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Networking Intermediate

What is SNMP (Simple Network Management Protocol)?

A protocol for monitoring and managing network devices like routers, switches, servers, and printers remotely.

SNMP collects information from network devices using a manager-agent model. Agents run on devices, exposing data (CPU usage, interface traffic, error counts) via OIDs (Object Identifiers) organized in MIBs (Management Information Bases).

Operations include GET (read value), SET (change value), and TRAP (unsolicited alert). SNMPv3 adds encryption and authentication. SNMP is widely used in network monitoring tools like Nagios, Zabbix, and PRTG.

Related Terms

Anycast
A network routing technique where the same IP address is announced from multiple locations, directing users to the nearest server.
Subnet
A logical division of an IP network into smaller segments to improve performance, security, and management.
CIDR Notation
A compact method for specifying IP addresses and their associated routing prefix using a slash followed by the prefix length.
Load Balancer
A device or software that distributes network traffic across multiple servers to ensure reliability and performance.
Traceroute
A network diagnostic tool that shows the path packets take from source to destination, listing each hop along the way.
Bandwidth
The maximum rate of data transfer across a network connection, measured in bits per second.
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