SNMP allows for remote and local management of networked devices. It is comprised of agents, which collect information from managed nodes, and managers, which request information from agents. SNMP uses a client-pull model, where the manager pulls data from the agent, and a server-push model, where the agent pushes trap messages to the manager. It has four basic operations: get, getnext, set, and trap.
2. SIMPLE NETWORK MANAGEMENT PROTOCOL
SNMP is a tool (protocol) that allows for remote and local
management of items on the network including servers,
workstations, routers, switches and other managed devices.
Comprised of agents and managers
Agent - process running on each managed node collecting
information about the device it is running on.
Manager - process running on a management workstation that
requests information about devices on the network.
4. CLIENT PULL AND SERVER PUSH
SNMP is a client pull model.
The management system (client) pulls data
from the agent (server).
SNMP is a server push model
The agent (server) pushes out a trap message
to a (client) management system
5. THREE PARTS OF SNMP
SNMP Protocol
Structure of management system.
Management information base.
6. SNMP NODES
Managed nodes.
Management nodes.
Nodes which are not manageable by
SNMP