Essentially , SNMP agents expose management data on the managed systems as variables -LRB- such as `` free memory '' , `` system name '' , `` number of running processes '' , `` default route '' -RRB- .

SNMP agents expose management data on the managed systems as variables -LRB- such as `` free memory '' , `` system name '' , `` number of running processes '' , `` default route '' -RRB- .
