Breaking News
Comments
Newest First | Oldest First | Threaded View
a.sun
User Rank
Rookie
re: 10GBase-T gains traction, but still too power hungry
a.sun   6/23/2013 7:22:31 PM
NO RATINGS
2-3W/port may be not an issue for server blades as not many of them are used. But it could be a big issue for ToR switch which may have up to 60 of them in 1U. I guess you have to use the same type of connectors on both ends of a cable especially in the case of an electrical or an optical cable. Considering a 10Gbase-SR consumes much less power than a 10Gbase-T.

docdivakar
User Rank
Manager
re: 10GBase-T gains traction, but still too power hungry
docdivakar   6/21/2013 5:47:15 PM
NO RATINGS
I agree that with 2-3W/port power consumption as not a big deal (the first generation PHY's were in the 10W/port range). In comparison the FCoE ports are in the 1-1.5W/port range and also have advantages of supporting two different fabrics. The power consumption in the 5W/port range is a concern for server blades but even those can be adequately designed for thermal margins. MP Divakar

markhahn0
User Rank
Rookie
re: 10GBase-T gains traction, but still too power hungry
markhahn0   6/21/2013 4:32:57 AM
NO RATINGS
that last comment about PHY power needs some justification. why would 2-3W/port be considered a big deal? we're talking about a couple ports per server, so that's about 1% of the power budget. price (incl switching) is the big problem. especially since for HPC, neither latency nor bandwidth are competitive with IB.

docdivakar
User Rank
Manager
re: 10GBase-T gains traction, but still too power hungry
docdivakar   6/20/2013 7:55:26 PM
NO RATINGS
The ASPs have to go further south of $200 per 10GBase-T ports for the base-T market to proliferate. The power issue has been a well-known concern for years now, I hope the smaller node and less power hungry designs can alleviate it. What the article did not mention is the fact that many data centers are already wired for 10G base-T BUT have not yet fully utilized the fabric. It would be nice to know what percentage of 10G base-T fabric is still using the 1G appliances. MP Divakar



Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Rishabh N. Mahajani, High School Senior and Future Engineer

Future Engineers: Don’t 'Trip Up' on Your College Road Trip
Rishabh N. Mahajani, High School Senior and Future Engineer
2 comments
A future engineer shares his impressions of a recent tour of top schools and offers advice on making the most of the time-honored tradition of the college road trip.

Max Maxfield

Juggling a Cornucopia of Projects
Max Maxfield
7 comments
I feel like I'm juggling a lot of hobby projects at the moment. The problem is that I can't juggle. Actually, that's not strictly true -- I can juggle ten fine china dinner plates, but ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
37 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Karen Field

July Cartoon Caption Contest: Let's Talk Some Trash
Karen Field
139 comments
Steve Jobs allegedly got his start by dumpster diving with the Computer Club at Homestead High in the early 1970s.

Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)