In Tony Li's article on path MTU discovery we see this text: "The next attempt to solve the MTU problem has been Packetization Layer Path MTU Discovery (PLPMTUD). Rather than depending on ICMP messaging, in this approach, the transport layer depends on packet loss to determine that the packet was too big for the network. Heuristics are used to differentiate between MTU problems and congestion. Obviously, this technique is only practical for protocols where the source can determine that there has been packet loss. Unidirectional, unacknowledged transfers, typically using UDP, would not be able to use this mechanism. To date, PLPMTUD hasn't demonstrated a significant improvement in the situation." Tony's article is (as usual) quite readable and useful, but my specific concern here is DNS... more
The Internet Engineering Task Force (IETF) is the standards body for the Internet. It is the organization that publishes and maintains the standards describing the Internet Protocol (IP -- versions 4 and 6), and all directly related and supporting protocols, such as TCP, UDP, DNS (and DNSSEC), BGP, DHCP, NDP, the list goes on, and on... But how do they do that? How does the IETF produce documents, and ensure that they are high quality, relevant, and influential? more
The recent NANOG 61 meeting was a pretty typical NANOG meeting, with a plenary stream, some interest group sessions, and an ARIN Public Policy session. The meeting attracted some 898 registered attendees, which was the biggest NANOG to date. No doubt the 70 registrations from Microsoft helped in this number, as the location for NANOG 61 was in Bellevue, Washington State, but even so the interest in NANOG continues to grow... more
Want to easily show people where a specific submarine cable goes? Or what cables terminate in a particular location? Last year I wrote about Telegeography's cool interactive submarine cable map and how useful it is to understand the submarine cable side of Internet infrastructure. In that article I mentioned how great it would be if you could get a link for a particular cable or location that you could pass along to other people. more
T-Mobile filed a petition today making it clear that the FCC's commercial reasonableness standard is a failure. Anyone following net neutrality knows that the FCC is proposing to authorize discrimination and pay-for-priority deals known as fast lanes. The FCC is claiming we need not worry, however, because the FCC can make sure that entrepreneurs and users face only "commercially reasonable" discrimination. more
You can't open a newspaper today, listen to the radio, or watch TV without hearing about the enormous explosion in the use of telecommunications technology - be it fixed or mobile broadband, the internet, social media, smartphones, tablets, wearables, IoT, cloud computing, the list is endless... Yet, at the same time, many telcos and ISPs are struggling to maintain their profitability. This defies economic logic. more
The timeline of the Net Neutrality issue has been detailed here. And quoting from Vox: 'Wheeler said that peering is "an issue that we are investigating, it's an issue we are very interested in, but it's not the issue here today."' more
Today, May 15, 2014 a vote will be taken at the FCC. Today the Internet we know can change forever. Today at 10:30 am EST the FCC meets to vote on the issue on whether or not allow the collection of special rates to provide certain services through the Internet for those who can afford it. A "faster lane" has been called... Who will pay for the use of this improved infrastructure? more
With more than 100 countries now involved in the rollout of FttH there is increased evidence that commercial demand exists for this infrastructure. In developed economies FttH demand will, over the next 5 years, grow to between 30%-50% of the population. Competition aimed at the top end of this market will trigger a broader rollout. A Bernstein study of Google's rollout of FttH in Kansas City concluded that the penetration measured by them was much higher than they had expected. more
People working on net neutrality wish for a "third way" — a clever compromise giving us both network neutrality and no blowback from AT&T;, Verizon, Comcast and others. That dream is delusional because the carriers will oppose network neutrality in any real form; they want paid fast lanes. They have expressed particular opposition to "Title II" of the Communications Act — something telecom lawyers mention the same way normal people might reference the First or Second Amendments. Title II is the one essential law to ban paid fast lanes. more
A World-Renowned Source for Internet Developments. Serving Since 2002.