Re: what is dark fiber?
It is my understanding that dark fiber is un-used/non-saturated fiber. I havn't heard that its a special type of fiber, just a condition of the fiber. "bahadir korkmaz" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > hi. > what is dark fiber? > i found some sites that says dark fiber means unused fiber. > is it so? > i think dark fiber must be different then unused fiber. > i mean for example. 10gigabit ethernet runs on dark fiber. > dark must be something related to bandwidth or wavelength. > > if someone knows dark fiber definition i ll be happy. > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > Share information about yourself, create your own public profile at > http://profiles.msn.com. > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what is dark fiber?
Dark fiber means you push the light and is currently unused. Don't worry, I was in the dark when the term was introduced to me. :-) Jim Croyle Network Engineer -Original Message- From: bahadir korkmaz [mailto:[EMAIL PROTECTED]] Sent: Tuesday, September 05, 2000 12:04 PM To: [EMAIL PROTECTED] Subject: what is dark fiber? hi. what is dark fiber? i found some sites that says dark fiber means unused fiber. is it so? i think dark fiber must be different then unused fiber. i mean for example. 10gigabit ethernet runs on dark fiber. dark must be something related to bandwidth or wavelength. if someone knows dark fiber definition i ll be happy. _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what is dark fiber?
Blatantly ripped from Newton Telecom Dictionary: Dark Fiber Unused fiber through which no light in transmitted or installed fiber optic cable not carrying a signal. Sometimes dark fiber is sold by a carrier without the (usually) accompanying transmission service. It's "dark" because it's sold without light communication transmission. The customer is expected to put his own electronics and signals on the fiber and make it light. > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > bahadir korkmaz > Sent: Tuesday, September 05, 2000 11:04 AM > To: [EMAIL PROTECTED] > Subject: what is dark fiber? > > > hi. > what is dark fiber? > i found some sites that says dark fiber means unused fiber. > is it so? > i think dark fiber must be different then unused fiber. > i mean for example. 10gigabit ethernet runs on dark fiber. > dark must be something related to bandwidth or wavelength. > > if someone knows dark fiber definition i ll be happy. > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > Share information about yourself, create your own public profile at > http://profiles.msn.com. > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what is dark fiber?
Good definition. Also buildings with fiber and electronics attached are referred to as "lit" buildings. For example I can say that my company has 200 "lit" buildings in the Portland metro area meaning we have fiber AND electronics in those buildings. Most LEC's or CLEC's don't provide dark fiber any more. Not enough money in it. -Bart KurekSales EngineerElectric Lightwave Inc. (ELIX)http://www.eli.netmailto:[EMAIL PROTECTED] - Original Message - From: Martin-Guy Richard To: [EMAIL PROTECTED] Sent: Tuesday, September 05, 2000 10:06 AM Subject: Re: what is dark fiber? Hi, Dark fiber Dark fiber is optical fiber infrastructure (cabling and repeater) that is currently in place but is not being used. Optical fiber conveys information in the form of light pulses so the "dark" means no light pulses are being sent. Dark fiber can refer to infrastructure that is in place but not yet ready to use. For example, some electric utilities have installed optical fiber cable where they already have power lines installed in the expectation that they can lease the infrastructure to telephone or cable TV companies or use it to interconnect their own offices. To the extent that these installations are unused, they are described as dark. "Dark fiber service" is service provided by local exchange carriers (local exchange carrier) for the maintenance of optical fiber transmission capacity between customer locations in which the light for the fiber is provided by the customer rather than the LEC. I took that definition on www.whatis.com: http://www.whatis.com/WhatIs_Definition_Page/0,4152,211891,00.html bahadir korkmaz wrote: hi. what is dark fiber? i found some sites that says dark fiber means unused fiber. is it so? i think dark fiber must be different then unused fiber. i mean for example. 10gigabit ethernet runs on dark fiber. dark must be something related to bandwidth or wavelength. if someone knows dark fiber definition i ll be happy. _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what is dark fiber?
