Difference between Agent vs Integration Server?

Agent Server:

• The Process that runs the time-triggered transactions. Time triggered means program running at specific time intervals.
• Multi-threaded
• Server type in YFS_SERVER table as 01 (Agent Server)
• Internal within IBM Sterling.  Example: Create Shipment, Sent to Node, Schedule, Release Transactions etc.,

Integration Server:

• The Process that manages Asynchronous services, such as messages to and from External systems can get work from message queues, database tables, and files.
• Multi-threaded
• Server type in YFS_SERVER table as 00 (Integration Server)
• External with IBM Sterling.  Example: Confirmation/Integration with other system.