1 Network Management Open Management Introduction Open Approaches for Management Issues in Open Management Conclusions

2 Network Management Introduction Open Management Automated Network and Systems Management in a Non-Proprietary, Widely Accepted Standard Fashion. OSI Management (ISO/ITU-T). Internet Management. Not Limited to CMIP and SNMP.

3 Network Management Why Open Management Interoperability Ability of individual components within an open management environment to exchange information (i.e., interworking) Portability Ability to easily place management functions in various platforms. Integration Integration of lower-level, individual (e.g. element management) systems to achieve higher-level, integrated management (e.g., service management).

4 Network Management Manager-Agent Model Legend ： MA : Manager Applications MO : Managed Objects R : Real Resource Network Agent MO R Communication Protocols Manager MA Management Operation Response Event Communication Protocols

5 Network Management Management Components Manager Agent Management Communication Protocol Management Information Base (MIB) Collection of Managed Objects

6 Network Management Object-Oriented Management Model  Objects: Application, Service, MO,...  ORB: Object Request Broker ORB

7 Network Management Open Approaches for Management Manager-Agent Model ISO/ITU-T OSI Management (CMIP) IETF Internet Management (SNMP) X/Open XMP/XOM API Object-Oriented Management Model OMG's CORBA Specific Management Domain ITU-T TMN

8 Network Management OSI Management OSI Protocol Stack Link ACSEROSE CMISE... SMASE MAs OSI Protocol Stack Link ACSEROSE CMISE... SMASE MO SMFs CMIS/P SMI/GDMO Network Common Management Information Protocol

9 Network Management SMFs SMFAs SMFs Applications CMIS GetSetActionCancel GetEvent ReportDeleteCreate Lower Layer Services FM CM PMSM AM Object Management State Management Attributes for Repre- senting Relationships Alarm Reporting Management Event Reporting Management Log Control Security Alarm Reporting Security Audit Trail Objects and Attributes for Access Control Accounting Metering Workload Monitoring Test Management Summarization Systems Management Functions

10 Network Management Internet Management IP Network (Internet) UDP/IP Agent MO R UDP/IP Manager MA Set/Get/GetNext Req. Get Resp. Trap SNMP SMI Simple Network Management Protocol

11 Network Management What's New in SNMPv2 No more Trap PDU, 3 New PDUs: getBulkReq, InformReq, SNMPv2-Trap Added Security 18 Error Status Values SNMPv2 SMI / SNMPv2 MIB M-to-M Communications Table Operations...

12 Network Management CMIP vs. SNMP CMIPSNMP GDMO Object-Oriented 7 Service Primitives Event-Oriented Connection-Oriented Scoping/Filtering Global Naming (X.500) Security Mechanism OSI Seven Layers Internet SMI Object-Based 5 Messages Polling Connectionless GetNext Local Naming (OID) Community Name Internet TCP/IP

13 Network Management X/Open XMP/XOM X/Open = Portability XMP Provide CMIS and SNMP Service API. Recognizes Both GDMO and SNMP MOs. XOM Maps ASN.1 data to a uniform data structure "om_object". Provide API for the manipulation of om_objects. Base for XMP Interface.

14 Network Management OMG's CORBA Object Management Architecture Object Request Broker Application ObjectsCommon Facilities Object Services Common Object Request Broker Architecture

15 Network Management ΣΧΕΣΗ ΤΜΝ & ΤΗΛΕΠ/ΚΟΥ ΔΙΚΤΥΟΥ Operation System Operation System Operation System Σύστημα Μεταγωγής Σύστημα Μετάδοσης Δίκτυο Επικοινωνίας Δεδομένων DCN Τηλεπικοινωνιακό Δίκτυο Work Stations TMN Σύστημα Μεταγωγής

16 Network Management ΣΤΡΩΜΑΤΑ ΔΙΑΧΕΙΡΙΣΗΣ ΔΙΚΤΥΟΥ  Επιχειρησιακή Διαχείριση (BML)  Διαχείριση Υπηρεσιών (SML)  Διαχείριση Δικτύου (NML)  Διαχείριση Στοιχείων Δικτύου (EML)  Στοιχεία Δικτύου (NE)

17 Network Management …… TMN Γ΄ Επίπεδο, 42 Θέσεις TMN B΄ Επίπεδο Στοιχεία Δικτύου Αθήνα TMN A΄ Επίπεδο Δίκτυο Επικοινωνίας Δεδομένων BML SML NML SML, NML EML ΑΡΧΙΤΕΚΤΟΝΙΚΗ TMN ΣΤΟΝ OTE

18 Network Management NMC 2 NMC 2 ΘΕΣΕΙΣ Γ΄ ΕΠΙΠΕΔΟΥ (ενδεικτικά) ΘΕΣΕΙΣ Β΄ ΕΠΙΠΕΔΟΥ ΕΘΝΙΚΟ ΣΥΣΤΗΜΑ ΔΙΑΧΕΙΡΙΣΗΣ ΔΙΚΤΥΟΥ NMC 1 NMC 2 ΘΕΣΗ Α΄ ΕΠΙΠΕΔΟΥ

19 Network Management Issues in Open Management Standardization is always in progress. Options in standards will be an interoperability barrier. Interoperability Testing. Interworking among standards. XMP/XOM API Complexity. Coexistence with Legacy systems....

20 Network Management Potential Solutions International Standard Profiles (ISPs). Agreements and Specifications of NM Forum, OMG, X/Open, OSF,... IIMC (ISO/ITU-T and Internet Management Coexistence) A New CMIS API. Open Management Edge (OME).

21 Network Management Conclusion Open management is a big trend. From element management to service management. OSI management systems emerge. TMN: a focal point

22 Network Management End of Fifth Lecture