Zte ZXR10 5900 Series User Manual page 108

ZXR10 5900/5200 Series User Manual (Ethernet Switching Volume)
F 27 E N
IGURE THERNET
96 Confidential and Proprietary Information of ZTE CORPORATION
M
ETWORK AINTENANCE
Route discovery: MEP use LTM/LTR to track the route from one
MEP to another MEP or between MIPs.
Fault detection: MEP use periodically sending and receiving CCM
information to detect network connection. It mainly detects con-
nection fault and unwanted connection (fault connection status).
Fault affirmation and isolation: This function belongs to manage-
ment act, manager affirms fault bill by LBM/LBR, then does the
isolation operation.
Fault notification: When MEP has connection fault, the relevant re-
port information will be sent to the designated management sys-
tem such as NMSTRAP and so on.
Network status detection: estimate network connection status or
network delay jitter status through detecting the packet with time
stamp between MEPs or packet transceiver with counter value.
MP, includes MEP and MIP, is the smallest entity of management
layer realizable function. By comparison, realizable function of
MEP is more complicated than that of MIP and management con-
figuration is more complex. In some extent, CFM function is mainly
implemented by MEP. MEP can send, receive and handle any one
of above information. But MIP only can handle LTM and LBM infor-
mation and send LTR and LBR information.
D I R
OMAIN NCLUSION ELATIONSHIP
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