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This paper provides background on the different topologies used to deliver Ethernet services, their corresponding test methodologies and the selection of the appropriate test mode according to the top...

This application note focuses on the possible approaches to dealing with excess PMD and highlights the preferred one, from a cost-effective standpoint.

This application note explains why it is essential to analyze not only the circuit ofinterest, but the environment around the circuit when testing services.

This application explains EXFO's offeringfor commissioning, turning-up and qualifying 10 GbE LAN services end-to-end over OTN.

This application note examines the basic technical aspects of MPLS and the testing needs associated with deploying and maintaining such a network.

This article demonstrates how OSNR can be derived, for each individual channel, from an optical spectrum measurement to obtain indirect information about the performance of these channels and hence of...

This note examines how each application can be tailored to address individual requirements, so as to help service providers select the best approach for them.

This application note focuses on connectors as key components that interconnect the entire network elements and how to maintain maintain them in good condition to avoid network failure.

This application note demonstrates how linearity at the far end of an OTDR trace is very important to guarantee proper link loss, event loss and attenuation readings.

This application note discusses the various challenges of CWDM testing during construction, installation, activation and troubleshooting phases; it also presents specialized testing equipment.