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Title : Two-plane and Three-tier Framework Structure for NSIS
Author(s) : Z. Kan, J. Ma
Filename : draft-kan-qos-framework-01.txt
Pages : 17
Date : 24-Jul-02
This document proposes a 'two-plane three-tier' framework structure
for NSIS signaling. In this framework the Access Networks are
connected with wired backbone through default routers. It is
assumed that one can do a competent job of network configuration &
provisioning in the backbone network, and just keeps backbone
networks stupid simple.Resource policies which are implemented in
inter-NSIS Domains and intra-NSIS Domain, NSIS Signaling and NSIS
negotiations are in the control plane. User data is transported in
the transport plane. COPS/Diameter is used for exchanging resource
policies.
Three-Tier NSIS signalings mean that NSIS signaling should be done
in three levels. The first level is Inter-NSIS Domain NSIS
signaling across neighboring NSIS Domains, and the second level is
Intra-NSIS Domain NSIS signaling inside each NSIS Domain while the
third level is end-to-edge NSIS signaling and end-to-end NSIS
signaling. The aggregate traffic crossing NSIS Domain borders is
served according to relatively stable, long-lived bilateral
agreements. End-to-end QoS support is achieved through the
concatenation of such bilateral agreements.
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