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System and method for routing stability-based integrated traffic engineering for gmpls optical networks
System and method for routing stability-based integrated traffic engineering for gmpls optical networks
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机译:gmpls光网络中基于路由稳定性的集成流量工程的系统和方法
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摘要
A system and method of implementing Routing Stability-Based Integrated Traffic Engineering ("RITE") for use in an MPLS/optical network is described. Incoming network traffic is classified as high priority ("HP"), which requires absolute routing stability, or low priority ("LP"), which can tolerate limited rerouting. In accordance with one embodiment, HP traffic trunks are mapped on to direct LCs and are rerouted only in the event of an LC teardown due to poor traffic utilization. LP traffic trunks are mapped on to direct LCs if available; otherwise, they are mapped on to multi-hop LSPs with appropriate O/E/O conversions at the edge nodes serving as intermediate hops. Each LP traffic trunk is associated with a rerouting timer that is set at the time of rerouting so as to prevent another rerouting of the trunk until the timer expires.
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机译:描述了一种实现在MPLS /光网络中使用的基于路由稳定性的集成流量工程(RITE)的系统和方法。传入的网络流量分为高优先级(“ HP”)和低优先级(“ LP”),高优先级(HP)需要绝对的路由稳定性,而低优先级(LP)可以允许有限的路由。根据一个实施例,HP话务干线被映射到直接LC上,并且仅在由于不良话务利用而导致LC拆解的情况下才重新路由。 LP业务干线将映射到直接LC(如果可用)。否则,它们会在充当中间跳的边缘节点上通过适当的O / E / O转换映射到多跳LSP。每个LP业务干线都与在重路由时设置的重路由计时器相关联,以防止中继线再次重路由直到计时器到期。
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