HP 3000 Manuals HP 3000 Manuals
Defining the DTC
The following parameters are required to define each DTCused for
connection between the HP 3000 and its asynchronous devices (terminals
and printers). You can use the DTC Configuration worksheet as shown in
Figure 2-2 to record the values selected for each DTC.
DTC Name A name for the DTC, up to eight alphanumeric
characters, beginning with a letter. Each DTC
configured on the system must have a unique name.
DTC LAN Station The local station address of the DTC. The HP 2345B
Address (DTC 48) station address is printed inside the
front cover. The HP 2340A (DTC 16) station address
is printed on the label located on the upper
right-hand corner of the back panel of the DTC. The
HP J2070A (DTC 72MX) and J2062A/J2063A/J2064A (DTC
16iX/16MX/16RX) station address is printed on the
label located at the lower center of the back panel
of the DTC.
A typical LAN address looks like:
08-00-09-1A-11-11.
For DTC 16RX access to an HP 3000 in an MPE/iX
host-based management environment, use the value
00-00-00-00-00- 00 as the DTC 16RX LAN address.
Configuration of the DTC 16RX is done on the HP
9000 host using DTC 16RX Manager.
DTC Node Name A fully qualified node name of the DTC, in the form
nodename.domain.organization, where each field can
contain 16 or fewer characters (alphanumeric,
underscores, or hyphens). The first character of
each field must be alphabetic.
Assign meaningful node names. For example,
ACCTS.IXNET.ACCTG and PAY.IXNET.ACCTG are
meaningful names for two nodes on the same Local
Area Network (LAN) within the accounting
department. One node (ACCTS.IXNET.ACCTG) is used
by the accounts staff. The other node
(PAY.IXNET.ACCTG) is used by the payables staff.
The domain field is the same because the nodes
belong to the same network. The organization field
is the same because the nodes belong to the same
internetwork.
DTC IP Address The internet protocol (IP) address of the DTC. The
(optional) IP address is optional. It is used if your HP 3000
is configured as part of a network and you want the
DTC to be able to respond to PING/ iX
requests.
An IP address is made up of a network portion and a
node portion. The address is formed as four fields
of decimal numbers where each number is a value
ranging from 000 to 255.
The following shows examples of three classes of IP
addresses:
Table 2-2.
-------------------------------------------------
| | |
| Class A: | nnn xxx.xxx.xxx |
| | |
-------------------------------------------------
| | |
| Class B: | nnn.nnn xxx.xxx |
| | |
-------------------------------------------------
| | |
| Class C: | nnn.nnn.nnn xxx |
| | |
-------------------------------------------------
where nnn represents the network portion and xxx
represents the node portion of the address. The
class of the IP address is determined by the value
of the left most group of nnn and has the following
ranges:
Table 2-3.
-------------------------------------------------
| | |
| Class A: | 001-126 |
| | |
-------------------------------------------------
| | |
| Class B: | 128-191 |
| | |
-------------------------------------------------
| | |
| Class C: | 192-223 |
| | |
-------------------------------------------------
Network and node portions of all zeroes or 255 are
not allowed for DTC addresses. These are special
values. All devices configured with the same
network portion are considered to be on the same
network. The node portion must be unique for all
nodes on a network.
You can obtain a Class B or Class C IP address
from:
Table 2-4.
---------------------------------------------------
| | |
| Government Systems, Inc. | |
| ATTN: Network Information | |
| Center 14200 Park Meadow | |
| Drive Chantilly, VA 22021 | |
| | |
---------------------------------------------------
| | |
| (800) 365-3642 or | FAX: (703) 802-8376 |
| | |
---------------------------------------------------
For DTC 16RX access to an HP 3000 in an MPE/iX
host-based management environment, the IP address
of the DTC 16RX is configured using the DTC 16RX
Manager on the HP 9000 host and not on the HP 3000.
Any value entered for the DTC 16RX in NMMGR will be
ignored.
DTC Cards (or DTC The number and types of connector cards in the DTC.
Boards) (The cards are also referred to as boards.) DTC 16
can have up to 2 asynchronous cards and 1 DTC/X.25
Network Access card, DTC 48 up to 6 cards, and DTC
72MX up to 4 cards.
DTC 16iX/16MX/16RX has its two port connectors
built directly onto its backplane for support of up
to 16 asynchronous devices. It does not have
removable cards; you do not specify the number or
type of cards for a DTC 16iX/16MX/16RX.
The valid card types are:
Table 2-5.
---------------------------------------------------
| |
| For DTC 16 and DTC 48: |
| |
---------------------------------------------------
| | |
| D M | for direct connect cards (up to 8 ports |
| X | per card), for modem connect cards (up |
| | to 6 ports per card), for DTC/X.25 |
| | Network Access cards (for connection). |
| | |
---------------------------------------------------
| |
| For DTC 72 MX: |
| |
---------------------------------------------------
| | |
| L A | for the LAN card, pre-installed in slot |
| X | 0 for asynchronous processor boards (up |
| | to 24 ports per card for direct and |
| | modem connections) for DTC/X.25 Network |
| | Access cards (for X.25 connection). |
| | |
---------------------------------------------------
DTC Event Logging For each DTC, logging class 1 logs catastrophic
events and will always be enabled. Class 2 logs
critical events; class 3 logs non-critical events;
classes 4 and 5 log informative events and class 6
provides statistical information. It is
recommended that you only enable classes 4 through
6 when you encounter problems, because they will
generate and log a substantial number of events.
The log files could use a significant amount of
disk space.
Event logging classes do not apply for access to an
HP 3000 in an MPE/iX host-based management
environment using a DTC 16RX; any values entered in
these fields for the DTC 16RX will be ignored.