| 摘要 |
If the connection capacity of a communication system is to be extended, the switching matrix, as central part, needs to be enlarged in particular. In the prior art, this is done by interrupting operation and fully disconnecting the switching matrix. After the changeover, the interrupted connections need to be set up again, which is associated with a large amount of effort in the case of ATM connections, for example. The invention provides a remedy for this by reserving space for the routing addresses of the largest extension stage both in the header translation table of the interface devices and in the cell header of each ATM cell, and by providing a system split which is used to replace the old switching matrix assemblies with new switching matrix assemblies in steps, the paths via the new switching matrix assemblies, insofar as they lead to the same output-side interface devices as via the old switching matrix assemblies, being addressable using the same routing addresses. |
