Re: [Roll] I-D Action: draft-ietf-roll-p2p-measurement-05.txt

Philip Levis <pal@cs.stanford.edu> Thu, 10 May 2012 00:31 UTC

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Subject: Re: [Roll] I-D Action: draft-ietf-roll-p2p-measurement-05.txt
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The new draft addresses all of my comments. The overview section is much clearer and unambiguous.

Phil

On May 9, 2012, at 4:27 PM, Mukul Goyal wrote:

> This version takes care of ticket #98 (created in response to LC comment by Phil Levis) and has the following changes:
> 
> 1) Updated the overview section. This section now has better explanation of the mechanism and explicitly clarifies the following:
> 1.1) The route being measured is from the origin to the target.
> 1.2) The origin decides what metrics are measured.
> 
> 2) Section 4 (Originating a Measurement Request) now clearly says:
> 
> "The Origin MUST also include the routing metric objects of
>   interest inside one or more Metric Container options inside the MO.
> "
> 
> 3) Section 5 (Processing a Measurement Request at an Intermediate Router) now clearly says:
> 
> "An Intermediate Router can
>   only update the existing metric objects and MUST NOT add any new
>   routing metric object to the Metric Container.  An Intermediate
>   Router MUST drop the MO if it cannot update a routing metric object
>   specified inside the Metric Container."
> 
> 4) Updated the IANA section to include the correct language as per RFC5226.
> 
> These modifications should remove the perceived ambiguity (regarding who decides which metrics would be measured) reported in Ticket #98. 
> 
> Thanks
> Mukul 
> ----- Original Message -----
> From: internet-drafts@ietf.org
> To: i-d-announce@ietf.org
> Cc: roll@ietf.org
> Sent: Wednesday, May 9, 2012 6:11:01 PM
> Subject: [Roll] I-D Action: draft-ietf-roll-p2p-measurement-05.txt
> 
> 
> A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Routing Over Low power and Lossy networks Working Group of the IETF.
> 
> 	Title           : A Mechanism to Measure the Quality of a Point-to-point Route in a Low Power and Lossy Network
> 	Author(s)       : Mukul Goyal
>                          Emmanuel Baccelli
>                          Anders Brandt
>                          Jerald Martocci
> 	Filename        : draft-ietf-roll-p2p-measurement-05.txt
> 	Pages           : 20
> 	Date            : 2012-05-09
> 
>   This document specifies a mechanism that enables an RPL router to
>   measure the quality of an existing route towards another RPL router
>   in a low power and lossy network, thereby allowing the router to
>   decide if it wants to initiate the discovery of a better route.
> 
> 
> A URL for this Internet-Draft is:
> http://www.ietf.org/internet-drafts/draft-ietf-roll-p2p-measurement-05.txt
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
> This Internet-Draft can be retrieved at:
> ftp://ftp.ietf.org/internet-drafts/draft-ietf-roll-p2p-measurement-05.txt
> 
> The IETF datatracker page for this Internet-Draft is:
> https://datatracker.ietf.org/doc/draft-ietf-roll-p2p-measurement/
> 
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> 


Phil