Loop detection method and apparatus

A technology of loop detection and configuration instructions, applied in the field of communications, can solve problems such as protocol number expansion conflicts and conflicts

Inactive Publication Date: 2014-06-11
HUAWEI TECH CO LTD
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  • Abstract
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Problems solved by technology

[0007] In the process of realizing the above-mentioned loop detection, the inventor found that there are at least the following problems in the prior art: the defined message carrying specific information is not a standard LLDP message, for example, the Ethernet type carries a custom specific protocol number , may conflict with other user-defined user messages, or may conflict with protocol number expansion in the future

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  • Loop detection method and apparatus
  • Loop detection method and apparatus

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Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0057] Such as figure 2 As shown, a loop detection method provided by an embodiment of the present invention includes the following steps:

[0058] 201. The first device sends the first LLDP packet to the second device through the first port.

[0059] Wherein, the first LLDP message includes first loop detection information, and the first loop detection information includes a loop detection type, a device identifier of the first device, and a port number of ...

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Abstract

The invention discloses a loop detection method and an apparatus, relating to the technology field of the communication, which solves the problems that in prior art non-standard LLDP message carrying self-defined specific protocol number conflicts with other self-defined user message. A first apparatus transmits a first link layer discovery protocol (LLDP) data unit protocol to a second apparatus. The first LDDP protocol comprises a first loop detection information including loop detection types, an apparatus identification of the first apparatus and a port number of a first port. The first apparatus acquires the second LLDP message transmitted by the second apparatus from a second port. The second LLDP message comprises the first loop detection information. The second port is the one different from the first port. The first apparatus determines the presence between the first port and the second port. The embodiment of the invention is applied in the process of the loop detection.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a loop detection method and device. Background technique [0002] Power over Ethernet (POE) is a technology that transmits data signals to Ethernet clients through standard Category 5 network cables and also provides them with DC power supply. A complete POE system includes two parts: the power supply equipment PSE (Power Sourcing Equipment, PSE power supply equipment) and the power receiving equipment PD (Powered Device, PD power receiving equipment). Among them, the PSE supplies power to the Ethernet client equipment. At the same time, it is also the manager of the entire POE power supply process, and the PD is the client device receiving power supply, such as a micro base station, WLAN AP wireless LAN access point (Wireless Local Area Network Access Point, WLAN AP wireless LAN access point) dot) etc. [0003] The Link Layer Discovery Protocol (LLDP) is a lin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/437H04L12/753
CPCH04L43/10Y02D30/00
Inventor 郭海刘婷谢小福
Owner HUAWEI TECH CO LTD
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