Different Types of TE Design
There are two basic types of TE network design—tactical (deploying TE tunnels as needed) and strategic (deploying a full mesh of TE tunnels in some part of your network). They're really two points along a spectrum, which means that depending on your design goals and network policies, you could do one, the other, or something in between.
Figure 9-4 shows the network design spectrum.
Figure 9-4. Network Design Spectrum
The four points along the spectrum can be described as follows:
IGP— This is what you have today. All paths to destinations are determined by your routing protocol. Changing traffic flows requires changing ...
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