现有方案仅考虑了采用单代理结构的前缀缓存和服务器调度来降低骨干网带宽消耗和服务器负载。
Current schemes only considered prefix caching and server scheduling in single proxy architecture to lighten the over-consumption of backbone bandwidth and the overload of server.
在分组交换网络中，分组调度算法在交换机和路由器中决定着分组的服务规则，而接入允许控制算法则决定着带宽资源的预留和释放。
In the packet switching network, packet scheduling algorithms in the routers and switches decide how to serve packets, admission control algorithms decide bandwidth reservation and release.
常见的带宽分配算法如wfq、DRR等分组调度算法存在着诸如计算复杂度高、需在路由器进行每流状态的管理等不足。
General bandwidth allocation algorithms, such as WFQ and DRR, have the shortcomings of high complexity and requirement for the router to manage per-flow state.
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