Networks

Oct 22, 2020

We Asked Kids What They Know About Submarine Cables

Be honest: do you actually know how many kilometers of submarine cables live under the ocean?

Do you know the obscure locations that got a new cable in 2020? Or what is most likely to damage subsea cables? (Don't say sharks.)

Feb 11, 2020

About That PLCN Delay: Four Trans-Pacific Cable Market Facts to Consider

There's been a lot of press about delayed approval for the Pacific Light Cable Network (PLCN) cable, which is due to connect Hong Kong, Taiwan, and the Philippines to the United States.

You can understand why this cable has gotten extra attention. Backers include Google, Facebook, and Pacific Light Data Communication (PLDC), which is owned by Chinese ISP Dr. Peng Telecom & Media Group.  

While the whole system is awaiting approval from U.S. authorities, Google and Facebook have requested that the FCC allow activation of the Taiwan and Philippines portions of the cable.

Dec 10, 2019

TeleGeography's Business Broadband Acronym Cheatsheet

The telecom space is loaded with acronyms. (Take this from the people who recently published a post about the difference between IP VPN, DIA, and EVPN.)

Today our Business Broadband Research Service team is giving telecom newbies and pros alike the broadband acronym cheatsheet of their dreams.

Dec 5, 2019

What is IP Transit?

Only a few of the world’s largest internet backbone providers get transit-free status, exchanging all of their traffic with other backbone providers via peering.

Alas, downstream internet service providers (ISPs), content providers, and other internet operators must purchase at least some upstream “transit” in order to connect their internal networks to the internet at large.

Nov 25, 2019

IP VPN, DIA, and EVPN, Explained

What's the Difference Between VPN, DIA, and EVPN?

Looking to set up your network? Here are some key definitions and explanations that will help you determine which service is right for your business.

Nov 22, 2019

Understanding Peering

Today we answer the burning question "what is peering and how does it work?"

Oct 29, 2019

A Brief History of ARPANET: The Early Internet

When was the internet born? On October 29, 1969, Professor Len Kleinrock and his team of graduate students at UCLA sent the first message over a network of computers that would eventually become the internet.

Oct 8, 2019

Is Your Planned Submarine Cable Doomed?

Anyone who follows the submarine cable sector knows that a lot of cables have been built in recent years—and investments in new cables keep coming.

I gave a presentation at Submarine Networks World 2019 in Singapore titled "Is Your Planned Submarine Cable Doomed?" My goal was not to identify particular planned cables that I think are doomed to fail, but rather to highlight some of the key flaws we often see when assessing cable operator business plans on behalf of investors.

Oct 3, 2019

Signals of Success: What to Look for in Submarine Cable Press Releases

I'm a cynic and you can be one, too!

This was the title of Tim Stronge's presentation during a recent webinar we did with our friends at Ciena.

Our favorite neighborhood cynic came bearing an important public service announcement for webinar attendees: just because you see a flashy slide deck or press release about a new submarine cable doesn't mean it's going to happen.

Jul 9, 2019

Building and Managing Security Empowered SD-WAN

The benefits of SD-WAN are apparent: more bandwidth, local breakouts, flexibility, etc. That being said, the larger attack surface makes it vital for security to be at the forefront of any modern deployment.