dark fiber is a term usually used by providers to indicate fiber that does not have light passing over it (unused). Richard Dennard Network Engineer HY_SPEED_DATA phone 814-260-3966 fax 814-274-7370 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of bahadir korkmaz Sent: Tuesday, September 05, 2000 11:04 AM To: [EMAIL PROTECTED] Subject: what is dark fiber? hi. what is dark fiber? i found some sites that says dark fiber means unused fiber. is it so? i think dark fiber must be different then unused fiber. i mean for example. 10gigabit ethernet runs on dark fiber. dark must be something related to bandwidth or wavelength. if someone knows dark fiber definition i ll be happy. _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what is dark fiber?
Dark Fiber is when you only lease the transport for yourself ( company use ) you do not lease the services like IP network or 10 baseT LAN you can use it as a FDDI ring or giga. ethernet most provider will use the term black fiber when the services require by some one is not define in there company, so they can cost it as a black fiber services bahadir korkmaz wrote: > > hi. > what is dark fiber? > i found some sites that says dark fiber means unused fiber. > is it so? > i think dark fiber must be different then unused fiber. > i mean for example. 10gigabit ethernet runs on dark fiber. > dark must be something related to bandwidth or wavelength. > > if someone knows dark fiber definition i ll be happy. > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > Share information about yourself, create your own public profile at > http://profiles.msn.com. > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what is dark fiber?
Dark fiber might be one of those terms that is used differently from place to place. But when I used to splice fiber for a LEC, we referred to dark fiber as unused and more importantly unusable. The engineering group would send us the prints and assign the fibers that they wanted us to splice. There would be fiber splices moving the light from point "a" to point "b". In the process of moving from one cable run to another, we would end up with fiber that was "dark" or unusable because they had been cut and had no way of terminating back to one of the central offices. -Original Message- From: David [mailto:[EMAIL PROTECTED]] Sent: Tuesday, September 05, 2000 2:56 PM To: [EMAIL PROTECTED] Subject: Re: what is dark fiber? It is my understanding that dark fiber is un-used/non-saturated fiber. I havn't heard that its a special type of fiber, just a condition of the fiber. "bahadir korkmaz" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > hi. > what is dark fiber? > i found some sites that says dark fiber means unused fiber. > is it so? > i think dark fiber must be different then unused fiber. > i mean for example. 10gigabit ethernet runs on dark fiber. > dark must be something related to bandwidth or wavelength. > > if someone knows dark fiber definition i ll be happy. > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > Share information about yourself, create your own public profile at > http://profiles.msn.com. > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what is dark fiber?
Hi, Dark fiber Dark fiber is optical fiber infrastructure (cabling and repeater) that is currently in place but is not being used. Optical fiber conveys information in the form of light pulses so the "dark" means no light pulses are being sent. Dark fiber can refer to infrastructure that is in place but not yet ready to use. For example, some electric utilities have installed optical fiber cable where they already have power lines installed in the expectation that they can lease the infrastructure to telephone or cable TV companies or use it to interconnect their own offices. To the extent that these installations are unused, they are described as dark. "Dark fiber service" is service provided by local exchange carriers (local exchange carrier) for the maintenance of optical fiber transmission capacity between customer locations in which the light for the fiber is provided by the customer rather than the LEC. I took that definition on www.whatis.com: http://www.whatis.com/WhatIs_Definition_Page/0,4152,211891,00.html bahadir korkmaz wrote: hi. what is dark fiber? i found some sites that says dark fiber means unused fiber. is it so? i think dark fiber must be different then unused fiber. i mean for example. 10gigabit ethernet runs on dark fiber. dark must be something related to bandwidth or wavelength. if someone knows dark fiber definition i ll be happy. _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what is dark fiber?
