Re: [v6ops] I-D Action: draft-ietf-v6ops-reducing-ra-energy-consumption-02.txt

Hi,

On 2 October 2015 at 04:39, Fred Baker (fred) <fred@cisco.com> wrote:
> Folks - I'd appreciate it if you would look at the update and comment
> quickly. The big new text is in section 4 and the security considerations.
> https://tools.ietf.org/rfcdiff?url2=draft-ietf-v6ops-reducing-ra-energy-consumption-02.txt
>

I'm generally ok with the next text.

I did find that the new Router Advertisement frequency section intro
read a bit as though it was a general and broad discussion of the
reasons to adjust RA timers, rather than one specific to RA interval
impacts on device power consumption.

For example, I've adjusted RA timers to reduce control plane resource
consumption on a broadband BNG/BRAS (e.g., 30K PPPoE sessions with the
default RA timers results in 50 unique RAs per second IIRC). I'd think
this reason would be out of scope for this draft.

So perhaps something like the following would make it clearer that
this section is only discussing battery power considerations when
changing RA intervals

"4. Router Advertisement frequency

There are a variety of reasons to adjust the frequency of periodic
RAs. This section discusses the power impacts for battery powered
devices when choosing an appropriate frequency for periodic RAs."

Regards,
Mark.

> My issue is that I moved too quickly. I looked at the list traffic and noted
> that it had come to a hiatus, and assumed that Lorenzo/Andrew had dealt with
> the open issues. This draft is intended to be the update that does that.
> However - I filed it with the IESG. If I need to snatch it back, say so now,
> please.
>
> On Oct 1, 2015, at 8:13 AM, Lorenzo Colitti <lorenzo@google.com> wrote:
>
> On Fri, Oct 2, 2015 at 12:09 AM, <internet-drafts@ietf.org> wrote:
>>
>>         Title           : Reducing energy consumption of Router
>> Advertisements
>>         Authors         : Andrew Yourtchenko
>>                           Lorenzo Colitti
>>         Filename        :
>> draft-ietf-v6ops-reducing-ra-energy-consumption-02.txt
>>         Pages           : 6
>>         Date            : 2015-10-01
>
>
> The changes from -02 are as follows:
>
> Added a section on RA intervals and lifetimes.
> Added text on RA guard in the security considerations section.
>
> Both are in response to previous WG comments.
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