Integration with X.25 Networks

uLinga for X25 allows your application to communicate with X.25 devices over IP infrastructure. Available for HPE Nonstop, Windows, Linux and POSIX systems.

uLinga for X.25

uLinga for X25 implements the XOT (X.25 over TCP/IP) protocol developed by CISCO and supports standard HPE NonStop APIs, allowing existing X25AM PTP applications to run without modification.

What Makes It Special


Modern X.25 support using your existing IP infrastructure


Boost flexibility through use of standard IP routing techniques

Minimal Risk

Minimise integration risk and effort and simplify network management


Standard Protocols

uLinga for X25 implements the XOT (X.25 over TCP/IP) protocol developed by Cisco Systems that enables X.25 packets to be encapsulated and routed through TCP/IP connections instead of LAPB links. The protocol is defined by RFC 1613.


How it works

The higher communication layers preserve the X.25 flows expected by your application, and at the lower layers, the communications utilise your existing IP backbone infrastructure, and so can be routed by standard IP routers.


Standard APIs

Standard APIs are supported for the platform: for example on HPE NonStop, applications using the X25AM PTP interface can all run without modification. Other application transport mechanisms are also supported, including standard file system I/O, and TCP/IP.

Features of uLinga for X.25

Features of our Product

Both browser-based and command-line configuration/ management supported.

Online Configuration

Web browser interface utilising HTML 5 and Web Sockets, with no client software to install


Optional use of Port numbers for addressing of endpoints


Built in tracing facility & standard logging support

Online Management

Interactive command line interface, with support for obey/script files.

APPC Support

Both Switched Virtual Circuits (SVCs) and Permanent Virtual Circuits (PVCs) supported

Standard APIs

Support for standard APIs: On HPE NonStop, SNAX/HLS, SNAX/CRT, etc. Application connectivity via TCP/IP on all supported platforms.