When we use this term at my work place, it means we manage the fiber. Dark fiber = Customer managed. Nabil -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Darren Johnson Sent: Tuesday, September 05, 2000 1:26 PM To: bahadir korkmaz; [EMAIL PROTECTED] Subject: RE: what is dark fiber? Blatantly ripped from Newton Telecom Dictionary: Dark Fiber Unused fiber through which no light in transmitted or installed fiber optic cable not carrying a signal. Sometimes dark fiber is sold by a carrier without the (usually) accompanying transmission service. It's "dark" because it's sold without light communication transmission. The customer is expected to put his own electronics and signals on the fiber and make it light. > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > bahadir korkmaz > Sent: Tuesday, September 05, 2000 11:04 AM > To: [EMAIL PROTECTED] > Subject: what is dark fiber? > > > hi. > what is dark fiber? > i found some sites that says dark fiber means unused fiber. > is it so? > i think dark fiber must be different then unused fiber. > i mean for example. 10gigabit ethernet runs on dark fiber. > dark must be something related to bandwidth or wavelength. > > if someone knows dark fiber definition i ll be happy. > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > Share information about yourself, create your own public profile at > http://profiles.msn.com. > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what is dark fiber?
Think for a minute. How does fiber transmit data? Using light. So when the provider is selling "dark fiber" it means that it's fiber without the light source to transmit the data. You provide your own. Generally get it at a discount but in practice it ends up costing about the same since the cost of management shifts to you. From what I hear, its easier and cheaper in the long run to just go with standard fiber. However, it also means that you're at the mercy of the provider for service (of course you are anyway...) Karen E Young Network Engineer ELF Technologies, Inc [EMAIL PROTECTED] "bahadir korkmaz" cc: Sent by: Subject: what is dark fiber? [EMAIL PROTECTED] om 09/05/2000 09:03 AM Please respond to "bahadir korkmaz" hi. what is dark fiber? i found some sites that says dark fiber means unused fiber. is it so? i think dark fiber must be different then unused fiber. i mean for example. 10gigabit ethernet runs on dark fiber. dark must be something related to bandwidth or wavelength. if someone knows dark fiber definition i ll be happy. _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what is dark fiber?
David is correct. Dark fiber is unprovisioned by the carrier and is useful for campus and MAN installations. For example, I can order dark fiber between buildings in the same city (under 70 miles) and run whatever services I wish (DWDM, GE, etc). 'Light' fiber (the term does not exist) is provisioned by a carrier. In this instance, I must coordinate and pay for whatever service I am running. For example, I would specify SONET, GE, etc. The benefit of this installation is that the service is generally managed and I can greatly increase the distances. Given the option, and a good price, however, I would always seek out dark fiber - it provides the most flexability. Check out mmfn.com for more information on providers that have dark fiber (I don't work for them, but they just presented me with a great sales pitch a month ago). Hope this helps. --- David <[EMAIL PROTECTED]> wrote: > It is my understanding that dark fiber is > un-used/non-saturated fiber. I > havn't heard that its a special type of fiber, just > a condition of the > fiber. > > > > "bahadir korkmaz" <[EMAIL PROTECTED]> > wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > hi. > > what is dark fiber? > > i found some sites that says dark fiber means > unused fiber. > > is it so? > > i think dark fiber must be different then unused > fiber. > > i mean for example. 10gigabit ethernet runs on > dark fiber. > > dark must be something related to bandwidth or > wavelength. > > > > if someone knows dark fiber definition i ll be > happy. > > > _ > > Get Your Private, Free E-mail from MSN Hotmail at > http://www.hotmail.com. > > > > Share information about yourself, create your own > public profile at > > http://profiles.msn.com. > > > > ___ > > UPDATED Posting Guidelines: > http://www.groupstudy.com/list/guide.html > > FAQ, list archives, and subscription info: > http://www.groupstudy.com > > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > > > > ___ > UPDATED Posting Guidelines: > http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: > http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] = Robert Padjen __ Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/ ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what is dark fiber?
