Feeds

Nextgen rolls 100G, muxes about to 400G

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

Intelligent flash storage arrays

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
Same old iPad? NO. The new 'soft SIMs' are BIG NEWS
AppleSIM 'ware to allow quick switch of carriers
Brits: Google, can you scrape 60k pages from web, pleeease
Hey, c'mon Choc Factory, it's our 'right to be forgotten'
Of COURSE Stephen Elop's to blame for Nokia woes, says author
'Google did have some unique propositions for Nokia'
FCC, Google cast eye over millimetre wireless
The smaller the wave, the bigger 5G's chances of success
It's even GRIMMER up North after MEGA SKY BROADBAND OUTAGE
By 'eck! Eccles cake production thrown into jeopardy
Mobile coverage on trains really is pants
You thought it was just *insert your provider here*, but now we have numbers
Don't mess with Texas ('cos it's getting Google Fiber and you're not)
A bit late, but company says 1Gbps Austin network almost ready to compete with AT&T
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
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.
Win a year’s supply of chocolate
There is no techie angle to this competition so we're not going to pretend there is, but everyone loves chocolate so who cares.
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?
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.