A method, system and device for realizing hybrid networking of multi-clock synchronization technology

Abstract

A method, system and apparatus for implementing hybrid networking of multiple clock synchronization technologies configure one master clock and one or more slave clocks for a synchronization device serving as both a clock synchronization service provider and a clock synchronization service receiver. The synchronization device sends clock source information to the slave clock of a neighboring synchronization device through the master clock, and receives the clock source information from the master clock of the neighboring synchronization device through the slave clock. Wherein, the synchronization devices being in the neighborhood refers to a direct physical connection or a connection across a network which does not support the clock synchronization technology. When a clock source fails in the case of hybrid networking of the physical clock technology and packet clock technology, the present scheme can make a PTP synchronization device perform switching normally and lock other clock sources, thereby solving the problem of the failure of the clock source switching in the case of hybrid networking.

Description

technical field [0001] The invention belongs to the technical field of communication networks, and specifically relates to a system and architecture of a clock synchronization hybrid network, and a clock link topology when two different clock synchronization technologies, a physical clock technology and a packet clock technology, are used in a packet network to form a hybrid network. A method and device for establishing and protecting, and selecting a mixed clock source. Background technique [0002] With the development of wireless communication technology, the telecommunication network has also changed from traditional circuit switching to packet switching. This needs to solve how to realize clock and time synchronization in the packet network. The ITU-T G.826x series standards regulate the use of synchronous Ethernet to realize physical clock synchronization of packet networks; IEEE1588v2 regulates the use of Precision Time Protocol (Precision Time Protocol, PTP for shor...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to propose a multi-clock synchronization technology hybrid networking implementation device, which solves the problems of synchronous network establishment and clock link protection under the mixed networking of different clock technologies

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