That's bandwidth.;)

Hi!

Stumbled over this rrd pic, looks quite remarkable:

http://www.heise.de/bilder/56284/0/1

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Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
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#bofh excuse 447: According to Microsoft, it's by design

"Michael Heiming" <michael+(E-Mail Removed)> wrote in message
newsrmsd2-(E-Mail Removed)

> Stumbled over this rrd pic, looks quite remarkable:
> http://www.heise.de/bilder/56284/0/1

I've heard of fiber-optic interfaces which use multi-coloured light, each
frequency/wavelength of which is fully capable. Maybe this is one of those.

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use hotmail for email replies

In comp.os.linux.networking ynotssor <(E-Mail Removed)>:
> "Michael Heiming" <michael+(E-Mail Removed)> wrote in message
> newsrmsd2-(E-Mail Removed)

>> Stumbled over this rrd pic, looks quite remarkable:
>> http://www.heise.de/bilder/56284/0/1

> I've heard of fiber-optic interfaces which use multi-coloured light, each
> frequency/wavelength of which is fully capable. Maybe this is one of those.

Unsure, the picture is from the primary German internet gateway,
built out of three large cisco catalyst. Each capable of 720
GBit/s transfer.

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Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
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#bofh excuse 223: The lines are all busy (busied out, that is --
why let them in to begin with?).

ynotssor wrote:

> "Michael Heiming" <michael+(E-Mail Removed)> wrote in message
> newsrmsd2-(E-Mail Removed)
>
>> Stumbled over this rrd pic, looks quite remarkable:
>> http://www.heise.de/bilder/56284/0/1
>
> I've heard of fiber-optic interfaces which use multi-coloured light, each
> frequency/wavelength of which is fully capable. Maybe this is one of
> those.
>

The bit rates indicated in that graph, are well within the capabilites of a
single colour system.

James Knott wrote:
> ynotssor wrote:
>
>
>>"Michael Heiming" <michael+(E-Mail Removed)> wrote in message
>>newsrmsd2-(E-Mail Removed)
>>
>>
>>>Stumbled over this rrd pic, looks quite remarkable:
>>>http://www.heise.de/bilder/56284/0/1
>>
>>I've heard of fiber-optic interfaces which use multi-coloured light, each
>>frequency/wavelength of which is fully capable. Maybe this is one of
>>those.
>>
>
>
> The bit rates indicated in that graph, are well within the capabilites of a
> single colour system.
>

Over ten Gigabits i don't think
It's must be DWDM

http://www.webopedia.com/TERM/D/DWDM.html


--
Weill Philippe - Administrateur Systeme et Reseaux

Philippe WEILL wrote:

> Over ten Gigabits i don't think
> It's must be DWDM
>
> http://www.webopedia.com/TERM/D/DWDM.html

OC-192 SONET runs at 9.6 Gb/s and it's been around for a few years. The
limit is not the fibre, but in getting the bits into and out of it. I
recall reading a few years ago, about experiments at 40 Gb with a single
colour.

In comp.os.linux.networking James Knott <(E-Mail Removed)>:
> Philippe WEILL wrote:

>> Over ten Gigabits i don't think
>> It's must be DWDM
>>
>> http://www.webopedia.com/TERM/D/DWDM.html

> OC-192 SONET runs at 9.6 Gb/s and it's been around for a few years. The
> limit is not the fibre, but in getting the bits into and out of it. I
> recall reading a few years ago, about experiments at 40 Gb with a single
> colour.

Those are a couple of lines aggregated, it's the main German
internet connection. Guess this post will go through the system
out of 3 cisco catalyst, capable of handling 2.1 TBit/sec.

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Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
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#bofh excuse 28: CPU radiator broken

Michael Heiming <michael+(E-Mail Removed)> wrote:
> Hi!

> Stumbled over this rrd pic, looks quite remarkable:

> http://www.heise.de/bilder/56284/0/1

What is this dip around 9/11?

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Uwe Bonnes (E-Mail Removed)

Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

Michael Heiming wrote:

>> OC-192 SONET runs at 9.6 Gb/s and it's been around for a few years.**The
>> limit is not the fibre, but in getting the bits into and out of it.**I
>> recall reading a few years ago, about experiments at 40 Gb with a single
>> colour.
>
> Those are a couple of lines aggregated, it's the main German
> internet connection. Guess this post will go through the system
> out of 3 cisco catalyst, capable of handling 2.1 TBit/sec.

Several years ago, just after I started working in the telecom industry, the
company I worked for retired it's last revenue Morse wire. When I left
that industry, ten years ago, I was working with OC-48 SONET and OC-192 was
"just around the corner". I wonder how much bandwidth can be squeezed out
of a single colour system? What will be the limiting factor? Adding
colours is easy enough and around the time I left, my employer was starting
to run full duplex over a single fibre, using directional couplers.