Recent comments by JP

Big smile

The backstory of that: IETF standard meetings (edit: Probably all standards meetings) are a combination of political and boring unlike anything I've ever seen. It's also why the teapot standard exists, just to break the boredom.

Never again.

edit: error 418
List of HTTP status codes - Wikipedia, the free encyclopedia

RE wrote:

In the early 2000s I setup Walmart's first VoIP implementation using Cisco CallManager.

The company I cofounded was a supplier to Cisco around that time. (They use our product in the HFR, officially called the CRS-1.) What impressed me was that when we would visit, all of their offices were using their own IP phones. I felt like I was being given a view into the future. And now, an Cisco IP phone sits on my desk (and connects to 8x8.)

I can't say the same about their video conferencing stuff though. I'm not sure what the future there is.

picosec wrote:

My last job before retiring was to distribute timing around a facility about the size of a football stadium. Required jitter and stability less than 30 picosec (thus my handle). Used OC-12 hardware (as that was nearly 20 years ago) and fiber for distribution.


When I was still in Bell Labs, one of the folks opened my eyes to the synchronization problem across the telephone network. When setting up a telephone call from NY to LA, the SONET circuits needed to be synchronized, across all framers and switching stations in between. Since GPS was now up in the air, the CO's would receive a timing signal from the satellite system, and then lock a PLL to that signal to get the needed SONET frame timing of 125 micro-seconds.

I'm just a high-speed circuits guy. PLL's and jitter reduction etc was just magic. Still is.

PS. G.711 digitally imitates the old mu-law analog circuits that were used in the days of Ma Bell. These were companding, which sound engineers would know as compression, in order to increase the dynamic range: Both whispering and shouting on the phone were still intelligible on the other end. It might have been the right engineering decision, but not necessarily the right social decision: many relationships would have been saved had they made the shouting unintelligible.

RE wrote:

Outsider wrote:
When it leaves the house, doesn't it travel via the telephone poles?
Your line obtains dial-tone from a wire center. From the wire center the call travels via IP.
edit: Quality depends on the CODEC used.

This depends on how modern the CO is. In Outsider's New Hampshire, which might be back a decade or three, it might still be operating via (what used to be called) circuits, which were aggregated and framed and sent via whatever trunk to the next town. In the bad old days, these were the origins of T1-T3 lines. (Didn't I just have this conversation with justaskin?)

At low speeds and in old systems, it was the difference between circuit switching and packet switching. The former is SONET, the latter is IP. For SONET, a 64 kb circuit would be set up to carry the call (redundantly!) to the destination. The redundancy meant that the line would switch on a dropout from primary to secondary in 50ms.

In the modern world, IP is no longer really packet switched, ie all of the CSMA/CD contention has gone away because there is a defined sender and a defined receiver on one line. So especially at OC-48 speeds and above (2.5Gbps), the SONET and IP worlds have merged. The transceivers sit in front of something called a framer; It's not always called a SONET framer, but it is performing much of the same management functions and error correction on the line.

[I could talk about this stuff all day. In fact, I used to about 15 years ago. It took a decade to recover.]


The blog used Centers for Disease Control and Prevention data to look at 1) the likelihood of a family food-poisoning episode, 2) likelihood of relatives getting drunk and making a scene and 3) dietary restrictions impacting meal quality.

Teh Glutenz!

I was born, and then twelve days later they shot Kennedy. Coincidence? Tinfoil Hat

noblejoanie wrote:

That said, I enjoy the mix of opinions and personalities over here even though I'm not "of the body"!

You are now. Welcome, pull up a rocking chair. And a weapon of choice.

skk wrote:

cursOr. puleeze.

You've made an assumption that he's talking about the cursor on his computer.

He might well have hired an illegal immigrant to stand in front of his computer and shout curses, and designated this person the curser. And it is only when he moves the curser that he sees the download from his links.

dilbert dogbert wrote:

Lately I have noticed that links don't download until I move my curser a bit.

Sounds like your curser is cursed.

