Kentrox Downstream, Incoming Outgoing Asynchronous TCP/IP CallCall, AI232 Card B IP address

AI232 Version 9.6x User’s Guide

Alias and Call Routing Configuration: Overview

Overview

AI232 uses aliases to route calls across the backplane of AIswitch. Each incoming call’s routing information must match an entry in the alias table, or else the call is rejected. When AI232 is in switch mode, the alias table is stored on AI198. When AI232 is in standalone mode, the alias table is stored in AI232’s local memory. For more information about alias translation and macros, see sections Call Routing on page 7-4 and Alias Macros on page 7-19.

Figure 7-1 displays a typical call processing data flow scenario where AI232 is used. Data flow can be upstream or downstream, depending on the direction from which the data originates.

AI232 Card A IP address 172.16.30.100

			ASY
	upstream	downstream		downstream		upstream
Async					TCP

Incoming Outgoing

Asynchronous TCP/IP

CallCall

IRB

AI232 Card B IP address 172.16.30.200

ASY			upstream
upstream	downstream	downstream
TCP			Async
Incoming			Outgoing
TCP/IP			Asynchronous
Call			call to asy.4.2

Figure 7-1 Call Data Flow

In Figure 7-1, an asynchronous protocol call is coming into AI232 card A and needs to pass over the IRB and be sent out AI232 card B. Refer to the figure to follow the flow of the call.

The following events occur if the data flow is from left to right:

1.The data comes into AI232 card A as an asynchronous packet.

2.The data travels upstream and is converted into a TCP call.

3.The data starts downstream through the ASY protocol option to preserve the packetization. Refer to ASY on page 7-18 for information about the ASY protocol.

4.The data is sent out AI232 card A over TCP on the IRB.

7-2