Exactly. Dark means that the provider does not see your traffic or manage the fiber. Dark fiber is hard to acquire these days for that reason; most telco's want to manage the fiber that they provide at an additional cost. If they don't manage it they don't make too much of a profit. I have a few strands in my network. I provide the muxes and light it; the telco just provides the fiber itself. Dennis -Original Message- From: Nabil Fares [mailto:[EMAIL PROTECTED]] Sent: Tuesday, September 05, 2000 1:07 PM To: 'Darren Johnson'; 'bahadir korkmaz'; [EMAIL PROTECTED] Subject: RE: what is dark fiber? When we use this term at my work place, it means we manage the fiber. Dark fiber = Customer managed. Nabil -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Darren Johnson Sent: Tuesday, September 05, 2000 1:26 PM To: bahadir korkmaz; [EMAIL PROTECTED] Subject: RE: what is dark fiber? Blatantly ripped from Newton Telecom Dictionary: Dark Fiber Unused fiber through which no light in transmitted or installed fiber optic cable not carrying a signal. Sometimes dark fiber is sold by a carrier without the (usually) accompanying transmission service. It's "dark" because it's sold without light communication transmission. The customer is expected to put his own electronics and signals on the fiber and make it light. > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > bahadir korkmaz > Sent: Tuesday, September 05, 2000 11:04 AM > To: [EMAIL PROTECTED] > Subject: what is dark fiber? > > > hi. > what is dark fiber? > i found some sites that says dark fiber means unused fiber. > is it so? > i think dark fiber must be different then unused fiber. > i mean for example. 10gigabit ethernet runs on dark fiber. > dark must be something related to bandwidth or wavelength. > > if someone knows dark fiber definition i ll be happy. > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > Share information about yourself, create your own public profile at > http://profiles.msn.com. > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what is dark fiber?
I think dark fibre means a OC3 or OC12 link Jason -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of bahadir korkmaz Sent: Wednesday, September 06, 2000 12:04 AM To: [EMAIL PROTECTED] Subject: what is dark fiber? hi. what is dark fiber? i found some sites that says dark fiber means unused fiber. is it so? i think dark fiber must be different then unused fiber. i mean for example. 10gigabit ethernet runs on dark fiber. dark must be something related to bandwidth or wavelength. if someone knows dark fiber definition i ll be happy. _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what is dark fiber?
Hello, Dark fibre simply means unused fibre, or "a piece of unconnected fibre". If you connect OC-3c interfaces to both ends of a dark fibre, then the fibre becomes an OC-3c link. If you connect both ends of the dark fibre to gigabit ethernet interfaces, then that becomes a GE link. Got it ? Howard -- From: Yee, Jason To: 'bahadir korkmaz'; '[EMAIL PROTECTED]' Subject: RE: what is dark fiber? Date: Wednesday, September 06, 2000 10:27AM I think dark fibre means a OC3 or OC12 link Jason -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of bahadir korkmaz Sent: Wednesday, September 06, 2000 12:04 AM To: [EMAIL PROTECTED] Subject: what is dark fiber? hi. what is dark fiber? i found some sites that says dark fiber means unused fiber. is it so? i think dark fiber must be different then unused fiber. i mean for example. 10gigabit ethernet runs on dark fiber. dark must be something related to bandwidth or wavelength. if someone knows dark fiber definition i ll be happy. _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what is dark fiber?
