SNMP and CMIP

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 egLack 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)

15
(No Transcript)
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.
• Its 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/snmp.html