Square switching architecture
AssigneeTelefonaktiebolaget LM Ericsson
InventorsRolf S. Sandin, Per A. M. Ljungberg
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Abstract
A packet switch has a switching architecture comprising a cross network of input and output switching links crossing each other. The output switching links form a number of tree structures, which each includes an upper buffering level, which includes a number of intermediate storing buffers for packets entering on the input links, and a lower buffering level with at least one output buffer connected for reception of the contents in at least two of the intermediate storing buffers of the upper buffering level, and the output of which forms an output of its respective output switching link.
Claims13
A packet switch with a switching architecture comprising:
- a cross network of input and output switching links crossing each other;
- and
- a number of tree structures connected to said output switching links, said number of tree structures including an upper buffering level containing a number of intermediate storing buffers for packets entering on said input links, and a lower buffering level with at least one output buffer connected for receiving the contents of at least two of said intermediate storing buffers of said upper buffering level, the output buffer having an output provided to its respective output switching link.
A packet switch with a switching architecture comprising:
- a cross network of input and output switching links crossing each other;
- and
- two types of a plurality of functional units for distributing the switching functions of the switch, the first type of functional unit being a cross point unit having a storing buffer and the second type of functional unit being an input unit for terminating serial bit streams and converting an external format of the serial bit streams to an internal format, the internal format having transmission properties that differ from transmission properties of the external format, and bit streams having the internal format are communicated between the input unit and at least one cross point unit.
Dependencies are inferred from the claim text.