2Tier Architecture and QoS Signaling

1
Two-plane and Three-tier Framework Architecture
for NSIS
Zhigang Kan, Jian MaZhigang.kan_at_nokia.comJian.J
.Ma_at_nokia.com
2
Assumption

• One can do a competent job of network
  configuration provisioning in the network
• Keep backbone networks stupid simple
• Intelligent edge built between backbone and
  access network
• Per-flow QoS guarantee in access network
• Per-class QoS guarantee in backbone network

3
Scopes

• Integrating NSIS entities, NSIS signaling, NSIS
  negotiation in a framework
• Identifying what NSIS should do in which part of
  the network
• Identifying what NSIS entities should be added in
  the existing network infrastructure

4
Terms

• ND NSIS Domain
• NDRM Agent ND Resource Management Agent
• Resource management function in a ND
• AN Access Network
• ANRM Agent AN Resource Management Agent
• Resource management function in a AN

5
Two-plane Three-tier NSIS framework

• Two-plane
• Control plane
• Transport plane
• Three-tier in Control plane
• Inter-NDs NSIS
• Intra-ND NSIS
• Intra-AN NSIS
• NSIS signaling
• NSIS negotiation

6
Control Plane 3-Tier Architecture and NSIS
Signaling
Inter-ND Signaling
Intra-ND Signaling
ND NSIS Domain
AN Access Network
NDRM Agent ND Resource Management Agent
ANRM Agent AD Resource Management Agent
D/C Diameter/COPS
NE NSIS Entity
EN2E End-to-Edge NSIS Signaling
E2EN End-to-End NSIS Signaling
7
Transport-Plane of NSIS Framework
End-to-End QoS
ND NSIS Domain
NE NSIS Entity
8
NSIS Signaling NSIS negotiation

• End-to-Edge NSIS negotiation
• NI lt--gt Default Router
• NR lt--gt Default Router
• End-to-Edge NSIS signaling
• End-to-end NSIS negotiation
• NI lt--gt NR
• End-to-end NSIS signaling
• Policy-based NSIS Mechanisms
• NDRM Agent lt--gt NDRM Agent (Inter-ND)
• NDRM Agent lt--gt ANRM Agent (Intra-ND)
• ANRM Agent lt--gt Default Router
• COPS / Diameter

9
Conclusion

• Works Should be done mainly in Access network and
  Intelligent Edge
• Per-flow QoS guarantees in AN
• Aggregate-flow QoS guarantees
• NSIS signaling includes
• End-to-Edge NSIS signaling
• End-to-End NSIS signaling
• Inter-NDs NSIS signaling
• Intra-ND NSIS signaling
• In-band and out-of-band
• In-band signaling in Access network
• Out-of-band signaling in backbone network

10
Next steps

• Identify the information exchanged in different
  tiers
• Negotiation procedures

11
Thank you. Comments please.