1
Scope
2 References
2.1 Normative References
2.1.1 ITU-T
2.1.2 ISOC/IETF
2.2 Informative References
2.2.1 ATM Forum
2.2.2 ISOC/IETF
3 Terms and definitions
4 Abbreviations and acronyms
5 Generic requirements
6 Framework architecture
6.1 Network architecture
6.1.1 Network and service interworking
6.2 Protocol architecture
6.2.1 General description of IPOA protocol reference model
6.2.2 Functional description of IPOA protocol reference model
7 IP services
7.1 Mapping of IP QoS with ATM
7.1.1 Introduction
7.1.2 Network model to support QoS-aware IP services
7.1.3 List of service mapping functions
7.1.4 Mapping of IP integrated services to ATM services
7.1.5 Mapping IP differentiated services to ATM services
7.2 IP Virtual Private Networks
(IP-VPNs)
7.2.1 Scope of IP-VPN
7.2.2 Definition of IP-VPN service
7.2.3 Requirements for IP-VPN service
8 Preferred network solution
8.1 Recommended approach
8.1.1 Small networks versus large networks
8.1.2 ATM versus non-ATM bearer
8.1.3 Static versus dynamic control
8.1.4 ATM versus non-ATM control in IPOA
8.1.5 Traffic engineering of IP services
8.1.6 Build on existing investments
8.1.7 VPN services support
8.1.8 QoS aspects
8.2 Framework for MPLS over ATM in
public networks
8.2.1 Architectural model
8.2.2 Control protocol for MPLS over ATM
Appendix I – Approaches for IP over ATM
I.1 Classical IP over ATM
I.1.1 Next Hop Resolution Protocol (NHRP)
I.1.2 Use of local ATM shortcut
I.2 Multi-Protocol Over ATM (MPOA)
I.3 Multi-Protocol Label Switching (MPLS)
Appendix II – Guidelines for mapping services to ATM
connections
II.1 Mapping Intserv services to ATM
connections
II.1.1 Mapping of Guaranteed Service (GS) to ATM
II.1.2 Mapping of Controlled Load Service (CLS) to ATM
II.2 Mapping Diffserv services over ATM
II.3 Intserv in MPLS over ATM
II.4 Diffserv in MPLS over ATM
II.4.1 LSP set-up procedures
II.4.2 Label forwarding procedure
II.4.3 The mappings between <PSC, CLP> and PHB
II.4.4 Implementation Considerations
Appendix III – Possible evolution
scenarios to MPLS for IP over ATM in public networks
III.1 Introduction
III.2 Proposed Scenarios
III.2.1 Established full-service carrier
III.2.2 Established voice service carrier
III.2.3 IP-centric new carrier
III.2.4 Full-service new carrier
III.3 Hybrid ATM Network
III.3.1 Technologies for Hybrid ATM Networks
III.3.2 Networks using MPLS-over-PVCs
III.3.3 Networks using Virtual Trunks
III.3.4 Networks using VCID
Appendix IV – Example methods for IP-VPN support in
MPLS/ATM public network
IV.1 Introduction
IV.2 Scenario 1
IV.2.1 Simple network configuration
IV.2.2 Network components
IV.3 Scenario 2
IV.3.1 Architectural overview
IV.3.2 Network components
Appendix
V – Bibliography