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BitTorrent at War With VoIP? Hardly

GigaOM

- 1 hours and 15 minutes ago

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The Internet is close to a meltdown, according to The Register. The culprit, according to author Richard Bennett, is the popular BitTorrent client uTorrent, which introduced a new type of file transfer with its most recent alpha version. BitTorrent clients have long been using the TCP protocol to facilitate file transfers, but now uTorrent is moving to UDP, a protocol that is very popular for streaming media, VoIP and other real-time transfers. This will essentially lead to torrents eating up all of the bandwidth available for VoIP, according to Bennet, who calls uTorrent’s UDP transfers a “net-killing feature.”

Of course, the same argument was made when UDP-based VoIP connections and video streams became popular — and the Internet hasn’t ceased to exist. The truth is that uTorrent’s UDP implementation could actually be a step toward alleviating congestion problems. Bennet, however, decided to ignore this and instead serve up nothing more than a thinly veiled rant against net neutrality.

Bennet’s piece is based on a belief that UDP traffic is “aggressive” and uncontrollable, whereas TCP is the nice and proper protocol that can be easily managed. This notion ignores the basic fact that P2P developers, in order to make the protocol work at all, need to implement TCP-like functionalities on top of UDP, one of which includes congestion control. You simply can’t operate a P2P client that eats up all of its users’ bandwidth, much less build a successful business model on top of it.

BitTorrent Inc. has been working on establishing itself as a CDN solutions provider, offering media companies the ability to tap into its vast user base to deliver video and other huge files. Of course, this only works if end users are actually willing to provide some part of their upload bandwidth, and they are only willing to do so if file transfers don’t stop them from doing other things, like playing online games or making VoIP calls.

BitTorrent has traditionally entrusted its users with figuring out how to balance their network load, meaning that users had to manually limit their client’s maximum upload and download rate in case they encountered choppy Skype connections or similar problems.

uTorrent’s new implementation wants to automate this process by regulating its UDP traffic in relationship to ongoing TCP transfers. The company has tested its congestion control in recent months, and the first results seem encouraging, as a quote from a report (PDF) that the company recently shared with the IETF reveals:

“In one example, (BitTorrent) was used to download and seed game updates while an online multiplayer game was being played. With TCP used for transport the way it is usually used in BitTorrent, ping times shot up to 2000 milliseconds and beyond and stayed there while seeding. With the novel congestion control, ping times were in the 50-100 millisecond range, while the upload rate remained essentially unchanged.”

For now, we do have to take the company’s word for it that this actually works. uTorrent is not open source, and the client’s UDP file transfer protocol hasn’t been publicly specified, either. BitTorrent Inc. V-P Simon Morris has declared in a public response to the Register article that his company is working with the IETF to find “solutions that can be standardized and broadly adopted in due course.” In fact, BitTorrent engineerÂ Stanislav Shalunov is co-chairing an IETF working group for this very purpose.

So why did Bennett chose to ignore all of this? Because a little scaremongering can go a long way to make the case for an ISP-based network management clampdown on P2P traffic. The only way to prevent the coming Internet meltdown, he contends, is to filter out uTorrent’s UDP transfers on the ISP level, and the only way to get this done is do away with net neutrality. Right — because if there’s one thing that we’ve learned from the financial sector, it’s that meltdowns are best prevented by doing away with regulation.

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open sources,torrents,reveals,bittorrents,quotes

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Bridge Network with Airport Issues Connecting PC via Ethernet

Mac Forums - iPod touch

- 17 hours and 26 minutes ago

Hello there

Alright so, I have the following equipment...

1st Generation Macbook Pro
Airport Hub (bought shortly after the macbook)
Wireless Router connected to the cable outlet (Provided to me by ISP)
HP Pavilion 752n with Windows 2000 Professional
- ATI Radeon 9600 Pro installed in PC.

I have in the past run on a wireless network set up via my Airport. My PS3 connects to it as well. I'm using WPA/WPA2 security settings etc. The airport has been connected to my router, which is connected to the cable outlet.

I just recently brought my old PC up from home to my apartment, and have been trying to get internet up and running on it. I have plugged an ethernet cable into the Airport, and into the back of the PC, and no internet. HOWEVER, I do have a "Local Area Connection" that starts up immediately upon plugging the cable in. So, after tinkering with this for HOURS, it seems like the PC is almost connected to itself. It doesn't show any hardware connected to it. I try searching via the IP address, and I don't access the router menu. The local area connection shows an exact speed of 100.0 Mbps (never changes) and somehow packets are being sent and received.... I have no idea what's going on....

The internet DID work for a short while. While it was working, I installed a new driver for my graphics card, restarted the computer, and presto the internet was gone. I removed the driver, and still no internet...

Somehow I'm stuck in some weird bridge cycle. I have no idea what's going on. I've tried connecting the PC to both the ISP router and the Airport, and messed with both the Airport settings and the ISP router settings, and haven't gotten anything...

Thoughts? Obviously the PC has to be connected by ethernet, but I truly have no idea why this isn't working. Should be just like a LAN no? ICS?

Add a comment

airports,windows 2000,wireless networks,generations,old pc

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3 New Ways To Network and Find People Online

Friedbeef's Tech

- 1 days ago

Nowadays you can find almost any information on any person online. An employer can learn his potential worker’s past records and recommendations. You can investigate a person’s character, friends, find his photos and videos. Alternatively you can look for no one in particular - searching for new connections with similar interests or professional goals. You can even look for a buddy to share a room or trip expenses. So let’s go beyond ‘Google-ing’ someone and see how else people are searched and found over the Internet.

1. How to find people based on interest

peoplejar

PeopleJar is a service connects people through the networks of interests. You can search people by any combination of relevant attributes, you can create your own search and save it to let the system update you of new members meeting the search criteria.

2. How to aggregate results from several social networks

wink

Wink.com is a social media profile aggregator and people search tool. It has now the ability to unite and crawl profiles from most popular social networking sites: MySpace, Facebook, Twitter, etc. The process looks like this: a person signs up with Wink, adds links to his profiles at any (or all) supported social media sites and thus gets into the search index.

3. How to search people by name using people search engines

zoominfo

Zoominfo.com focuses on business related information: it will look for the person as an employee of various companies. It has a fairly large database and you most likely to find relevant business related information on the person you are interested in.

Have you looked for people online? Tell us your experience in the comments!

This is a guest post by Ann Smarty, who does SEO and Internet Marketing when she’s not writing for blogs-named-after-food. Want to write for Friedbeef’s Tech and share your tips with thousands of people? Drop me a line. We’re looking for paid regulars, as well as guest appearances.

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