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Method for processing message and network element equipment

A technology of network element equipment and messages, which is applied in the field of optical wavelength division communication, can solve the problems of inability to realize time synchronization of the entire network and provide accurate time, stripping of PTP protocol messages, and the inability of WDM networks to realize Ethernet message transmission and Analysis and other issues to achieve the effect of precise time transmission

Active Publication Date: 2012-12-26
ZTE CORP
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Problems solved by technology

However, PTP protocol packets need to be encapsulated in the Ethernet frame format for interaction. Using this existing technology, PTP protocol packets cannot be stripped out on the line side, and WDM networks cannot implement Ethernet communication between network elements. The transmission and analysis of the message, so that it is impossible to transmit and analyze the protocol signaling of network precise time synchronization between network elements, and it is impossible to realize the time synchronization of the whole network and the function of providing precise time

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  • Method for processing message and network element equipment
  • Method for processing message and network element equipment
  • Method for processing message and network element equipment

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Embodiment Construction

[0052] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0053] In order to realize the interaction of PTP protocol messages between network elements of the WDM network without occupying the service channel, the PTP message can be disassembled into several 1-byte fields or multi-byte fields, and filled into OTUk frames along with the frame The reserved bytes of the field are transmitted to the opposite end, and the opposite end device parses the field, extracts and recomposes the PTP protocol message, and hands it to the PTP protocol processing unit for processing.

[0054] A schematic diagram of a WDM network element in an embodim...

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Abstract

The invention provides a method for processing a message and network element equipment. The method comprises the steps of assembling a precise time protocol (PTP) message, and inserting the PTP message into a reserved byte spent by an optical transmission unit (OTU) frame or mixing the PTP message into an Ethernet message to transmit. According to the method, interaction of the PTP protocol message can be achieved between network elements of a wavelength division network, so that the PTP protocol message can be transferred and analyzed among the network elements, so as to transfer the wavelength division network at a precise time.

Description

technical field [0001] The invention relates to the field of optical wavelength division communication, and relates to a message processing method and network element equipment for realizing time synchronization of all network elements of a wavelength division system and accurate time transmission. Background technique [0002] Traditional TDM (Time Division Multiplex, time division multiplexing) network (PDH (Plesiochronous Digital Hierarchy, quasi-synchronous digital series) / SDH (Synchronous Digital Hierarchy, synchronous digital series) can transmit TDM services (such as E1 / T1) at the same time, can Accurately transmit the clock information, and the receiving end can restore the service according to the extracted clock information. At the same time, the TDM line can also provide a synchronous reference clock for some application networks, and the more common application is the mobile Backhaul (mobile backhaul) network. With WDM (Wavelength Division Multiplexing, wavelengt...

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04J3/06
CPCH04J3/06H04L67/2857H04J3/065H04L29/06993H04J3/0667H04L29/06H04J3/1652H04L69/28H04L67/5683
Inventor 杨明杰张建军吴胜兵
Owner ZTE CORP
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