[99502] in North American Network Operators' Group
RE: New TransPacific Cable Projects:
daemon@ATHENA.MIT.EDU (Rod Beck)
Mon Sep 24 15:11:09 2007
Date: Mon, 24 Sep 2007 19:56:35 +0100
From: "Rod Beck" <Rod.Beck@hiberniaatlantic.com>
To: <frnkblk@iname.com>, <michael.dillon@bt.com>, <nanog@merit.edu>
Errors-To: owner-nanog@merit.edu
This is a multi-part message in MIME format.
------_=_NextPart_001_01C7FEDD.3F386DB3
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Here is a TeleGeography news article worth a quick read:
http://www.telegeography.com/cu/article.php?article_id=3D19783&email=3Dht=
ml
It appears that that article assumes that capacity will not be increased =
by
WDM products...have those that been applied on those links already =
reached
the cables' maximum capabilities based on current technology?
Frank=20
I think you are going to find that the numbe of waves that can put on an =
undersea fiber is a function of the distance between the landing =
stations. Obviously most TransPacific cables traverse greater distances =
and hence probably cannot carry as many waves as TransAtlantic cables.=20
There is also a need for cables that are diverse from the existing =
cables. So lighting more capacity will not solve the physical diversity =
problems that were highlighted by the December earthquakes.=20
Most modern undersea cables have four fiber pairs per cable. And each of =
those fiber pairs can handle from 24 to 80 10 gig waves.=20
Hibernia can do 80 10 gig waves, but only becuase we replaced the =
undersea DWDM kit deployed at our landing stations.=20
Regards,=20
- Roderick.=20
This e-mail and any attachments thereto is intended only for use by the =
addressee(s) named herein and may be proprietary and/or legally =
privileged. If you are not the intended recipient of this e-mail, you =
are hereby notified that any dissemination, distribution or copying of =
this email, and any attachments thereto, without the prior written =
permission of the sender is strictly prohibited. If you receive this =
e-mail in error, please immediately telephone or e-mail the sender and =
permanently delete the original copy and any copy of this e-mail, and =
any printout thereof. All documents, contracts or agreements referred or =
attached to this e-mail are SUBJECT TO CONTRACT. The contents of an =
attachment to this e-mail may contain software viruses that could damage =
your own computer system. While Hibernia Atlantic has taken every =
reasonable precaution to minimize this risk, we cannot accept liability =
for any damage that you sustain as a result of software viruses. You =
should carry out your own virus checks before opening any attachment
------_=_NextPart_001_01C7FEDD.3F386DB3
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Diso-8859-1">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
6.5.7638.1">
<TITLE>RE: New TransPacific Cable Projects:</TITLE>
</HEAD>
<BODY>
<!-- Converted from text/plain format -->
<P><FONT SIZE=3D2>Here is a TeleGeography news article worth a quick =
read:<BR>
<A =
HREF=3D"http://www.telegeography.com/cu/article.php?article_id=3D19783&em=
ail=3Dhtml">http://www.telegeography.com/cu/article.php?article_id=3D1978=
3&email=3Dhtml</A><BR>
<BR>
It appears that that article assumes that capacity will not be increased =
by<BR>
WDM products...have those that been applied on those links already =
reached<BR>
the cables' maximum capabilities based on current technology?<BR>
<BR>
Frank<BR>
<BR>
I think you are going to find that the numbe of waves that can put on an =
undersea fiber is a function of the distance between the landing =
stations. Obviously most TransPacific cables traverse greater distances =
and hence probably cannot carry as many waves as TransAtlantic =
cables.<BR>
<BR>
There is also a need for cables that are diverse from the existing =
cables. So lighting more capacity will not solve the physical diversity =
problems that were highlighted by the December earthquakes.<BR>
<BR>
Most modern undersea cables have four fiber pairs per cable. And each of =
those fiber pairs can handle from 24 to 80 10 gig waves.<BR>
<BR>
Hibernia can do 80 10 gig waves, but only becuase we replaced the =
undersea DWDM kit deployed at our landing stations.<BR>
<BR>
Regards,<BR>
<BR>
- Roderick. </FONT>
</P>
</BODY>
<!--[object_id=3D#SID=3D01050000000000051500000075ca8dc12eba800b1db34ca40=
1020000#]--><FONT face=3DTahoma size=3D2><FONT color=3D#0000ff>
<P><FONT face=3DArial size=3D2>This e-mail and any attachments thereto =
is intended only for use by the addressee(s) named herein and may be =
proprietary and/or legally privileged. If you are not the intended =
recipient of this e-mail, you are hereby notified that any =
dissemination, distribution or copying of this email, and any =
attachments thereto, without the prior written permission of the sender =
is strictly prohibited. If you receive this e-mail in error, please =
immediately telephone or e-mail the sender and permanently delete the =
original copy and any copy of this e-mail, and any printout thereof. All =
documents, contracts or agreements referred or attached to this e-mail =
are SUBJECT TO CONTRACT. The contents of an attachment to this e-mail =
may contain software viruses that could damage your own computer system. =
While Hibernia Atlantic has taken every reasonable precaution to =
minimize this risk, we cannot accept liability for any damage that you =
sustain as a result of software viruses. You should carry out your own =
virus checks before opening any =
attachment</FONT></P></FONT></FONT></HTML>
------_=_NextPart_001_01C7FEDD.3F386DB3--
