域间流量工程与域内流量工程的比较

根据作用的范围不同，流量工程可分为域间流量工程与域内流量工程。域间流量工程与域内流量工程作用的范围不同，研究问题的侧重点和难度不同，但是它们具有通用的处理模型，并且二者是紧密联系和相互依存的。同时考虑域间流量工程与域内流量工程，才能保证研究问题的全面性与准确性。

Comparison Between Inter-domain Traffic Engineering and Intra-domain Traffic Engineering

Traffic engineering can be classified as inter-domain traffic engineering and intra-domain traffic engineering. They are concerned with different range of Internet and different sides of problems. And inter-domain traffic engineering is inherently more difficult than intra-domain traffic engineering. But they have same general process model. What’s more, they depend on each other with tight relations. When the problem of traffic engineering is researched on, they should be considered at the same time.