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Comment: Re:How can you have a software defined network? (Score 0) 75

by Alex Belits (#43779711) Attached to: A Peek At Google's Software-Defined Network

he article was written by the guy that did the driver, I think we can assume he knows his stuff.

Most of the driver is just a copy of Intel driver, with additional functionality bolted on top. Whatever the author's abilities are, the goal was not to produce a working protocol stack, and benchmarks of this hack can't be used to predict anything but the behavior of this hack.

No it appears that if you want to switch more than 10-18 Gbit/s the computer would have a memory bandwidth problem. Trying to use multiple cores and NUMA might improve on that, but I do not think you would manage to build a 24 port switch that switches at line speed this way :-).

But if you could somehow get an external switch to do 99% of the work, this might work...

And then they would inevitably slow down this hack, too, what makes me doubt the validity of the measurements.

I am not sure how much more we can get out of this discussion. From my side I believe you are going too far in trying to make a problem out of something that actually works quite well for some very large companies (Google and HP!).

Those companies merely announced that they intend to use this "technology" somewhere. They are not throwing out the routers they have. They likely replace some level 2 and level 3 switches ("almost routers") and treat the whole thing as a fancier management protocol for simple mostly flat or statically configured networks that they have in abundance. For all we know, Google may already have no routers at all except for links between their data centers, as they are famous for customizing their hardware/network infrastructure for their own unique software infrastructure, and would probably gain more from multi-port servers connected by very primitive switches into clusters with VLAN or even physical topology following the topology of their applications' interfaces.

Packets need to be delayed when the controller needs to be queried and that is true for both OpenFlow and traditional switches.

Except traditional switches never have high-latency, unreliable links between their components, and the data formats follow the optimized design of ASICs and not someone's half-baked academic paper.

We are just fighting over some nano or possible microseconds here with no one showing that it actually matters.

Then why don't people just place Ethernet between a CPU and RAM? It's "nano or possibly microseconds", right?

Google uses for, or they wouldn't be doing it.

See above.

At my company we are using it too and it works very well for us. We are an ISP by the way.

If it works, then the way you use it, did not require anything complex to begin with, and you use it as yet another management protocol. You could have bought cheap level 3 switches before, and configure them to do exactly the same thing with command line, except with less buzzwords.

Comment: Re:price tag is irrelavant (Score 0) 131

Ownership is a lot more than the right to deny use (and not always the right to deny use), and the "extensions of our body" argument is also flawed. The basis of "ownership" is our territorial instinct. If you move into my land (or speak to my woman), I will knock you in the head with my club. If I didn't do that, I would starve and have no offspring, so all people today descend from more or less territorial forefathers.

At no point in history, starting before apes that humans eventually evolved from, this was the case -- they were all social animals and controlled territory, food, etc. only as a group with complex hierarchy within the group that had absolutely nothing to do with ownership. Those loners in caves never existed, and could not possibly exist because humans never had physical traits necessary for surviving and defending an individual without a group. A hunter living alone in the woods, as much "close to nature" it seems, is something much more recent, brought by the development of technology. Personal property is also a recent cultural development, and even now it usually acts as a proxy for social status and power.

Comment: Re:Don't copy that floppy! (Score 0) 131

INB4 wikipedia is full of propaganda. Then correct them. Controversial articles are easy to spot.

If it's 19th to 21th century, it's someone regurgitating modern propaganda.

Dig deeper, make your own mind.

You can't "dig deeper" when all you have is a collection of propaganda workers and their parrots, all trying to out-shout each other while trying to keep the impression of legitimacy.

Comment: Re:Prosiner's dilemma (Score 1) 243

by sjames (#43779565) Attached to: Uptick In Whooping Cough Linked To Subpar Vaccines

Naturally, it varies by the vaccine, but bad reaction can range from a minor fever that might or might not be noticed on up to perminent disability and death at the extreme end. The latter are uncommon but do happen.

I'm not talking about the scare mongering about autism and such. That has been debunked more than satisfactorially.

The correct calculation of the risk is to compare against the morbidity and mortality caused by the disease itself.

Comment: Re:DESPERATE TIMES CALL FOR DESPERATE MEASURES !! (Score 2) 49

by shaitand (#43779065) Attached to: EFF Resumes Accepting Bitcoin Donations After Two Year Hiatus
Real estate is no more tangible than fiat. You don't actually "own" land in the event of government instability. Nor mineral rights, nor water rights, nor any other form of "ownership" that exists only by support of the government agreeing you own it. A tulip bulb on the other hand. That is yours at least as long as you can keep someone from taking it away.

Precious metals, guns, bullets, alcohol, gasoline, non-perishable food. Those are tangible assets. Anything secured by a court filed document you might as well have just left as fiat.

One good reason why computers can do more work than people is that they never have to stop and answer the phone.

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