By the Master Agent - the Master Agent may invoke all agents with the agent resource file existing under SEA_SNMPConfiguration_Directory. The agents are invoked as specified in the Master Agent resource file. If the Master Agent successfully invokes a subagent, it creates a row entry in the subagent table and fills in the MIB variables with appropriate values for that subagent. A subagent is then registered with the Master Agent and is then ready to receive SNMP requests from the Master Agent.
Manually or automatically at boot time - system administrators/users may manually invoke subagents that have no agent resource file; or, startup scripts can invoke the subagents when the system is booted. Such agents can be invoked only after the Master Agent has been invoked. Additionally, these agents must have been created using the Solstice Enterprise Agent Software Development Kits (SDKs) and linked with the appropriate libraries. This allows the subagents to register dynamically with the Master Agent.