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COVID-19: As a designated essential telecom solutions provider, EXFO remains fully operational with our employees' health and safety as our top priority.

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Glossary

Technology evolves at a rapid-fire pace. That’s why we’ve built an easy-to-use glossary to help you better understand the terms, technologies and trends that impact your business.

Connectivity fault management (CFM)

As described in the IEEE 802.1ag standards, CFM defines the protocols and practices for OAM (Operations, Administration, and Maintenance) for paths transmitted through a carrier Ethernet network.

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