nanog mailing list archives
Re: 100G over 100 km of dark fiber
From: Ben Cannon <ben () 6by7 net>
Date: Fri, 30 Oct 2020 08:47:15 -0700
You could break this into 10x 10g coherent lanes, but you’re going to end up back close to coherent 100g prices. You’re at the threshold distance where you’re past all the short range tech and are seriously pushing it - whereas the 100g coherent tech is just taking off. How important is this link? Ms. Benjamin PD Cannon, ASCE 6x7 Networks & 6x7 Telecom, LLC CEO ben () 6by7 net "The only fully end-to-end encrypted global telecommunications company in the world.” FCC License KJ6FJJ
On Oct 30, 2020, at 7:19 AM, Jared Brown <nanog-isp () mail com> wrote: Hello NANOG! I need to push 100G over 100 km of dark fiber. Since there are no 100G pluggable optics with this reach (~25 dB), I have been offered coherent transport systems to solve my problem. This is all good and well, except total system costs start from high five figures. So, my question is, do I have any other options? I can't help noticing that you can break out a 100G QSFP into four 25G QSFPs. 25G DWDM systems are relatively inexpensive (low five figures), but can you make 25G DWDM go 100 km? I only need the one 100G, so I don't really need a highly scalable DWDM system. I can't put anything midspan, or if I could it would cost more than just going with a coherent system. Jared
Current thread:
- 100G over 100 km of dark fiber Jared Brown (Oct 30)
- Re: 100G over 100 km of dark fiber Tarko Tikan (Oct 30)
- Re: 100G over 100 km of dark fiber Dale W. Carder (Oct 30)
- Re: 100G over 100 km of dark fiber Nick Hilliard (Oct 30)
- Re: 100G over 100 km of dark fiber Sander Steffann (Oct 30)
- Re: 100G over 100 km of dark fiber Dale W. Carder (Oct 30)
- Re: 100G over 100 km of dark fiber Vincentz Petzholtz (Oct 30)
- Re: 100G over 100 km of dark fiber Brandon Martin (Oct 30)
- Re: 100G over 100 km of dark fiber Tarko Tikan (Oct 30)
- Re: 100G over 100 km of dark fiber Lady Benjamin PD Cannon (Oct 30)
- RE: 100G over 100 km of dark fiber Brian Turnbow via NANOG (Oct 30)
- Re: 100G over 100 km of dark fiber Ben Cannon (Oct 30)
- Re: 100G over 100 km of dark fiber Jared Brown (Oct 30)
- <Possible follow-ups>
- Re: 100G over 100 km of dark fiber Jürgen Jaritsch (Oct 31)
- Re: 100G over 100 km of dark fiber Tarko Tikan (Oct 30)