this is a misconception. Dark fiber or Dark fibre as we can it here in England.God save the Queen an all that is actually a fibre based product that enables long distances to be covered.Where as fibre has approximatley a 2km depth, Dark fibre is able to run for much longer lengths. i have seen it used for up to 20 30 40 miles > -Original Message- > From: Richard Dennard [SMTP:[EMAIL PROTECTED]] > Sent: 05 September 2000 19:53 > To: bahadir korkmaz > Cc: Cisco > Subject: RE: what is dark fiber? > > dark fiber is a term usually used by providers to indicate fiber that does > not have light passing over it (unused). > > Richard Dennard > Network Engineer > HY_SPEED_DATA > phone 814-260-3966 > fax 814-274-7370 > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > bahadir korkmaz > Sent: Tuesday, September 05, 2000 11:04 AM > To: [EMAIL PROTECTED] > Subject: what is dark fiber? > > > hi. > what is dark fiber? > i found some sites that says dark fiber means unused fiber. > is it so? > i think dark fiber must be different then unused fiber. > i mean for example. 10gigabit ethernet runs on dark fiber. > dark must be something related to bandwidth or wavelength. > > if someone knows dark fiber definition i ll be happy. > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > Share information about yourself, create your own public profile at > http://profiles.msn.com. > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what is dark fiber?
Hello, as far as I understood from the ISP's the "dark fiber" is the equivalent of a leased line: the ISP provides you the Physical connectivity between the endpoints, but they do not provide any routing This kind of commercial offer is mainly used by ISPs that use DWDM on their fibers and they can offer one wavelength to you. --- Gabriel Neagoe, GN379-RIPE Networking solutions consultant CCNP, CCDA S&T Romania tel: +401 20 40 300 fax: +401 20 40 310 --- > -Original Message- > From: Fomes Iain [SMTP:[EMAIL PROTECTED]] > Sent: Wednesday, September 06, 2000 4:04 PM > To: '[EMAIL PROTECTED]' > Subject: RE: what is dark fiber? > > > this is a misconception. > Dark fiber or Dark fibre as we can it here in England.God save the Queen > an > all that is actually a fibre based product that enables long distances to > be > covered.Where as fibre has approximatley a 2km depth, Dark fibre is able > to > run for much longer lengths. > i have seen it used for up to 20 30 40 miles > > > -Original Message- > > From: Richard Dennard [SMTP:[EMAIL PROTECTED]] > > Sent: 05 September 2000 19:53 > > To: bahadir korkmaz > > Cc: Cisco > > Subject:RE: what is dark fiber? > > > > dark fiber is a term usually used by providers to indicate fiber that > does > > not have light passing over it (unused). > > > > Richard Dennard > > Network Engineer > > HY_SPEED_DATA > > phone 814-260-3966 > > fax 814-274-7370 > > > > -Original Message- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > bahadir korkmaz > > Sent: Tuesday, September 05, 2000 11:04 AM > > To: [EMAIL PROTECTED] > > Subject: what is dark fiber? > > > > > > hi. > > what is dark fiber? > > i found some sites that says dark fiber means unused fiber. > > is it so? > > i think dark fiber must be different then unused fiber. > > i mean for example. 10gigabit ethernet runs on dark fiber. > > dark must be something related to bandwidth or wavelength. > > > > if someone knows dark fiber definition i ll be happy. > > > _ > > Get Your Private, Free E-mail from MSN Hotmail at > http://www.hotmail.com. > > > > Share information about yourself, create your own public profile at > > http://profiles.msn.com. > > > > ___ > > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > > FAQ, list archives, and subscription info: http://www.groupstudy.com > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > ___ > > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > > FAQ, list archives, and subscription info: http://www.groupstudy.com > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what is dark fiber?
