This Recommendation provides an overview of the Recommendations on Traffic Engineering, specifically those numbered between E.490 and E.799, which constitute the main body of ITU-T Recommendations on traffic engineering. This Recommendation presents the four major traffic engineering tasks, classifies the traffic engineering Recommendations according to the task to which they are related, provides a brief overview of each Recommendation and describes the interrelation between Recommendations. It is intended as an introduction for those practitioners who wish to apply ITU-T Recommendations on traffic engineering.