[Gen-art] Gen-ART Last Call review of draft-ietf-dime-drmp-04

Meral Shirazipour <meral.shirazipour@ericsson.com> Thu, 24 March 2016 07:32 UTC

From: Meral Shirazipour <meral.shirazipour@ericsson.com>
To: "draft-ietf-dime-drmp.all@tools.ietf.org" <draft-ietf-dime-drmp.all@tools.ietf.org>, "gen-art@ietf.org" <gen-art@ietf.org>
Thread-Topic: Gen-ART Last Call review of draft-ietf-dime-drmp-04
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Date: Thu, 24 Mar 2016 07:32:47 +0000
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Subject: [Gen-art] Gen-ART Last Call review of draft-ietf-dime-drmp-04
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I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair.  Please treat these comments just like any other last call comments.

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Document:  draft-ietf-dime-drmp-04
Reviewer: Meral Shirazipour
Review Date: 2016-03-24
IETF LC End Date:  2016-03-24
IESG Telechat date: NA


Summary:
This draft is ready to be published as Standards Track RFC but I have some comments.

Major issues:

Minor issues:
-[Page 7],
"The mechanism for how the agent determines which requests are
       throttled is implementation dependent and is outside the scope of  this document.
"

Shouldn't all nodes handshake the mechanism to use to avoid countering each other's throttling decision/effect?

-Security:
Security section is well written but not convincing that the method described in this draft is a viable solution specially for first responder and public safety scenarios.
Section 11.2 says DDOS is not an imminent thread but a few compromised nodes could send heavy load of high priority requests - I may be missing something here?


Nits/editorial comments:
-[Page 2], Please spell out DOIC at first use "Diameter Overload Indication Conveyance"

-[Page 3], second sentence would read better as:
old:
"For instance it might be considered important to reduce the
   probability of transactions involving first responders during a
   period of heavy signaling resulting from a natural disaster being
   throttled during overload scenarios.
"
new (suggested):
"For instance it might be considered important to reduce the
probability of transactions involving first responders being throttled
during overload scenarios caused for example by a period of heavy signaling
resulting from a natural disaster.
"
-[Page 3], "the DIOC reacting node", should it be DOIC?

-[Page 4], Please spell out AVP at first use (currently done in Section 9)

-[Page 6], "Platinum SLA the includes"--->"Platinum SLA that includes"

-comment on above sentence? (should we say in case net neutrality rules are not in place, ...." ?

-[Page 6], sentence below did not read well.
old:
"In this scenario it is requests with the same command code that have
different implied priorities.

"

new (suggested):
"In this scenario requests with the same command code have
different implied priorities.
"

-[Page 6], Please spell out ULR at first use

-[Page 7]

-[Page 7], [Page 8], and [Page 9] "non supportant"--->"non-supporting"

-[Page 12], "which requests are are"--->"which requests are"

-[Page 13], Please spell out TCP, SCTP, TLS, DTLS at first use

-[Page 14], "degrated"--->"degraded"

Best Regards,
Meral
---
Meral Shirazipour
Ericsson
Research
www.ericsson.com

[Gen-art] Gen-ART Last Call review of draft-ietf-… Meral Shirazipour
Re: [Gen-art] Gen-ART Last Call review of draft-i… Steve Donovan
Re: [Gen-art] Gen-ART Last Call review of draft-i… Meral Shirazipour
Re: [Gen-art] Gen-ART Last Call review of draft-i… Jari Arkko
Re: [Gen-art] Gen-ART Last Call review of draft-i… Steve Donovan