- Hewlett-Packard Printer User Guide

Using the VPO Application Programming Interfaces
The VPO Interfaces
Chapter 4172
Figure 4-3 Interaction of VPO Service APIs with the Server/Agent
Message Flows
The Agent Message Stream Interface, the Agent Message API, and the
Agent Monitor APIs are available on the managed nodes, and all other
APIs are currently available on the management server only. See Table
4-1 on page 169 for more information.
Messages
Server Message
Stream Interface
Application
Response
Interface
VPO Management Server
Action
Responses
Action
Requests
Managed Node
Running VPO
Agent
Internal Message Stream
Legacy Link
Interface
VPO DB
VPO GUI
Messages
(copy or
divert)
Agent Message
Stream Interface
Detect events;
filter;
Generate
messages
Messages
Action
Requests
Action
Responses
Messages
Messages
Copy or
Divert
Messages
Message
Stream
Message Event
Interface