But really, that sounds crazy. Usually a click is a click.

justaskin wrote:

100 Gigabit Ethernet trumps OC-768 by 2012, firm says | Network World

Funny thing: 100 GigE is actually 4x 25G. Not a lot of people could get OC-768 to work. In the wake of the Nasdaq melt-down in 2001, a lot of people left the field (because it was just not worth it to work that hard for the same salary you could get by doing dumbass software from home.)

And now the finance guy makes a ton of money consulting for "How to spot fraud".

Let that be a lesson to us all.


MarketWatch: How much do you get paid for giving speeches?

Antar: My fees range from as little as zero to as much as $5,000. It all depends on the circumstances.

Sam Antar: The CFO behind the Crazy Eddie’s fraud - MarketWatch

Outsider wrote:

Google: You can pay as little as $1 to see fewer ads - Nov. 21, 2014

New Keyboard You can install AdBlockPlus for free and see no ads.

Outsider wrote:

Burger mania hits Wall Street - Nov. 21, 2014

Pretty sure they meant Burgher.

justaskin wrote:

so, you didn't say what you were getting 150
mbps over.....

Sorry: FIOS. I'm in a premium area even for those guys tho. It turns out that there's a fiber running to some major businesses in downtown SM, and Verizon allows some of the home service to tap into that.

curious.....what's the theoretical limit for a given pipe....vs the backend capability

It's a long and complicated discussion. The pipe depends on the geometry of the transmission medium, and the noise it allows in.

Old-fashioned unshielded twisted pair (like what used to go to your telephone in the 60s) craps out around 2 Mbps when you're about a mile from the central office, iirc. This is why most DSL topped out around 1.5M. Those lines were terminated into something called a DSLAM.

The E&M mode on old-fashioned coax used for TV cable distribution starts having trouble around 10 MHz, and the signal-to-noise allows multiple 10s of Mbps when optimized. Practical home distribution tops out around 15 Mbps.

Modern systems use either better quality coax, ethernet cable (= multiple shielded twisted pairs) or optical fiber. I have worked on fiber systems where each wavelength is 40 Gbps, which tells you that there's all sorts of upside left technically (and that distribution is more of an economics problem.)

In terms of the T1 you mentioned, you aggregate a bunch of those to about 50 Mbps to get a T3, which is then put on an optical line OC-1. The 40 Gbps line is then OC-768.

"Could" is a funny word to put in a prediction like that. I mean, it "could" reach 100 Million as well.

MW headlines are a wonderful source of prediction weasel words

justaskin wrote:

serious question.....what's minimum acceptable for video?

Depends on which video. Probably ok for youtubing, less so for Netflix/amazon prime etc.
Commercial HD broadcasts over-the-air are approx 15 Mbps. The cable guys code that down further; Numbers are proprietary but 10 Mbps is not a bad guess.

Myself, I'd consider 2 Mbps unacceptable to watch, but I'm a snob. Hat


Commercial (T1 or whatever today's hot stuff is)?

T1 is 1.544 Mbps, and goes back to the old phone system and how voice signals were aggregated on the trunk lines. It's an interesting history, if you're into that sort of thing.

justaskin wrote:

how bad do you suppose 2 Mbps is?

Stone age. We're around 150 Mbps here.

lawyerliz wrote:

Neither a borrower or a lender be. . . Or, something.


New York Fed chief on defensive on bank oversight - Yahoo Finance

"Change has to come from the top," Warren said. "Either you need to fix it Mr. Dudley, or we need to get someone who will."

poicv2.0 wrote:

I've heard of eating donuts while walking

Fine, do I have to educate everyone around here? :sheesh:

poicv2.0 wrote:

How do you do donuts while walking?

You've never seen Angus Young of ACDC do that?

And the drop in gas prices means that corps have even less reason to give higher raises, or give new hires bigger starting salaries.

What is missing from this labor lullaby is some sign of normal wage growth.

Eeexelent! : "I wouldn't say that we're exactly missing it, Smithers."

I can't believe you guys haven't spent a night in one of the Niagara hotel rooms with heart-shaped beds. Or the excellent Wax Museum. You would think so much more highly of the town I'm sure.

sm_landlord wrote:

it sounded more like people who live there.

Shy I'll tone it down next time, promise.

