Router exchange structure for supporting uniform exchange and service quality guarantee method
A switching structure and router technology, which is applied in the direction of data switching network, digital transmission system, electrical components, etc., can solve the problems of increased demand for cross-point buffer capacity and difficulties in hardware implementation
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[0044] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0045] In the present invention, many technical terms and mathematical symbols are involved, so for the convenience of understanding, the relevant concepts are defined first.
[0046] 1) Uniform switching means that when the cells in the input stream reach the output port through the switching device, the cells in a single input stream should be evenly distributed in the output stream.
[0047] 2) A time slot (Time Slot), which represents the time unit required to transmit a cell at a line rate. The time unit is bounded by an integer, and the symbol t represents the interval [t, t+1).
[0048] 3) Given N streams of fixed-length packets (cells), sharing an output link with a bandwidth of r, assuming that the bandwidth requirement of the i-th stream is r i , and ∑ i r i ≤ r, an instance is defined (r; r 1 , r 2 ,...,r N ). In the present i...
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