说明：  IBM刀片中心L2-3以太网交换机 􀁺 IBM权威的技术文档 􀁺 不是简单的产品手册，而是一本关于网络基础知识的教材 􀁺 不仅仅介绍了交换机，而且详细解释了IBM 刀片中心的网络架构
(IBM Blade Center L2-3 Ethernet switch 􀁺 IBM 􀁺 authoritative technical documentation is not a simple product manuals, but a basic knowledge about the network not only introduce the teaching 􀁺 switches, and a detailed explanation of the IBM Blade Center Network Architecture)