This chapter contains basic IS-IS TE configuration examples.

A TE link represents an IS-IS/OSPF link state advertisement and a link state database of certain physical resources and their properties between two nodes. Typically, a TE link is advertised as an adjunct to a “regular” OSPF or IS-IS link. That is, an adjacency is brought up on the link. When the link is up, both the regular IGP properties of the link (for example, the SPF metric) and the TE properties of the link are then advertised.