Title from resource description page (viewed Aug. 13, 2014).
Presenter, Jeff Doyle.
"Understanding the Shortest Path First (SPF) Algorithm LiveLessons-Networking Talks explains basic SPF calculation through a combination of bullet points and whiteboard demonstrations. The lessons also demonstrate how SPF takes into account Equal-Cost MultiPath (ECMP) and multi-access links such as Ethernet. By understanding SPF calculations, engineers can better understand and troubleshoot Link State protocols."--Resource description page.
CL0500000466 Safari Books Online
Paths and cycles (Graph theory) Trees (Graph theory) Algorithms.