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邮电通讯系统 2022-06-29 51 0star收藏 版权: . 保留作者信息 . 禁止商业使用 . 禁止修改作品
由于具有强大的功能和高效的性能,SoftPerfectBandwidthManager在Windows下的带宽管理软件中可谓是一枝独秀,我也一直用它来实现内部用户访问Internet的带宽管理。不过终于出现了可以和BWM相抗衡的带宽管理软件:BandwidthSplitter(以下简称BS)。和BWM不同,BS是专为ISAServer所开发的,它主要具有以下特性:和ISAServer紧密集成,并且支持远程管理;支持实时带宽限制和流量总额限制;支持针对IP和用户账户进行限制;支持限制分组总额或对分组中的单个IP/用户进行限制;可以限制用户的并发连接请求数量,这个是对ISAServer连接限制缺陷(只具有两种连接限制类别)的极好补充;支持对Web缓存访问不进行带宽限制;可以实时监视每条规则运行的状态和细节;性能极高,对系统性能影响极低;对于最终用户是透明的,无需用户安装任何客户端软件;支持HTTP加.速功能;和BWM相比,BS主要具有以下优点:和ISAServer紧密集成(当然这也是它的劣势,它只能和ISAServer一起使用);支持对用户账户进行带宽控制;支持限制用户的并发连接请求数;性能极高,对系统性能影响极低;支持HTTP加.速功能;支持对Web缓存访问不进行带宽限制;BS和ISAServer的紧密集成主要体现在以下四个方面:BS的配置数据与ISAServer的配置数据存储在一起;BS的管理控制台与ISAServer的管理控制台集成在一起;BS作为ISAServer的应用程序筛选器运行;BS使用ISAServer中的策略元素来作为自己的策略元素;BS只是作为ISAServer的应用程序筛选器运行,它不会影响ISAServer的原有规则和配置,它只是在ISAServer的基础上提供了带宽管理功能,但是它比ISAServer的防火墙策略具有更低的优先级,因此如果要对用户实行带宽管理,你首先必须在ISAServer的防火墙策略中允许这个用户的访问。另外,BS无法处理非TCP/UDP协议如ICMP协议等等,同时BS不会处理本地主机和其他非外部网络(如内部网络、DMZ网络)之间的连接。

(Due to its powerful functions and efficient performance, softperfectbandwidthmanager is the only one among the bandwidth management software under windows. I have always used it to manage the bandwidth of internal users accessing the Internet. However, a bandwidth management software that can compete with BWM has finally emerged: bandwidthsplitter (hereinafter referred to as BS). Different from BWM, BS is specially developed for isaserver. It mainly has the following characteristics: it is closely integrated with isaserver and supports remote management; Support real-time bandwidth limit and total traffic limit; Support restrictions on IP and user accounts; Support to limit the total amount of packets or limit a single ip/ user in a packet; It can limit the number of concurrent connection requests of users, which is an excellent supplement to the isaserver connection restriction defect (only two connection restriction categories); Support no bandwidth restriction for Web cache access; It can monitor the running status and details of each rule in real time; Extremely high performance and low impact on system performance; It is transparent to the end user and does not require the user to install any client software; Support HTTP plus Speed function; Compared with BWM, BS has the following advantages: it is closely integrated with isaserver (of course, this is also its disadvantage. It can only be used with isaserver); Support bandwidth control for user accounts; Support to limit the number of concurrent connection requests of users; Extremely high performance and low impact on system performance; Support HTTP plus Speed function; Support no bandwidth restriction for Web cache access; The close integration of BS and isaserver is mainly reflected in the following four aspects: the configuration data of BS and isaserver are stored together; The management console of BS is integrated with that of isaserver; BS runs as the application filter of isaserver; BS uses the policy elements in isaserver as its own policy elements; BS only operates as an application filter of isaserver. It will not affect the original rules and configuration of isaserver. It only provides bandwidth management based on isaserver, but it has lower priority than the firewall policy of isaserver. Therefore, if you want to implement bandwidth management for users, you must first allow the user's access in the firewall policy of isaserver. In addition, the BS cannot handle non tcp/udp protocols, such as ICMP Protocol, and the BS will not handle the connection between the local host and other non external networks (such as internal network and DMZ network).)

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