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Domain Name Registrations Kept Growing in 2009

The Internet Domain name industry didn't have too bad of a year in 2009, even as the global economic downturn raged. According to the latest Domain Name Industry Brief from VeriSign, the total base of registered Top-Level Domain Names (TLDs) grew in 2009.

VeriSign reported that in 2009, the base of TLDs expanded by 15 million domains names to a total of 192 million domain registration across all TLDs.

Helping to the lead the way were the .com and .net TLDs, which at the end of 2009 accounted for 96.7 million domain names. The 2009 tally represents a 7 percent increase over the total number of .com and .net TLDs at the end of 2008. The company also said that that during the fourth quarter of 2009 alone, it added 7.3 million new .com and .net registrations. VeriSign manages both the .com and .net registries under contract from ICANN.

The growth isn't the only milestone for the .com domain. On March 15, VeriSign will celebrate the 25th anniversary of the first .com name -- Symbolics.com -- which was assigned in 1985.

The .com and .net domain names aren't the only ones that are growing. The total number of country code Top-Level Domains (ccTLDs) also continued to rise in 2009. In total, VeriSign reported that there were 78.6 million ccTLD at the end of 2009, an increase of 7.5 million domain names from 2008.

Overall, there are now more than 240 ccTLDs in use, with China's .cn remaining the most popular ccTLD, followed by Germany's .de and the United Kingdom's .uk.

While China has been the top ccTLD since the third quarter of 2008, the rate of growth in the .cn ccTLD has actually slowed.

"The .cn base, which had been experiencing remarkable growth as high as 467 percent year over year, slowed its growth and ended the fourth quarter with a one percent decline in its base," VeriSign's report stated.

Sitting behind all those domain names is the global DNS (define) system, which VeriSign helps to administer. As domain names have grown, so too has the load on the DNS system. VeriSign reported that during the fourth quarter of 2009, it hit peaks of 61 billion DNS queries per day. Average daily DNS query load amounted to 52 billion per day, which is an increase of 48 percent over the same period in 2008.

In 2009, VeriSign improved its DNS capabilities by way of its $100 million project Titan, an effort to improve capacity by a factor of 10.

source:http:enterprisenetworkingplanet.com

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U.S. Preps Major Broadband Plan

U.S. regulators will announce a major Internet policy this week to revolutionize how Americans communicate and play, proposing a dramatic increase in broadband speeds that could let people download a high-definition film in minutes instead of hours.

Dramatically increasing Internet speeds to 25 times the current average is one of the myriad goals to be unveiled in the National Broadband Plan by the the Federal Communications Commission on Tuesday.

The highly anticipated plan will make a series of recommendations to Congress and is aimed at spurring the ever-changing communications industry to bring more and faster online services to Americans as they increasingly turn to the Internet to communicate, pay monthly bills, make travel plans and be entertained by movies and music.

"This is a fairly unique event," said Paul Gallant, an analyst with Concept Capital. "The FCC really has never been asked to design a broad regulatory shift like this. Broadband is important and difficult because it threatens every established communications sector."

Some details of the plan have trickled out in the last few weeks including how to find spectrum to meet an anticipated explosion of handset devices capable of playing movies and music in addition to handling emails and voice calls.

But some carriers like AT&T Inc and Qwest Communications International Inc were irked last month when the agency's chief, Julius Genachowski, announced that the FCC would propose in the plan a goal of 100 Mbps speeds to be in place at 100 million American homes in 10 years. The current average is less than 4 Mbps.

In a sign of tension between the FCC and carriers, Qwest called it "a dream" and AT&T reacted by saying the FCC should resist calls for "extreme forms of regulation."

Since the FCC announcement, Cisco Systems Inc announced it would introduce a router that can handle Internet traffic up to 12 times faster than rival products. Google Inc has also gotten in on the hype, saying it plans to build a super-fast Internet network to show that it can be done. The FCC has praised both announcements.

The plans could also touch off tensions with television broadcasters, who will be asked to give up spectrum to wireless carriers who desperately need it for their mobile devices, such as the iPhone and Blackberry.

The FCC plans to let them share in the profits of auctions structured to redistribute the spectrum.

"We've developed a plan that is a real win-win for everyone involved and we have every expectation that it will work," Genachowski said in an interview with Reuters.

"We've certainly heard from a number of broadcasters who told us they think this is a promising direction and are getting ready to roll up their sleeves with us," he said.

The FCC also wants to make sure that anchor institutions -- government buildings, schools, libraries and healthcare facilities -- get speeds of about 1 gigabit per second by 2020.

The full broadband plan is expected to be released at a Tuesday meeting among the FCC's five members who are expected to discuss the results and recommendations of the roadmap, which was mandated by Congress. Congress may have to pass legislation to enact some portions of the plan.

FCC officials have said some of the goals are aspirational and should be viewed as a "living, breathing" document for the next decade in hopes of helping 93 million Americans without broadband get connected.

Achievable

"It is both aspiration and achievable," Genachowski said.

The Obama administration has touted the plan as a way to create jobs and make energy use more efficient.

"It will be a call to action," said Blair Levin, who heads the FCC's broadband task force which has collected data and comments from the industry, academics and the public as well as from three dozen public workshops.

The FCC has placed most of its attention on broadband policy which Darrell West, director of governance studies at the Brookings Institution, called "the signature issue" since Genachowski took over the helm in late June.

"It means that broadband is going to drive other types of policy decisions and it really sets the parameters for telecommunications and new applications," West said.