This sounds more like the distinction between multimode and single mode fiber. -Brad At 09:04 AM 9/6/00 -0400, Fomes Iain wrote: > > this is a misconception. >Dark fiber or Dark fibre as we can it here in England.God save the Queen an >all that is actually a fibre based product that enables long distances to be >covered.Where as fibre has approximatley a 2km depth, Dark fibre is able to >run for much longer lengths. >i have seen it used for up to 20 30 40 miles > >> -Original Message- >> From:Richard Dennard [SMTP:[EMAIL PROTECTED]] >> Sent:05 September 2000 19:53 >> To: bahadir korkmaz >> Cc: Cisco >> Subject: RE: what is dark fiber? >> >> dark fiber is a term usually used by providers to indicate fiber that does >> not have light passing over it (unused). >> >> Richard Dennard >> Network Engineer >> HY_SPEED_DATA >> phone 814-260-3966 >> fax 814-274-7370 >> >> -Original Message- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of >> bahadir korkmaz >> Sent: Tuesday, September 05, 2000 11:04 AM >> To: [EMAIL PROTECTED] >> Subject: what is dark fiber? >> >> >> hi. >> what is dark fiber? >> i found some sites that says dark fiber means unused fiber. >> is it so? >> i think dark fiber must be different then unused fiber. >> i mean for example. 10gigabit ethernet runs on dark fiber. >> dark must be something related to bandwidth or wavelength. >> >> if someone knows dark fiber definition i ll be happy. >> _ >> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. >> >> Share information about yourself, create your own public profile at >> http://profiles.msn.com. >> >> ___ >> UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html >> FAQ, list archives, and subscription info: http://www.groupstudy.com >> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] >> >> ___ >> UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html >> FAQ, list archives, and subscription info: http://www.groupstudy.com >> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > >___ >UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html >FAQ, list archives, and subscription info: http://www.groupstudy.com >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associate-Announcement.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what is dark fiber?
Depends on who you are talking to. To me dark fiber means 1. fiber strands that are currently not in use, or 2. private fiber that you or your company has installed, that is not part of the local telephone company's infrastructure. This is how I have been using the term for over 15 years. "Yee, Jason" wrote: > I think dark fibre means a OC3 or OC12 link > > Jason > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > bahadir korkmaz > Sent: Wednesday, September 06, 2000 12:04 AM > To: [EMAIL PROTECTED] > Subject: what is dark fiber? > > hi. > what is dark fiber? > i found some sites that says dark fiber means unused fiber. > is it so? > i think dark fiber must be different then unused fiber. > i mean for example. 10gigabit ethernet runs on dark fiber. > dark must be something related to bandwidth or wavelength. > > if someone knows dark fiber definition i ll be happy. > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > Share information about yourself, create your own public profile at > http://profiles.msn.com. > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associate-Announcement.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what is dark fiber?
Actually, none of you are right! Here's the only correct and right answer: Dark fiber is when you poke an active SMF strand in your eye and blind yourself in at least 1 eye. Immediately after, you will stumble around in the dark, tripping over the fiber that blinded you, hence the term, "dark fiber."Interestingly enough, the term was coined by a Microsoft employee working on a Nortel switch trying to connect to an IBM PS/2 to print to an Apple LaserWriter. There, I have insulted enough of the industry. On a more serious note, taken from www.whatis.com website: Dark fiber is optical fiber infrastructure (cabling and repeater) that is currently in place but is not being used. Optical fiber conveys information in the form of light pulses so the "dark" means no light pulses are being sent. Dark fiber can refer to infrastructure that is in place but not yet ready to use. For example, some electric utilities have installed optical fiber cable where they already have power lines installed in the expectation that they can lease the infrastructure to telephone or cable TV companies or use it to interconnect their own offices. To the extent that these installations are unused, they are described as dark. "Dark fiber service" is service provided by local exchange carriers (local exchange carrier) for the maintenance of optical fiber transmission capacity between customer locations in which the light for the fiber is provided by the customer rather than the LEC. Works for me! Dark fiber = any piece of INSTALLED fiber not lit up. Your carrier may or may not offer protection against backhoe cowboys who would trench ya fiber right out of the ground...seriously! Fibers, I mean, flames, to [EMAIL PROTECTED] Charles "Ty