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Clock synchronizing method and first part and second part using this method

A clock synchronization and component technology, applied in the network field, can solve the problems of complex implementation, short connection distance, and difficult implementation of respective offsets.

Inactive Publication Date: 2007-03-07
NEW H3C TECH CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] The above-mentioned invention can achieve clock synchronization between multiple terminals. However, in the above-mentioned method, it is complicated to determine the respective offsets between the master clock of the master terminal and the clock of each slave terminal. In particular, IAC and NFC belong to the same An OAA architecture, in other words, at least one smart board connected to a centralized switching device to form an OAA belongs to one device. The connection distance between them is very short, and the communication time between the two parties is very short, usually at the millisecond level. Determining the respective offsets between NFC and each NFC clock is not easy to achieve using the above method
That is, the above method is not suitable for establishing clock synchronization between IAC and NFC

Method used

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  • Clock synchronizing method and first part and second part using this method
  • Clock synchronizing method and first part and second part using this method
  • Clock synchronizing method and first part and second part using this method

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Embodiment Construction

[0034] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0035]Fig. 1 shows a typical structure of the OAA system applied in the present invention. The ILC connecting NFC and IAC in OAA usually includes a control interface and a data plane interface. The control interface can be an interface that supports flow mode such as an asynchronous serial port, a synchronous asynchronous serial port, or a separate Ethernet physical port, or it can be shared with the data plane. physical port. The control interface on the NFC is connected to the control interface on the IAC for communication of control information, and the data plane interface on the NFC is connected to the data plane interface on the IAC for communication of data information. In addition, an OAA system may include multiple IACs that perform different functions.

[0036] In the OAA system, the forwarding function is completed by NFC, and the additional service proc...

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Abstract

This invention relates to clock synchronous method to fulfill synchronous clock between first and second parts, which comprises the following steps: a, second part receives clock message from first part with current time in the message; b, the second part coordinates time according to second part. This invention also discloses one first and second part of this method.

Description

technical field [0001] The present invention relates to a clock synchronization method in the network field, in particular to a method for clock synchronization between NFC (Network Forwarding Component, network forwarding component) and IAC (Independent Application Component, independent business component) in OAA (Open Application Architecture, open application architecture) and Apply the method to IAC and OAA. Background technique [0002] With the rapid development and gradual refinement of network services, traditional network devices are no longer handy in handling these services. For example, devices are required to be able to forward data and access voice, and devices are required to perform load sharing and content security filtering. At this time, it is difficult for an independent technology manufacturer to provide all the services required by users at the same time. For this reason, users generally need to purchase equipment from multiple manufacturers and conn...

Claims

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Application Information

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IPC IPC(8): H04L7/027H04L12/58
Inventor 陈国华王飓
Owner NEW H3C TECH CO LTD
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