LinuxCon | Presentations

Maintaining Linux Long Term & Adding Specific Features in Telecom Systems

Date: 3:45pm, Wednesday, September 29th
Location: Quarante 2
Topic: Systems Administration
Presentation: {Slides}

Telecom carriers have adopted Linux for the network equipments since 2002. We've been providing and supporting the telecom system over 5 years. This presentation shows our experiences, how to keep the system stability and availability high and some improvements. In telecom system, rebooting is rare because of availability. And regressions must be avoided. So we selected patches which really affect the service. Also we applied those patches into live kernel. Next to detect service failure is important. We implemented watchdog timer for user processes is useful to find buggy application which gets into busy loop. And then, once a problem occurred, we must find the root cause out and fix. We improved some debugging features in our kernel, to make crashdump more reliable, to store failure information into non volatile memory and etc. This session is intended to provide some tips for supporting the system in the long term. Many engineer join the projects which require high reliability and don't allow to update kernel version. We will show you how to deal with problems in limited regulation.

People planning to attend this session may also want to see:

» oFono: Open Source Telephony · Denis Kenzior, Intel Corporation

Keika Kobayashi, NEC

Keika Kobayashi is a engineer at NEC Communication Systems, Ltd in Japan. He received BS from Tokyo University of Science and have worked at my company from 1997. In telecommunication, network equipment have based on Linux for 10 years. Linux support became important for the quality of product. In 2007, He joined Linux Technologies Center which provides technical support. He submitted a few accounting patches to 2.6 kernel.

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