Re: [v6ops] draft-ietf-v6ops-reducing-ra-energy-consumption WGLC

I've read the draft, think it is important work, and support it.

However, I have a few comments;

1. Section "3. Consequences" seems to express disapproval of ignoring RA's or IPv6 traffic altogether while devices are asleep.  However, there are no recommendations regarding the proper behavior of host implementations in this respect within Section 4.  Please clearly recommend RAs not be ignored, if that is the intent.  Otherwise, maybe suggest an upper limit on the period RA's or IPv6 traffic MAY be ignored by host implementations.

2. Section "4. Recommendations" currently intermixes recommendations for router implementations and network operators.  I would like to see three sets of recommendations that clearly delineate the recommendations for router implementations, host implementations, and network operators separately.  This may cause some slight repetition, however I think the clarity provided would be very beneficial. 

3. I think it should be noted somewhere, maybe in the introduction;

While not specifically considered in this document, too frequent multicast Router Advertisement messages can negatively impact the performance of hosts and networks in many other ways than just energy consumption.

4. Section "7. Security Considerations" should note frequent sending of Rouge Router Advertisements could also severely impact power consumption on battery-powered hosts, see RFC6104, Section 3 and RA-Guard [RFC6105] for mitigation of Rouge Router Advertisements.

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David Farmer                          Email: farmer@umn.edu
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> On Aug 23, 2015, at 13:00, fred@cisco.com wrote:
> 
> This is to initiate a two week working group last call of
> http://tools.ietf.org/html/draft-ietf-v6ops-reducing-ra-energy-consumption.  
> Please read it now. If you find nits (spelling errors, minor suggested
> wording changes, etc), comment to the authors; if you find greater
> issues, such as disagreeing with a statement or finding additional
> issues that need to be addressed, please post your comments to the
> list.
> 
> We are looking specifically for comments on the importance of the
> document as well as its content. If you have read the document and
> believe it to be of operational utility, that is also an important
> comment to make.
> 
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