Re: [manet] AD Review of draft-ietf-manet-dlep-multi-hop-extension-05

Lou Berger <lberger@labn.net> Fri, 15 March 2019 16:22 UTC

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To: Alvaro Retana <aretana.ietf@gmail.com>, draft-ietf-manet-dlep-multi-hop-extension@ietf.org
Cc: "Ratliff, Stanley" <sratliff@idirect.net>, manet@ietf.org, Mobile Ad-hoc Networks Working Group <manet-chairs@ietf.org>
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From: Lou Berger <lberger@labn.net>
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Date: Fri, 15 Mar 2019 12:09:34 -0400
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Subject: Re: [manet] AD Review of draft-ietf-manet-dlep-multi-hop-extension-05
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On 3/15/2019 11:47 AM, Alvaro Retana wrote:
> On March 8, 2019 at 9:54:24 AM, Lou Berger (lberger@labn.net 
> <mailto:lberger@labn.net>) wrote:
>
> Lou:
>
> Hi!
>
> Thanks for getting this done.
>
> I have a couple of nits below — and will also send a reply to your 
> exchange with Justin.   I’ll start the IETF LC in a couple of minutes.
>
> Alvaro.
>
>
> ...
>>>>>> ...
>>>>>> 72 1. Introduction
>>>>>> ...
>>>>>> 80 Some modem technologies support connectivity to destinations via
>>>>>> 81 multi-hop forwarding.  DLEP Destination messages can be used to
>>>>>> 82 report such connectivity, see [RFC8175], but do not provide any
>>>>>> 83 information related to the number or capacity of the hops. The
>>>>>> 84 extension defined in this document enables modems to inform 
>>>>>> routers
>>>>>> 85 when multi-hop forwarding is being used, and routers to 
>>>>>> request that
>>>>>> 86 modems change multi-hop forwarding behavior.  The extension 
>>>>>> defined
>>>>>> 87 in this document is referred to as "Multi-Hop Forwarding".
>>>>>>
>>>>>> [major] Please define "multi-hop forwarding" in the context of 
>>>>>> the modems.
>>
>> Done, please see the changes at the repo posted above and let me know 
>> if the changes are sufficient.
>
> Yes, I think that’s fine.  Just a nit: there’s some orphaned text 
> (“example using”) left in the new text.
>
>
woops - thanks.
> ...
>>
>>>>>>
>>>>>> 166   Reserved:
>>>>>>
>>>>>> 168      MUST be set to zero by the sender (a modem) and ignored 
>>>>>> by the
>>>>>> 169      receiver (a router).
>>>>>>
>>>>>> [major] I think that a registry for these bits is needed.  
>>>>>> Otherwise anyone can use them...
>>
>> My inclination would be to establish a registry on the second usage 
>> of the reserved field.  Right now I don't see additional uses and it 
>> seems like a lot of unneeded overhead at this point.  Of course, 
>> you're the AD so your view counts for more ;-)
>
> …but you still didn’t define the registry. :-(
>
> Seriously:  it’s ok.  I trust that the next user will do the right thing.
>
Thanks!

I've pushed your and some other nit changes to the repo, but don't think 
they need hold anything.

Thanks,

Lou