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Virtual channel identification dynamic configuration method in asynchronous transmission mode

An asynchronous transmission mode and dynamic configuration technology, which is applied in transmission systems, digital transmission systems, electrical components, etc., can solve problems such as equipment docking failures, unfavorable network planning, and restrictions on increasing the space division of configuration personnel, so as to achieve convenient docking and reduce The effect of restriction

Inactive Publication Date: 2010-01-20
HUAWEI TECH CO LTD
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Problems solved by technology

Especially in multiple ATM exchanges, if the allocation of VPIs is not pre-divided, the device interconnection will fail due to unsuccessful configuration during the exchange, and the APC configuration specification needs to be re-modified, which will greatly improve network planning and device interconnection. brings great limitations
[0006] Therefore, the disadvantages of the prior art are: in ATM switching, it is necessary to plan in advance whether a certain VPI is used for VP switching or for VC switching; This is not conducive to network planning, and also increases the restrictions on the division of VC subspaces by configuration personnel.

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  • Virtual channel identification dynamic configuration method in asynchronous transmission mode
  • Virtual channel identification dynamic configuration method in asynchronous transmission mode
  • Virtual channel identification dynamic configuration method in asynchronous transmission mode

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Embodiment Construction

[0028] ATM is an asynchronous transfer mode, which refers to the nature of ATM statistical multiplexing. The transmission mode refers to the multiplexing, switching, and transmission technologies used in the network, that is, the transmission method used for information transmission from one place to another. In this transmission mode, information is organized into cells (CELL), and individual cells from a certain user information do not need to appear periodically. Therefore, ATM is a technology that performs statistical multiplexing, switching, and transmission in units of cells in the network.

[0029] The ATM port controller chip (APC, ATM Port Controller) is a single chip provided by AGERE that realizes all functions of the ATM layer. Wherein, the asynchronous transfer mode (ATM, Asynchronoustransfer mode) is connection-oriented, and the connection in the ATM is to establish a virtual connection on two levels, namely so-called virtual channel (VP, Visual Path) and virtua...

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Abstract

This invention relates to a dynamic configuration method for virtual channel labels in an asynchronous transmission mode including: A, setting two stacks in a memory, B, storing the content of VPI written in the LUT2 list used in VP or VC exchange in the two stacks when initializing the APC chip, C, storing the content of the top stack in the stack of VP or VC exchange in the LUT2 list corresponding to VPI when setting up VP or VC exchange link, D, storing the corresponding list of LUT2 in the stack of VP exchange when deleting the VP exchange and storing the corresponding content of said VPI in the top stack of the VC when deleting the VC and releasing all VC corresponding to said VPI.

Description

technical field [0001] The invention relates to the field of data network communication, in particular to a dynamic configuration method of a virtual channel identifier in an asynchronous transmission mode. Background technique [0002] In ATM technology, ATM cells are transmitted on the line. The virtual channel identifier (VPI) and virtual channel identifier (VCI) in the ATM cell header are used to identify the ATM link. When a cell enters from the Universal Test & Operations PHY Interface for ATM (UTOPIA, Universal Test & Operations PHY Interface for ATM) in the APC (ATM Port Controller), through the three-level query method, according to the virtual data in the input cell header The channel identifier VPI and the virtual channel identifier VCI and a certain physical port (port) entered from the cell are mapped to a connection unit of the input virtual connection table (IVT). Wherein the virtual channel VC unit of the IVT table includes the connection information needed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/02H04L29/00H04L12/54
CPCH04L2012/5685H04L12/5601H04L2012/562
Inventor 黄南华
Owner HUAWEI TECH CO LTD
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