Hey Guys,
I have been talking with vendors and Google on single-mode versus multi-mode fiber for a while now. I am hoping you guys can help answer my questions because I feel like I am getting mixed answers, so I am here looking for another source. The current situation is we have OM2 multi-mode to all our IDFs. The furthest IDF we have is 1100 feet and the average IDF is 400-700 feet from the MDF. With this current project we are looking to have redundant 10GB links to all the IDFs. Going off Wikipedia I can do 10GB on OM2 up-to 270 feet, that works for two IDFs out of 15 so not good. At this point we need to talk about running new fiber to achieve redundant 10GB links. This is where I am pitting single-mode versus multi-mode fiber. Ideally, we want this to be the last fiber we run or at least is good for 15-20 years. If we want to upgrade our 10GB links to 40GB or 100GB sometime in the distant future I would appear to be in trouble with OM4/OM5 as the furthest supported distance for 100GB is 500 feet, which does not get all the IDFs. This leads me to believe we should run single-mode OS1 to all the IDFs. My question on that is simple, I hope. Can I run a 100GB link over 2-strands of OS1 fiber at 1100 feet? When it comes to single-mode am I just swapping SFP+ transceivers every time we want a bandwidth upgrade along with necessary switch hardware as the fiber is good for any speed? A better question is can 2-strands of OS1 fiber support any speed if the hardware is good on both ends?
I hope this makes sense. Let me know if more information is needed.
No comments:
Post a Comment