Breaking News
News & Analysis

25G Ethernet on Tap at IEEE

Vote reverses March decision
7/21/2014 07:35 PM EDT
5 comments
NO RATINGS
Page 1 / 2 Next >
More Related Links
View Comments: Newest First | Oldest First | Threaded View
krisi
User Rank
CEO
Re: Good move
krisi   7/24/2014 7:26:47 PM
NO RATINGS
thank you Janine, makes sense...I presume 25G links use FECso the real number is higher than 25G, right?

JanineLove
User Rank
Blogger
Re: Good move
JanineLove   7/24/2014 7:24:14 PM
NO RATINGS
That's exactly right @Krisi, 4x25

krisi
User Rank
CEO
Re: Good move
krisi   7/24/2014 7:18:22 PM
NO RATINGS
Not sure...why 25 Gb/s?...such a strange number...I haven't followed this for years but I would think 40 Gb/s was more natural...or is it 4x25=100?

docdivakar
User Rank
Manager
Re: 25G Ethernet on Tap at IEEE
docdivakar   7/22/2014 7:15:12 PM
NO RATINGS
It seems like many flavours of datacenter ethernet are settling down! Couple of years ago, there was 10Gbps x 4 and 10Gbps x 10 for 40Gig and 100Gig ethernet, some what influenced by the legacy InfiniBand camp. I am glad to see 25Gbps getting the approval of the majority.

We did have healthy discussions around 25/28gig SerDes couple of years ago after OIF / CEI standard for 25G class designs was approved:

http://www.eetimes.com/document.asp?doc_id=1278858

Here is another link to a presentation on signal integrity challenges for 100Gig ethernet that considers the 25/28Gig lanes as one of the options (focus mostly on the backplane).

http://comsocscv.org/showevent.php?id=1372192317

MP Divakar

JanineLove
User Rank
Blogger
Good move
JanineLove   7/22/2014 4:10:32 PM
NO RATINGS
There are certainly specific issues, complexities, and challenges of moving to 25G or higher, and I'm glad to see this decision by IEEE. For futher reading/info: Steve Tarnovich at EDN posted an article on 100GbE recently, and this is a major topic that we deal with at DesignCon.

Most Recent Comments
seaEE
 
Neo10
 
collin0
 
zeeglen
 
Francene
 
MeasurementBlues
 
zeeglen
 
MeasurementBlues
 
SteveP67
Top Comments of the Week
August Cartoon Caption Winner!
August Cartoon Caption Winner!
"All the King's horses and all the KIng's men gave up on Humpty, so they handed the problem off to Engineering."
5 comments
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Times on Twitter
EE Times Twitter Feed
Radio
LATEST ARCHIVED BROADCAST
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.
Flash Poll