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MSAP(多业务接入平台)系统已获得广泛应用,维护已开通的MSAP系统越来越重要,工作量也越来越大,尤其是对远端MSAP设备升级。文章提出一种实现MSAP全节点在线自动升级的方法,该方法由MSAP的DMU(数据交叉连接管理单元)发起,DMU通过标准FTP(文件传送协议)从服务器端下载升级程序,并且进行数据校验。MSAP系统中的每个节点依靠存储转发机制将升级程序发往下级设备。同时依靠回告机制,DMU能够监控整个升级过程并确保升级成功。结果表明,MSAP系统中的设备能够有效、稳定地进行自动在线升级,用户通过DMU串口可以监控到设备升级过程。该方法适用于各种分层分级的系统。
MSAP (Multiservice Access Platform) system has been widely used. It is more and more important to maintain the existing MSAP system and the workload is also increasing, especially for upgrading remote MSAP devices. This paper proposes a method to realize online auto-upgrade of all nodes of MSAP. The method is initiated by DMAP (Data Cross-Connect Management Unit) of MSAP. DMU downloads upgrade program from server through standard FTP (File Transfer Protocol) and performs data verification . Each node in the MSAP system relies on a store-and-forward mechanism to send the upgrade to the next-level device. At the same time relying on the mechanism, DMU can monitor the entire upgrade process and ensure the upgrade is successful. The results show that the devices in MSAP system can be automatically and online upgraded effectively and stably, and users can monitor the device upgrade process through the serial port of DMU. The method is suitable for a variety of hierarchical system.