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Intermediate System to Intermediate System (IS-IS) is the foundation of many Service Provider MPLS networks, and has been growing in popularity in the past few years as a viable alternative to running both OSPFv2 and OSPFv3 in today's Enterprise networks. In this course we cover the inner workings of IS-IS, and its implementation on Cisco IOS, Cisco IOS XR, and Juniper JunOS.
