The architecture consists of six Cisco catalyst switch modules with fourteen internal ports and four external 1gb ports each.
这个体系结构由6个Cisco catalyst交换机模块组成，每个模块有14个内部端口和4个外部的1gb端口。
In the process of teaching practice, the implementation of the six big teaching modules is completed in four teaching steps.
在教学实践过程中，六大教学模块的实施是渗透在四个教学环节中完成的。
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