Host Connections
4.1.3.2X.25 Line Description
X.25 information is transmitted in packets. These packets consist of a header that contains
the control data and the destination address, and the data field that is transparent to the
network.
The X.25 line description, consists of a screen in which packet parameters are defined to
ensure the smooth flow of information. The limitations imposed on the size of packets and
on the line communication, is affected by the line type.
NOTE:
Some of the parameters' definitions depend on your network subscription and the
options you want to make use of. The chosen values should match the ones in the AS/400
System line description.
If the Sync line was defined as X.25, an X.25 Parameter Configuration menu will appear.
Define the parameters, referring to the parameter descriptions below, and press
ENTER.
A S / 4 0 0 X . 2 5 C O M M U N I C A T I O N
Line 2
Packet level sequence numbering ( Modulo 8 0 , Modulo 128 1 ) 1
Link window size . . . . . . ( 1 - 7 ) . . . . . . . . . . 7
Flow control negotiation . . ( not permitted 0 , permitted 1 ) 1
Manual options . . . . . . . ( not all 0 , all 1 ) . . . . . . 1
Number of retries . . . . . . ( 000 - 250 ) . . . . . . . . . 010
Link level - transmit timeout ( 01 - 60 sec ) . . . . . . . 03
Diagnostic code format . . . ( SNA 0 , ISO 1 ) . . . . . . . 0
DTE/DCE . . . . . . . . . . . ( DTE 0 , DCE 1 ) . . . . . . . 0
Line speed ( for DCE only ). . ( 1050 0 , 1200 1 , 2000 2 ,
2400 3 , 4800 4 , 9600 5 ,
19200 6 , 38400 7 ) . . . . . . 0
P=Help F1=
KeysHelp PRINT=Hardcopy F7=Previous F8=Next F3=Exit
Packet Level Sequence
Numbering
The packet sequence numbering scheme used by your
network, this will depend on your X.25 network subscription.
The default value =Modulo 128, refer to Control
Negotiations.
[0] = Modulo 8
[1] = Modulo 128
Link Window Size
The maximum number of frames that can be sent by the
Controller without receiving an acknowledgment from the
network. valid retries are (1-7).
Default Values = 7
Flow Control
Allows the user to change the Packet Size and the Packet
4
Summary of Contents for 3000 Series
Page 1: ...Series 3000 STK3494 3494 User s Manual ...
Page 2: ......
