Digi TransPort - Page 525

Configure X.25 parameters
Digi TransPort User Guide 525
Keep ISDN LAPB link activated when user sends a DISC or X.25 PAD session terminated
When this parameter is enabled, the following setting is enabled:
Wait x milliseconds before attempting to establish the LAPB link after B-channel becoming
active
This parameter sets the length of time (in milliseconds), that the LAPB instance will wait from
an ISDN B-channel becoming active before attempting to establish a LAPB connection, such as
the length of time for which the LAPB instance stays passive. The default is 0, as most ISDN
networks allow CPE devices to initiate a LAPB link. If your ISDN network does not permit CPE
devices to initiate the LAPB link you should set this parameter to a value that allows the
network sufficient time to establish the LAPB link.
Use as x a calling party number when making ISDN calls
This is Calling Line Identification. The router will only answer calls from numbers whose
trailing digits match what is entered in this field. The line the router is connected to must have
CLI enabled by the telecoms provider, and the calling number cannot be withheld.
Async Mux 0710 Parameters
For certain W-WAN modules LAPB is used to perform multiplexing of serial channels. If using
LAPB for X.25 over ISDN or serial then these settings should be ignored. These settings should
not be changed unless under the instruction of technical support.
Mux 0710 mode
If enabled, configures the LAPB instance to be used for multiplexing of serial channels instead
of X.25.
Mux mode
Controls the multiplexing mode.
DLC #
The data link channel number to use for this virtual ASY port.
ASY port
The physical ASY port over which to multiplex.
Virtual ASY port
The virtual ASY port number that this LAPB instance will multiplex over the physical port.