Feb 04 2008

Overhaul of Internet Addresses Begins: Root Servers are Being Updated for IPv6

Overhaul of Internet Addresses Begins: Root Servers are Being Updated for IPv6Feb 04, `08 — The first big steps on the road to overhauling the Internet’s core addressing system have been taken, Reports BBC.

On Monday the master address books for the net are being updated to include records prepared in a new format known as IP version 6. Widespread use of this format will end the shortage of addresses that sites can be given. The net’s current addressing scheme is expected to exhaust the pool of unallocated addresses by 2011.

Although people use words to navigate around the web, computers use numbers. A human may type news.bbc.co.uk into a browser bar but the PC trying to reach that site will use a numerical equivalent that it gets from the net’s master address books.

On 4 February the master or root servers for the net will have a small number of records added that are written in IP version 6 (IPv6) added to them. This means for the first time that computers using IPv6, typically a PC and a server, can find each other without involving any IPv4 technology. More at the BBC.


Dec 19 2007

CableLabs Awards Industry ‘First’ With DOCSIS 3.0 Qualification

CableLabs Awards Industry ‘First’ With DOCSIS 3.0 QualificationLOUISVILLE, Colo –BUSINESS WIRE– Dec 19, `07 — In a major milestone for the cable industry, CableLabs has awarded qualification status for Data over Cable Service Interface Specification (DOCSIS) 3.0.

DOCSIS 3.0 specifications enable downstream data rates of 160 Mbps or higher and upstream data rates of 120 Mbps or higher.

Casa Systems received “silver” qualification while Arris and Cisco received “bronze” qualification for their cable modem termination systems (CMTS) headend gear. The announcement comes at the conclusion of the recent test wave in which the first products built based on the DOCSIS 3.0 specifications were formally evaluated.

The headends were tested under a tiered program that was created as a way to encourage CMTS makers to submit gear for testing earlier than they otherwise might. CableLabs also offered suppliers numerous informal interoperability events where vendors work together in CableLabs’ facilities to test and evaluate their implementations of the specifications.

“This technological achievement is a great step for our industry,” said Brian L. Roberts, Chairman and CEO of Comcast Corp., and Chairman of the CableLabs Board of Directors. “CableLabs rapid certification effort will enable companies to begin to develop products that will support the rapid deployment of DOCSIS 3.0 services in 2008.”

To achieve these higher data rates DOCSIS 3.0 describes a methodology for channel bonding in both the upstream and downstream directions. A minimum of four channels, each with throughput of 40 Mbps, is specified. DOCSIS 3.0 also incorporates support for the Internet Protocol version 6 (IPv6).

IPv6 is the next generation of the Internet Protocol and greatly expands the number of Internet addresses that cable operators may use, allowing them to provide consumers with more IP-based services. In addition, DOCSIS 3.0 is backward compatible with all existing DOCSIS products.

IPv6 also will allow cable operators to effectively manage the proliferation of devices that are capturing consumer interest, including portable media players, cellular phones, gaming consoles, PDAs and others. More at CableLabs.