Along those lines: One of the hidden museum gems in DC is The Spy Museum. Not a smithsonian, so it doesn't get a lot of attention, but has many gems.

Whiskey wrote:

I don't have to do any of that nonsense. My work environment is an oasis of sanity in a corporate desert.

I can authoritatively say: My current boss is the biggest asshole that I've ever worked for.

Firemane wrote:

"The least moral company wins."

I also note: The mafia has the world record for an unbroken string of profitable quarters.

Speaking of which, happy black friday rush, bitchez!

Off to the bitmines.

Compete or die, bitchez!

Firemane wrote:

Today, the evidence suggests the non-a**hole employer is an endangered species.

They got competed away.

"It's not personal. It's just bizness."

Firemane wrote:

Employers never care what their employees are spending.

One example: HR in big companies will have cost-of-living calculators to equilibrate salaries across regions. There are many inputs to those calculators.

Cinco-X wrote:

She meant downwardly mobile...

Whoops, that makes more sense.

Guys that are not looking for every way to cut costs won't have the lowest price, which means they will lose biz to the competition that does lower price cuz they're reducing payroll.

Walmart is the obvious retail example, but there's large numbers of other examples. Media and tech come to mind.

Outsider wrote:

Said it before, but voting with one's feet makes for a very mobile society.

Vote with one's feet to work for someone who's too stupid to recognize that workers are now paying less, so there's room to reduce the payroll? Yeah, those guys will last long in the competitive marketplace.

lawyerliz wrote:

Good deflation.

Really? As an employer, am I more or less likely to give a big raise now that I know my peons are spending less at the pump?

And those offers to new hires: Should I offer the same as the last guy, or should I drop it a bit since I know his/her cost-of-living just went down 31% annualized in one of the big parts of the home budget?

Motor fuel declined at a 31% annualized rate in October!
Read more at Calculated Risk

Deflation! Dont Panic!

Rob Dawg wrote:

Expect a spike in transactions as soon as it looks like rates are going to rise.

Rates rise?! New Keyboard

poicv2.0 wrote:

it was idealoguish

So all of my votes were wrong too?! My Head Just Exploded

I can't believe RiF has been caught quipping. I have an enormous allocation of my portfolio based on his posts, all of which I thought were serious! Rant

Nemo wrote:

Mish's Global Economic Trend Analysis: Added To My Basket of Miners Yesterday; "I Am My Own Central Banker"


Marc Faber: Look. The forecasting record of people is horrible,

New Keyboard

I don't know how you guys in San Hose live with all that crappy weather. Cool

One post in 6 months CR? And that's it?! Smile

However, looking forward, the demographics will become more favorable for home ownership.

Which means, looking forward, the economics will become even more favorable for multi-generational households.

I think politics has no place on this board, and the topic quickly degenerates into lizard-brain discussions, but when a gov't does something as outrageous as this, even the apolitical must step up and be outraged:

Pub shares sink after lawmakers vote to cut ages-old ‘beer tie’ - MarketWatch

ResistanceIsFeudal wrote:

or has all that useless theory crap gone by the wayside?

I'd be curious. Having no rugrats of my own, it would be interesting to know what passes for early math education.

I was a little shocked in my first job in undergrad: In the lab, nobody used a calculator: It was faster to just do the math in your head. I couldn't believe that working a register gave me useful skills for employment. Smile


KidPsych wrote:

Same as it ever was, RIF. When I worked at a department store called The Broadway back in the 80's (f*ck I'm old), the registers went down and I had to help other clerks understand how to take 10% off for the sale that day. Customers, too.

The opening of the movie 21 has an MIT guy in a clothing store (which is supposed to be J. Press) adding the bill for the customer, which is the film's way of saying that the guy has arithmetic mad skillz.

The funny part: Anyone who worked the register at one of the sandwich places (Pritchett) during the 80s did exactly the same thing, just not as many digits as in the movie. (movie was 5, pritchett was 3) It was faster than punching keys on the register.

The film wasn't bad btw: 21 (2008) - IMDb

sm_landlord wrote:

Notice what was missing?
An 18" 12 gauge for close defense.

The pic I linked above wasn't the whole stash.