Hi All! Who can provide a VLAN from SaoPaolo to Frankfurt for remote IX.BR participation? Please contact me off-list. I see there is only one undersea cable going directly from Brazil to Europe. Why?
On Sun, Jul 12, 2020 at 12:06 PM Max Tulyev <maxtul@netassist.ua> wrote:
Hi All!
Who can provide a VLAN from SaoPaolo to Frankfurt for remote IX.BR participation? Please contact me off-list.
I see there is only one undersea cable going directly from Brazil to Europe. Why?
And this single cable, Atlantis-2, has very little capacity so its usage is mostly voice traffic. There is a new cable in construction called EllaLink (https://ella.link/) that when installed will add plenty of capacity to this route, but most Brazil - Germany traffic goes thru the US nowadays. Alternative routes before EllaLink comes into operation would be one of the Brazil-Africa cables (one to Cameroon, the other to Angola) and then to Europe. Rubens
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. From: NANOG [mailto:nanog-bounces+colin-lists=highspeedcrow.ca@nanog.org] On Behalf Of Rubens Kuhl Sent: Sunday, July 12, 2020 10:19 AM Cc: Nanog <nanog@nanog.org> Subject: Re: SaoPaolo to Frankfurt On Sun, Jul 12, 2020 at 12:06 PM Max Tulyev <maxtul@netassist.ua <mailto:maxtul@netassist.ua> > wrote: Hi All! Who can provide a VLAN from SaoPaolo to Frankfurt for remote IX.BR <http://IX.BR> participation? Please contact me off-list. I see there is only one undersea cable going directly from Brazil to Europe. Why? And this single cable, Atlantis-2, has very little capacity so its usage is mostly voice traffic. There is a new cable in construction called EllaLink (https://ella.link/) that when installed will add plenty of capacity to this route, but most Brazil - Germany traffic goes thru the US nowadays. Alternative routes before EllaLink comes into operation would be one of the Brazil-Africa cables (one to Cameroon, the other to Angola) and then to Europe. Rubens
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
On 13/Jul/20 16:23, Nick Hilliard wrote:
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.
One of the few applications where you wouldn't mind running a vendor-specific technology :-). Mark.
On 13/Jul/20 15:41, Colin Stanners (lists) wrote:
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.
There is only so far you can upgrade 20-year old repeaters until considering to replace all of them across the full length of the current system makes building a new system a simpler option. Repeaters aren't cheap, and you'd need more over a shorter interval distance to increase capacity, or deploy current generation ones to minimize cost without sacrificing ultimate capacity. Mark.
On Mon, Jul 13, 2020 at 12:01 PM Mark Tinka <mark.tinka@seacom.com> wrote:
On 12/Jul/20 17:19, Rubens Kuhl wrote:
Alternative routes before EllaLink comes into operation would be one of the Brazil-Africa cables (one to Cameroon, the other to Angola) and then to Europe.
Are you talking about SAex?
There is SACS as well.
Brazil-Angola cable is SACS, which for an European route would be paired with WACS to go from Angola to Portugal. Brazil-Cameroon cable is SAIL, which to get to Europe would be paired with ACE to go from Cameroon to Portugal or France. Rubens
On 13/Jul/20 17:16, Rubens Kuhl wrote:
Brazil-Angola cable is SACS, which for an European route would be paired with WACS to go from Angola to Portugal. Brazil-Cameroon cable is SAIL, which to get to Europe would be paired with ACE to go from Cameroon to Portugal or France.
WACS is also an option out of Limbe. Naturally, the trick will be finding out which operators have capacity on this combination of cables, for the OP. Best place to start would be to ask the consortium members. Mark.
On 13 Jul 2020, at 17:17, Rubens Kuhl <rubensk@gmail.com> wrote:
On Mon, Jul 13, 2020 at 12:01 PM Mark Tinka <mark.tinka@seacom.com> wrote:
On 12/Jul/20 17:19, Rubens Kuhl wrote:
Alternative routes before EllaLink comes into operation would be one of the Brazil-Africa cables (one to Cameroon, the other to Angola) and then to Europe.
Are you talking about SAex?
There is SACS as well.
Brazil-Angola cable is SACS, which for an European route would be paired with WACS to go from Angola to Portugal. Brazil-Cameroon cable is SAIL, which to get to Europe would be paired with ACE to go from Cameroon to Portugal or France.
Correct.
Rubens
Darwin-.
participants (6)
-
Colin Stanners (lists) -
dc＠darwincosta.com -
Mark Tinka -
Max Tulyev -
Nick Hilliard -
Rubens Kuhl