nanog mailing list archives
Re: 100G over 100 km of dark fiber
From: Tarko Tikan <tarko () lanparty ee>
Date: Fri, 30 Oct 2020 18:03:22 +0200
hey,
If it’s just a single 100G channel needed you could try 100GBASE-ZR4. Specified for 80km, 30db power budget they could actually reach more the 80km. Dispersion should also be „no" problem in the 1310nm length. I have to say that I never tried this on 100km distance without coherent solutions.
Just to add to my original suggestion, we just did 100G-ZR4 over 30dB link with pre-FEC BER 3.174E-11.
As OP is asking for a solution for 25dB I don't see any reason why ZR4 would not work and why you would need coherent, amplifiers or any other additional solution except when you are limited by QSFP28 SFF power.
-- tarko
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)