Simple Network Management Protocal
Simple Network Management Protocol ‐Background Protocol Background
•In April 1989, SNMP was born. •It s an Application Layer Protocol •It’s an Application Layer Protocol •Facilitates the Exchange of Management Information between network devices and is Part of TCP/IP suit b kd i di f C / i •SNMP enables network administrators to :‐
– Manage network performance. – Find and solve network problems Find and solve network problems. – Plan for network growth.
•Mainly SNMP is a request‐and‐response protocol.
The Simple Network Management Th Si l N t kM t Protocol (SNMP) Protocol (SNMP)
•An Internet‐standard protocol for managing devices on IP networks. •Many kinds of devices support SNMP, eg routers, switches, servers, workstations, printers, modem racks, UPS etc •SNMP helps to monitor simple and standardized items, eg g •Amount of traffic flowing into or out of an interface • Air temperature inside a router. Etc
•Devices on the network, contain information about themselves. themselves •Devices keep information about the Status & Devices keep information about the Status & Health on neighbourhood devices & It Self •This information is the heart of Simple Network Management Protocol –SNMP
Network Management and Monitoring Network Management and Monitoring
• What operations do you carry out using SNMP h i d i e.g
– Shutdown an interface on a router or switch – monitor temperature on a switch and give a p g warning when it is too high or too low
• Remote Network Monitoring (RMON) was g( ) developed to help us understand how the network itself is functioning,eg network itself is functioning,eg
– It can be used to monitor not only LAN traffic, but WAN interfaces as well WAN interfaces as well
Before and After SNMP
• SNMP's predecessor is the Simple Gateway Management Protocol (SGMP), Management Protocol (SGMP) • SGMP was Limited to managing Internet routers • SNMP can be used to manage
– Unix systems, Unix systems,
•In April 1989, SNMP was born. •It s an Application Layer Protocol •It’s an Application Layer Protocol •Facilitates the Exchange of Management Information between network devices and is Part of TCP/IP suit b kd i di f C / i •SNMP enables network administrators to :‐
– Manage network performance. – Find and solve network problems Find and solve network problems. – Plan for network growth.
•Mainly SNMP is a request‐and‐response protocol.
The Simple Network Management Th Si l N t kM t Protocol (SNMP) Protocol (SNMP)
•An Internet‐standard protocol for managing devices on IP networks. •Many kinds of devices support SNMP, eg routers, switches, servers, workstations, printers, modem racks, UPS etc •SNMP helps to monitor simple and standardized items, eg g •Amount of traffic flowing into or out of an interface • Air temperature inside a router. Etc
•Devices on the network, contain information about themselves. themselves •Devices keep information about the Status & Devices keep information about the Status & Health on neighbourhood devices & It Self •This information is the heart of Simple Network Management Protocol –SNMP
Network Management and Monitoring Network Management and Monitoring
• What operations do you carry out using SNMP h i d i e.g
– Shutdown an interface on a router or switch – monitor temperature on a switch and give a p g warning when it is too high or too low
• Remote Network Monitoring (RMON) was g( ) developed to help us understand how the network itself is functioning,eg network itself is functioning,eg
– It can be used to monitor not only LAN traffic, but WAN interfaces as well WAN interfaces as well
Before and After SNMP
• SNMP's predecessor is the Simple Gateway Management Protocol (SGMP), Management Protocol (SGMP) • SGMP was Limited to managing Internet routers • SNMP can be used to manage
– Unix systems, Unix systems,