Configuring Systems for Terminals, Printers, and Other Serial Devices (32022-90057)

Introduction

Typical Network Configurations

Chapter 1

Typical Network Configurations

NOTE If you are configuring X.25 networking capabilities on a HP e3000 Series 900 computer

using host-based network management, use Configuring and Managing Host-Based

X.25 Links instead of this manual to configure DTCs and DTC connections.

Use this manual for directions on how to perform Dynamic/Automatic Configuration or

to execute a DTS shutdown or restart.

The DTC makes communication possible across a wide variety of network

configurations. The DTC provides the following:

• Asynchronous connections to HP 9000s and third-party ARPA nodes via Telnet.

• Access to X.25 networks.

• Access to HP e3000s via Telnet from HP9000’s or third party ARPA nodes.

The networking environment dictates not only the connection options, but also the type

of network management used.

When an HP e3000 computer is set up so that it can configure and manage DTCs, the

system is configured for Host-Based Management. This method can be used to allow

you access to HP e3000 computers or access from the DTC ports to HP 9000s and

third-party ARPA nodes.

When an OpenView Windows Workstation is used to configure and manage DTCs, the

HP e3000 system is using PC-Based Management. This method can also be used to

allow you access to HP e3000 computers or access from the DTC port to HP 9000s and

third-party ARPA nodes. This method provides the additional capability to the DTCs to

allow other ARPA nodes to communicate with the HPe3000 via the DTC’s Telnet Access

Card.

If you have installed the latest Release 7.0 or 7.5 DTS patches, both Host-Based and

PC-Based Management provide all of the network connections described in the

following pages, with the exception that Telnet/IX Access described below is available

only when using PC-Based Management.

If X.25 communications is required, then either PC-based Management or

Host-based X.25 Manager can be used.

Host-Based Management

When an HP e3000 computer is using Host-Based Management, configuration

and control information is maintained on the host, and downloaded from the

host to each of the DTCs controlled by the host. The host system is also used to

perform any maintance functions such as Resets, Uploads, and to gather

connection information from the DTC. The HPe3000 host must reside on the

same LAN segment as the DTCs which it manages, ie., no routers are allowed

between the Management host and the DTCs the host is managing.