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校园网既有一般网络设计的特点,又有着其特殊性,除了一般网络所必需的可靠性、稳定性和安全性等条件外,在具体校园网建设时,还应该考虑其带宽的特殊性(VOD等需要高带宽)以及Qos保证等。此外,由于学校特别是普教系统受到资金上的限制,如何预留扩展空间和进行投资保护,以满足信息量的增长和变化需要,成为校园网络建设过程中需要考虑的重要因素。早期的校网建设所采用的设备大多是二层交换,随着校园网应用中数据、话音、影像多媒体的传输需要的逐渐增
Campus network not only has the characteristics of the general network design, but also has its particularity, in addition to the general network of the necessary reliability, stability and security conditions, in the construction of specific campus network, it should also consider the particularity of its bandwidth VOD and other high-bandwidth needs) and Qos guarantee. In addition, due to the financial constraints of schools, especially the general education system, how to reserve space for expansion and investment protection to meet the needs of the growth and change of information content has become an important factor that needs to be considered in the construction of campus network. Early school network equipment used mostly by the exchange of second floor, with the campus network applications data, voice, video and multimedia transmission needs gradually increased