Kentrox AI296 - Manual (Page 32)

AI296 Version 9.8x User’s Guide
Product Description: Typical Applications
1-16
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.
Figure 1-8 X.25 to TCP/IP Application
Figure 1-8 illustrates the following events:
z The OSS sends X.25 calls to AIswitch.
z AIswitch converts X.25 calls to TCP/IP calls and sends them over the router
network.
z The router network carries the TCP/IP calls to AIfocus TM .
z AIfocus sends the TCP/IP calls over the IRB to AI296.
z Based on the AI198 routing alias, AI296 converts the TCP/IP calls to X.25 calls.
z AI296 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:
z An IRB-connected line card in the same chassis, such as another AI296 or an
AI193-TX
TM
z A locally connected TCP/IP host
z A 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.
AIswitch
Operating
Support System
X.25 NE
X.25 NE
X.25 NE
IRB
AIfocus AI296
AIswitch
TCP/IP Network
X.25
TCP/IP X.25