ACC X.25 Protocol User's Guide

ZX25D X.25 Protocol Driver
Configuration
Chapter 334
poll/select The ‘POLL’ and ‘SELECT’ parameters for the ZCOM
terminal definition. These are used to specify:
• whether the link acts as a DTE or DCE,
• whether to use the 1980 or 1984/1988 X.25
standard,
• the maximum L3 incoming packet size,
• whether or not to reset L2 if CTS or DCD is
dropped,
• the T1 and T2 timeout values,
• the frame level window size, and
• the N2 retry limit.
The cnfg parameters may be specified either by using
predefined keywords (e.g., X25_LINK_DTE_400) or by
using two hexadecimal values. Refer to the section
“Configuration Parameters Definition” below for more
information.
appl. no. For the X.25 link terminal to be recognized by the ACC
X.25 subsystem, the value ‘10’ must be entered as the
application number.
inst. no. Not relevant for an X.25 link terminal.
brch. no. Not relevant for an X.25 link terminal.
wkst. no. Not relevant for an X.25 link terminal.
hunt. no. Must be set to zero.
call For a DTE - This is the (optional) local subscription
address.
For a DCE - This is the subscription address of the
remote system on this physical link.
name Choose a meaningful description of the X.25
subscription, preferably including the local
subscription address. This field is used in some
ZMNTR displays.
no_autostart Used to prevent automatic startup of the X.25 link
(HDLC/LAP-B).