1. SNMP and CMIP By, Vishwajit Singh Srigiri Laxman Srinivas ISQS 6341, Spring 2000

2. What is Network Management?  NETWORK MONITORING  NETWORK CONTROL

3. Network Monitoring Observing and Analyzing the status and behavior of the End Systems Intermediate Systems Sub-networks

4. Network Monitoring Architecture  Network Monitoring Information.  Network Monitoring Configurations.  Polling and Event Reporting.

5. Network Monitoring Information  Static : eg. identification of a port on a router.  Dynamic : eg. transmission of a packet on the network.  Statistical : eg. number of packets transmitted per unit of time by an end system.

6. Network Monitoring Configurations Based on Client-Server Model. CLIENT SERVER

7. Polling and Event Reporting  Polling : Manager generates the requests periodically.The initiative is with the manager.  Event Reporting : The initiative is with the agent.

8. Monitoring Types  Performance Monitoring  Fault Monitoring  Accounting Monitoring

9. Performance Monitoring  Availability  Response Time  Accuracy  Throughput  Utilization

10. Fault Monitoring  Unobservable Faults : eg.Vendor may not have taken care of.  Partially Observable Faults : eg.Node failure.  Uncertainty in Observation : eg:Lack of response from remote device.

11. Accounting Monitoring: Keeping the track of the usage of the network resources by the users.

12. Network Control Is concerned with modifying parameters in, and causing actions to be taken by, the end systems, intermediate systems, and subnetworks that make up the configuration to be managed.

13. Configuration Control Modification Types: Database update only Database update plus resource modification Database update plus action

14. SNMP Simple Network Management Protocol is an Application layer protocol. Part of the TCP/IP protocol suite. Basic Components of SNMP: 1. Manager 2. Agent 3. MIB(Management Information Base)

16. Management Information Base  Database containing the information about the elements to be managed.  Each resource to be managed is referred as an object.  Network manager monitors the resource by reading the values of the objects and controls the objects by modifying these values.

17. MIB  Associated with each object in the MIB is an identifier called the OBJECT IDENTIFIER.  Its used for naming the object.  It’s a unique identifier for a particular object type and its value consists of a sequence of numbers.

18. Ready for a DEMO??????  http://www.rad.com/networks/1998/snmp/s nmp.html http://www.rad.com/networks/1998/snmp/s nmp.html