Re: what does dark fiber mean? [7:18718]
we pay $30,000/month for ours... But it spans aprox. 20+ miles... shorter runs would be less. -Patrick Mark Odette II 09/06/01 21:50 PM So- Just out of curiousity- Anybody have a rough amt. that Dark Fiber runs for?? Is it dependent upon the mileage, or is it rated out at a flat monthly fee. You'ld think that if it was only a couple hundred bucks a month, that all kinds of ISP startups would be using it to put their infrastructure together, and just have a specific site as their gateway to an upstream provider. Tell me if I'm coockoo about this theory. Mark Odette II - Original Message - From: Patrick Ramsey To: Sent: Thursday, September 06, 2001 7:03 PM Subject: Re: what does dark fiber mean? [7:18718] Close... Actually it's dark when nothing is attached, but it remain's dark even when CPE is attached. Dark fiber, the term is used by providers meaning that they lease you fiber that does not traverse their network. So technically, you can run anything across it as you wish. Take this example... I have a sonet ring from a local carrier and it is attached to their ATM infrastructure at 155mb. they (the carrier) are not really lighting the fiber but since it is a sonet node it is limited to ATM. (Or packet over sonet) but you still only get the bandwidth you pay for. However, if I purchase dark fiber meaning that it is not lit by the carrier, then I can run ATM across it at oc3, oc12, oc48, oc192, etc OR I can run 100fx or gig across it... However much money I feel like spending on the equipment is what will run across it. -Patrick Tony van Ree 09/06/0106:24PM Hi, Dark fibre is when you have, buy or rent a fibre cable that is terminated but has no equipment connected. Devices using fibre have either infra red or laser light thus making the cale non dark. Hope this helps. Teunis, Hobart, Tasmania Australia On Wednesday, September 05, 2001 at 10:16:07 PM, david wrote: Thanks, david -- www.tasmail.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=19120t=18718 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what does dark fiber mean? [7:18718]
We pay $900/mile/month for ours.. Patrick Ramsey wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... we pay $30,000/month for ours... But it spans aprox. 20+ miles... shorter runs would be less. -Patrick Mark Odette II 09/06/01 21:50 PM So- Just out of curiousity- Anybody have a rough amt. that Dark Fiber runs for?? Is it dependent upon the mileage, or is it rated out at a flat monthly fee. You'ld think that if it was only a couple hundred bucks a month, that all kinds of ISP startups would be using it to put their infrastructure together, and just have a specific site as their gateway to an upstream provider. Tell me if I'm coockoo about this theory. Mark Odette II - Original Message - From: Patrick Ramsey To: Sent: Thursday, September 06, 2001 7:03 PM Subject: Re: what does dark fiber mean? [7:18718] Close... Actually it's dark when nothing is attached, but it remain's dark even when CPE is attached. Dark fiber, the term is used by providers meaning that they lease you fiber that does not traverse their network. So technically, you can run anything across it as you wish. Take this example... I have a sonet ring from a local carrier and it is attached to their ATM infrastructure at 155mb. they (the carrier) are not really lighting the fiber but since it is a sonet node it is limited to ATM. (Or packet over sonet) but you still only get the bandwidth you pay for. However, if I purchase dark fiber meaning that it is not lit by the carrier, then I can run ATM across it at oc3, oc12, oc48, oc192, etc OR I can run 100fx or gig across it... However much money I feel like spending on the equipment is what will run across it. -Patrick Tony van Ree 09/06/0106:24PM Hi, Dark fibre is when you have, buy or rent a fibre cable that is terminated but has no equipment connected. Devices using fibre have either infra red or laser light thus making the cale non dark. Hope this helps. Teunis, Hobart, Tasmania Australia On Wednesday, September 05, 2001 at 10:16:07 PM, david wrote: Thanks, david -- www.tasmail.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=19122t=18718 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what does dark fiber mean? [7:18718]
So- Just out of curiousity- Anybody have a rough amt. that Dark Fiber runs for?? Is it dependent upon the mileage, or is it rated out at a flat monthly fee. You'ld think that if it was only a couple hundred bucks a month, that all kinds of ISP startups would be using it to put their infrastructure together, and just have a specific site as their gateway to an upstream provider. Tell me if I'm coockoo about this theory. Mark Odette II - Original Message - From: Patrick Ramsey To: Sent: Thursday, September 06, 2001 7:03 PM Subject: Re: what does dark fiber mean? [7:18718] Close... Actually it's dark when nothing is attached, but it remain's dark even when CPE is attached. Dark fiber, the term is used by providers meaning that they lease you fiber that does not traverse their network. So technically, you can run anything across it as you wish. Take this example... I have a sonet ring from a local carrier and it is attached to their ATM infrastructure at 155mb. they (the carrier) are not really lighting the fiber but since it is a sonet node it is limited to ATM. (Or packet over sonet) but you still only get the bandwidth you pay for. However, if I purchase dark fiber meaning that it is not lit by the carrier, then I can run ATM across it at oc3, oc12, oc48, oc192, etc OR I can run 100fx or gig across it... However much money I feel like spending on the equipment is what will run across it. -Patrick Tony van Ree 09/06/01 06:24PM Hi, Dark fibre is when you have, buy or rent a fibre cable that is terminated but has no equipment connected. Devices using fibre have either infra red or laser light thus making the cale non dark. Hope this helps. Teunis, Hobart, Tasmania Australia On Wednesday, September 05, 2001 at 10:16:07 PM, david wrote: Thanks, david -- www.tasmail.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=18889t=18718 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
what does dark fiber mean? [7:18718]
