This subsection describes each JP1/Software Distribution program.

(a) JP1/Software Distribution Manager

JP1/Software Distribution Manager can use all the resource and distribution management facilities provided by JP1/Software Distribution. It manages the relay managers/systems and the clients positioned under them. The JP1/Software Distribution Manager positioned at the top of a system is called the central manager.

JP1/Software Distribution Manager can also be a relay manager/system. A JP1/Software Distribution Manager used as a relay manager/system is called a relay manager.

(b) JP1/Software Distribution Client

JP1/Software Distribution Client is used as a relay manager/system or as a client in a JP1/Software Distribution system. When you install JP1/Software Distribution Client, you select whether it is to be used as a relay manager/system or as a client. JP1/Software Distribution Client used as a relay manager/system is called a relay system.

The following table lists the programs that can be used in the system components (managing server, relay manager/system, and client) and their types:

Table 1-1 Programs that can be used in the system components

System component	Applicable program	Type#
Managing server	JP1/Software Distribution Manager	Central manager Relay manager
	JP1/Software Distribution Client	Relay system
Relay manager/system	JP1/Software Distribution Manager	Relay manager
	JP1/Software Distribution Client	Relay system
Client	JP1/Software Distribution Client	Client

#: You select the type when you install the program. For details about program installation, see 2. Installing JP1/Software Distribution Manager or 3. Installing JP1/Software Distribution Client in the Setup Guide.

(a) Programs that can be used in the managing server

Basically, the managing server uses JP1/Software Distribution Manager, which is a program for administrators. You can use JP1/Software Distribution Manager to manage the entire JP1/Software Distribution system such as a central server at the headquarters.

You can also position JP1/Software Distribution Client at the top of the system and use it as the managing server. However, compared to using JP1/Software Distribution Manager as the managing server, there are limitations when using JP1/Software Distribution Client in this role, such as the number of clients that can be managed. Therefore, this usage should be employed only in a small system in which only a few dozen clients are to be managed.

For details about the functional differences between JP1/Software Distribution Manager and JP1/Software Distribution Client, see D.1 Functional differences between JP1/Software Distribution Manager and JP1/Software Distribution Client (relay system).

(b) Programs that can be used in a relay manager/system

You can use JP1/Software Distribution Manager (relay manager) or JP1/Software Distribution Client (relay system) for a relay manager/system.

You choose the one you will use during program installation.

Compared to a relay manager, a relay system has limitations, such as on the number of clients that can be managed and the available functions. To manage clients from a relay manager/system in the same manner as when JP1/Software Distribution Manager is used as the managing server, you should use a relay manager. For details about the functional differences between a relay manager and a relay system, see D.1 Functional differences between JP1/Software Distribution Manager and JP1/Software Distribution Client (relay system).

(c) Programs that can be used in a client

Only JP1/Software Distribution Client can be used as a client.