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September
2006, Volume 12, Number 9 |
Finding the Needle in a Haystack
When troubleshooting a connection, technicians are faced with a cluster of fibers, all at one central test point. How can defective fibers be identified without disconnecting fibers and services at random? EXFO has the answer.
[Click here for full story] | The Layered Approach to VoIP Testing
As VoIP networks and services are multilayered, and IP itself is based on the layered building blocks of the OSI protocol stack, the most thorough way to test these services is to use a technique that is similar to this layered structure.
[Click here for full story] | The Importance of IP Header and UDP Checksum
With the strong demand for VoIP and IPTV over Ethernet networks, service providers now have to analyze higher-layer protocols to ensure proper data integrity at the crucial IP and UDP layers, which can be achieved through the validation of checksums.
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