The video shows a way of reducing convergence time of LDP on Cisco router with targeted LDP. You will see how targeted LDP is able to maintain LDP session to a neighbor router even after a link to that router has gone down so they do not need to go through session establishment and label exchange after link recovery, and, hence, improve convergence time. While targeted LDP requires specific configuration between two LDP peers, session protection allows you to create targeted LDP to all neighbors with essentially a single command and this will also be covered in this video.