Epidemic routing and Probabilistic routing can provide higher delivery probability and reducing delays, they cost too much network traffics.
蔓延路由和概率路由能提供较高的报文投递率，较小的投递延迟，但是开销很大。
Recently much research shows that many kinds of network traffics are self-similar, which can't be described accurately by traditional traffic models based on Poisson distribution.
然而近年来研究发现网络流量具有自相似性，传统的基于泊松分布的流量模型已不能很好地表述这一特征。
In an integrated optical network, traffics with higher priority should have more opportunities to access the network resources.
多级业务光网络中，较高优先级的业务应具有较高的资源使用权限。
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