Connectivity Fault Management (IEEE 802.1ag / ITU-T Y.1731)

Connectivity Fault Management (CFM) as per IEEE 802.1ag / ITU-T Y.1731 is a collection of protocols and tools for OAM on Layer 2. CFM is used for monitoring and fault analysis in LANs, bridges, or Ethernet-based WANs.

The protocols particularly enable providers or operators and administrators of Ethernet connections to proactively monitor these connections or analyze them in case of faults.

LCOS supports the following functions:

The CCM, Loopback, and Linktrace functions can be used independently, meaning Loopback and Linktrace can be utilized even without regular CCM messages.

Additionally, LCOS supports the following functions from ITU-T Y.1731:

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