Re: [gaia] Heterogeneity in network capacity: growing?

Steve Song <stevesong@nsrc.org> Mon, 29 February 2016 15:39 UTC

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Date: Mon, 29 Feb 2016 11:39:40 -0400
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From: Steve Song <stevesong@nsrc.org>
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Subject: Re: [gaia] Heterogeneity in network capacity: growing?
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Looking at sub-Saharan Africa, I think the key enabler of heterogeneity is
the availability of open access national and metro fibre.  This is enabling
everything from data-only LTE service providers like Smile and Bitflux, to
FTTH, to metro WiFi, to TVWS.
https://manypossibilities.net/2016/01/africa-telecoms-infrastructure-in-2015/
reveals a positive trend in access diversity, although rural areas remain a
challenge.

Cheers... Steve

On 29 February 2016 at 11:00, Eric A. BREWER <brewer@berkeley.edu> wrote:

> Seems to me the two likely bottlenecks are last-mile mobile links
> (especially old devices), and international gateways.  Since international
> bandwidth can be quite expensive (even with undersea fiber in some areas,
> but especially without it), there is often throttling and/or congestion at
> those points, even when your device has high bandwidth.
>
>
> On Mon, Feb 29, 2016 at 1:11 AM, Manner Jukka <jukka.manner@aalto.fi>
> wrote:
>
>> Hi,
>>
>> I don’t have a published analysis to cite, have done similar comparisons
>> many times in various presentations. I could run that distribution from the
>> Netradar database for 2014 and 2015, just need to give me the X buckets
>> where to allocate the samples.
>>
>> Market analysis is a bit trickier, since measurements need to be mapped
>> to a region somehow. IP address is one option if it can be trusted enough.
>>
>> Jukka
>>
>> > On 29 Feb 2016, at 10:16, Michael Welzl <michawe@ifi.uio.no> wrote:
>> >
>> > First,
>> >
>> > Apologies for asking first formulating a question in two ways with
>> contradictory outcomes (yes/no) and then saying "I guess the answer is no"
>> - that was confusing!  :)   I was tired when I wrote it...
>> > so I meant the second question, i.e. my guess was also that
>> heterogeneity *is* growing.
>> >
>> > How would you calculate if there was data: I guess what I'm interested
>> in is bandwidth statistics: how often do we see a bottleneck of X bit/s?
>> The Internet-wide distribution of X is what I'm looking for...
>> >
>> > Depending on area/market: I'd also be happy to have X for India, X for
>> Europe, X for ... whatever. It's a start!
>> > Ideally citable - some publicly available study I could refer to.
>> >
>> > Cheers,
>> > Michael
>> >
>> >
>> >
>> >> On 29 Feb 2016, at 08:33, Manner Jukka <jukka.manner@aalto.fi> wrote:
>> >>
>> >> Hi,
>> >>
>> >> I would say yes, they are globally, but it also depends on what
>> area/market you are talking about. How would you calculate it if there was
>> data? I have data, but not sure how to calculate this.
>> >>
>> >> cheers,
>> >> Jukka
>> >>
>> >>> On 29 Feb 2016, at 01:04, Michael Welzl <michawe@ifi.uio.no> wrote:
>> >>>
>> >>> Hi,
>> >>>
>> >>> I guess this is probably the right group to ask: is the heterogeneity
>> of link bandwidths growing?
>> >>> Another way of asking this is: across the whole Internet, do old
>> links roughly get removed as quickly as capacities grow?
>> >>>
>> >>> I guess the answer is no - but are there any good citable references
>> for this? Data?
>> >>>
>> >>> Cheers,
>> >>> Michael
>> >>>
>> >>> _______________________________________________
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>> >>
>> >
>>
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