Zte ZXR10 5900E Product Description page 63

Path Discovery: MEP discovers with LTM/LTR message by tracking a MEP to another
MEP, or the path went through between MIP.
Fault Detection: MEP checks the network connection by CCM message that sent and
received regularly. Connection failure and NonWill connection (connected by mistake).
Fault acknowledgement and isolation: it's a kind of behavior of management. The
administrator acknowledges fault by LBM/LBR and implements certain isolation.
Fault notification: when there is connection fault in MEP direction, corresponding report
message will be sent to designated management system (such as NMS and TRAP).
Network status detection: Learn about network connection or network delay and jitter by
checking packets from MEP to MEP with time stamps or sending and receiving of
packets with counter.
MP is the smallest entity on management layer to implement functions, including MEP
and MIP. Comparatively, MEP implements more complicated functions than MIP does.
It's also more complicated to manage configuration than MIP. It can be said that CFM
functions are implemented by MEP, which can send, receive and process any messages
mentioned above. While MIP can only process LTM and LBM message; and send LTR
and LBR message as well.
3.2.28.3 Y.1731
E series medium-end switch supports the following Y.1731 features:

AIS (Alarm Indication Signal)

RDI (Remote Defect Indication)

LCK

Single-directional and bi-directional dealy detection
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ZXR10 5900E Product Description
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