Kentrox AI296 manual To TCP/IP Application, X.25 to TCP/IP Application

AI296 Version 9.8x User’s Guide

Product Description: Typical Applications

X.25 to TCP/IP Application

Figure 1-8 illustrates a common X.25 to TCP/IP application. X.25 network elements are connected to a router network using a TCP/IP LAN.

AIswitch

Operating

Support System

X.25

TCP/IP Network

AIswitch

TCP/IP

IRB

AIfocus AI296

X.25 NE

X.25 NE

X.25 NE

X.25

Figure 1-8 X.25 to TCP/IP Application

Figure 1-8 illustrates the following events:

zThe OSS sends X.25 calls to AIswitch.

zAIswitch converts X.25 calls to TCP/IP calls and sends them over the router network.

zThe router network carries the TCP/IP calls to AIfocusTM.

zAIfocus sends the TCP/IP calls over the IRB to AI296.

zBased on the AI198 routing alias, AI296 converts the TCP/IP calls to X.25 calls.

zAI296 sends X.25 calls to the attached X.25 NEs.

Like other AIswitch line cards, AI296 terminates X.25 connections and extracts the data from them. Unlike other line cards, AI296 can convert the X.25 connections to TCP/IP connections across the IRB. The ultimate destination for these TCP/IP connections may be one of the following:

zAn IRB-connected line card in the same chassis, such as another AI296 or an AI193-TXTM

zA locally connected TCP/IP host

zA remote TCP/IP host, indirectly connected to AIswitch using a router network.

When AI296 establishes a TCP/IP connection to an external device, the IP packets are exported from AIswitch by AIfocus or by an AI router.

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