Feeds

Nextgen rolls 100G, muxes about to 400G

Capacity hits 18 Terabits-per-second thanks to modulated signalling

Next gen security for virtualised datacentres

Nextgen Networks is rolling out 100 Gbps as the next upgrade to its network, with plans afoot to kick that along to 400 Gbps as demand rises.

The 400 Gbps capability has already been tested, Nextgen says, as a proof of concept with its supplier Alcatel-Lucent – on a live network, without interrupting customer traffic.

The carrier told journalists yesterday the upgrade has been a long time coming: its last major refresh put a mere 10 Gbps per wavelength on the network. As CTO Phil Martell said, Nextgen – along with other carriers around the world – then suffered something of a roadblock.

At 10 Gbps, he said, optical technology hit its first major hurdle: the original model of “on-off” signalling had very little room left for improvement. In getting “Moore's law” moving again in the optical backbone, customers like Nextgen had to wait for the vendor community to shift to modulated signalling.

Martell pointed out that to those familiar with old-style RF-on-coax multiplexing, the advent of coherent optical technology put them on familiar ground. While “it's not your grandmother's WDM [wavelength division multiplexing – El Reg] network”, he said the new technology “is more complex and demanding”.

And more flexible: with reconfigurable add-drop-multiplexers going into the network, Martell added, the company will be able to create customer networks with more complex topologies than a simple point-to-point configuration.

When the current 100 Gbps implementation is completed, Nextgen's links will run an aggregate 18 Tbps capacity. The implementation has also involved getting rid of repeater/regeneration equipment that's no longer needed: the network is running un-regenerated on all links including the Adelaide-Perth connections. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
6 Obvious Reasons Why Facebook Will Ban This Article (Thank God)
Clampdown on clickbait ... and El Reg is OK with this
So, Apple won't sell cheap kit? Prepare the iOS garden wall WRECKING BALL
It can throw the low cost race if it looks to the cloud
Time Warner Cable customers SQUEAL as US network goes offline
A rude awakening: North Americans greeted with outage drama
We need less U.S. in our WWW – Euro digital chief Steelie Neelie
EC moves to shift status quo at Internet Governance Forum
EE fails to apologise for HUGE T-Mobile outage that hit Brits on Friday
Customer: 'Please change your name to occasionally somewhere'
EE plonks 4G in UK Prime Minister's backyard
OK, his constituency. Brace yourself for EXTRA #selfies
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?