An implementation device and method for time synchronization of advanced telecom computer architecture

Abstract

The present invention discloses a device for realizing the system time synchronization of an advanced telecom computer system, which comprises a slave card of an intelligent platform management controller, which is used to submit the warning or state information of a node plate, and a shelf management module, which is used to synchronize the system time of the node plate according to the warning or state information of the node plate. Correspondingly, the present invention also provides a method for realizing the system time synchronization of the advanced telecom computer system. The presentinvention submits the warning or state information of the node plate to the shelf management module by the slave card of the intelligent platform management controller, and according to the submittedthe warning or state information of the node plate, the shelf management module synchronizes the system time of the node plate in a network time protocol server-client mode and / or a customized software message interface mode, thus realizing the time synchronization of the node plate in a shelf and the time synchronization among shefts and increasing the precision of time synchronization and thereliability of a system.

Description

technical field [0001] The invention relates to the technical field of ATCA (Advanced Telecommunications Computing Architecture, advanced telecommunications computer system), in particular to a device and method for realizing time synchronization of an ATCA system. Background technique [0002] A modern communication system generally consists of multiple network elements, and each network element involves multiple chassis, and each chassis involves multiple node boards. Ensuring the time synchronization between the network elements, chassis, and node boards is of great significance for calculating the start time of user communication within and between networks, and determining the time point of network management alarms. [0003] ATCA (Advanced Telecommunications Computing Architecture, Advanced Telecommunications Computer Architecture) is a set of open industry standards for building high-performance telecommunications and data communication systems. It was developed by P...

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Problems solved by technology

[0006] 1. There is no redundant channel for system time synchronization. If the connection between the system management module and the external NTP server is interrupted, the external time cannot be synchronized. The CMOS clock of the system management module must be enabled. Because the CMOS crystal has poor stability and is sensitive to environmental factors, the clock The accuracy is very low, and the high-angle clock reference provided by the telecommunications field is not fully utilized, and it is easy to form a single point of failure;

[0007] 2. Because each node board obtains the system time through the intelligent management interface, which involves the process of reading, saving, re-reading, and re-saving, which brings unreliable and uncontrollable delay to time processing, so the system time synchronization accuracy is not good. High, the error will be high and low;

[0008] 3. There is no specification for time synchronization in the case of chassis cascading;

[0009] 4. Since the system management module is directly connected to the external network, there is no way to isolate it from the internal LAN, and the network security cannot be guaranteed;

[0010] 5. Only through the intelligent management interface to obtain the system time, there is no way to use the BASE interface to form an internal NTP server and client. If the management interface is interrupted, there will be no redundant channel for time synchronization;

[0011] In summary, the existing ATCA system time synchronization implementation technology obviously has inconvenience and defects in actual use, so it is necessary to improve it

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