Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Comment Re:So then they get another warrant ... (Score 1) 504

You mean, like CALEA, a law which was written to cover POTS phone calls, but later expanded by non-elected bureaucrats (via regulatory "law") to include VoIP and Internet traffic?

What makes Apple not a telecommunications carrier subject to CALEA, with their Facetime, email and other such offerings?

Comment Re:Parallax. (Score 1) 425

While it's apparent that he doesn't understand the difference between a zoom and prime lens, there are some pretty wide range zooms these days. Mostly on point-and-shoots. The newly announced Canon PowerShot SX60 HS has a 65x (21 â" 1365 mm equivalent) zoom. Yes, that's the optical zoom. I can't imagine how bad the chroma or distortion is at the extremes.

Comment Re:Parallax. (Score 1) 425

"Smaller things further away are easier to hide than close-up."

Not if the resulting images are adjusted so the pictured object is the same size. Unless you're reducing a detail to the single pixel range, that is. Additionally, the phone's lens would be more out of focus (when focused on the edge of the phone) when taken from a closer position - depth of field can be used to de-accentuate a feature. Finally, parallax would make the phone's camera appear smaller in proportion when photographed from a closer position.

You seem to be doing everything exactly, and perfectly, wrong. Are you trying to troll, or simply don't know what you're doing?

Comment Re:Parallax. (Score 2) 425

Straightedge across phone's camera and edge. Another across the front of the phone. The two straightedges will form a wedge - a lens inside that wedge will see only the side of the phone (no camera, no front). It's not clear why you were playing around with taking pictures from across the room, I doubt the wedge extends nearly that far.

Comment So, he's a crappy programmer... (Score 2) 165

and couldn't program it to prioritize based on which one was seen first, was closest, was apt to fall first based on speed/distance, or any one of many other possibilities. You could even place weights on them, and throw a die at the end as a tiebreaker. The rule should be interpreted as "allow the least harm," not "allow no harm."

Comment Re:You mean... (Score 3, Informative) 243

"For IPv4, QoS simply means reordering packets"

Uh, no. Do some reading on diffserv. There are mechanisms to accommodate a range of bandwidth (assurance) and latency (expediency) needs. QoS is much more than simply reordering packets, and includes things like classification, marking, queue management (strict vs. RED/WRED vs. WFQ), policing, shaping, trust relationships, etc.

Comment Re:You mean... (Score 1) 243

"If you have a 12mbit connection vs a 20mbit connection how is it you think the traffic magically figures that out so it can send you traffic at the correct rate for your link?"

For most ISPs, that would be traffic policing, although some may use traffic shaping. Look it up, you'll learn something new.

You clearly don't understand the difference between QoS and congestion control, or between TCP and UDP, or that some protocols cannot degrade gracefully. Congestion control in no way replaces proper QoS.

Comment Re:You mean... (Score 1) 243

"Simple they manage the outbound rate at which they send ACKs and let TCP on the rremote host figure out the rate limiting."

That's congestion control, not QoS. Many of the protocols where QoS is most desirable run over UDP, not TCP.

Your whole "defaults to EF, demote to EF" thing is confused. I think you mean DSCPs DF, EF and AF13, where EF is the extra-cost premium service.

Slashdot Top Deals

"God is a comedian playing to an audience too afraid to laugh." - Voltaire

Working...