JPH0548714A - Network monitor system for isdn terminal adapter - Google Patents

Abstract

PURPOSE:To obtain the network monitor system which enables the transmission and reception state of messages of packets, converted through a network, to be understood directly and visually. CONSTITUTION:A remote monitor device is connected to the terminal adapter 5. After terminal adapters 5, and 2 and 3 are connected in remote monitor mode, state information on the packet of a layer 2 or 3 sent to and received from an ISDN network when the terminal adapter 2 or 3 is connected to an opposite-side terminal adapter 3 or 2 is sent to the remote monitor device 6 through the terminal adapter 5 in the form of a B-channel or D-channel packet. The remote monitor device interprets, rearrange, and translates the obtained information according to the transmission and reception time of the packet of the obtained packet state information of the layer 2 or 3, the kind of the packet, and a transmission and reception sequence number, and display the packet state between the terminal adapters 2 and 3 and network at the same time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network monitoring system for ISDN terminal adapters, and particularly to ISDN B
IS for translating and displaying channel 2 and layer 3 messages of D channel packets at remote locations
The present invention relates to a network monitoring method for a DN terminal adapter.

[0002]

2. Description of the Related Art Conventionally, this type of network monitoring method for ISDN terminal adapters has been used to detect packets transmitted and received at a fault occurrence point when a fault occurs in a connection control procedure or a data transfer procedure in a communication section via the ISDN network. The state of the message was monitored one by one at each fault occurrence point and the cause was pursued.

[0003]

In this conventional network monitoring system for ISDN terminal adapters, the ISD
It is not possible to simultaneously translate or display the whole or part of the message of the packet transmitted / received in the communication section via the N network while comparing.

For this reason, it is difficult to directly and visually understand the transmission / reception state of the packet message converted through the network.

It is an object of the present invention to use the ISDN B and D channel packet multiplexing services to provide IS
Status information of layer 2 and layer 3 message transmission / reception of the B channel and D channel packet in the communication section via the DN network is acquired at one location at the same time, and the packet transmission / reception time, packet type, It is to provide an ISDN network monitoring method for interpreting, comparing, organizing, translating, and simultaneously displaying the obtained information based on the transmission / reception sequence number.

[0006]

The network monitoring method of the ISDN terminal adapter according to the present invention is based on ISDN B
By using the packet multiplexing service on the channel and the D channel, the state information of the transmission and reception of the B channel and the layer 2 and layer 3 messages of the D channel packet in the communication section via the ISDN network is acquired at one location at the same time. Based on the packet transmission / reception time, packet type, and transmission / reception sequence number, it has the functions of interpreting, comparing, organizing, translating, and displaying the obtained information.

Further, the present invention is a terminal adapter which is connected to an ISDN network and carries out data transmission by circuit switching or packet switching connection, which is used during transmission / reception and communication.
In a network monitoring method for receiving, interpreting, and translating a B channel of a DN and a message of a layer 2 or layer 3 packet of a D channel packet at a remote place,
A function of transmitting the packet status information including the message and time of the layer 2 and layer 3 packet of the ISDN B channel and D channel packet used during transmission / reception and communication, and the terminal communication data,
And a terminal adapter having a remote control function for remotely controlling time setting, selection and restriction of packet state information, and the use of a packet multiplexing service to simultaneously transmit the information using B channel and D channel packets. And a remote monitoring device having a function of receiving and processing packet state information.

[0008]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. Terminal adapters 2, 3 and 5 having a remote monitor function are connected to the ISDN network. The terminal adapter 2 includes a terminal 1 and a terminal adapter 3.
A terminal 4 is connected to. The terminal adapter 5 is connected to a remote monitor device having a function of interpreting, organizing, translating, and displaying the obtained information based on the time of packet transmission / reception, the type of packet, and the transmission / reception sequence number. . In addition, terminal adapters 2, 3,
The ISDN line to which 5 is connected has a packet multiplexing contract for B channel and / or D channel packets. According to the packet multiplexing service, the remote monitor device 6 connects to the terminal adapters 2 and 3 through the terminal adapter 5 with the two types of logical channel numbers by using the subaddress and the secret code dedicated to the remote monitor by the packet exchange of the B channel or the D channel. If the subaddress and PIN are different, the terminal adapters 2 and 3 do not receive the call in the remote monitor mode. After connection in the remote monitor mode, when the terminal adapter 2 or terminal adapter 3 connects to the other terminal adapter 3 or 2, respectively, the state information of the layer 2 or layer 3 packet transmitted / received to / from the ISDN network is displayed. The B channel or D channel packet is transmitted to the remote monitor device 6 through the terminal adapter 5. The remote monitor device interprets, arranges and translates the obtained information based on the time when the packet of the packet state information of the obtained layer 2 and layer 3 is transmitted / received, the type of the packet, and the transmission / reception sequence number, and translates the information. The packet status between the adapters 2 and 3 and the network is displayed simultaneously.

