Re: Subject: Survey of lengths of installed optical fiber cable
Chris:
The scope and goals of this survey were discussed several times during the
high speed study group (HSSG) during 1999 and on the HSSG reflector. The
intent of the survey was to inform decisions that might have to be made
concerning the HSSG's and now task force's objective of supporting the
installed MM fiber and supporting select media and topologies from ISO 11801.
To respond specifically to your questions, it is too late to change the
scope and objectives. The survey questionnaire is done. Most of the
responses are in and tabulated.
The ad hoc committee did discuss the merit and feasibility of gathering
data on inter POP, inter CO, and WAN access links but the consensus was 1)
we doubted such information could be obtained from a survey of network
managers and 2) we were fairly certain that the goals of at least 2, 10,
and 40 km on SM fiber would cover most of the installed base of such links.
In so far as the applications you describe use installed building fiber or
topologies from ISO 11801, such applications would be covered under the
survey. But as Roy implies many of these applications are not
circumscribed by installed building cabling. Customers are not constrained
by the installed base and the Ethernet industry and the IEEE has much for
latitude in figuring out solutions.
All this being said, I also expect that the applications you describe are
likely to be a significant market for many of the 10 GbE implementations in
the early phase.
Yours
Bruce Tolley
erstwhile, de facto chair of the now defunct installed cabling ad hoc
Enterprise Line of Business
Cisco Systems
At 08:42 AM 5/15/00 -0500, Roy Bynum wrote:
>Chris,
>
>I made a presentation at the September '99 interim meeting titled "10GbE
>Implementation Architectures". On page 4 I gave a list of
>different implementation environments for 10GbE. You might take a look at
>it. One implementation that I did not include, which I
>should have, was "clustered systems". Clustered systems, servers or
>routers (data switches) from the same vendor that are
>interconnected with common process sharing. These systems will use 10GbE
>at distances less than 100m, most likely with proprietary
>interfaces.
>
> From my experience and talking to large customers and our own network
> out-sourcing people, I have come to the personal conclusion
>that there is a potential large market for a LAN only PHY at 100 meters or
>less. Most, if not all, of these will be greenfield
>upgrade installations, not necessarily replacement upgrades. The need for
>short reach 10GbE between systems from the same vendors
>is very high in the Internet and large Enterprise networking
>environments. While a common standard for this would be very
>beneficial, I have a feeling that there are several vendors with
>proprietary solutions already in process. The customer base will
>get what they need, even if it is not standardized by IEEE. OIF is also
>looking at this issue.
>
>Thank you,
>Roy Bynum
>
>----- Original Message -----
>From: "Chris Simoneaux" <csimoneaux@picolight.com>
>To: "Chris Diminico" <cd@mohawk-cdt.com>; <stds-802-3@majordomo.ieee.org>;
><stds-802-3-hssg@ieee.org>; <cd@mohawk-cdt.com>
>Cc: "Jack Jewell" <jljewell@picolight.com>; "Stan Swirhun"
><sswirhun@picolight.com>
>Sent: Thursday, May 11, 2000 7:50 PM
>Subject: RE: Subject: Survey of lengths of installed optical fiber cable
>
>
> >
> > I would suggest we focus on the true application space that these links
> will
> > initially operate in, i.e. the intra and inter central office/POP,
> local and
> > remote access links.
> >
> > Can we change the survey description?
> >
> > Chris Simoneaux
> >
> > -----Original Message-----
> > From: Chris Diminico [mailto:cd@mohawk-cdt.com]
> > Sent: Friday, February 04, 2000 8:37 AM
> > To: stds-802-3@majordomo.ieee.org; stds-802-3-hssg@ieee.org
> > Subject: Subject: Survey of lengths of installed optical fiber cable
> >
> >
> >
> > Please find below a request issued September 29, 1999 from Geoff Thompson
> > (Chair IEEE 802.3) requesting that the IEEE 802.3 members respond to a
> > survey
> > designed to characterize the lengths and types of installed optical fiber
> > cable.
