals and selecting a pointer processor accordingly. Independent claims are also included for the following: a method of changing over an existing logical connection into one or more other logical connections in a transport network for transporting frame-structured multiplex signals..