Breaking News
News & Analysis

Bechtolsheim brainstorms on next networking wave

Too many choices
10/17/2012 01:46 PM EDT
6 comments
NO RATINGS
< Previous Page 2 / 6 Next >
View Comments: Newest First | Oldest First | Threaded View
Philip Papadopoulos
User Rank
Rookie
re: Bechtolsheim brainstorms on next networking wave
Philip Papadopoulos   10/26/2012 9:43:05 PM
NO RATINGS
There is a fundamental utility limit of the network entering/exiting a server -- that's memory bandwidth. 400Gb/s is 50GB/sec, which is on par with achievable total memory bandwidth of common servers. When your network becomes faster than memory speed, you have to wonder about practical utility of that extra unusable capacity. I would argue that the practical limit is closer to single memory channel speed, not aggregate system memory bandwidth. Today, a 2100MHz DDR3 Channel is 17GB/sec ~ 136Gbps.

Philip Papadopoulos
User Rank
Rookie
re: Bechtolsheim brainstorms on next networking wave
Philip Papadopoulos   10/26/2012 9:36:33 PM
NO RATINGS
1) Andy's talking about the server space. I think he's bang on. The adoption curves look to be very similar to past networking tech uptakes. 2) He's not talking about the desktop space and/or wireless space. GigE is now pressed down on el-cheapo DIY motherboards, but you don't really need greater than 1GbE in your house for the next 1/2 decade) Hence, you cannot necessarily make the same volume argument for bringing down the price of 10GbE at the same rate. That means that the absolute price of 10G won't drop as quickly as it did for 1G, but it will get there. Of that, I have no doubt. Afterall, as people rely on network (buzzword cloud) services, the number of servers continues to rise. And Ideally you keep constant BW/core as you deploy big systems. As core count rises, so do your network bandwidth needs.

rick merritt
User Rank
Author
re: Bechtolsheim brainstorms on next networking wave
rick merritt   10/22/2012 8:39:30 PM
NO RATINGS
Two great and opposing views here. I'd love to hear some more thoughtful opinions on whether Andy has the future of networking right and why or why not.

krh
User Rank
Rookie
re: Bechtolsheim brainstorms on next networking wave
krh   10/20/2012 4:33:41 AM
NO RATINGS
$$ per bit...Andy has it right for the next 5 years...

elPresidente
User Rank
Freelancer
re: Bechtolsheim brainstorms on next networking wave
elPresidente   10/19/2012 8:40:11 PM
NO RATINGS
That "100,000 chips or it ain't worth it" has been the mantra for decades - nothing new. 100Gb/s FPGAs have been around for a couple of years now. Again, nothing new. No mention of 160Gb/s, or 400Gb/s, which are upcoming. Sounds to me like he's trying to solve procurement channel problems in his investment portfolio, vs being a visionary driver of industry.

rick merritt
User Rank
Author
re: Bechtolsheim brainstorms on next networking wave
rick merritt   10/18/2012 6:39:01 PM
NO RATINGS
Does Andy have it right? wrong? What do you think?

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
Top Comments of the Week
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
Flash Poll
Radio
NEXT UPCOMING BROADCAST
How to Cope with a Burpy Comet
October 17, 2pm EDT Friday
EE Times Editorial Director Karen Field interviews Andrea Accomazzo, Flight Director for the Rosetta Spacecraft.