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ITU-T Y.1540 (2011) Amd. 1 (01/2016)

New Appendix IX - Explanation of TCP-based measurement inadequacy to meet normative requirements

Readers of this Recommendation may find it useful to understand the implications of the Normative Requirements in section 6.12/Y.1540 when considering measurement methodologies, especially those based on available implementations of the TCP protocol. While TCP-based measurements are considered useful for informative surveys of user experience, they do not constitute the basis for standard metrics, methods of measurement, or numerical objectives. Comparison of TCP protocol with the requirements of section 6.12/Y.1540 in this Appendix clarifies its status as a measurement method.

Citation:	https://handle.itu.int/11.1002/1000/12761
Series title:	Y series: Global information infrastructure, Internet protocol aspects, next-generation networks, Internet of Things and smart cities Y.1000-Y.1999: Internet protocol aspects Y.1500-Y.1599: Quality of service and network performance
Approval date:	2016-01-21
Provisional name:	I.3SIP
Approval process:	Agreed
Status:	Superseded
Maintenance responsibility:	ITU-T Study Group 12
Further details:	Patent statement(s) Development history

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
6.2	Y.1540 (2019) Amd. 2 (03/2023)	In force	here	here	here
6.1	Y.1540 (2019) Amd. 1 (02/2020)	In force	here	here	here
6	Y.1540 (12/2019)	In force	here	here	here
5	Y.1540 (07/2016)	Superseded	here	here	here
4.1	Y.1540 (2011) Amd. 1 (01/2016)	Superseded	here	-	here
4	Y.1540 (03/2011)	Superseded	here	here	here
3.1	Y.1540 (2007) Amd. 1 (03/2009)	Superseded	here	here	here
3	Y.1540 (11/2007)	Superseded	here	here	here
2.1	Y.1540 (2002) Amd. 1 (08/2003)	Superseded	-	here	here
2	Y.1540 (12/2002)	Superseded	here	here	here
1	I.380 (02/1999)	Superseded	here	here	here
1	Y.1540 (02/1999)	Superseded	here	here	here


ITU-T Supplement	Title	Status	Summary	Table of contents	Download
Y Suppl. 56 (12/2019)	ITU-T Y-series – Supplement on use cases of smart cities and communities	In force	here	here	here
Y Suppl. 58 (05/2021)	Internet of things and smart cities and communities standards roadmap	In force	here	here	here
Y Suppl. 60 (06/2022)	Interpreting ITU-T Y.1540 maximum IP-layer capacity measurements	In force	here	here	here
Y Suppl. 68 (05/2021)	Framework for Internet of things ecosystem master plan	In force	here	here	here
Y Suppl. 69 (05/2021)	Web-based data model for Internet of things and smart city systems and services	In force	here	here	here
Y Suppl. 82 (07/2024)	Standardization gaps and roadmap for artificial intelligence and Internet of things in digital agriculture	In force	here	here	here
Y Suppl. 83 (07/2024)	Optimizing digital agriculture with best practices for integrating artificial intelligence and Internet of things	In force	here	here	here

Title	Approved on	Download
Multiple radio access technologies	2012	here
Quality of service and network performance	2004	here

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ITU-T Y.1540 (2011) Amd. 1 (01/2016)