FIG. 2 is an internal block diagram showing the processing of the terminal adapter 2. Since the internal configuration of the terminal adapter 3 is the same as the internal configuration of the terminal adapter 2, the terminal adapter 2 will be representatively described.

The terminal adapter 2 with a function for remote monitoring has a clock unit 11 and a remote control unit 14 for controlling the remote mode of the terminal adapter, such as checking the personal identification number. Adjust accurately by remote control or manually before communication. In addition, the terminal adapter 2 with a function for remote monitoring is used for packet layers 2 and 3
Layer 2 and 3 message acquisition unit 13 that takes in the message of LAP-B protocol unit 8 and D channel protocol unit 9 from the LAP-B protocol unit 8 and D channel protocol unit 9, and uses the B channel or the D channel packet as the packet state information together with the clock information. It has a remote monitor information control unit 12 for transmitting to the terminal adapter 5. Data from the terminal 1 includes a terminal interface (DTE I / F) 7, a B channel speed conversion section and a LAP-B protocol section 8, which are used when communication is performed by circuit switching or B channel packet switching. 931 D channel protocol unit 9 used for call control or D channel packet exchange, S / T interface (S / T interface) which is an interface unit at the S / T point
Data transfer is performed by using the I / F) 10.

FIG. 3 is a block diagram showing an example of packet status information between the terminal adapters 2 and 3 and the network in this embodiment.

[0013]

As described above, the ISDN of the present invention is used.
Network monitoring method of terminal adapter is ISD
Using the packet multiplexing service on the N B channel and the D channel, the B channel in the communication section through the ISDN network and the state information of the transmission and reception of the layer 2 and layer 3 messages of the D channel packet are used as the communication data. Separately, it was acquired at one place at the same time, and the time when the packet was sent and received,
It has a function to interpret, organize, translate, and display the obtained information based on the packet type and transmission / reception sequence number, so that the transmission / reception status of the message of the packet connected via the network can be directly Visually easy to understand.

Further, since the terminal adapters 2 and 3 have the function of transmitting the packet status information to the remote monitor side by limiting only the necessary information to the remote monitor side by the remote control and the function of adjusting the clock, the amount of information is large. It also solves the problem that the remote monitor cannot process and the problem of the clock misalignment.

[Brief description of drawings]

FIG. 1 is a block diagram of a remote monitor according to the present invention.

FIG. 2 is a diagram showing an internal configuration of a terminal adapter.

FIG. 3 is a block diagram of packet status information.

[Explanation of symbols]

1,4 Terminal 2,3,5 Terminal Adapter 6 Remote Monitor 7 DTE I / F 8 B Channel Speed Converter and LAP-B Protocol 9 D Channel Protocol 10 S / T I / F 11 Clock 12 Remote Monitor Information Control unit 13 Layer 2, 3 message acquisition unit 14 Remote control control unit

Claims (2)

[Claims] 1. State information of transmission / reception of layer 2 and layer 3 messages of a B channel and a D channel packet in a communication section through an ISDN network using a packet multiplexing service on the ISDN B channel and D channel. ISDN terminal with the function of simultaneously acquiring and transmitting information at one place, and interpreting, comparing, organizing and translating the obtained information based on the time when the packet is transmitted and received, the type of packet, and the transmission and reception sequence number. Network monitoring method for adapters. 2. A terminal adapter which is connected to an ISDN network and performs data transmission by circuit switching and packet switching connection, and is used for originating and terminating calls, ISDN B channel used during communication, and layer 2 and layer 3 of D channel packet. In a network monitoring system that receives, interprets, and translates packet messages at a remote location, ISDN B channel and D channel packet layer 2 and layer 3 packet messages and times used during transmission / reception and communication, Function to send packet status information with other data separately from terminal communication data,
And a terminal adapter having a remote control function for remotely controlling time setting, selection and restriction of packet state information, and the use of a packet multiplexing service to simultaneously transmit the information using B channel and D channel packets. A network monitoring system for an ISDN terminal adapter, which comprises a remote monitoring device having a function of receiving and processing packet status information.