Juniper Mist defines both3-stageand5-stage IP Closarchitectures for campus and data-center fabrics. The5-stage IP Closdesign adds scalability by introducingspineandsuper-spinelayers above the leaf layer, enabling large campus or aggregation environments.
“The 5-stage IP Clos topology extends the 3-stage design by introducing spine and super-spine tiers. It is ideal for large campus environments requiring additional capacity and hierarchical scaling.”
Option A:Incorrect — Clos is a topology, not a routing protocol.
Option B:Incorrect — VXLAN/EVPN encapsulation operates over Clos but does not define it.
Option C:Incorrect — that describes a traditional three-tier campus (core/distribution/access), not a Clos.
Option D:Correct— the5-stage IP Closis a hierarchical, scalable Clos topology withspine and super-spinelayers used in large campus or data-center networks.
[References:, Juniper Mist AI for Wired – Campus Fabric IP Clos Architecture Guide, Juniper Validated Design – 3-Stage and 5-Stage IP Clos Campus Fabrics, Juniper Mist AI Cloud – EVPN-VXLAN Fabric Deployment, ===========, ]
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