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A multi-path loopback detection method and switch device

A loopback detection and multi-path technology, applied in the field of data communication, can solve the problem that equal-cost multi-path cannot be applied

Inactive Publication Date: 2017-02-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The loopback detection function defined by the currently released IEEE 802.1ag standard is only applicable to the situation where there is only one Ethernet transmission path between the two maintenance points running this function, and cannot be applied to the situation where there is an equivalent network between the two maintenance points. The case of multipath

Method used

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  • A multi-path loopback detection method and switch device
  • A multi-path loopback detection method and switch device
  • A multi-path loopback detection method and switch device

Examples

Experimental program
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application example 1

[0071] In this example, the source maintenance endpoint initiates multi-path loopback detection to the peer maintenance endpoint, and the node that generates the loopback message has multiple outgoing interfaces.

[0072] image 3 This example is a schematic diagram of the loopback detection process of multipath. figure 2 and image 3 As shown, the multipath loopback detection method in this example includes the following steps:

[0073] Step 301: the source maintenance endpoint MEP1 determines the destination maintenance point MEP2 according to the operator's input and sends a loopback message to it, carrying the OAM message identifier and the dedicated flow identifier;

[0074] The information entered by the operator includes the MAC address of the port where the MEP2 is located. After the multipath loopback detection is started, MEP1 sends a loopback message to MEP2, and the F-tag in the loopback message carries the OF set to 1 and the Flow ID set to 0x0000.

[0075] S...

application example 2

[0085] In this example, the source maintenance endpoint initiates a multipath loopback detection to the peer maintenance endpoint, and the node that generates the loopback response message has multiple outgoing interfaces.

[0086] Figure 4 This is a schematic diagram of the multipath loopback detection process in this example, combined with figure 2 and Figure 4 As shown, the multipath loopback detection method in this example includes the following steps:

[0087] Step 401: The source maintenance endpoint MEP1 determines the destination maintenance point MEP2 according to the operator's input and sends a loopback message to it, carrying the OAM message identifier and the dedicated flow identifier;

[0088] The information entered by the operator includes the MAC address of the port where MEP2 is located. After starting the multipath loopback detection, MEP1 sends a loopback message to MEP2, and the F-tag in the loopback message carries the OF set to 1 and the Flow ID s...

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Abstract

The invention discloses a multi-path loopback detecting method and exchanger equipment, which can realize an Ethernet OAM (operation, administration and maintenance) loopback detection function in an ECMP (equal cost multi-path) scene. The method comprises the following steps: a source maintenance endpoint sends loopback messages carrying multi-path loopback detection marks to a targeted maintenance point; a forwarding node between the source maintenance endpoint and the targeted maintenance point receives the loopback messages and forwards the loopback messages through all output interfaces from a current node to the targeted maintenance point; the targeted maintenance point replies the loopback response messages containing the multi-path loopback detection marks to the targeted maintenance point for each received loopback message containing the multi-path loopback detection mark; the forwarding node between the source maintenance endpoint and the targeted maintenance point receives the loopback response messages fed back by the targeted maintenance point, and forwards the loopback response messages through all the output interfaces from the current node to the source maintenance endpoint forward; and the source maintenance endpoint judges whether the loopback detection is successful according to the number of the received loopback response messages.

Description

technical field [0001] The present invention relates to the technical field of data communication, in particular to a multi-path loopback detection method and switch device. Background technique [0002] In the current Ethernet, the Institute of Electrical and Electronics Engineers (IEEE), a standard organization, has formulated a set of working mechanisms for Ethernet operation, management and maintenance (OAM). It was officially released as the 802.1ag standard in 2007. [0003] The IEEE 802.1ag standard defines the OAM functional logic entities in Ethernet, including the Maintenance End Point (MEP) located at both ends of the Ethernet transmission path, and the Maintenance Intermediate Point (Maintenance Intermediate Point) located in the middle of the Ethernet transmission path. referred to as MIP). The maintenance endpoint and the maintenance intermediate point are collectively referred to as a maintenance point (Maintenance Point, MP for short). [0004] Each switch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L12/24
Inventor 肖敏吴波
Owner ZTE CORP
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