Light Reading

IEEE Picks Up 25Gbit/s Ethernet Cause

Dan O'Shea
7/23/2014
50%
50%

Just days after a consortium was formed to pursue a 25Gbit/s specification for data centers, the IEEE has anointed its 802.3 25 Gbit/s Ethernet Study Group, the first step to establishing for formal standard.

Institute of Electrical and Electronics Engineers Inc. (IEEE) members voted last week to pursue the effort to explore uses and market interest in 25Gbit/s Ethernet for single-lane interconnections between servers and top-of-rack networking gear inside data centers. Mark Nowell, chairman of the study group and senior director at Cisco Systems Inc. (Nasdaq: CSCO), tells Light Reading an initial straw poll of voting engineers found 121 in favor and just one against the idea. The move to establish the study group was unanimously approved in a follow-up vote. (See IEEE Studies 25G Ethernet Standard.)

Only two weeks earlier, several companies came together to announce the 25 Gigabit Ethernet Consortium, which aimed to pursue a default standard in the absence of a formal IEEE standard, while also building enough broad industry support to get the IEEE to pursue a formal standard. A previous effort to start a 25Gbit/s standard process at an IEEE meeting in March did not advance, Nowell believes in part because that meeting was held in China and was not as heavily attended as the meeting this month in San Diego. (See Will 25G Effort Prove Valuable?, 25-GigE Consortium Devises Data Center Standard, and New 25-Gig Ethernet Spec Targets Data Center.)

The consortium effort and the IEEE study effort appear to be in alignment. Nowell says all of the founding members of the consortium backed the call for interest to form the study group. The consortium also has previously suggested it could feed its own spec, already completed, back into the standards process. Cisco notably was absent from the consortium's founding members, but Nowell says the network giant is in the process of joining the consortium.


Need to know more about network functions virtualization and the cloud? Check out the agenda for NFV and the Data Center, September 16 at the Santa Clara Marriott, Calif.


The IEEE standards process also can draw on details of the existing 100Gbit/s Ethernet standard, which include specifications for four lanes of 25 Gbit/s.

"Because we can use stuff hammered out in the 100G process, I would expect this effort to move quickly," Nowell says, adding that in previous standard efforts where existing specs could be leveraged, concepts have moved from study group to task-force development to standard in about 18 months.

For now, the study group is focused on examining the need for server interconnection at 25 Gbit/s using copper backplane interfaces, but Nowell says additional applications could evolve. "Once we have a MAC standard, it could proliferate into other areas of the data center where 10G is not enough and 40G is too much."

— Dan O'Shea, Managing Editor, Light Reading

(1)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View        ADD A COMMENT
DOShea
50%
50%
DOShea,
User Rank: Blogger
7/23/2014 | 6:07:22 PM
Two times the fun
The 25G consortium  also was developing a spec for two lanes of 25 Gbit/s for server interconnection, though the IEEE study group for now is looking at a single-lane solution.
Flash Poll
From The Founder
Last week I dropped in on "Hotlanta," Georgia to moderate Light Reading's inaugural DroneComm conference – a unique colloquium investigating the potential for drone communications to disrupt the world's telecom ecosystem. As you will see, it was a day of exploration and epiphany...
LRTV Documentaries
Lack of Universal SDN a Challenge

5|21|15   |   04:51   |   (3) comments


Heavy Reading Analyst Sterling Perrin talks about how uncertainty about SDN standards and approaches may be slowing deployment.
LRTV Custom TV
Steve Vogelsang Interview: Carrier SDN

5|20|15   |   05:02   |   (0) comments


Sterling Perrin speaks to Steve Vogelsang, Alcatel-Lucent CTO for IP Routing & Transport business, about the new Carrier SDN-enabling Network Services Platform and the operator challenges it solves.
LRTV Custom TV
Carrier SDN: On-Demand Networks for an On-Demand World

5|20|15   |   20:52   |   (0) comments


Steve Vogelsang, Alcatel-Lucent CTO for IP Routing & Transport business, talks about requirements and benefits of Carrier SDN during the keynote address at the Light Reading Carrier SDN event May 2015.
LRTV Documentaries
The Security Challenge of SDN

5|19|15   |   02:52   |   (0) comments


CenturyLink VP James Feger discusses concerns that virtualization could create new vulnerabilities unless network operators build in safeguards.
LRTV Custom TV
NFV Elasticity – Highly Available VNF Scale-Out Architectures for the Mobile Edge

5|18|15   |   5:50   |   (0) comments


Peter Marek and Paul Stevens from Advantech Networks and Communications Group talk about their NFV Elasticity initiative and the company's latest platforms for deploying virtual network functions at the edge of the network. Packetarium XL and the new Versatile Server Module: 'designed to reach parts of the network that other servers cannot reach.'
LRTV Huawei Video Resource Center
Bay Area Spark Meetup 2015

