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

68 Chapter3
Configuring DTCs Step-by-Step
Modify the Network Management Configuration File
7. Verify that the cursor is in the Retransmission count (N2) field.
Enter the value for the retransmission count as specified by your
network subscription.
8. Verify that the cursor is in the Unacknowledged frame number
(K) field. Enter the value for the number of frames that can be
transferred without acknowledgment as specified by your network
subscription.
9. Verify that the cursor is in the Modulo field. Enter the modulo value
as specified by your network subscription.
10.When you have entered all level 1 and 2 values as specified by your
subscription, press the
[Save Data] key to save the configuration.
11.Press the
[Go To Level 3] key to move to the DTC X.25 Card
Configuration — Level 3 & Miscellaneous screen.
Fields You use this screen to configure X.25 level 1 and 2 parameters for the
DTC/X.25 Network Access card being configured. You must define
these parameters for both X.25 system-to-system and PAD
connections. Ranges for configurable values are listed on the screen.
DTC Name Display only.
Card Number Display only.
Line speed The line speed for the connection. Supported speeds
for a card installed in a DTC16 are 1200, 2400, 4800,
9600, or 19200 bps. Supported speeds for a card
installed in a DTC48 or DTC72 are 1200, 2400,
4800, 9600, 19200, 48000, 56000, or 64000 bps.
Packet
Switched
Network Name The name of the network you subscribe to. Possible
network names include: DATAPAC, PSS, DATEX-P,
TRANSPAC, TYMNET, TELENET, DDN, HP PPN,
ITAPAC, LUXPAC, DATANET1, DCS, DCE,
X25PDN. (The name must be entered exactly as
shown here.)
If two X.25 systems are directly connected (for
example, if you have a cable connecting one DTC
X.25 card directly to another DTC X.25 card) one of
the two systems must be configured as DCE and the
other as DTE. To configure a card as DCE, enter DCE
in the Packet Switched Network Name field. To
configure a card as DTE, enter X25PDN in the
Packet Switched Network Name field. (Entering
DCE configures the X.25 card as a DCE at levels 2
and 3 of X.25. At level 1 it remains DTE.)