Hill" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Depends on who you are talking to. To me dark fiber means 1. fiber strands > that are currently not in use, or 2. private fiber that you or your company > has installed, that is not part of the local telephone company's > infrastructure. > This is how I have been using the term for over 15 years. > > > > "Yee, Jason" wrote: > > > I think dark fibre means a OC3 or OC12 link > > > > Jason > > > > -Original Message- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > bahadir korkmaz > > Sent: Wednesday, September 06, 2000 12:04 AM > > To: [EMAIL PROTECTED] > > Subject: what is dark fiber? > > > > hi. > > what is dark fiber? > > i found some sites that says dark fiber means unused fiber. > > is it so? > > i think dark fiber must be different then unused fiber. > > i mean for example. 10gigabit ethernet runs on dark fiber. > > dark must be something related to bandwidth or wavelength. > > > > if someone knows dark fiber definition i ll be happy. > > _ > > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > > > Share information about yourself, create your own public profile at > > http://profiles.msn.com. > > > > ___ > > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > > FAQ, list archives, and subscription info: http://www.groupstudy.com > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > ___ > > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > > FAQ, list archives, and subscription info: http://www.groupstudy.com > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > **NOTE: New CCNA/CCDA List has been formed. For more information go to > http://www.groupstudy.com/list/Associate-Announcement.html > _ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associate-Announcement.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what is dark fiber?
I thought that dark fiber was only used with DED's (dark-emitting diodes). MLC Ty Hill <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Depends on who you are talking to. To me dark fiber means 1. fiber strands > that are currently not in use, or 2. private fiber that you or your company > has installed, that is not part of the local telephone company's > infrastructure. > This is how I have been using the term for over 15 years. > > > > "Yee, Jason" wrote: > > > I think dark fibre means a OC3 or OC12 link > > > > Jason > > > > -Original Message- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > bahadir korkmaz > > Sent: Wednesday, September 06, 2000 12:04 AM > > To: [EMAIL PROTECTED] > > Subject: what is dark fiber? > > > > hi. > > what is dark fiber? > > i found some sites that says dark fiber means unused fiber. > > is it so? > > i think dark fiber must be different then unused fiber. > > i mean for example. 10gigabit ethernet runs on dark fiber. > > dark must be something related to bandwidth or wavelength. > > > > if someone knows dark fiber definition i ll be happy. > > _ > > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > > > Share information about yourself, create your own public profile at > > http://profiles.msn.com. > > > > ___ > > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > > FAQ, list archives, and subscription info: http://www.groupstudy.com > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > ___ > > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > > FAQ, list archives, and subscription info: http://www.groupstudy.com > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > **NOTE: New CCNA/CCDA List has been formed. For more information go to > http://www.groupstudy.com/list/Associate-Announcement.html > _ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associate-Announcement.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what is dark fiber?
Dark fiber is fiber that is not being used. ie, no light is passed through it, hence the term "dark" Clayton Dukes Internetwork Solutions Engineer Internetwork Management Engineer Thrupoint, Inc. CCNA, CCDA, CCDP, CCNP SunCSA, Etc. - Original Message - From: "Yee, Jason" <[EMAIL PROTECTED]> To: "'bahadir korkmaz'" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Tuesday, September 05, 2000 10:27 PM Subject: RE: what is dark fiber? > I think dark fibre means a OC3 or OC12 link > > Jason > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > bahadir korkmaz > Sent: Wednesday, September 06, 2000 12:04 AM > To: [EMAIL PROTECTED] > Subject: what is dark fiber? > > > hi. > what is dark fiber? > i found some sites that says dark fiber means unused fiber. > is it so? > i think dark fiber must be different then unused fiber. > i mean for example. 10gigabit ethernet runs on dark fiber. > dark must be something related to bandwidth or wavelength. > > if someone knows dark fiber definition i ll be happy. > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > Share information about yourself, create your own public profile at > http://profiles.msn.com. > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > **NOTE: New CCNA/CCDA List has been formed. For more information go to > http://www.groupstudy.com/list/Associates.html > _ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what is dark fiber?
