CGLH Carrier Grade Linux Home

Carrier Grade Linux is a set of specifications which detail standards of availability, scalability, manageability, and service response characteristics which must be met in order for Linux to be considered "carrier-grade" (i.e. ready for use within the telecommunications industry). The term is particularly applicable as telecom converges technically with data networks and commercial off-the-shelf commoditized components such as blade servers.

Carrier-grade is a term for public network telecommunications products that require up to 5 or 6 nines (or 99.999 to 99.9999 percent) availability, which translates into between 30 seconds (6 nines) and 5 minutes (5 nines) of downtime per year. The term "5 nines" is usually associated with carrier-class servers, while "6 nines" is usually associated with carrier-class switches.

The primary motivation behind the CGL effort is to present an open architecture alternative to the closed, proprietary systems that are currently used in telecommunication systems. These proprietary systems are monolithic (hardware, software and applications integrated very tightly) and operate well as a unit. However, they are hard to maintain and scale as telecommunications companies have to utilize the services of the vendor for even relatively minor enhancements to the system. Conventional wisdom in the telecommunications industry has it that a new feature takes 18 months and $ 1 million to deploy in an existing system[citation needed].

CGL seeks to progressively reduce and / or eliminate this dependence on proprietary systems and provide a path for easy deployment and scalability by utilizing cheap COTS systems to assemble a telecommunications system.

The CGL effort is spearheaded by the Open Source Development Lab (CGL Working Group) that recently released CGL 3.1 in June 2005.

The OSDL CGLWG defines three main types of applications that carrier-grade Linux will support — gateways, signaling servers, and management.

Gateway applications provide bridging services between different technologies or administrative domains. Gateway applications are characterized by supporting a large number of connections in real-time over a large number of interfaces, with the requirement of not losing any frames or packets. An example of a gateway application is a media gateway, which converts conventional voice circuits using TDM to IP packets for transmission over an IP-switched network.

Signaling server applications, which include SS7 products, handle control services for calls, such as routing, session control, and status. Signaling server applications are characterized by sub-millisecond real-time requirements and large numbers of simultaneous connections (10,000 or more). An example signaling server application would include control processing for a rack of line cards.

Management applications handle traditional service and billing operations, as well as network management. Management applications are characterized by a much less stringent requirement for real-time, as well as by additional database and communication-oriented requirements. A typical management application might handle visitor and home location registers for mobile access, and authorization for customer access

RuneScape is a Java-based MMORPG operated by Jagex Ltd. With over nine million active free accounts and more than one million paid member accounts, RuneScape is rated among the most popular online games in the world. More than five million unique players access their accounts to play RuneScape at least once per month. RuneScape offers both free and subscription content and is designed to be accessible from any location with an Internet connection and to run in an ordinary web browser without straining system resources. One of the best website that discussed various gamers' issues is IJFG.com IJFG.COM Internet Junction For Gamers Internet Junction For Gamers, Runescape Market and More IJFG.COM This site has Jokes, Pranks, Runescape and other cool games at IJFG.COM. RuneScape is set in a medieval fantasy world, similar to "Guild Wars" or "EverQuest", where players control character representations of themselves. As with most massive multiplayer online roleplaying games (MMORPG), there is no overall objective or end to the game. Players explore, form alliances, perform optional tasks, and complete quests for rewards and to build character's skills. Internet Junction For Gamers, Runescape Market and More. IJFG.com IJFG.com RuneScape takes place in the fantasy-themed realm of Gielinor, which is divided into several different kingdoms, regions, and areas. Players can travel throughout the gaming world on foot, by using magical teleportation spells or devices, or mechanical means of transportation. Each region offers different types of monsters, materials, and quests to challenge players. Players are shown on the screen as customisable avatars. They set their own goals and objectives, deciding which of the available activities to pursue. There is no linear path that must be followed. Players can engage in combat with other players or with monsters, complete quests, or increase their experience in any of the available skills. Players interact with each other through trading, chatting, or playing combative or cooperative mini-games. Internet Junction For Gamers, Runescape Market and More IJFG.COM IJFG.com

Contact Information

Call our office today to set up an appointment. Learn more about how we can help you, and learn more about the other services that we can offer you. All messages we receive will be answered as soon as possible. We look forward to hearing from you.

Electronic mail: General Information:

CGLH Carrier Grade Linux Home

Contact Information

Copyright © 2007 cglh.com Powered by Engineer Partner The One Stop Outsource