1 Scope
1.1 Framework and layout of this Recommendation
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
4.1 Indices
5 Conventions
5.1 Prescriptive language for requirements specification
6 Relation to other ITU-T H.248.x-series Recommendations
6.1 [ITU-T H.248.30]: RTCP extended performance metrics packages
6.2 [ITU-T H.248.48]: RTCP XR block reporting package
6.3 Expired proposal ITU-T H.248.xnq: Gateway control protocol:
Extended network quality metrics packages for next generation networks
(NGNs).
7 Classification of performance metrics
8 Roles provided by MG
8.1 ITU-T H.248 MG as general measurement point (MP)
8.2 ITU-T H.248 MG as location-dependent measurement point (MP)
8.3 ITU-T H.248 MG as collection point (CP)
8.4 ITU-T H.248 MG as reporting point at IP bearer interface (RPRTCP)
8.5 ITU-T H.248 MG as reporting point at an ITU-T H.248 interface
(RPH.248)
8.6 ITU-T H.248 MG as filtering point (FP) (for RTCP traffic)
8.7 ITU-T H.248 MG as loopback point (LP) (for RTP/RTCP traffic)
8.8 Support of specific RTP topologies
9 ITU-T H.248 profile specification guidelines
9.1 Profile identification
9.2 Summary
9.3 Gateway control protocol version
9.4 Connection model
9.5 Context attributes
9.6 Terminations
9.7 Descriptors
9.8 Command API
9.9 Generic command syntax and encoding
9.10 Transactions
9.11 Messages
9.12 Transport
9.13 Security
9.14 Packages
9.15 Mandatory support of SDP and ITU-T H.248.1 Annex C information
elements
9.16 Optional support of SDP and ITU-T H.248.1 Annex C information
elements
9.17 Procedures
Appendix I – Example use cases for ITU-T H.248-based performance monitoring in
RTP networks
I.1 Overview
I.2 Use case 1: ITU-T H.248 MG with connection model (RTP non-RTP)
e.g., trunking gateway
I.3 Use case 2: IP-IP H.248 MG and remote SIP UE – Single control
plane RP by MG
I.4 Use case 3: IP-IP ITU-T H.248 MG and remote SIP UE – Single
control plane RP by UE
I.5 Use case 4: IP-IP ITU-T H.248 MG and remote SIP UE – Single
location of MPs ("LP by MG")
I.6 Use case 5: Distributed control plane reporting with near-end
measurements only (at the example of a trunking gateway)
I.7 Use case 6: IP-IP ITU-T H.248 MG as peering node
I.8 Use case 7: Multiple IP network domains – Segment-based
measurements
I.9 Use case 8: MP relocation by loopbacking
Appendix II – Design of the expired extended network quality base (XNQ)
package
II.1 Introduction
II.2 Extended network quality base package
Appendix III – Example performance metric types
III.1 Background
III.2 Transport level metrics
III.3 Application level metrics
Appendix IV – Relationship between IETF RTCP XR documents and ITU-T H.248.x
items and Recommendations
IV.1 Background
IV.2 Capabilities versus ITU-T H.248.x packages support
Appendix V – Use case specific capability sets – Two examples
V.1 Overview
Bibliography