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Entries in AT&T (12)

Thursday
Nov092017

Juniper Networks opens up the optical line system 

Juniper Networks has responded to the demands of the large-scale data centre players with an open optical line system architecture.

Donyel Jones-WilliamsThe system vendor has created software external to its switch, IP router and optical transport platforms that centrally controls the optical layer.

Juniper has also announced a reconfigurable optical add-drop multiplexer (ROADM) - the TCX1000 - that is Lumentum’s own white box ROADM design. Juniper will offer the Lumentum white box as its own, part of its optical product portfolio.

The open line system architecture, including the TCX1000, is also being pitched to communications service providers that want an optical line system and prefer to deal with a single vendor.

“Juniper plans to address the optical layer with a combination of software and open hardware in the common optical layer,” says Andrew Schmitt, founder and lead analyst at Cignal AI. “This is the solution it will bring to customers rather than partnering with an optical vendor, which Juniper has tried several times without great success.”

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Wednesday
Oct042017

Sckipio’s G.fast silicon to enable gigabit services  

Sckipio’s newest G.fast broadband chipset family delivers 1.2 gigabits of aggregate bandwidth over 100m of telephone wire.

The start-up’s SCK-23000 chipset family implements the ITU’s G.fast Amendment 3 212a profile. The profile doubles the spectrum used from G.fast from 106MHz to 212MHz, boosting the broadband rates. In contrast, VDSL2 digital subscriber line technology uses 17MHz of spectrum only.

“What the telcos want is gigabit services,” says Michael Weissman, vice president of marketing at Sckipio. “This second-generation [chipset family] allows that.”

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Thursday
Feb092017

The Open ROADM MSA adds new capabilities in Release 2.0

The Multi-Source Agreement (MSA) for open reconfigurable add-drop multiplexers (ROADM) group expects to publish its second release in the coming months. The latest MSA specifications extend optical reach by including line amplification and adds support for flexible grid and lower-speed tributaries with OTN switching.

Xavier PougnardThe Open ROADM MSA, set up by AT&T, Ciena, Fujitsu and Nokia, is promoting interoperability between vendors’ ROADMs by specifying open interfaces for their control using software-defined networking (SDN) technology. Now, one year on, the MSA has 10 members, equally split between operators and systems vendors.

Orange joined the Open ROADM MSA last July and says it shares AT&T’s view that optical networks lack openness given the proprietary features of the vendors’ systems.

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Thursday
Feb262015

60-second interview with Infonetics' Andrew Schmitt

Market research firm Infonetics Research, now part of IHS Inc., has issued its 2014 summary of the global wavelength-division multiplexing (WDM) equipment market. Andrew Schmitt, research director for carrier transport networking, in a Q&A with Gazettabyte.

 

Andrew Schmitt

Q: Infonetics claims the global WDM market grew 6% in 2014, to total US $10 billion. What accounted for such impressive growth in 2014?

AS: Primarily North American strength from data centre-related spending and growth in China.

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Thursday
Nov272014

North American operators in an optical spending rethink 

Optical transport spending by the North American operators dropped 13 percent year-on-year in the third quarter of 2014, according to market research firm Dell'Oro Group.

Operators are rethinking the optical vendors they buy equipment from as they consider their future networks. "Software-defined networking (SDN) and Network Functions Virtualisation (NFV) - all the futuristic next network developments, operators are considering what that entails," says Jimmy Yu, vice president of optical transport research at Dell’Oro. "Those decisions have pushed out spending."

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Wednesday
Mar092011

Operators want to cut power by a fifth by 2020

Briefing: Green ICT

Part 2: Operators’ power efficiency strategies

Service providers have set themselves ambitious targets to reduce their energy consumption by a fifth by 2020. This despite the expected traffic they will carry being thirty times today’s volumes. Given the cost of electricity and operators’ requirements, such targets are not surprising: KPN, with its 12,000 sites in The Netherlands, consumes 1% of the country’s electricity.

 

“We also have to invest in capital expenditure for a big swap of equipment – in mobile and DSLAMs"

Philippe Tuzzolino, France Telecom-Orange

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Tuesday
Sep142010

AT&T domain suppliers

Date

Domain

Partners

Sept 2009

Wireline Access 

Ericsson

Feb 2010

Radio Access Network

Alcatel-Lucent, Ericsson

April 2010

Optical and transport equipment 

Ciena

July 2010

IP/MPLS/Ethernet/Evolved Packet Core

Alcatel-Lucent, Juniper, Cisco

 

The table shows the selected players in AT&T's domain supplier programme announced to date.

AT&T has stated that there will likely be eight domain supplier categories overall so four more have still to be detailed.

Looking at the list, several thoughts arise:

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