ZNA: A Six-Layer Network Architecture for New Generation Networks —— Focusing on the Session Layer, the Network Layer, and Cross-Layer Cooperation ——

Fumio TERAOKA  Sho KANEMARU  Kazuma YONEMURA  Motoki IDE  Shinji KAWAGUCHI  Kunitake KANEKO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E97-B   No.12   pp.2583-2595
Publication Date: 2014/12/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E97.B.2583
Type of Manuscript: INVITED PAPER (Special Section on Technologies and Architectures for Improving Scalability, Reliability, and Robustness for Future Information Networks)
Category: 
Keyword: 
clean slate approach,  session layer,  ID/Locator split,  cross-layer cooperation,  

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Summary: 
Using “clean-slate approach” to redesign the Internet has attracted considerable attention. ZNA (Z Network Architecture) is one of clean-slate network architectures based on the layered model. The major features of ZNA are as follows: (1) introducing the session layer to provide the applications with sophisticated communication services, (2) employing inter-node cross-layer cooperation to adapt to the dynamically changing network conditions, (3) splitting the node identifier and the node locator for mobility, multi-homing, and heterogeneity of network layer protocols, (4) splitting the data plane and the control plane for high manageability, and (5) introducing a recursive layered model to support network virtualization. This paper focuses on the first three topics as well as the basic design of ZNA.