Topic summary
OSPF
Extracted from the Wikipedia article Open Shortest Path First.
Traffic engineering
OSPF-TE is an extension to OSPF, extending the expressivity to allow for traffic engineering and use on non-IP networks. Using OSPF-TE, more information about the topology can be exchanged using opaque LSA carrying type–length–value elements. These extensions allow OSPF-TE to run completely out of band of the data plane network. This means that it can also be used on non-IP networks, such as optical networks.