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中文摘要：
针对CABO（ConcurrentArchitecturesareBetterThanOne）网络体系结构下虚拟网内部路由协议可定制的特点设计了流量分配路由算法，对于运营带宽敏感业务的虚拟网络采用路由算法解决流量分配问题，提出一种新的指定路由机制，利用改进的多商品流问题作为流量分配路由算法，以流量均衡、收益最大为分配目标；仿真实验结果表明，采用基于指定路由的流量分配路由机制较传统负载均衡路由算法获得的链路利用率更高、网络性能（丢包率、延迟）更好，并可接受更多的业务请求接入．
英文摘要：
The routing protocols in Virtual networks can be customized under CABO（Concurrent Architectures are Better Than One） architecture. For the virtual network with bandwidth sensitive service, a traffic splitting and assigning algorithm is proposed. With a newly proposed designated routing algorithm, route computing with bandwidth allocation can be reduced to the multi-commodity flow problem. By improving the problemg constraint set, the traffic can be better assigned. The assignment mechanism makes better per- formance （ time delay, package loss rate and service accommodation ） rather than the conventional load balancing routing protocols.
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