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This draft is a work item of the Link State Routing WG of the IETF.

        Title           : IS-IS Routing for Spine-Leaf Topology
        Authors         : Naiming Shen
                          Les Ginsberg
                          Sanjay Thyamagundalu
        Filename        : draft-ietf-lsr-isis-spine-leaf-ext-01.txt
        Pages           : 17
        Date            : 2019-03-08

   This document describes a mechanism for routers and switches in a
   Spine-Leaf type topology to have non-reciprocal Intermediate System
   to Intermediate System (IS-IS) routing relationships between the
   leafs and spines.  The leaf nodes do not need to have the topology
   information of other nodes and exact prefixes in the network.  This
   extension also has application in the Internet of Things (IoT).

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