nanog mailing list archives
Re: SaoPaolo to Frankfurt
From: Nick Hilliard <nick () foobar org>
Date: Mon, 13 Jul 2020 15:23:11 +0100
Colin Stanners (lists) wrote on 13/07/2020 14:41:
Looking at the Wikipedia article, it claims that Atlantis-2 “can already be upgraded with current technology to 160Gbit/s”. Would be interesting why that wasn’t already done on this 20-year-old cable – assuming that the underground infrastructure (repeaters) are compatible with the newer modulations (or additional wavelengths, but that would have necessitated much more design), the upgrade cost should be small compared to the cable’s value.
160gbit/sec split over a standard 80ch itu dwdm grid sounds like 2gbit/sec per channel (although there are more efficient options than the standard itu grid). This sounds like it's seriously not worth it for today's bandwidth requirements, which might explain why it's only viable for voice traffic.
Nick
Current thread:
- SaoPaolo to Frankfurt Max Tulyev (Jul 12)
- Re: SaoPaolo to Frankfurt Rubens Kuhl (Jul 12)
- RE: SaoPaolo to Frankfurt Colin Stanners (lists) (Jul 13)
- Re: SaoPaolo to Frankfurt Nick Hilliard (Jul 13)
- Re: SaoPaolo to Frankfurt Mark Tinka (Jul 13)
- Re: SaoPaolo to Frankfurt Mark Tinka (Jul 13)
- RE: SaoPaolo to Frankfurt Colin Stanners (lists) (Jul 13)
- Re: SaoPaolo to Frankfurt Mark Tinka (Jul 13)
- Re: SaoPaolo to Frankfurt Rubens Kuhl (Jul 13)
- Re: SaoPaolo to Frankfurt Mark Tinka (Jul 13)
- Re: SaoPaolo to Frankfurt dc () darwincosta com (Jul 13)
- Re: SaoPaolo to Frankfurt Rubens Kuhl (Jul 12)