Configure Protocol Switch software
Digi TransPort User Guide
567
Configure Protocol Switch software
The Protocol Switch software is available on some of the Digi TransPort models.
About the Protocol Switch software
The Protocol Switch provides X.25 call switching between the various protocols and interfaces
that may be available including:
When this optional feature is included, the device can be configured to pass X.25 calls or data
received in a TCP connection to another protocol or interface.
In addition, it is possible to specify a backup protocol or interface so if an outgoing call on one
interface fails, the backup interface is automatically tried. LAPB can be used to switch to either
ISDN or X.25 over serial, depending on the configuration of the LAPB instance chosen.
Interface / Protocol
Description
Off/None
Data is note switched from or backed-up to this protocol.
LAPD
Data is switched from or backed-up to LAPD using the X.25 service.
LAPD X
As above, but the actual LAPD instance used is determined by the NUA.
LAPB 0
Data is switched from or backed-up to LAPB 0.
LAPB 1
Data is switched from or backed-up to LAPB 1.
LAPB 2
Data is switched from or backed-up to LAPB 2.
LAPB 0 PVC
Data is switched from or backed-up to an X.25 PVC on LAPB 0.
LAPB 1 PVC
Data is switched from or backed-up to an X.25 PVC on LAPB 1
.
LAPB 2 PVC
Data is switched from or backed-up to an X.25 PVC on LAPB 2
.
XoT
Data is switched from or backed-up to an XOT (X.25 over TCP/IP)
connection.
XoT PVC
Data is switched from or backed-up to an XOT PVC connection.
TCP stream
Data is switched from / backed-up to a TCP socket. The socket’s IP
address will be determined from the IP stream port setting.
UDP stream
This is similar to the TCP stream setting, but instead of switching onto a
TCP socket, data is switched onto a UDP socket. In the case of switching
from X.25. the effect is that a UDP frame will be sent for each packet of
X.25 data being switched.
VXN
Data is switched or backed-up to Datawire’s VXN protocol.
SSL
Datais switched or backed-up to SSL.
DialServ
Data is switched or backed-up to an analog modem via the built-in
DiaslServ daughter card.
