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 overudp/162
Versions
SNMP V1
- Structured tables
- Unencrypted
SNMP V2
- Allows for bulk transfers
- Data type enhancements
- Unencrypted
SNMP V3
- Message integrity
- Authentication
- Encryption