真空热试验网络架构的改进

文章针对现有真空热试验网络存在的数据链路可靠性低、发生故障时主/备数据链路切换时间长的问题，提出了一种网络架构的改进方法，即网络核心层采用虚拟交换系统（virtual switching system，VSS）架构，利用以太网通道（multi-ethernet chanel，MEC）方式与汇聚层堆叠设备互联，汇聚层设备到接入层设备利用链路聚合控制协议（link aggregation control protocol，LACP）作链路绑定，实现关键设备和数据链路的冗余，网络单节点或单链路的主/备设备数据链路切换无时延。该架构已在真空热试验网进行了验证，运行效果良好，达到预期效果。

Improvement of the architecture of thermal vacuum test network

This paper addresses the problem of the present vacuum thermal test network architecture with low data link reliability and long time recovery between the active and the standby data links. A new method is proposed to build the network, with the network core layer using the virtual switching system(VSS), the distribution layer equipment having the stackable feature and the core layer equipment being interconnected by the multi-ethernet channel(MEC). The link aggregation control protocol(LACP) is used between the distribution layer equipment and the access layer equipment. This new architecture is tested in the key equipment and the data link redundancy, and the failure recovery time is zero between the active and standby equipments or the active and standby data links. This architecture is deployed and enjoys a good run in practical projects.