基于FreeBSD实现校园网上网带宽控制

Implementation of Campus Network Bandwidth Control based on FreeBSD

校园网络的出口带宽有限,需要对每个用户的带宽进行控制。笔者基于广东省新闻出版高级技工学校校园网的实际情况,分析校内用户上网带宽需求的特点,制定了流量控制策略,将开源操作系统+防火墙(FreeBSD+IPFW)作为流量控制的技术解决方案,讲述了IPFW的带宽控制配置方法和运行管理。总结了FreeBSD+IPFW是一个稳定、高性能、低成本的,特别适合应用于中小型校园网、小区带宽控制的解决方案。

Campus network bandwidth is limited,the need to control the bandwidth of each user.In this paper,the actual situation of Guangdong Press and Publication Technician College network based on the analysis of characteristics of Campus Internet users bandwidth requirements,developed a flow control strategy,using open-source operating system+firewall(FreeBSD+IPFW)as a flow control scheme,describes the IPFW bandwidth control allocation method and operation management.It is concluded that FreeBSD+IPFW is a stable,high performance and low cost,especially suitable for small and medium sized campus network and cell as the solution of bandwidth control.