Thanks, david Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=18718t=18718 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what does dark fiber mean? [7:18718]
Some companies have run fiber optic lines in certain areas, mostly metropolitan areas, and they sell fiber runs to companies that require them. Dark means that the fiber carries no services when you get it, it is just a cable between 2 locations, you can then connect the fiber to equipment at both ends and run services over it. So I could order a dark fiber connection between downtown New York and uptown New York, and connect it to Gig E interfaces at both ends. Guy -Original Message- From: david [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 05, 2001 10:16 PM To: [EMAIL PROTECTED] Subject: what does dark fiber mean? [7:18718] Thanks, david Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=18724t=18718 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what does dark fiber mean? [7:18718]
Could i use dark fiber to connect 2 OC48 module on 6509s ? if ok,any difference from GE module connections on 6509s? Thanks, david Lupi, Guy wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Some companies have run fiber optic lines in certain areas, mostly metropolitan areas, and they sell fiber runs to companies that require them. Dark means that the fiber carries no services when you get it, it is just a cable between 2 locations, you can then connect the fiber to equipment at both ends and run services over it. So I could order a dark fiber connection between downtown New York and uptown New York, and connect it to Gig E interfaces at both ends. Guy -Original Message- From: david [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 05, 2001 10:16 PM To: [EMAIL PROTECTED] Subject: what does dark fiber mean? [7:18718] Thanks, david Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=18729t=18718 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what does dark fiber mean? [7:18718]
when you order dark fiber, you are getting fiber with nothing on it. it currently isn't running ATM, SONET, Gigabit Ethernet, or Fibre Channel. it's not providing a wavelength, or single or group of lambdas for you to use. you are getting the real thing. you want it to be good fiber (like corning e-leaf, or lucent truewave, etc) so you can use the most possible bandwidth on it (very high bandwidth applications in the 1/3 Tbps to Tbps+ range). otherwise, you probably don't need it (but it sure would be nice to have, if you got it on the cheap, or free). consider using wavelength services or [imuxed?] T1/DS3 or wireless local-loop instead. generally, when you get dark fiber, it means you get a 2F hand-off (sometimes 4F depending on the provider). the dark fiber is run SONET-ring style (assuming TDM is your method) with 2F/4F BLSR or UPSR and hopefully goes through a W-DCS and/or ADM (even better would be Optical, WDM-capable equivalents of the above) at the Gateway/Telco/Provider side-of-things. You don't want the 2F/4F hand-off to be collapsed or 'folded', meaning that the preferred method is two distinctly different paths into the building and also outside and also into the cable plant and also using APS 1+1 or 1:1 at the electrical level on the cards/equipment (1+1 is preferred, I guess). -dre david wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Thanks, david Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=18732t=18718 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what does dark fiber mean? [7:18718]
david wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Could i use dark fiber to connect 2 OC48 module on 6509s ? if ok,any difference from GE module connections on 6509s? if you were using DPT, yes. otherwise, you probably wouldn't want to. Maybe you could with GbE. I think you'd be wasting fiber if you weren't using WDM. If you got a 2F hand-off, you probably want to get an ADM and run it with APS 1:1 and 2F BLSR. That's just a guess, you might not want to protect it and use it all instead. In that case, you'd probably want two 6509's and use OSPF/ISIS/EIGRP to protect your IP investment. GbE would be cheaper than OC-48 blades, so that doesn't sound like too bad of an idea. People generally use SONET protection, but you don't have to if you don't want to. More power to that. What do you have on both sides? What's the application? What problem are you trying to solve? : -dre Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=18733t=18718 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what does dark fiber mean? [7:18718]
I just want to connect two campus network ,which 8 kms apart. i use each 6509 as the core switch at each campus. One 6509 will uplink to a 7609 router to access internet . I also wonder the connection means between 7609 and 6509,they are at one NOC. Thanks, David dre wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... david wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Could i use dark fiber to connect 2 OC48 module on 6509s ? if ok,any difference from GE module connections on 6509s? if you were using DPT, yes. otherwise, you probably wouldn't want to. Maybe you could with GbE. I think you'd be wasting fiber if you weren't using WDM. If you got a 2F hand-off, you probably want to get an ADM and run it with APS 1:1 and 2F BLSR. That's just a guess, you might not want to protect it and use it all instead. In that case, you'd probably want two 6509's and use OSPF/ISIS/EIGRP to protect your IP investment. GbE would be cheaper than OC-48 blades, so that doesn't sound like too bad of an idea. People generally use SONET protection, but you don't have to if you don't want to. More power to that. What do you have on both sides? What's the application? What problem are you trying to solve? : -dre Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=18736t=18718 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html 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?
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?
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 ST 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?
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]
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]
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" bahadir_korkmaz@hoTo: [EMAIL PROTECTED] tmail.com 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]
