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Transmission method and system of synchronous state information in Ethernet synchronization

A technology for synchronizing status information and transmission methods, applied in the field of communication, can solve problems such as network element loss of lock, and achieve the effect of preventing Unicom from forming a loop

Inactive Publication Date: 2015-05-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The main purpose of the present invention is to provide a method and system for transmitting synchronization state information in Ethernet synchronization, so as to solve the problem in the prior art that the synchronization state information forms a loop when multi-links are connected, resulting in the loss of network elements.

Method used

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  • Transmission method and system of synchronous state information in Ethernet synchronization
  • Transmission method and system of synchronous state information in Ethernet synchronization
  • Transmission method and system of synchronous state information in Ethernet synchronization

Examples

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Embodiment 1

[0036] image 3 It is a preferred structural block diagram of a transmission system of synchronization state information in Ethernet synchronization according to an embodiment of the present invention, including: a first node 302 and a second node 304, wherein:

[0037] The second node 304 is configured to send first synchronization state information to the first node 302 on each first link between the first node 302 and the second node 304, wherein the quality level of the first synchronization state information is the first The quality level of the second node;

[0038] The first node 302 is used for when the first node 302 is only connected to the second node 304, the first port (such as port 11) on it is set to only receive from the second port (such as port 21) on the second node 304 and send the second synchronization state information to the second node 304 on other ports (for example, port 12-1n) except the first port among all ports connected to the second node 304, ...

Embodiment 2

[0054] Figure 4 It is a preferred flow chart of a method for transmitting synchronization state information in Ethernet synchronization according to an embodiment of the present invention, including:

[0055] S402. The first node receives first synchronization state information from the second node on each link between the first node and the second node, wherein the quality level of the first synchronization state information is the quality level of the second node ;

[0056] S404, if the first node is only connected to the second node, the first node sets the first port on it to only receive the first synchronization state information from the second port on the second node, and connects to the second node Send the second synchronization state information to the second node on all ports except the first port, wherein the quality level of the second synchronization state information is different from the first synchronization state information, and the first port and the sec...

Embodiment 3

[0071] based on image 3 network structure, Figure 5 Another flowchart of a method for transmitting synchronization state information in Ethernet synchronization is shown, wherein DUT1 may be the first node, and DUT2 may be the second node. Such as Figure 5 The transmission method of the synchronization state information in the Ethernet synchronization shown includes the following steps:

[0072] S501: The quality level of DUT1 itself is 2, configure multiple links from port 11 to port 1n, and configure the corresponding clock source for each link port, start the automatic SSM algorithm, that is, operate according to the standard SSM protocol, that is, carry out Transmission of synchronization state information.

[0073] S502: The quality level of DUT2 itself is 4, configure multiple links from port 21 to port 2n, and configure a corresponding clock source for each link port, start the automatic SSM algorithm, that is, transmit the synchronization status information.

[...

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Abstract

Disclosed in the present invention is a transmission method and system for synchronous state information in Ethernet synchronization, wherein the method comprises: a first node receives first synchronous state information from a second node on each links between the first and the second node, wherein the quality level of the first synchronous state information is the quality level of the second node; if the first node connects the second node only, the first node sets a first port on itself that it only receives the first synchronous state information of a second port on the second node, and sends second synchronous state information to the second node on the other ports except the first node among all the nodes connected to the second node, wherein the quality level of the second synchronous state information is different from the first synchronous state information, and there is a link between the first port and the second port. The present invention achieves the effect that multi-links are prevented from connecting into a ring, so as to forward the synchronous state information downward successfully.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and system for transmitting synchronization state information in Ethernet synchronization. Background technique [0002] In the evolution of the telecom service provider network to the next generation network, Ethernet will gradually replace PDH (Plesynchronous Digital Hierarchy) and SONET (Synchronous Optical Network) / SDH (Synchronous Digital Hierarchy, synchronous digital system) ) transmission network. Therefore, in some applications that require strict synchronization (including wireless base stations and TDM (Time Division Multiplex and Multiplexer, Time Division Multiplex and Multiplexer Circuit Emulation Service) equipment), telecom service providers will be faced with how to pass The challenge of transmitting high-quality clock synchronization over Ethernet. The latest standard solution is Synchronous Ethernet (SyncE). [0003] In SyncE, Ethernet synchronizes ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/43H04J3/06H04L45/18
CPCH04L12/413
Inventor 杨帆
Owner ZTE CORP