Using MPLS TE in Real Life
Three basic real-life applications for MPLS TE are
Optimizing your network utilization
Handling unexpected congestion
Handling link and node failures
Optimizing your network utilization is sometimes called the strategic method of deploying MPLS TE. It's sometimes also called the full-mesh approach. The idea here is that you build a full mesh of MPLS TE-LSPs between a given set of routers, size those LSPs according to how much bandwidth is going between a pair of routers, and let the LSPs find the best path in your network that meets their bandwidth demands. Building this full mesh of TE-LSPs in your network allows you to avoid congestion as much as possible by spreading LSPs across your network along bandwidth-aware paths. ...
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