5|14|15   |   3:54   |   (0) comments


Developed in 2009, Apache Spark is a powerful open source processing engine built around speed, ease of use and sophisticated analytics. This spring, Huawei hosted a meetup for Spark developers and data scientists in Santa Clara, California. Light Reading spoke with organizers and attendees about Huawei's code contributions and long-term commitment to Spark.
LRTV Custom TV
The Transport SDN Buzz

5|12|15   |   06:01   |   (1) comment


Sterling Perrin, senior analyst at Heavy Reading, speaks with Peter Ashwood-Smith of Huawei and Guru Parulkar of ON.Lab about the evolution of transport SDN and the integration of technologies.
LRTV Custom TV
Next-Generation CCAP: Cisco cBR-8 Evolved CCAP

5|5|15   |   04:49   |   (0) comments


John Chapman, Cisco's CTO of Cable Access Business Unit and Cisco Fellow, explained the innovation design of Cisco's cBR-8, the industry's first Evolved CCAP, including DOCSIS 3.1 design from ground-up, distributed CCAP with Remote PHY and path to virtualization. Cisco's cBR-8 Evolved CCAP is the platform that will last through the transitions.
LRTV Custom TV
Meeting the Demands of Bandwidth & Service Group Growth

5|1|15   |   5:35   |   (0) comments


Jorge Salinger, Comcast's Vice President of Access Architecture, explains how DOCSIS 3.1 and multi-service CCAP can meet the demands of the bandwidth and service group growth.
LRTV Custom TV
DOCSIS 3.1: Transforming Cable From Hardware-Defined Network to Software-Defined Network

4|29|15   |   03:48   |   (0) comments


John Chapman, Cisco's CTO of Cable Access Business Unit and Cisco Fellow, explains how DOCSIS 3.1 can transform cable HFC network to a more agile software-defined network.
LRTV Huawei Video Resource Center
Predicting Traffic Patterns for Quality Mobile Broadband

4|29|15   |   6:45   |   (0) comments


Accessing information ubiquitously creates complexity and creates heavy traffic onto the network, especially at large-scale events like sporting events or festivals. In this video, Huawei's Mohammad Hussain speaks to experts about how to predict traffic and improve user experience during periods of heavy traffic.
Between the CEOs
Ciena CEO: The Web-Scale Revolution

4|28|15   |   10:32   |   (3) comments


Light Reading CEO and founder Steve Saunders goes head-to-head with long-time Ciena CEO Gary Smith to discuss the impact of the web-scale players, the New IP and 'white box' networks.
Upcoming Live Events
June 8, 2015, Chicago, IL
June 9, 2015, Chicago, IL
June 9-10, 2015, Chicago, IL
June 10, 2015, Chicago, IL
September 29-30, 2015, The Westin Grand Müchen, Munich, Germany
October 6, 2015, Westin Peachtree Plaza, Atlanta, GA
November 11-12, 2015, The Westin Peachtree Plaza, Atlanta, GA
All Upcoming Live Events
Infographics
Network functions virtualization (NFV) is not the easiest of topics to take on board, so here's a Light Reading infographic, developed following conversations with the folks at HP, that helps make sense of where NFV is taking the industry.
Hot Topics
AT&T Testing Virtualized GPON
Carol Wilson, Editor-at-large, 5/15/2015
Choosing a Technology Supplier? Consider Changing Your Selection Criteria
Steve Saunders, CEO and founder, Light Reading, 5/18/2015
Verizon Saves 60% Swapping Copper for Fiber
Sarah Thomas, Editorial Operations Director, 5/19/2015
Chattanooga Charts Killer Gigabit Apps
Mari Silbey, Senior Editor, Cable/Video, 5/20/2015
AT&T Takes 'Startup Mentality' to Wholesale
Sarah Thomas, Editorial Operations Director, 5/15/2015
Like Us on Facebook
Twitter Feed
Webinar Archive
BETWEEN THE CEOs - Executive Interviews
With 200 customers in 60 countries, Stockholm-based Net Insight has carved out a solid leadership position in one of the hottest vertical markets going in comms right now: helping service providers and broadcasters deliver video and other multimedia traffic over IP networks. How has Net Insight managed to achieve this success in the face of immense competition from the industry giants?
My ongoing interview tour of the leading minds of the telecom industry recently took me to Richardson, Texas, where I met with Rod Naphan, CTO and SVP, Solutions, ...
I recently popped down to Texas to chat with CEO Eric L. Pratt about his company, Taqua.
Cats with Phones