By the end of this chapter, you should know and be able to explain the following:
What the advantages of MPLS TE are
How OSPF and IS-IS have been extended for MPLS TE
How TE LSPs and their costs are calculated
How traffic is mapped to MPLS TE tunnels
How Fast ReRoute for link and node protection works
How RSVP was extended for MPLS TE
After you have digested these topics, you’ll have a thorough understanding of MPLS traffic engineering.
Traffic engineering (TE), or the ability to steer traffic through a network, has been around for a while, but it was mainly present in ATM or Frame Relay networks. The role of TE is to get the traffic from edge to edge in the network in the most optimal way. ...