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254 • Linux Symposium 2004 • Volume One research/linux/ q-tools/ [5] David Mosberger, http://www.gelato.org/ community/gelato_ meeting.php?id=CU2004# talk19 [6] qprof homepage, http://www.hpl.hp.com/ research/linux/qprof/ [7] netperf homepage, http: //www.netperf.org/
Carrier Grade Server Features in the Linux Kernel Towards Linux-based Telecom Plarforms Ibrahim Haddad Ericsson Research ibrahim.haddad@ericsson.com Abstract Traditionally, communications and data service networks were built on proprietary platforms that had to meet very specific availability, reliability, performance, and service response time requirements. Today, communication service providers are challenged to meet their needs cost-effectively for new architectures, new services, and increased bandwidth, with highly available, scalable, secure, and reliable systems that have predictable performance and that are easy to maintain and upgrade. This paper presents the technological trend of migrating from proprietary to open platforms based on software and hardware building blocks. It also focuses on the ongoing work by the Carrier Grade Linux working group at the Open Source Development Labs, examines the CGL architecture, the requirements from the latest specification release, and presents some of the needed kernel features that are not currently supported by Linux such as a Linux cluster communication mechanism, a low-level kernel mechanism for improved reliability and soft-realtime performance, support for multi-FIB, and support for additional security mechanisms. 1 Open platforms The demand for rich media and enhanced communication services is rapidly leading to significant changes in the communication industry, such as the convergence of data and voice technologies. The transition to packetbased, converged, multi-service IP networks require a carrier grade infrastructure based on interoperable hardware and software building blocks, management middleware, and applications, implemented with standard interfaces. The communication industry is witnessing a technology trend moving away from proprietary systems toward open and standardized systems that are built using modular and flexible hardware and software (operating system and middleware) common off the shelf components. The trend is to proceed forward delivering next generation and multimedia communication services, using open standard carrier grade platforms. This trend is motivated by the expectations that open platforms are going to reduce the cost and risk of developing and delivering rich communications services. Also, they will enable faster time to market and ensure portability and interoperability between various components from different providers. One frequently asked question is: ’How can we meet tomorrow’s requirements using existing infrastructures and technologies?’. Proprietary platforms are closed systems, expensive to develop, and often lack support of the current and upcoming standards. Using such closed platforms to meet tomorrow’s requirements for new architectures and services is almost impossible. A uniform open software environment with the characteristics demanded by telecom
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Proceedings of the Linux Symposium
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The State of ACPI in the Linux Kern
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Conference Organizers Andrew J. Hut
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TCP Connection Passing Werner Almes
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Linux Symposium 2004 • Volume One
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Cooperative Linux Dan Aloni da-x@co
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Build your own Wireless Access Poin
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Linux Block IO—present and future
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Linux AIO Performance and Robustnes
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Methods to Improve Bootup Time in L
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Linux on NUMA Systems Martin J. Bli
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Improving Kernel Performance by Unm
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Linux Virtualization on IBM POWER5
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The State of ACPI in the Linux Kern
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Scaling Linux® to the Extreme From
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Get More Device Drivers out of the
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