Use of Interior Gateway Protocol (IGP) Metric as a second MPLS Traffic Engineering (TE) Metric
Use of Interior Gateway Protocol (IGP) Metric as a second MPLS Traffic Engineering (TE) Metric
复制标题
使用内部网关协议 (IGP) 指标作为第二个 MPLS 流量工程 (TE) 指标
DOI：
10.17487/rfc3785
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
T. Telkamp
中科院分区：
文献类型：
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作者：
F. L. Faucheur;R. Uppili;Alain Vedrenne;Pierre Merckx;T. Telkamp
本文档描述了如何将内部网关协议（IGP）的现有度量用作流量工程（TE）度量的替代度量，用于多协议标签交换（MPLS）流量工程隧道的基于约束的路由的常见实践。这有效地导致了执行具有一个度量（例如，链路带宽）用于某些流量工程隧道（例如，数据中继），同时优化另一个度量（例如，传播延迟）用于具有不同要求的一些其它隧道（例如，语音中继）。无需扩展或修改方案。本文记录了当前的路由器实现和部署实践。
This document describes a common practice on how the existing metric of Interior Gateway Protocols (IGP) can be used as an alternative metric to the Traffic Engineering (TE) metric for Constraint Based Routing of MultiProtocol Label Switching (MPLS) Traffic Engineering tunnels. This effectively results in the ability to perform Constraint Based Routing with optimization of one metric (e.g., link bandwidth) for some Traffic Engineering tunnels (e.g., Data Trunks) while optimizing another metric (e.g., propagation delay) for some other tunnels with different requirements (e.g., Voice Trunks). No protocol extensions or modifications are required. This text documents current router implementations and deployment practices.