This paper analyzes convergence times of IS-IS and OSPF link-state routing protocols which are usually compared in the context of large Internet service provider networks. The paper shows test results done in controlled environment and simple topology with 5, 400, 800, 1600 and 3200 routes in the network with default configuration as well as for optimized configuration. Regardless of many common features that IS-IS and OSPF share as link-state protocols, IS-IS is still considered to be more suitable for large service provider networks. This paper focuses just on expected convergence times and on how that time changes in relationship to number of routes in the network.

Keywords: IS-IS, OSPF, vreme konvergencije
Published on website: 31.10.2017