Protocol unicast manner synchronization method, devices and system

A protocol and unicast technology, applied in the communication field, can solve the problems of consuming system resources, increasing system complexity, and deteriorating network quality. Effect

Active Publication Date: 2012-04-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If you want to maintain this relationship for a long time, you need to consume system resources to maintain it, which will undoubtedly increase the complexity of the system
[0007] 3. To establish a unicast relationship through the request-authorization mechanism, message interaction is required, and there is a certain convergence time
At the same time, the interaction of newly added authentication messages is more susceptible to the deterioration of network quality

Method used

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  • Protocol unicast manner synchronization method, devices and system
  • Protocol unicast manner synchronization method, devices and system
  • Protocol unicast manner synchronization method, devices and system

Examples

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no. 2 example

[0048] refer to figure 2 , the second embodiment of the method for synchronizing the protocol unicast mode of the present invention is proposed, including:

[0049] Step S201, the master device locally configures the loopback address of the port of the slave device.

[0050] Step S202, the master device sends a synchronization message to the slave device port corresponding to the local preset loopback address;

[0051] Step S203, after obtaining the request message from the port of the slave device, perform authentication on the request message from the port of the slave device.

[0052] Step S204, the master device sends a response message to the port of the slave device, so that the slave device performs clock synchronization according to the time stamps of the synchronization message, request message and response message.

[0053] The difference between this embodiment and the first embodiment is that the loopback address (loopback interface address) of the slave device is...

no. 4 example

[0070] refer to Figure 4 , propose a fourth embodiment of the master device 100 for synchronization in the protocol unicast of the present invention, including:

[0071] The configuration module 50 is configured to locally configure the loopback address of the slave device port.

[0072] The first sending module 60 is configured to send a synchronization message to a slave device port corresponding to a locally preset loopback address;

[0073] The authentication module 70 is configured to authenticate the request message from the port of the slave device after obtaining the request message from the port of the slave device.

[0074] The second sending module 80 is configured to send a response message to the port of the slave device, so that the slave device performs clock synchronization according to the time stamps of the synchronization message, the request message and the response message.

[0075] The difference between this embodiment and the third embodiment is that...

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Abstract

The invention discloses a protocol unicast manner synchronization method. The method comprises the steps of: sending a synchronous message to a locally preset slave device corresponding a static address by a master device; and after receiving a request message of a salve device port, sending a response message to the slave device port by the maser device so as to synchronize the slave device according to the time stamps of the synchronous message, the request message and the response message. The invention further provides corresponding devices and a corresponding system. According to the protocol unicast manner synchronization method, devices and system provided by the invention, a complex request-authorization process in the traditional unicast protocol mechanism is eliminated, and the time for establishing a unicast relationship is shortened.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, device and system for synchronizing in protocol unicast mode. Background technique [0002] The IEEE 1588 protocol defines a precision time protocol (Precision Time Protocol, hereinafter referred to as PTP), which is used to synchronize the time and frequency of each network element device in the network. The protocol describes the communication methods for clock synchronization between master and slave devices, including multicast (IEEE, IPV4, IPV6) and unicast (IPV4, IPV6). For the application of unicast mode, the master and slave devices of the system use the unicast negotiation mechanism as described below to communicate. [0003] Unicast negotiation is mainly used to establish the link between the master device and the slave device. When the unicast negotiation mechanism is started, a port (requester) of the slave device can request a port (authorizer) of the ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L7/00H04L29/06H04L29/12
Inventor 刘东甲李波
Owner ZTE CORP
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