New Trans-Pacific Cable: Will It Improve Asia Bandwidth?
Jul 28, 2022 @ 2:04 pm
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NEC revealed that they have taken a contract to build a new trans-Pacific fiber-optic cable called JUNO.
The new cable (which will be 10,000km or about 7,000 miles long) is expected to be completed in about two and a half year, starting operating by the end of 2024.
And the bandwidth? 350Tbps. Now if you figure that the typical LEB link is on 1Gbps shared port, and there’s got to be 20 or so VMs at least with some providers sharing that port…350 * 1000 * 20 = capacity for 7 million new LEBs in Japan!
Well I suppose the rest of Japanese users might take a little of that bandwidth. Interestingly, the design has redundancy:
This cable will promote the development of digital economies by supporting the strong demand for communications, including the spread of 5G throughout Asia and North America. In addition, by providing communication routes from two separate locations in Japan to the US, the system will be highly resilient to natural disasters in the coastal areas of Japan.
NEC has been building submarine cables for 50 years and has over 300,000km under water at present.
I wonder if the Americans or Russians will be the first to send a submarine down to tap it.

Raindog308 is a longtime LowEndTalk community administrator, technical writer, and self-described techno polymath. With deep roots in the *nix world, he has a passion for systems both modern and vintage, ranging from Unix, Perl, Python, and Golang to shell scripting and mainframe-era operating systems like MVS. He’s equally comfortable with relational database systems, having spent years working with Oracle, PostgreSQL, and MySQL.
As an avid user of LowEndBox providers, Raindog runs an empire of LEBs, from tiny boxes for VPNs, to mid-sized instances for application hosting, and heavyweight servers for data storage and complex databases. He brings both technical rigor and real-world experience to every piece he writes.
Beyond the command line, Raindog is a lover of German Shepherds, high-quality knives, target shooting, theology, tabletop RPGs, and hiking in deep, quiet forests.
His goal with every article is to help users, from beginners to seasoned sysadmins, get more value, performance, and enjoyment out of their infrastructure.
You can find him daily in the forums at LowEndTalk under the handle @raindog308.
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