Archive for the ‘Networking’ Category

Google Wants To Make TCP Faster

Google has been pushing SPDY for a little while now, and so far I haven’t really seen a good argument against SPDY. Firefox 11 will ship with it, though disabled by default until the bugs are worked out. Now Google is turning its eyes towards TCP. Very logical. While there are a variety of proposals […]

Improving DNS CDN Performance With edns-client-subnet

Several months ago I wrote about how third party DNS services often slow you down since a DNS query is only one part of the equation and many websites use DNS to help their CDN figure out what servers are closest (and fastest). A few proposals to fix this have floated around, one is finally […]

$7.5M For 666,624 IPv4 Addresses

I’ve mentioned the pending IPv4 shortage before. The latest news is Nortel Networks IPv4 block being sold: Nortel Networks Corp. is doing its bit to alleviate the Internet space crunch, selling 666,624 IP addresses to Microsoft Corp. for $7.5 million. So cost per IP address is: $7.5 M / 666,624 = $11.25 $7.5 M sounds […]

Final IPv4 Unicast Address Allocations

For better or worse this really is a momentous moment for the internet. The full letter from the IETF Chair is as follows (copied for posterity): You have probably already heard the news, but just to make sure no one is left out of the loop, I am posting this note. The last five /8 […]

DNS And CDN Performance Implications

I’ve seen various people complain about performance problems when using services like Google’s DNS or OpenDNS. The reason why people generally see these problems is because many large websites live behind Content Distribution Networks (known as a CDN) to serve at least part of their content, or even their entire site. You’re getting a sub-optimal […]

Undersea Cable Map

Cable Map is an awesome website that shows known under sea cables on an interactive map (powered by Bing). It shows that there are actually many under sea cables. I mentioned a few months ago that most intercontinental data travels through undersea cables. I should note that the locations on the map are approximate for […]

Internet Under The Sea

Most people these days seem to insist that all telecom (phone, internet in particular) go overseas by way of satellites. This however is far from the truth. There are actually many trans-oceanic cables and they provide most of the capacity. Mail Online has a great article about what goes into keeping the continents connected. It’s […]

IPv6 By January 2012?

From ComputerWorld: John Curran, President and CEO of the American Registry for Internet Numbers, is warning Web site operators that they must enable IPv6 by Jan.1, 2012 or risk disenfranchising a significant number of their visitors While I agree IPv6 deployment is important, I don’t think most websites will be even close to making this […]

Google DNS Privacy Policy

John Gruber among others note that Google DNS service is not tied to Google Accounts. That’s not just wording in their privacy statement, it’s technically impossible for them to do otherwise, at least with reasonable accuracy. Your computer is associated with a Google account via a cookie given to you when you login. Cookies are […]

Google Public DNS Analysis

Google’s new Public DNS is interesting. They want to lower DNS latency in hopes of speeding up the web. Awesome IP Address This is the most interesting thing to me. I view IP addresses similar to the way Steve Wozniak views phone numbers, though I don’t collect them like he does phone numbers. [Querying whois.arin.net] […]