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Method and apparatus for detecting link states

A link status and link detection technology, applied in the field of network communication, can solve the problems of data message loss and singleness

Active Publication Date: 2017-06-30
HANGZHOU DPTECH TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the specific implementation, since the logical link has a single visibility to the upper-layer entity of the device, such as the upper-layer protocol used for message transmission, that is, the upper-layer protocol does not care about the physical member links participating in the link detection message transmission. In this case, if the detection result of the logical link is reachable, then the logical link will be regarded by the upper layer protocol as being able to undertake the transmission task of the data message, and at this time, if some data If the physical member link to which the message is allocated is unreachable, but the link is not actually allocated to the link detection message used to detect link reachability, these data messages will be lost

Method used

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  • Method and apparatus for detecting link states
  • Method and apparatus for detecting link states
  • Method and apparatus for detecting link states

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Embodiment Construction

[0018] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0019] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The invention provides a method and apparatus for detecting link states. In the method and apparatus provided by the invention, a source device cancels the aggregation configuration of a detected link, so that an upper layer entity of the device has visibility for each physical port. Under this condition, each physical port is associated with at least one logical source port number, a link detection message is sent to a pre-associated destination device of service from the physical port through each associated logical source port number, and the source device can perform accessibility detection on each physical link utilizing the physical port as one end and utilizing the pre-associated destination device as the other end, thereby guaranteeing that the upper layer entity of the device reliably knows the accessibility of each physical link.

Description

technical field [0001] The present application relates to the technical field of network communication, and in particular to a method and device for detecting link status. Background technique [0002] With the rapid development of network technology, network transmission data has increased significantly. In order to effectively improve data transmission bandwidth and link utilization, link aggregation can be configured to aggregate multiple physical member links together to form a logical link, so that these physical member links can share a Data transmission tasks for one or more businesses. [0003] To achieve reliable transmission of data packets, a device configured with link aggregation still needs to detect the reachability of logical links by sending link detection packets before transmitting data packets. In the specific implementation, since the logical link has a single visibility to the upper-layer entity of the device, such as the upper-layer protocol used for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26
CPCH04L43/0811H04L43/12
Inventor 郑磊
Owner HANGZHOU DPTECH TECH
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