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Method of searching combined route of virtual container signal in Claus flip network

A switching network and virtual container technology, which is applied in the combined path field of virtual container signals, can solve problems such as increased switch area and increased production cost

Inactive Publication Date: 2004-09-08
ERICSSON-LG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in order to realize 45×45 switches, about 45×45=2025 crosspoint switch arrays are required in a single state, which will disadvantageously lead to an increase in production cost and an increase in the area of ​​the switch itself

Method used

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  • Method of searching combined route of virtual container signal in Claus flip network
  • Method of searching combined route of virtual container signal in Claus flip network
  • Method of searching combined route of virtual container signal in Claus flip network

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Embodiment Construction

[0033] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following will describe in detail with reference to preferred embodiments of the invention shown in the accompanying drawings. FIG. 2 is a schematic diagram illustrating the structure of an exemplary Common LISP Object System (CLOS) switching network in accordance with the present invention. As shown in FIG. 2, the CLOS switching network is formed in a 3-stage switch structure for constructing NxN non-blocking switches with N inputs and N outputs.

[0034] For example, assuming N=60, n=6, 60 inputs are divided into multiple groups of 6 inputs, and 60 outputs are divided into multiple groups of 6 outputs. Therefore, stage 1 includes N / n (=60 / 6) switches (10-1, ..., 10-10) each having n×(2n-1) (=6×11) crosspoints switch. Stage 2 includes 2n-1 (=11) switches (20-1, . . . , 20-11), each having N / n×N / n (=10×10) crosspoint switches. Stage 3 includes N / n (=60 / 6) switches each having (2n-1)×n (=11×6) crosspoint switches. ...

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Abstract

Methods for searching a composite path for virtual container signals in a similar CLOS switching network is provided that is capable of switching various signal tributaries. The method can include managing a link use state between each state with a linked list and a bit map, searching connectable candidate paths using the link use state and setting a selected or an optimal path among candidate paths as searched, and managing a connection state of channels in the set path using an N-tree data structure and a data structure.

Description

technical field [0001] The invention relates to a CLOS switching network, in particular to a method for searching a combination path of a virtual container (virtual container) signal in the CLOS switching network. Background technique [0002] Figure 1 shows a prior art NxN switch constructed in a single stage. As shown in FIG. 1, a prior art NxN switch can be implemented with a single time switch chip that enables non-blocking connections without forming an additional network. Therefore, the prior art N×N switch can be managed with a simple connection form "from channel" and "to channel", and can be connected and released by managing only the interconnection information between the east side and the west side channel. [0003] As mentioned above, prior art NxN switches have a number of drawbacks. When applying a general cross-connect algorithm to prior art NxN switches, hardware is required to form a very large single NxN switch, which is almost impossible. For example,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/50H04J3/16H04Q3/68H04Q11/04
CPCH04Q3/68H04J2203/0014H04J2203/0021H04J3/1611H04Q2213/13144H04L12/50
Inventor 李弘途
Owner ERICSSON-LG