Reservation protocols based on bandwidth request messages are prone to collisions during heavy IP traffic load in IEEE 802.16 wireless metropolitan area networks.
在IEEE 802.16无线城域网中，基于带宽请求消息的预约协议在高ip业务负载时易导致预约冲突。
All the protocols such as IPSTB, HSRP and VRRP provide the function of redundance for static route, but they don t provide load balance well.
HSRP和VRRP协议均实现了静态路由的热备份，但都没有很好地解决负载均衡的问题。
Meanwhile, it is required that communication protocols should be able to reduce the load of backbone network, improve throughput and handle network congestion efficiently.
同时，还要求通信协议能减少骨干网负载、具有良好的吞吐性能及高效地处理网络拥塞等。
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