Abstract
This disclosure describes Connectivity Fault Management (CFM) which is the protocol used in Ethernet Networks for detecting, verifying, and isolating connectivity failures. The CFM protocol uses Continuity Check Messages (CCMs) to detect and report faults in a service. A CFM service may be created between 2 endpoints (called MEPs) or it can also be created between multiple endpoints. In case of a multipoint-to-multipoint service, the CCMs are exchanged between multiple MEPs (present on different devices). The fault notification reporting mechanism defined in the IEEE 802.1Q-2018 standard, defines faults based on the local endpoint. This is not an optimized method of managing CFM faults, because a local MEP (endpoint) can be communicating with multiple other MEPs (as in case of multipoint to multipoint CFM service). Thus, there is a possibility of reporting faults on services that are actually fault free. The present disclosure proposes enhancements to solve these problems present with the current Fault notification mechanism supported in the IEEE 802.1Q CFM standard.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Anonymous, "CFM Fault Notification Enhancements", Technical Disclosure Commons, (July 14, 2023)
https://www.tdcommons.org/dpubs_series/6057