Re: [Sat-int] Fwd: New Version Notification for draft-li-arch-sat-00.txt

Alexandre Petrescu <alexandre.petrescu@gmail.com> Thu, 07 December 2023 13:39 UTC

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Subject: Re: [Sat-int] Fwd: New Version Notification for draft-li-arch-sat-00.txt
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Tony,

Thank you for the draft.

> It has been noted that satellite networks can provide lower latencies 
> than terrestrial fiber networks [Handley 
> <https://doi.org/10.1145/3286062.3286075>].

Well, I doubt the argument.  I suspect the authors talk about in-core 
latencies; maybe they compare ISL latencies above a city to the in-core 
latency of network segments in that same city.  In that sense they might 
be right.

On another hand, if one looks at latency from a smartphone or home user 
in a City point of view, it appears that few might prefer satcom latency 
to fiber latency - satcom access is way too latent.

However, it is indeed possible for satcom access to aim for a same kind 
of latency (or even lower) that the best fiber access can afford.

The recently published Next G paper has also a goal "90. Need to 
decrease Round Trip Time (RTT) in non-terrestrial networks:" 
https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.1293.pdf

Alex


Le 05/12/2023 à 19:14, Tony Li a écrit :
>
> Hi all,
>
> Thank you all for the comments that I’ve received.
>
> It’s been determined that my draft is not appropriate for TVR, so I’ll 
> be taking this via the ISE route.
>
> In the meantime, I would welcome more comments.
>
> Tony
>
>
>> Begin forwarded message:
>>
>> *From: *internet-drafts@ietf.org
>> *Subject: **New Version Notification for draft-li-arch-sat-00.txt*
>> *Date: *December 5, 2023 at 10:11:40 AM PST
>> *To: *"Tony Li" <tony.li@tony.li>
>>
>> A new version of Internet-Draft draft-li-arch-sat-00.txt has been 
>> successfully
>> submitted by Tony Li and posted to the
>> IETF repository.
>>
>> Name:     draft-li-arch-sat
>> Revision: 00
>> Title:    A Routing Architecture for Satellite Networks
>> Date:     2023-12-05
>> Group:    Individual Submission
>> Pages:    14
>> URL:      https://www.ietf.org/archive/id/draft-li-arch-sat-00.txt
>> Status:   https://datatracker.ietf.org/doc/draft-li-arch-sat/
>> HTMLized: https://datatracker.ietf.org/doc/html/draft-li-arch-sat
>>
>>
>> Abstract:
>>
>>   Satellite networks present some interesting challenges for packet
>>   networking.  The entire topology is continually in motion, with links
>>   that are far less reliable than what is common in terrestrial
>>   networks.  Some changes to link connectivity can be anticipated due
>>   to orbital mechanics.
>>
>>   This document proposes a routing architecture for satellite networks
>>   based on existing routing protocols and mechanisms, enhanced with
>>   scheduled link connectivity change information.  This document
>>   proposes no protocol changes.
>>
>>
>>
>> The IETF Secretariat
>>
>>
>
>