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Comment: Re:Insurance rates (Score 1) 239

Why would any bank finance a car loan without insurance? That would be monumentally stupid.

The bank can just insure the car themselves and add the cost to the interest rate they charge. However, most banks are likely large enough that self-insurance is the best option for them.

Comment: Re:3dTV is a flop? (Score 1) 197

by amorsen (#47689265) Attached to: Is Dolby Atmos a Flop For Home Theater Like 3DTV Was?

3D TV requires you to disassociate your depth perception and your eye focus. 3D needs to stay properly sharp despite your eyes changing focus (and ideally blur the things which are out-of-focus, but that is less important). The technology to do so is almost here now.

Alternatively, most children today probably watch enough 3D that their vision adapts.

Comment: Re:How much did move to cable/DSL cost Cisco? (Score 1) 207

Procurve is getting killed by software development. They are behind their competitors, and getting left further behind each day.

If you can make do with the limited software features (and you avoid the rebranded 3com stuff) they are great switches.

Comment: Re:They deserve it (Score 1) 286

1080i is a disaster for sports. Then again, so are all the other things cable companies do to ruin the signal.

At least there is finally hope: 4k has no interlacing, and with 8x8 *PEG blocks you still get the equivalent of 512x270 uncompressed pixels, no matter how crappy the encoding is. That is nearly NTSC resolution...

Comment: Re:Design Issue (Score 1) 60

by amorsen (#47581015) Attached to: Multipath TCP Introduces Security Blind Spot

First off, it seems unlikely as the phone will either be a corporate device, including BYOD, or a personal device. In the first case the traffic will have to flow across the network (including the firewall)

What stops a BYOD from using multipath? It will have to use the 4G connection when it isn't on the corporate wifi, so what keeps it from using both?

Comment: Re:Considering his history... (Score 1) 144

Wrong way around surely: The test audience found the movie confusing and sad and so the internal monologue and the happy ending was added. Later came the director's cut which attempted (unsuccessfully) to outdo 2001: A Space Odyssey for longest CGI scene with nothing happening.

Comment: Re: Alternative explanation (Score 1) 398

The reason why routers are so underpowered is that nobody uses multicast. If there was a strong demand for multicast I'm sure that the manufacturers would increase the capacity of their hardware.

If you build it and it costs less than 6 figures USD, you will drown in customers. It would not be used primarily for multicast at first, it would be used to get BGP working better, but every major ISP would want your router.

Using P2P does not lower the total load on the network, it just spreads it out more evenly.

Correctly done P2P sends traffic through the best route, typically from someone on the same ISP as the recipient and preferably from the same neighbourhood. That lowers total load a lot. Most current P2P networks do not particularly worry about optimal routing; they are much more constrained by traffic shaping or (often artificially) limited last-mile upstream capacity. It would be fairly easy to give priority to low-latency peers.

Besides, P2P can solve the problem of subscribers not watching at exactly the same time. Multicast breaks as soon as someone presses pause.

Comment: Re: Alternative explanation (Score 1) 398

Multicast is not a viable technology for truly large scale deployments (more than a few hundred thousand hosts perhaps). Routers and switches do not have the required resources to maintain multicast routing/switching tables for millions of multicast sessions.

The correct way to solve the problem is to push it to the end nodes. They have much more CPU power and memory than routers and switches. The technology to do so has existed for a long time: P2P.

God help those who do not help themselves. -- Wilson Mizner

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