FCC officials have said that the plan will not take sides on technology or applications, but they want to lay the groundwork to spur innovation and job creation.

Officials have said the plan will ask Congress to fund up to $16 billion to build an emergency public safety system.

It would also tell lawmakers that a one-time injection of $9 billion could accelerate broadband reach to the 4 percent of Americans who do have access. Otherwise they could let the FCC carry out a 10-year plan to realign an $8 billion U.S. subsidy program for universal broadband access instead of universal phone access.

Experts call the plan ambitious but question if the FCC, which plans to spin off a series of rule-making proposals linked to the plan, can realistically make good on its recommendations.

"There's so little progress on this stuff in Washington," said Rob Atkinson, who heads the Information Technology and Innovation Foundation.

"I think Chairman Genachowski has a real opportunity to bring different warring interests under 50-75 percent of the plan."

Copyright 2010 Reuters
source:internetnews.com

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Internet Protocol

The Internet Protocol (IP) is a protocol used for communicating data across a packet-switched internetwork using the Internet Protocol Suite, also referred to as TCP/IP.

IP is the primary protocol in the Internet Layer of the Internet Protocol Suite and has the task of delivering distinguished protocol datagrams (packets) from the source host to the destination host solely based on their addresses. For this purpose the Internet Protocol defines addressing methods and structures for datagram encapsulation. The first major version of addressing structure, now referred to as Internet Protocol Version 4 (IPv4) is still the dominant protocol of the Internet, although the successor, Internet Protocol Version 6 (IPv6) is being deployed actively worldwide.

IP encapsulation

Data from an upper layer protocol is encapsulated as packets/datagrams (the terms are basically synonymous in IP). Circuit setup is not needed before a host may send packets to another host that it has previously not communicated with (a characteristic of packet-switched networks), thus IP is a connectionless protocol. This is in contrast to public switched telephone networks that require the setup of a circuit for each phone call (connection-oriented protocol).

Services provided by IP

Because of the abstraction provided by encapsulation, IP can be used over a heterogeneous network, i.e., a network connecting computers may consist of a combination of Ethernet, ATM, FDDI, Wi-Fi, token ring, or others. Each link layer implementation may have its own method of addressing (or possibly the complete lack of it), with a corresponding need to resolve IP addresses to data link addresses. This address resolution is handled by the Address Resolution Protocol (ARP) for IPv4 and Neighbor Discovery Protocol (NDP) for IPv6.

Reliability

The design principles of the Internet protocols assume that the network infrastructure is inherently unreliable at any single network element or transmission medium and that it is dynamic in terms of availability of links and nodes. No central monitoring or performance measurement facility exists that tracks or maintains the state of the network. For the benefit of reducing network complexity, the intelligence in the network is purposely mostly located in the end nodes of each data transmission, cf. end-to-end principle. Routers in the transmission path simply forward packets to next known local gateway matching the routing prefix for the destination address.

As a consequence of this design, the Internet Protocol only provides best effort delivery and its service can also be characterized as unreliable. In network architectural language it is a connection-less protocol, in contrast to so-called connection-oriented modes of transmission. The lack of reliability allows any of the following fault events to occur:

  • data corruption
  • lost data packets
  • duplicate arrival
  • out-of-order packet delivery; meaning, if packet 'A' is sent before packet 'B', packet 'B' may arrive before packet 'A'. Since routing is dynamic and there is no memory in the network about the path of prior packets, it is possible that the first packet sent takes a longer path to its destination.
The only assistance that the Internet Protocol provides in Version 4 (IPv4) is to ensure that the IP packet header is error-free through computation of a checksum at the routing nodes. This has the side-effect of discarding packets with bad headers on the spot. In this case no notification is required to be sent to either end node, although a facility exists in the Internet Control Message Protocol (ICMP) to do so.

IPv6, on the other hand, has abandoned the use of IP header checksums for the benefit of rapid forwarding through routing elements in the network.

The resolution or correction of any of these reliability issues is the responsibility of an upper layer protocol. For example, to ensure in-order delivery the upper layer may have to cache data until it can be passed to the application.

In addition to issues of reliability, this dynamic nature and the diversity of the Internet and its components provide no guarantee that any particular path is actually capable of, or suitable for performing the data transmission requested, even if the path is available and reliable. One of the technical constraints is the size of data packets allowed on a given link. An application must assure that it uses proper transmission characteristics. Some of this responsibility lies also in the upper layer protocols between application and IP. Facilities exist to examine the maximum transmission unit (MTU) size of the local link, as well as for the entire projected path to the destination when using IPv6. The IPv4 internetworking layer has the capability to automatically fragment the original datagram into smaller units for transmission. In this case, IP does provide re-ordering of fragments delivered out-of-order.

Transmission Control Protocol (TCP) is an example of a protocol that will adjust its segment size to be smaller than the MTU. User Datagram Protocol (UDP) and Internet Control Message Protocol (ICMP) disregard MTU size thereby forcing IP to fragment oversized datagrams.

IP addressing and routing

Perhaps the most complex aspects of IP are IP addressing and routing. Addressing refers to how end hosts become assigned IP addresses and how subnetworks of IP host addresses are divided and grouped together. IP routing is performed by all hosts, but most importantly by internetwork routers, which typically use either interior gateway protocols (IGPs) or external gateway protocols (EGPs) to help make IP datagram forwarding decisions across IP connected networks

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