Cisco Nexus 9000 シリーズ データセンター スイッチ ガイド

APIC APIC P P Cisco Nexus 9000 2 IT Cisco Nexus 9000 ····································· p2 Cisco Nexus / ······················· p3 Cisco Nexus 9500 ·································· p4 Cisco Nexus 9300-EX/9200 ··················· p6 Cisco Nexus ·································· p8 ······················· p10 ······································ p12 Cisco Application Centric Infrastructure

[Syncrea]

ビッグデータやMLなんかでDC内部の通信（東西）の重要性が高まり、今までの3階層モデルだとコアまで行って折り返し（南北）するので合ってないって事なんですね。しかもスケーラビリティも容易と。