1. Network Management Presentation HP Openview Christopher Scott December 10, 2004

2. OpenView Network Node Manager (NNM)

3. OpenView Network Node Manager Overview How it works Capabilities Technical and business benefits Summary

4. Network management tool Proactive network management Provides a solid solution for managing dynamic IP networks NNM is starting point for implementing a network management solution Overview Network Node Manager

5. What does it do? Dynamically maps out your network Collects critical information about you network Correlates the information it collect Maintains a relational database Provides report generation

6. How does it work? NNM uses several protocols to maintain communication with each managed device –SNMPv1, SNMPv2 –TCP/IP, IPX –UDP –ICMP –ARP/RARP

7. SNMP Network Mgmt Model Manager –A manager is an application that executes network management operations –The manager monitors and controls agent systems SNMP agent –Resides on a managed node –An application that acts on behalf of an object Object –Anything that will be managed Host, router, hub, application, database

8. Manager-Agent Communication through SNMP ManagerAgent MIB SNMP Request with Community Name Retrieve (get) management information Alter (set) management information SNMP Replies SNMP Traps

9. Automatic Discovery and Layout All IP and Level 2 devices on the network are automatically discovered and mapped IPX devices are also discovered Map is a logical representation of your network Automatic discovery may take several hours or even overnight

10. Example of network discovery and layout

11. Network Discovery (cont’d) NNM discovers the following objects and put them on the default map –Internet-level submap IP networks, gateways, routers and multihomed workstations –Network-level submaps Bus, star and ring segments –Segment-level submaps Hosts, gateways, routers, switches, hubs, and bridges –Node-level submaps Network interface cards

12. Typical Submap Hierarchy

13. Distributed Internet Discovery and Monitoring (DIDM) Large networks may require this distributed model Spreads discovery, monitoring, and polling across several Network Node Managers acting as collection stations Collection stations monitor some portion of the network and inform the management station of changes

14. DIDM (cont’d) NNM –can serve as a management station, a collection station, or both Management stations –Role is to make the network management functionality available to the users Collection stations –Role is to be a collection point in the overall network management system

15. Simplified Distribution Model for NNM

16. Management Consoles NNM gives the ability to have 15 to 25 operators simultaneously monitoring the network Operators can share one map, or have individual maps –Individual maps create area of responsibility on the network for each operator –More efficient in large networks

17. Multiple Management Consoles

18. Sample map views

21. Challenges to IT Service Management User dissatisfaction / increased user expectations Deploying network services, while maintaining productivity Keeping networks and systems operational 24/7/365 Producing faster, more predictable response times Integrating and managing complex systems in a multi-vendor environment

22. Technical benefits Network Management can help achieve those goals by: Fault and Problem Management –Reduced downtime of network systems and devices –Quick detection and correction of network problems Performance Management –Ability to monitor data to anticipate problems –Log information for historical analysis

23. Business Benefits Network Management can help achieve those goals through: Accounting Management –Obtains statistical information on network use –Track individual resource utilization Security Management –Protects the network and its systems from unauthorized access, use, and harm

24. Summary hp OpenView NNM is a robust network management platform that can provide a graphical look into your network and provide many benefits like Fault and Problem management, Performance management, etc Makes network management proactive instead of reactive NNM uses SNMP to discover devices on the network and automatically manage and monitor them NNM can play an integral role in achieving both the technical and business goals of an organization