Configuring and Managing Host-Based X.25 Links - Edition 5 (36939-90054)

Chapter 1 21

Introduction

Operation

When the HP 3000 is conﬁgured to use host-based X.25 networking

conﬁgurations, the command DTCCNTRL is provided to allow operators

to start and stop X.25 system-to-system or PAD connection support,

obtain status about whether X.25 and PAD support are up, and to

dynamically change many conﬁguration parameters entered for the

DTS subsystem without rebooting the system.

System Operator (OP) capability is required to obtain status and start

and stop X.25 and PAD support. Network Administrator (NM) is

required to perform dynamic conﬁguration

Dynamic Conﬁguration

You can make many DTS changes dynamically without rebooting the

system, or resetting and redownloading the DTC. This capability is

available if you already have a valid network conﬁguration ﬁle, and

there were no errors reported by DCC during the last system reboot, or

DTS shutdown and restart. This allows you to modify the DTS

conﬁguration without impacting all the users accessing the system

through the DTC that was changed.

For more information on how to invoke dynamic conﬁguration, see

Chapter 7, “Managing Networks with DTCCNTRL,” of this manual, or

the Conﬁguring Systems for Terminals, Printers, and other Serial

Devices manual.

Automatic Conﬁguration

Host-based management also gives you the capability to add and

conﬁgure a new DTC automatically, without the need to specify most of

the detailed conﬁguration information, such as DTC cards and ldevs.

This can be done within the NMMGR utility or at the session prompt

with the command DTCCNTRL. Refer to Chapter 7, “Managing Networks

with DTCCNTRL,” for further information on using automatic

conﬁguration to conﬁgure X.25 cards. See Conﬁguring Systems for

Terminals, Printers, and Other Serial Devices manual for more

information on how to invoke automatic conﬁguration.

Obtaining Status

The DTCCNTRL Status function displays the current status of each

DTC/X.25 Network Access card installed in a speciﬁed DTC. Use the

Status function to determine whether or not X.25 or PAD support is

currently active for a DTC/X.25 Network Access card. See Chapter 7,

“Managing Networks with DTCCNTRL,” for more information on

obtaining status using DTCCNTRL.