基于定长帧的组播QoS路由技术

为高效利用网络资源且平衡负载,结合物理帧时槽交换技术,提出了基于定长帧的组播机制和QoS路由算法MRBP.该算法在满足带宽和时延要求的基础上,最小化时延和平衡节点负载,达到组播树总体时延较小并优化利用网络资源的目的.仿真结果表明,基于该算法建立的组播树具有较好的网络负载平衡性,并能够对服务质量提供较好的保证.

Multicast QoS Routing Technology Based on Fixed-Length Frame

To effectively utilize network resources and balance the load, a multicast mechanism based on a fixed-length physical frame was proposed, and a QoS (quality of service) -aware multicast routing algorithm was designed, named as MRBP (multicast routing load-balancing algorithm based on Ethemet-oriented physical frame timeslot switching). This algorithm minimizes the delay and balances the load to construet a multicast tree with a small delay and utilige network resources more reasonably under the condition of satisfying the bandwidth and delay constraints. Simulation results show that a multicast tree constructed by the proposed algorithm instead of other approaches has a good load-balancing performance and is able to provide a QoS guarantee.