RE: I-D ACTION:draft-ietf-tewg-measure-06.txt

["Thomas D. Nadeau" <tnadeau@cisco.com>]

>TEWG,
>  The above I-D currently proposes a set of TE measurement 
>requirements.
>The are extracted below.  I would like to ask WG opinion:
>. should any or all of these requirements be dropped as they are not
>  "additional measurements needed for TE" as described in the TEWG
>  charter?
>. are there any "additional measurements needed for TE" that 
>are missing
>  from the list below and hence should be included?

	These requirements seem to be reasonable and 
necessary for the development of TE-based tools
and the refinement of existing ones.

	--Tom



>Thanks, Wai Sum
>
>*********
>Summary of requirements extracted from the above I-D:
>
>   For interoperable compatibility and consistency, 
>   requirements for traffic measurement recommended for 
>standardization 
>   include: 
>    
>   (1) Requirements for specific TE measurements 
>    
>   . Node-pair-based traffic data to derive per-service-class traffic 
>     matrix statistics, including statistics of carried load and 
>     offered load (Sections 3.3 and Appendix A) 
>   . Statistics of achieved performance and throughput (Section 3.4) 
>   . A standardized method to detect and record label binding changes 
>     for LDP-signaled label-switched paths, at the ingress-egress pair 
>     level (Section 3.5) 
>    
>   (2) Requirements for traffic data collection methods 
> 
>   . Standardization of measurement definitions and sampling methods, 
>     to achieve uniformity across vendors and operators, and to 
>     preserve sufficient traffic detail at manageable sample volumes 
>     (Section 6 and Appendix C) 
>   . Higher-order statistics to facilitate service assurance (Section 
>     3.1) 
>   . Offline bulk file transfer and standardized filtering/aggregation 
>     mechanisms to manage large volumes of measured traffic data 
>     (Section 5 and Appendix D) 
>   . Linkage between policy mechanisms and TE measurement, possibly 
>     triggered by a measurement-driven event notification (Section 5) 
>   . Standardization of information models for TE measurement (Section 
>     5) 
>    
>