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From: "Jonas Mårtensson" <martensson.jonas@gmail.com>
To: Mikael Abrahamsson <swmike@swm.pp.se>
Cc: Jan Ceuleers <jan.ceuleers@gmail.com>,
	bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] 22 seconds til bloat on gfiber?
Date: Thu, 27 Oct 2016 16:32:55 +0200	[thread overview]
Message-ID: <CAM9iV=+TkjrM5X6GnYKVRVNOv0F3OL+WbqxD6QbVG6gECC-Mqg@mail.gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1610261733530.12036@uplift.swm.pp.se>

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On Wed, Oct 26, 2016 at 5:36 PM, Mikael Abrahamsson <swmike@swm.pp.se>
wrote:

> On Wed, 26 Oct 2016, Jan Ceuleers wrote:
>
> What I mean is that the OLT optics become very expensive if you need to
>> support as many lambdas as you have customers. You'd furthermore need an
>> OLT port for much fewer customers (e.g. 1 port per 64 or 128 customers)
>> than the thousands you can support on a (shared) GPON port on a single
>> lambda.
>>
>
> That only works if your customers don't use their Internet access very
> much. If they do, you're in trouble and have to rebuild.
>

Yes, and the question then becomes: How much is "very much"? This can of
course be analyzed mathematically, which e.g. Google have done here:

http://research.google.com/pubs/pub44935.html


>
> In my market, we're now in the access speeds where 100/10 is on the lower
> end of access, and it's not uncommon for people to have 250, 500 or 1000
> downstream. If they then actually start using their bw then you'd have to
> rebuild to either go higher speed for some CPE (complicated and expensive),
> or rebuild to have smaller splitter domains.
>

The standard answer from PON proponents (I'm not one) is to upgrade
equipment, from GPON to XG-PON or NG-PON2. But upgrading hardware as
bandwidth demand increases is necessary whatever the technology - what's
important is the scalability of the solution.

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  reply	other threads:[~2016-10-27 14:32 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-22 21:56 Dave Taht
2016-10-22 23:52 ` Jonathan Morton
2016-10-23  1:33   ` jb
2016-10-23  1:45     ` Dave Taht
2016-10-23  1:47       ` Dave Taht
2016-10-23  2:27         ` jb
     [not found]           ` <CAJq5cE3DsV9v6ATVeq+vF_kVFjKy+8Qjwe-P01ZZbyKZB9HC6w@mail.gmail.com>
2016-10-23  8:29             ` Jonathan Morton
2016-10-23  9:23               ` jb
2016-10-23 16:14                 ` Klatsky, Carl
2016-10-24  0:46                   ` jb
2016-10-24 13:13                     ` Klatsky, Carl
2016-10-24 16:11                       ` Noah Causin
2016-10-24 20:27                         ` Klatsky, Carl
2016-10-23  2:30         ` Benjamin Cronce
2016-10-25  7:10   ` Jonas Mårtensson
2016-10-23  5:50 ` Mikael Abrahamsson
2016-10-24 16:57   ` Jonas Mårtensson
2016-10-24 22:10     ` Benjamin Cronce
2016-10-25  0:09       ` jb
2016-10-25 12:01         ` Benjamin Cronce
2016-10-25 13:11         ` Klatsky, Carl
2016-10-25 21:20           ` jb
2016-10-26  0:02             ` Klatsky, Carl
2016-10-25 15:59       ` Jan Ceuleers
2016-10-26  1:05         ` Benjamin Cronce
2016-10-26 14:49           ` Jan Ceuleers
2016-10-26 15:36             ` Mikael Abrahamsson
2016-10-27 14:32               ` Jonas Mårtensson [this message]
2016-10-27 16:56                 ` Dave Taht
2016-10-27 17:56                   ` [Bloat] Sidebar on s-curves David Collier-Brown
2016-10-27 19:30                   ` [Bloat] 22 seconds til bloat on gfiber? David Lang
2016-10-27 19:41                     ` Dave Taht
2016-10-27 19:48                       ` Aaron Wood
2016-10-28 15:51                         ` Jan Ceuleers
2016-10-28 15:55                           ` Klatsky, Carl
2016-10-27 19:45                     ` Aaron Wood
2016-10-27 20:17                   ` Mikael Abrahamsson
2016-12-07  5:40                     ` Jonathan Morton
2016-12-07  7:05                       ` Mikael Abrahamsson
     [not found] <mailman.313.1477591111.3555.bloat@lists.bufferbloat.net>
2016-10-27 19:27 ` Jonathan Foulkes

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