Tactical TE Design
In the tactical model, you build TE LSPs to work around congestion. The key things to deal with in this model are as follows:
When you decide to build TE LSPs
Where you put them
When you take them down
What nifty TE features you can use
The following sections sift through all four considerations.
One thing that this section assumes is that you have already configured MPLS TE on every link in your network, as well as in your IGP. In other words, you have everything you need to use MPLS TE tunnels already in place, except for the TE tunnels themselves. When you first decide to roll out MPLS, even if it's not for TE but for VPNs or some other reason, it can't hurt to enable MPLS TE everywhere (IGP and on interfaces) so that when ...
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