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Method, system and device for detecting Ethernet links among not direct connected devices

A technology between Ethernet links and devices, applied in the field of communication, can solve problems such as inability to apply low-end devices, complicated implementation mechanism, and high overhead

Inactive Publication Date: 2007-12-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As can be seen from the above description, the existing 802.3ah protocol packets can only be used for link detection between directly connected devices. When using the 802.1ag protocol for fast link detection between non-directly connected devices, the network needs to be divided into MD and MA, and further configure MEP, so the implementation mechanism is relatively complex, and the overhead of the entire network is relatively large, and the application of the 802.1ag protocol to detect links between non-directly connected devices usually requires the participation of hardware at the same time, so the device's The hardware requirements are relatively high, and it cannot be applied to many low-end devices that do not require high hardware requirements

Method used

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  • Method, system and device for detecting Ethernet links among not direct connected devices
  • Method, system and device for detecting Ethernet links among not direct connected devices
  • Method, system and device for detecting Ethernet links among not direct connected devices

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Embodiment Construction

[0036] In order to enable those skilled in the art to better understand the technical solutions provided by the embodiments of the present invention, the technical solutions provided by the embodiments of the present invention will be further described in detail below in conjunction with the drawings and specific implementation methods.

[0037] The unicast message in the embodiment of the present invention is mainly the 802.3ah protocol message, this is because the 802.3ah protocol message has the characteristics of simplicity and flexibility, here "unicast" mainly refers to a device as the detection active party to send the message To a detection passive device corresponding to it, the structure of the 802.3ah protocol message is shown in Table 1 below:

[0038] Table 1

[0039] Destination Address

unicast address

6 bytes

Source Address

source address

6 bytes

Type(0×8809)

Types of

2 bytes

Subtype(0×03)

Subtype

...

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Abstract

The method comprises: at least one of both source device and destination device is used as the test initiative side to send unicast message; said unicast message contains the physical address of test passive side; said unicast message is relayed to the test passive side corresponding to the physical address via intermediate device; the test initiative side decides if the Ethernet link is normal according to t he receiving state of the unicast message returned by the test passive side. The invention also reveals a test system and an apparatus thereof.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method, system and device for detecting Ethernet links between non-directly connected devices. Background technique [0002] With the gradual expansion of the application range of the Ethernet, the requirements for the OAM (Operation, Administration and Maintenance) function of the Ethernet are also gradually increased. Ethernet OAM refers to the operation, management and maintenance of Ethernet, and its functions can be divided into fault management and performance management. Among them, fault management is used to detect the connectivity of the network, mainly referring to detecting faults and triggering protection switching; performance management is used to detect parameters such as packet loss, delay, and jitter in network transmission, and provides operators with network monitoring and operation conditions, Confirm whether the forwarding capability of the network...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/56H04L12/24
Inventor 吕鸿
Owner HUAWEI TECH CO LTD
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