The obvious answer here is... "It Depends" If you search on Dark Fiber, you will get a number of answers. Dark fiber refers to unused fiber-optic cable. Often times companies lay more lines than what's needed in order to curb costs of having to do it again and again. The dark strands can be leased to individuals or other companies who want to establish optical connections among their own locations. In this case, the fiber is neither controlled by nor connected to the owning company. Instead, the leasing company or individual provides the necessary components to make it functional. Please let this thread die... The last 20 posts have done nothing to further the knowledge gained, only repeat the explanations over and over and ultimately waste bandwidth. Brad Stanfield Network/Integration Engineer [EMAIL PROTECTED] Government Micro Resources Network Operations Control Center Norfolk Naval Shipyard Bldg 33 NAVSEA NCOE 757-393-9526 1-800-626-6622 -Original Message- From: CiscoDiety [mailto:[EMAIL PROTECTED]] Sent: Monday, September 11, 2000 11:12 AM To: Yee, Jason; 'bahadir korkmaz'; [EMAIL PROTECTED] Subject: Re: what is dark fiber? Dark fiber is fiber that is not being used. ie, no light is passed through it, hence the term "dark" Clayton Dukes Internetwork Solutions Engineer Internetwork Management Engineer Thrupoint, Inc. CCNA, CCDA, CCDP, CCNP SunCSA, Etc. - Original Message - From: "Yee, Jason" <[EMAIL PROTECTED]> To: "'bahadir korkmaz'" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Tuesday, September 05, 2000 10:27 PM Subject: RE: what is dark fiber? > I think dark fibre means a OC3 or OC12 link > > Jason > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > bahadir korkmaz > Sent: Wednesday, September 06, 2000 12:04 AM > To: [EMAIL PROTECTED] > Subject: what is dark fiber? > > > hi. > what is dark fiber? > i found some sites that says dark fiber means unused fiber. > is it so? > i think dark fiber must be different then unused fiber. > i mean for example. 10gigabit ethernet runs on dark fiber. > dark must be something related to bandwidth or wavelength. > > if someone knows dark fiber definition i ll be happy. > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > Share information about yourself, create your own public profile at > http://profiles.msn.com. > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > **NOTE: New CCNA/CCDA List has been formed. For more information go to > http://www.groupstudy.com/list/Associates.html > _ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what is dark fiber?
thank you -Original Message- From: CiscoDiety [mailto:[EMAIL PROTECTED]] Sent: Monday, September 11, 2000 11:12 PM To: Yee, Jason; 'bahadir korkmaz'; [EMAIL PROTECTED] Subject: Re: what is dark fiber? Dark fiber is fiber that is not being used. ie, no light is passed through it, hence the term "dark" Clayton Dukes Internetwork Solutions Engineer Internetwork Management Engineer Thrupoint, Inc. CCNA, CCDA, CCDP, CCNP SunCSA, Etc. - Original Message - From: "Yee, Jason" <[EMAIL PROTECTED]> To: "'bahadir korkmaz'" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Tuesday, September 05, 2000 10:27 PM Subject: RE: what is dark fiber? > I think dark fibre means a OC3 or OC12 link > > Jason > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > bahadir korkmaz > Sent: Wednesday, September 06, 2000 12:04 AM > To: [EMAIL PROTECTED] > Subject: what is dark fiber? > > > hi. > what is dark fiber? > i found some sites that says dark fiber means unused fiber. > is it so? > i think dark fiber must be different then unused fiber. > i mean for example. 10gigabit ethernet runs on dark fiber. > dark must be something related to bandwidth or wavelength. > > if someone knows dark fiber definition i ll be happy. > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > Share information about yourself, create your own public profile at > http://profiles.msn.com. > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > **NOTE: New CCNA/CCDA List has been formed. For more information go to > http://www.groupstudy.com/list/Associates.html > _ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
