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提出了一种新的基于可分配流量的MPLS网络流级负载均衡机制,该机制考虑到实际网络中的背景业务,每个LSP模拟为M/G/1处理器共享队列。根据每个LSP上的延迟和丢包率,来计算成本函数,并对这个成本函数最小化。每个LSP上的可分配流量与最小化成本函数成反比。仿真结果表明该算法具有更好的公平性,能够在多径之间平衡地分配流量。网络中的吞吐率得到显著的提高,丢包率也有所下降。
A new flow-based MPLS network flow-level load balancing mechanism based on allocatable traffic is proposed. This mechanism takes into account the background traffic in the actual network, and each LSP is simulated as a M / G / 1 processor shared queue. The cost function is calculated based on the delay and packet loss rate on each LSP, and this cost function is minimized. The distributable traffic on each LSP is inversely proportional to the minimized cost function. The simulation results show that the proposed algorithm has better fairness and can distribute the traffic evenly between multipaths. Throughput in the network has been significantly improved, packet loss rate also declined.