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comments on framework draft



Hi Nick,

please find below some comments on the framework draft.

- I would propose to group the requirements in requirements about schemes, configuration and reporting. Maybe it is also possible to show what requirenments are needed for which scenarios. Furthermore I think some requirements should be more precise to be able to answer whether they are met or not (e.g. what does "ease of configuration " and "maximum line rate" mean exactly)
- Regarding the terminology section we need to agree on common terms in both drafts and I would suggest to re-use IPFIX terminology as much as possible. Regarding this I have a few comments:
- According to the current definition a PSAMP device would be an IPFIX device just without exporting process ?
- The measurement process definition currently differs from IPFIX. I think we could simply use the IPFIX definition, where the exporting process is considered as a separate process.
- As I understand the purpose of the reporting process is just generating records. In IPFIX this is a part of the measrement process
- Cant the measurement packets be seen as specific flow records (as defined in IPFIX)
- The categorization of schemes differs in our drafts. We can discuss this in the WG session.
- Regarding the reporting I would suggest to write down the reporting requirements and then compare with the IPFIX requirements in order to see whether IPFIX can be used as exporting protocol for psamp.

Regards
Tanja










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Dipl.-Ing. Tanja Zseby
FhI FOKUS/Global Networking Email: zseby@fokus.fhg.de
Kaiserin-Augusta-Allee 31 Phone: +49-30-3463-7153
D-10589 Berlin, Germany Fax: +49-30-3463-8153
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