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Method and device for supporting Ethernet self-consultation in medium access control

A medium access control and self-negotiation technology, applied in data exchange networks, data exchange through path configuration, digital transmission systems, etc., can solve problems such as large risks and single working modules, and achieve the effect of reducing risks and ensuring timeliness

Inactive Publication Date: 2009-06-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a method and device for supporting Ethernet port self-negotiation in media access control, so as to solve the problem of relatively high risk due to a single working module in the prior art

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  • Method and device for supporting Ethernet self-consultation in medium access control
  • Method and device for supporting Ethernet self-consultation in medium access control
  • Method and device for supporting Ethernet self-consultation in medium access control

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Embodiment Construction

[0031] refer to Figure 4 As shown, the device of the present invention includes a medium access control (MAC) module, a serial-independent media interface module of a serial-independent media interface / source synchronization (that is, a serial-independent media interface or a source-synchronous serial-independent media interface module, referred to as SMII / SS-SMII module), data input / output management module (MDIO module for short) and selection control module. The serial independent medium interface / source synchronous serial independent medium interface module is connected with the MAC module and the external physical layer chip, and the data input / output management module is connected with the external physical layer chip through the interface, and is used for obtaining from the physical layer chip PHY Status information; the irrelevant media interface module and the data input / output management module are respectively connected to the selection control module to report the...

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Abstract

This invention discloses a method and a device for supporting Ethernet interface self negotiation in medium access control. The method includes: a data input / output manage module and a serial irrelevant medium interface module synchronized to its interface / source fetch a first and second set of state information from each physical port and separately report them to a select and control module which selects one set of state information to its corresponding medium access control module to switch the working states. The device includes: a medium acc control module, a serial irrelevant, medium interface module synchronized to its interface / source, a module data input / output manage module and a selection control module.

Description

technical field [0001] The invention relates to medium-independent interface technology in communication, in particular to a method and device for supporting Ethernet port self-negotiation in medium access control. Background technique [0002] The auto-negotiation function in the Ethernet switch is realized by the physical layer (PHY) chip. Through self-negotiation, two connected PHY chips can determine the current working status, including link status (linkup / link down), speed status (10M / 100M) and duplex status (half duplex / full duplex). [0003] refer to figure 1 As shown, only when the working state of the medium access control (MAC) of the Ethernet switch is consistent with the working state of the PHY chip, can the normal progress of frame exchange be guaranteed. However, the MAC itself does not have the self-negotiation function, and can only obtain the result of the self-negotiation from the PHY chip as the working state of the MAC, that is, the method of supporti...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04L29/02H04L12/24
Inventor 马敬兴陈华彬夏世长
Owner HUAWEI TECH CO LTD
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