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| Wednesday, 16 December 2009, 16:28 HKT/SGT | |
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Source: Fujitsu Ltd | |
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TOKYO, Dec 16, 2009 - (ACN Newswire) - NTT DOCOMO, INC. and Fujitsu Limited announced today their development of two technologies to detect and locate "silent failures" in IP networks much faster and more accurately than currently possible (see diagrams below).
The new technologies will enable DOCOMO to significantly shorten the time required to recover from silent failures, which will support the eventual launch of extra-high-speed LTE services over DOCOMO's emerging IP-based mobile network.
A silent failure occurs when a router in an IP network fails and data transmission is halted without the network administrator being notified, since routers cannot detect internal failures. Network operators can install dedicated monitoring devices that detect silent failures, but only by continually transmitting test data throughout the entire network and then analyzing the test results, making the process time-consuming.
One of the two new technologies analyzes data on not only test transmissions but also loss rates and network delays, which facilitates faster detection of silent failures. It can also detect warning signs of silent failures that are possibly about to occur.
The second technology identifies the location of silent failures in an efficient manner by analyzing data only from routes over which data is actually being transmitted. In trials conducted on DOCOMO's existing FOMA 3G network, the technology identified failure locations by up to 80 percent faster than the conventional method. This technology also enhances conventional network-monitoring systems by analyzing failure and operational data in combination, which improves the accuracy of failure location and enables ordinary and silent failures to be separately identified.
Contact:
NTT DOCOMO
Shoichiro Kaneko or Naoko Minobe
International PR
Public Relations Department
Tel: +81-3-5156-1366
Fax: +81-3-5501-3408
Website: www.nttdocomo.com
Inquiries may also be made through the following URL: http://www.nttdocomo.com/contact
Fujitsu
Public and Investor Relations
http://www.fujitsu.com/global/news/contacts/
+81-3-3215-5259
Topic: Press release summary
Source: Fujitsu Ltd
Sectors: IT Individual
https://www.acnnewswire.com
From the Asia Corporate News Network
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