KR0181110B1 - Tei management method of isdn - Google Patents

Abstract

The present invention relates to a TEI (Terminal Endpoint Identifier) management method of a general information communication network system, and more particularly, to a TEI management method for efficiently processing information required for removing and retrieving an allocation of a TEI from a management layer.

In the integrated information network system, it is possible to more efficiently provide communication network setting by managing information necessary for subscriber search, removal, and assignment of TEIs to the management layer.

Description

TEI Management Method of Integrated Information Communication Network System

1 is a block diagram of a system according to the present invention.

2 is a schematic diagram of a TEI table for carrying out the present invention.

3 is a flow chart for carrying out the present invention.

* Explanation of symbols for main parts of the drawings

10: central processing unit 20: ROM

30: RAM 40: MPCC

50: dual port RAM 60: subscriber interface circuit

70: digital network interface circuit

The present invention relates to a TEI (Terminal Endpoint Identifier) management method of a general information communication network system, and more particularly, to a TEI management method for efficiently processing information necessary for removing an allocation search of a TEI in a management layer.

The management layer recommended by CCITI specifies the information necessary for the allocation, retrieval and removal of TEI management.

Among the layers, layer 2 is a layer for establishing a data link between subscribers, and a management layer requesting TEI allocation establishes a data link by searching for and assigning an appropriate TEI value to the layer. In the management layer, only the information on the allocation, retrieval, and removal of the TEI is prescribed, but its processing procedure and management method are not defined.

Accordingly, an aspect of the present invention is to provide a TEI management method for managing information required for allocating, retrieving, and removing TEI efficiently in a management layer in a comprehensive information communication network system.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a system block diagram for carrying out the present invention.

A central processing unit 10 for controlling the overall operation of the system according to a predetermined program;

A ROM 20 connected to the central processing unit 10 to store program data for TEI management;

RAM 30 for temporarily storing data generated when the program is executed,

An MPCC (hereinafter referred to as MPCC) 40 for processing input / output data for performing a TEI management function under the control of the central processing unit 10;

Dual port RAM (50) for storing transmission and reception information under the control of the MPCC (40),

A subscriber interface circuit 60 for interfacing information between the subscriber and the terminal,

It consists of a digital network interface circuit 70 for interfacing to exchange information between the terminal and the digital network.

2 is a configuration diagram of a TEI table according to the present invention.

3 is a flowchart according to the present invention,

A first step of receiving a TEI allocation request message from the management layer and finding a free TEI number and a DLCI (Data Link Connection Identifier) number by the requested subscriber number;

A second step of freeing the state of the TEI table and the DLCI table by checking the TEI when finding the free DLCI number after finding the free TEI number in the first step;

A third step of making the TEI table state busy and storing related information when the TEI number and the DLCI number obtained in step 1 are found;

And a fourth process of allocating, searching for, and removing related information stored in the third process.

Based on the above-described configuration, an embodiment of the present invention will be described in detail.

When a message related to TEI allocation from a subscriber is input through the subscriber interface circuit 60, the MPCC 40 notifies the central processing unit 10 that a message related to TEI has been received and sends a TEI related message to the dual port RAM 50. Save it.

In step 3a, the TEI assignment message is received with reference to the received subscriber number. In step 3b, it is checked whether there is a TEI number having a free TEI table as shown in FIG.

If there is a free TEI number in step (3b), it is checked in step (3c) whether the DLIC table state is free.

At this time, if a free TEI number is found but the free DLCI number is not found, it is determined that TEI allocation has failed and the TEI table is checked in step 3d.

After checking whether there is a free TEI number in step 3f, if there is a free TEI number, the corresponding TEI / DLCI table is made free and the allocation procedure is completed.

However, if there is a TEI number and a DLCI number, which are free in step (3b-3c), in step (3g), the state of the TEI table is made Busy, the state of the DLCI table is set to ø1, and step (2h) is performed. In step (2h), the TEI is allocated, searched, and removed.

As described above, since the information required for removing the TEI allocation search for the management layer is managed for each subscriber in the integrated information communication network system, the communication network setting can be provided more efficiently.

Claims (1)

A TEI management method of an integrated information network system, comprising: a first step of finding a free TEI number and a DLCI number by a requested subscriber number by receiving a TEI allocation request message from a management layer; and a TEI number free from the first step If a second DLCI number is not found after finding the free DLCI number, the second step is to check the TEI to free the state of the TEI table and the DLCI table; and if the TEI number and the DLCI number are found in the first step, the TEI table state is busy. And a fourth process of allocating, retrieving, and removing related information stored in the third process.