New group to set goals for next generation Ethernet
August 20, 2012 // Rick Merritt
A new group will tackle an issue that’s been a hot debate in communications for at least two years—should the next big leap for Ethernet be to 400 Gbits/second or 1Terabit/s.
The news comes as the IEEE 802.3 group overseeing Ethernet officially publishes its Ethernet Bandwidth Assessment report. The report, developed over the course of the last year, validated the groups conclusions from an earlier study that demand for bandwidth is doubling about every 24 months. At that rate, networks will need to support capacity requirements of a terabit per second in 2015 and 10 terabit per second by 2020, it said.
Everyone is worried about the coming tsunami of data, said John DAmbrosia, a veteran Ethernet standards organizer and chair of the new consensus group. Theres a lot of nervousness out there about how people will do it in a cost effective manner, he said.
The problem is there are no economically viable solutions on the horizon for terabit rates today, and bleeding-edge users say the more practical 400 Gbit/s target is not enough to meet their needs.
Engineers are currently hammering out specifications for 25 Gbit/s serial lanes and starting work on 50 Gbit/s channels at the Optical Internetworking Forum. It would take 20 to 40 of those fastest channels working in parallel to deliver TBit/s Ethernet rates.
Past experience have shown solutions using even 16 lanes are at the edge of what is economically practical. Thats in part because such dense parallel links push the limits of the number of pins that can be placed on a chip.
Thus some experts speculate the next big leap could require radical new modulation schemes or other breakthrough techniques. We need a fundamental technical paradigm shift to move to terabit, and nothing has emerged at this point, said DAmbrosia.All news
Audi, BMW, Daimler drive open source measurement data management
July 28, 2014
To enable a correct interpretation and comparison of test data across the automotive industry, a number of carmakers and ...
A roadmap for cool and lossless lasers, with Bismuth
ST opens MEMS microphone test laboratory
Update yourself on anti-counterfeiting measures at Mouser
60 GHz startup targets mobile
Dual 13A or single 26A μModule regulator integrates digital power system management
July 25, 2014
Datacenters and server farms contain vast amounts of digital electronics, such as ASICs, FPGAs and CPUs. Powering, monitoring ...
What's that smell? An app for that soon, says Sensirion
GE phosphor powder creates more vibrant LED displays
Sensor manufacturer extends software capabilities
- THE RTOS AS THE ENGINE POWERING THE INTERNET OF THINGS
- Testing GPS with a Simulator
- DSM presents: Select the best plastic for DDR4
- Dual 13A μModule Regulator with Digital Interface for Remote Monitoring & Control of Power
InterviewCEO interview: China, not Apple, is way to go, says mCube CEO
Ben Lee, CEO of MEMS startup mCube, explains why he wants to spend $37 million on being a supplier of sensors to Chinese ODMs and avoiding a design win with Apple or Samsung.
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Altium Ltd is offering EETimes Europe's readers the chance to win one TASKING VX-Toolset for ARM Cortex-M Premium Edition, normally licensed for 2.395 Euros, for ultra-rapid prototyping and code development around ARM Cortex-M based microcontrollers.
The VX-toolset for ARM is the first TASKING compiler suite to receive the Software Platform technology, which is seamlessly...Read more
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.