Please find below my comments:
1. The orientation of the document seems to be very IPv6 centric. Yes,
there is a 'IPFIX and IPv6' section, but it's very limited in scope, and
then all examples in the text use IPv4 addresses for example. I suggest
that at least a note is included in the 'IPFIX and IPv6' section
mentioning that although examples use IPv4, all applicability statements
apply in IPv6 networks. If there are any exceptions, these need to be
mentioned, obviously.
2. The last but one paragraph in Section 2.4 (the one starting with
'Security incidents can become a threat ...' seems to belong more in the
Security Considerations section, rather than being a security
application applicability statement
3. Section 2.5: to 'The calculation of those QoS metrics requires
per-packet processing.' it would be good to add '... and clock
synchronization of multiple observation points'.
4. It is not clear why congestion awareness is considered to be an
inter-domain issue and is mentioned in 2.6.
5. Typo in 3.2 s/addressd/addressed
6. Syntax : 'The TPM-MIB breaks out the APM-MIB transactions into
sub-application level transaction' s/transaction/transactions/
7. 'Again sub-
application level transaction could be measured using IPFIX with
an appropriate flow definition and by combining the reporting of
both directions of the data transfer (for reporting bi-
directional flow information see also section 4.5).'
This sentence is broken in multiple ways. What is being measure? Maybe
application level transaction performance? Or maybe we are talking about
transactions? Then, what is the meaning of 'Again'? In the previous
paragraphs the editors seem to be of opinion that IPFIX does not map
well into APM MIB, here they suggest some kind of usage of IPFIX to map
with into TPM MIB sub-transactions.
8. In Section 3.3 I would prefer to see a stronger statement that IPM
metrics should be used to the possible extend, and wherever applicable -
e.g. for measurements of delay, delay variation, packet loss, etc. RMON
documents for example follow a similar strategy.
9. Question - was section 3.4 (and the whole document actually) reviewed
with the AAA Doctors team?
10. Why is section 4.6 located under 'Limitations'?
Dan
-----Original Message-----
From: The IESG [mailto:iesg-secretary(_at_)ietf(_dot_)org]
Sent: Friday, June 09, 2006 1:45 AM
To: IETF-Announce
Cc: ipfix(_at_)net(_dot_)doit(_dot_)wisc(_dot_)edu
Subject: Last Call: 'IPFIX Applicability' to Informational
RFC (draft-ietf-ipfix-as)
The IESG has received a request from the IP Flow Information
Export WG to consider the following document:
- 'IPFIX Applicability '
<draft-ietf-ipfix-as-08.txt> as an Informational RFC
The IESG plans to make a decision in the next few weeks, and
solicits final comments on this action. Please send any
comments to the iesg(_at_)ietf(_dot_)org or ietf(_at_)ietf(_dot_)org mailing
lists
by 2006-06-22.
The file can be obtained via
http://www.ietf.org/internet-drafts/draft-ietf-ipfix-as-08.txt
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