walrus01

> Right now you can buy a whitebox 'switch' with 40gbps interfaces and load various operating systems that enable different management styles (e.g. OpenFlow control like Google http:…

an alternative to spanning-tree? don't use it and don't try to extend layer 2 switch fabrics beyond a reasonable distance. things at unique geographical locations should not be able to ARP …

I was not expecting to see a photo of a 12 year old kid holding a Juniper T640 FPC with PICs in it. How often do you let a 12 year old hold something worth possibly $50,000?

and the disclaimer about how the only semi-viable battery swap company went bankrupt and shut down: http://cleantechnica.com/2013/05/27/no-better-place-battery-... …

"and we did not want to be in a position that we had exhausted the option to get people's potential life work back in the future if they came today and said, 'I'm encrypted, I can&…

Car applications care about kilograms per kWh stored, and cubic volume per kWh stored. Stationary batteries, not so much.

it's this guy: https://www.youtube.com/user/jehugarcia/videos scroll down a bit into the older videos and you will see the VW.…

What the hotel used was not a RF-shitting noise source/jammer of any sort, it was other properly certified/permitted Part 15 legal 802.11 wifi equipment equipped with "rogue access poin…

Absolutely. It's all about the $/kWh stored. A "worn out" electric car battery might have only 70% of its cycle depth/capacity remaining compared to when it was new, but if th…

The thing is, the grid from the perspective of an average residential user is actually not that reliable. In many places in the Pacific Northwest where trees fall on power lines in winter storms the g…

Not so much batteries, but "energy storage" in general. Batteries being one very important type of energy storage. If photovoltaics and/or wind become extremely cheap, to the point wher…

> Worldwide production of lithium-ion batteries in 2013 was around 35GWh I don't think measuring it in terms of GWh is the best way to go about it, because a huge number of lithium ion batteri…

Energy STORAGE is a huge bottleneck issue for anyone that follows renewable energy news as well... Solar power itself has been cheap enough to be viable for a long time, 330W 72-cell panels for roofs…

fun fact: most consumer grade GPS stuff can pick up GLONASS, particularly the RF baseband chips found in all modern smartphones, because about 5 years ago Russia threatened to put a 250% import duty o…

yes, what I meant is it's only legal to operate an actual GPS jammer (a transmitter that shits noise on the 1.4 to 1.6 GHz band spectrum) inside a faraday cage, and test how your equipment respon…

> But if you want to use the spectrum to stop others from communicating—stop being a jerk. (You may, of course, substitute stronger words for "jerk"). I think a big part of it is the corp…

It's more of a grey area than that, FCC Part 15 devices must accept all forms of interference. There is no real recourse. Provided that the device is transmitting within 2.4 or 5.8 GHz band chann…

If you have a very good faraday cage / RF test chamber (such as a third party certification lab that does paperwork for FCC compliance has) you can test GPS jammers and their resultant effects on…

If you think that's amazing, check this out: https://www.canlii.org/en/ab/abqb/doc/2012/2012abqb571/2012a... …

Thing is, it's not an 'order of magnitude' different in price... Three $2500 CCRs vs, what? I know somebody who recently bought a whole Juniper MX960 for around $10,000. For a serious…

How has this asshat not been declared a 'vexatious litigant' by some court? There's a legal process to deal with people who file an exceptionally larger volume of repeated bullshit laws…

"Their most recent model has 8x10Gb ports, costs USD $2,500 and will route the full 80gb/s" No, it won't route 80Gbps, because any single flow on a CCR uses a single core on their …

Iridium Next has a lot more revenue potential for them as well, with all sorts of new products that can be developed with embedded Iridium modems (same general way they sell the 9602 transceiver to ma…

Even so, they were up to about a billion dollars in debt for satellites, engineering services and launch services by the time the original Iridium corporation went bankrupt around 2001... I'm no…

email marketing douchenozzles

how about: The persuasive power of running all my incoming smtp traffic through 4 different RBLs, postfix milters for openDKIM and openDMARC, SPF tagging the header before pipelining it into spamassas…

https://s3.amazonaws.com/theoatmeal-img/comics/email/4.png …

You set it up with your own IMAP(TLS) and smtpd for email, and in your server logs the logins were coming from Samsung IPs, not the wifi or cellular network your phone was connected to? Where were the…