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随着第三层交换机价格的不断大幅下降——Extreme Networks公司的新型Summit 48的每个第三层线速路由端口的价格仅为150美元,这些智能化设备正在变成避免因QoS(服务质量)所引发的问题的一种途径。为了避免那些困扰RSVP(资源保护协议)和QoS的问题一一缺乏应用程序的支持,COS(服务级别)不以保证针对具体帧的性能为目标。它所做的承诺仅与网络中的其它通信量有关,即不保证任务关键通信量可得到某一特定带宽,但可以保证它们会得
As the price of Layer 3 switches continues to plummet - at ExxonMobil’s new Summit 48, which costs just $ 150 per Layer 3 wire-speed routed port, these smart devices are becoming less expensive due to QoS (Quality of Service ) Aroused the problem of a way. In order to avoid the problems that plague RSVP (Resource Protection Protocol) and QoS - lack of application support, COS (service level) does not aim at guaranteeing performance on a specific frame. The promises it makes are only related to other traffic in the network, that is, there is no guarantee that mission-critical traffic will receive a certain amount of bandwidth, but it is guaranteed that they will