, . , . - , , . - , , , , .
. , , - . Telecommunication Management Network (TMN), ITU-T, ISO, ANSI ETSI. , . TMN ITU-T ( ), TMN .3010.
TMN , ( , , , ), . , , , .
TMN (. 7.1).
. 7.1.
- (Network Element layer, NE) - : , , , , . . - , , , - , . , . FDDI, ISDN, frame relay, SDH. , , . , , , , - SNMP CMIP. OSI.
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- (network element management layer) - . - SDH, . . . . . CiscoView Cisco Systems, Optivity Bay Networks, RADView RAD Data Communications . .
(Network management layer). , , . . , .
- (Service management layer) - , . , , . (service provisioning) , , , , . . . , . , , . , frame relay CIR , .
- (Business management layer) , . , , . - . (), (), , . , . , .
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