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Method and equipment for supporting over-long transmission distance of distance-enhanced Ethernet device

A transmission distance and enhanced technology, applied in the field of distance enhanced Ethernet equipment, can solve problems such as lack of application environment

Inactive Publication Date: 2013-03-27
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in many cases, LRE equipment does not have an application environment for manual configuration, and there is an urgent need for a solution for LRE equipment that can automatically adopt the 10Mbps / 4-pair working mode according to the transmission distance.

Method used

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  • Method and equipment for supporting over-long transmission distance of distance-enhanced Ethernet device
  • Method and equipment for supporting over-long transmission distance of distance-enhanced Ethernet device
  • Method and equipment for supporting over-long transmission distance of distance-enhanced Ethernet device

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] figure 2 A flowchart of a method for an LRE device supporting an ultra-long transmission distance provided in an embodiment of the present invention, as shown in figure 2 As shown, the specific steps are as follows:

[0042] Step 201: Configure the LDS self-negotiation duration T1, the negotiation duration T2 supporting the ultra-long transmission distance working mode, and the total link negotiation duration T3 on each LRE device in advance, and T1≠T2, T3>T1+T2.

[0043] Here, the working mode supporting the ultra-long transmission distance may be a 10Mbps / 4-pair working mode.

[0044] Step 202: Any LRE device: LRE device A is powered on.

[0045] Step 203: LRE device A uses the LDS auto-negotiation mode to perform link negotiation with the link peer device: LRE device B.

[0046] This step is the same as the existing LD...

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Abstract

The invention discloses a method and equipment for supporting over-long transmission distance of a distance-enhanced Ethernet device. The method includes the following steps: electrifying an LRE (Long Reach Ethernet) device; conducting link negotiation with a link end-to-end device by using an LDS (Local Distribution Service) auto-negotiation mode; if discovering that the LDS auto-negotiation fails, conducting link negotiation with the link end-to-end device by using a preset work mode supporting over-long transmission distance; and if not, communicating with the end-to-end device by using the work mode supporting over-long transmission distance. With the invention, the LRE device can support the over-long distance transmission.

Description

technical field [0001] The invention relates to the technical field of link negotiation, in particular to a method for a distance-enhanced Ethernet device supporting an ultra-long transmission distance and a distance-enhanced Ethernet device supporting an ultra-long transmission distance. Background technique [0002] Distance Enhanced Ethernet (LRE, Long Range Ethernet) uses Link Discovery Signaling (LDS, Link Discovery Signaling) to complete the function of link negotiation. Among them, the content of the link negotiation includes: determining the master / slave relationship; estimating the cable length; determining the number of effective twisted pairs and the order of the pairs; determining the maximum working capacity supported by both ends of the link. [0003] LDS can support five working modes of 10Mbps / 1 pair, 10Mbps / 2 pairs, 100Mbps / 1 pair, 100Mbps / 2 pairs, and 100Mbps / 4 pairs. When the LDS device is powered on, it needs to use each working mode in turn to perform L...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L29/06
Inventor 于洋
Owner NEW H3C TECH CO LTD
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