按流量计费的帧中继计费方式并不是广为人知的,但它却能在节省用户的资金的同时提供更多的冗余。更有意义的是,这种计费方式可能改变用户配置他们的帧中继网络的方式。 在传统的帧中继计费中,用户为每条帧中继连接付费,这样在建立网状网络时的成本就非常高,因为在任意两个站点之间至少有一条单向通道。而在按流量计费的方案中,用户需要支付的总费用是由用户传输的数据量来决定的。这样在建立具有较高的性能和可靠性的完全网状结构的网络时就会更实惠些。 但帧中继服务最初问世时,传统的计费方式还是不错的。用户们从专线环境转 It is not well-known that frame-rate charging is based on traffic, but it provides more redundancy while saving users money. More significantly, this type of billing may change the way users configure their Frame Relay network. In traditional Frame Relay billing, users pay for each Frame Relay connection, which can be very costly to set up a mesh network because there is at least one unidirectional channel between any two sites. In the scheme of charging by traffic, the total cost that the user needs to pay is determined by the amount of data transmitted by the user. This will be more affordable when establishing a fully meshed network with high performance and reliability. However, the original advent of Frame Relay service, the traditional billing method is not bad. Users from the green environment turn