At 8:56 PM +0000 3/7/03, John Neiberger wrote: >Here's a quote from something I just saw in the news: > >"Scientists at the Stanford Linear Accelerator Center used fiber-optic >cables to transfer 6.7 gigabytes of data -- the equivalent of two DVD >movies -- across 6,800 miles in less than a minute. > >Pushing the tech envelope >The team was able to transfer uncompressed data at 923 megabits per >second for 58 seconds from Sunnyvale, California, to Amsterdam, >Netherlands. That's about 3,500 times faster than a typical Internet >broadband connection. " > >Okay, 923 Mbps is a speed record? An OC-48 is roughly 2.6 times faster >and they're fairly common. What's the big deal about 923 Mbps? I >realize that I must be missing something very obvious here but I don't >understand the milestone they're claiming to have passed. > >Admittedly, I'm about to fall asleep in my chair but that's par for the >course with me. :-) > >So, what's the big deal? In a world of OC-192 and up, why is earth shattering? >
I'm baffled by it as well. I suppose it might be a fair accomplishment for a host to sink that much traffic, but the network part is straightforward -- it's just OC-192, and any number of routers can handle multiple OC-192. OC-768 has been demonstrated, and DWDM of many OC-192s isn't a big deal -- the big deal is how many lambdas you can get on a fiber. I've seen lab experiments with hundreds. The optical physics people tell me that you're starting to approach fundamental chip technologies much over OC-768, although I have talked to people that think they can double it to 80 Gbps. Lots of parallel OC-192s, however, may be just as useful. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=64783&t=64767 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
