Protocol for:

  • Collecting and monitoring metrics about devices on a network
  • Syncing network clocks Queries are sent and received udp/161 If a metric is monitored to be too high or too low, an trap (alert) can be sent to the management server. Traps are sent and received over udp/162

Versions

SNMP V1

  • Structured tables
  • Unencrypted

SNMP V2

  • Allows for bulk transfers
  • Data type enhancements
  • Unencrypted

SNMP V3

  • Message integrity
  • Authentication
  • Encryption