> >
> > Based on the response to that request, and the importance of the
> information
> > to the development of the higher speed 802.3 standard (10 Gb/s), the survey
> > response is requested once more.
> >
> >
> > Your participation is greatly appreciated. The goal is to present the
> survey
> > results at the IEEE
> > plenary meeting scheduled for the week of 6 March Albuquerque.
> >
> > To meet that deadline, the survey response is required by February 25 th.
> > Forward completed surveys to Chris Di Minico, Mohawk/CDT (
> cd@mohawk-cdt.com
> > <mailto:cd@mohawk-cdt.com> ).
> > All lengths are to be reported in meters.
> >
> > The survey documentation is located on the 802.3 web site at the following
> > URLs.
> >
> > Geoff's cover letter:
> > http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/
> >
> <http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/> >
> > Cover_letter.doc
> >
> > Survey document: All lengths are to be reported in meters.
> > http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/
> >
> <http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/> >
> > HSSG_survey.doc
> >
> > Survey spreadsheet:
> > http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/
> >
> <http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/> >
> > Fiber_survey_template.xls
> >
> >
> > LBL survey example:
> > http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/
> >
> <http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/> >
> > HSSG-Survey_LBNL.xls
> >
> >
> >
> >
> ----------------------------------------------------------------------------
> > ---------------------------------------------------
> >
> >
> >
> > The following email is sent on behalf of Goeff Thompson, Chair of 802.3 by
> > the
> > HSSG Fiber Survey Ad Hoc:
> >
> >
> > September 27, 1999
> >
> > To: IEEE 802.3 Members
> > From: Geoff Thompson, Chair IEEE 802.3
> > Subject: Survey of lengths of installed optical fiber cable
> >
> > Characterization of the lengths and types of installed optical fiber cable
> > is an item of critical
> > importance to the development of the higher speed 802.3 standard (~10
> Gb/s).
> > The attached
> > survey is designed to capture the information necessary to determine the
> > installed cabling lengths
> > in order to specify appropriate physical layer specifications for the
> > higher speed standard.
> >
> > We are requesting that each 802.3 member ask a network manager in his/her
> > own company
> > (on a coordinated basis that results in one response per company) to
> fill in
> > the following
> > attached survey.
> >
> > For 802.3 members who are employees of network equipment vendors, we ask in
> > addition that you request that one or more of your customers take the time
> > to fill in the survey.
> >
> > Criteria for participation:
> >
> >
> > + OTDR length data on installed links (or equivalent detailed data e.g.,
> > where the
> > lengths had been recorded from the cable length marks).
> >
> > + A minimum of 500 network nodes
> >
> > Your participation is greatly appreciated. The goal is to present the
> survey
> > results at our
> > next plenary meeting which is scheduled for the week of 8 November in
> > Hawaii.
> >
> >
> >
> > To meet that deadline, the survey response is required by October 29th.
> > Forward completed surveys to Chris Di Minico, Mohawk/CDT (
> cd@mohawk-cdt.com
> > <mailto:cd@mohawk-cdt.com> ).
> >
> > The survey documentation is located on the 802.3 web site at the following
> > URLs.
> >
> > Geoff's cover letter:
> > http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/
> >
> <http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/> >
> > Cover_letter.doc
> >
> > Survey document:
> > http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/
> >
> <http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/> >
> > HSSG_survey.doc
> >
> > Survey spreadsheet:
> > http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/
> >
> <http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/> >
> > Fiber_survey_template.xls
> >
> >
> > LBL survey example:
> > http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/
> >
> <http://grouper.ieee.org/groups/802/3/10G_study/public/cabling_adhoc/public/> >
> > HSSG-Survey_LBNL.xls
> >
> > Best Regards,
> >
> > Geoff Thompson (geoff_thompso@baynetworks.com), Chair IEEE
> > 802.3
> >
> >