求翻译：论文介绍了校园网设计的需求分析，确立建设校园网的目标，采用分层设计的方法，将校园网分成核心层、汇聚层、接入层三个层次。是什么意思？

This paper introduces the campus network design, demand analysis, to establish the goal of building a campus network, using the method of hierarchical design, the campus network into the core layer, convergence layer and access layer three levels.

The thesis introduced the need of the campus net design the analysis, the establishment constucts the campus net of target, the method that adopt the layering the design, be divided into the campus net core layer,remit to gather the layer and connect into three layers of layer.

The paper introduced the campus net designs the demand analysis, the establishment constructs the campus net the goal, uses the lamination design the method, divides into the campus net the core level, the gathering level, the turning on level three levels.

Needs analysis of the paper describes the design of the campus network, establishing the goals of constructing campus network, uses a hierarchical design method, campus networks into the core, aggregation layer, three levels of access.

正在翻译，请等待...