KR970068328A - Router devices in Asynchronous Transfer Mode (ATM) networks - Google Patents

Abstract

The present invention relates to an ATM router in a communication network using an asynchronous transfer mode (ATM) used for data communication. The ATM router has a cell-based transmission capability of an ATM communication network, which is a high- A DS1E ATM router device that performs multi-point interconnection of LANs, which are existing computer communication networks using the TCP / IP protocol, using the virtual circuit (VC) setting capability, and a routing function to allow the terminals on the LAN to communicate with each other .

Description

Router devices in Asynchronous Transfer Mode (ATM) networks

Since this is a trivial issue, I did not include the contents of the text.

FIG. 1 is a block diagram showing a DS1E class ATM (Asynchronous Transfer Mode) router apparatus constructed according to the present invention. FIG. 2 is a diagram showing a configuration and a data flow relationship of a protocol processed by the DS1E class ATM router apparatus shown in FIG. Diagram.

Claims (9)

A DS1E class ATM router apparatus for providing a multipoint interconnection function of a distributed computer communication network, a host computer, a personal computer, etc., comprising: an ATM matching unit connected to an ATM communication network and performing an ATM cell and an ALL5 packet transmission / A LAN matching unit connected to the LAN and performing a medium access control and an Ethernet frame transmission / reception function; a system controlling unit connected to the ATM matching unit and the LAN matching unit, storing key parameters and data, routing and system operation of IP datagrams And a system control unit for performing a management function. The DS1E-class ATM router apparatus according to claim 1, wherein the ATM matching unit includes an AMT matching unit, an ATM layer processing unit, an AAL processing unit, a control memory, and a packet memory. The method of claim 1 or 2, wherein the ATM matching unit constructs an IP datagram in the form of an AAL5 packet and transmits and receives the LLC datagram, and performs LLC / SNAP header processing to indicate that the data content of the AAL5 packet is an IP datagram To the DS1E-class ATM router device. The DS1E-class ATM router apparatus according to claim 1, wherein the system control unit comprises a CPU, a control logic unit, an EPROM, a system memory, a timer, and an operation terminal matching unit. The system of claim 1 or 4, wherein the system control unit performs a system control and an IP datagram routing function according to a program stored in the EPROM through a CPU and a control logic unit, And performs the terminal matching function. The DS1E-class ATM router apparatus according to claim 1, wherein the LAN matching unit is redundantly connected to an Ethernet control unit and a system memory included in the system control unit. The system of claim 1 or 6, wherein the LAN combiner unit is connected to a LAN via a separate LAN transceiver to an Ethernet medium attachment interface (AUI) through an Ethernet controller to perform a medium access control function, And a transmission / reception function of an Ethernet frame is performed using a shared system memory. The system control method according to claim 1 or 4, wherein the system control unit does not lose the information even when the power is turned off, and when the power supply is re-supplied, the system parameters And a non-volatile backup memory for storing routing data. 6. The system of claim 5, wherein the operation terminal matching unit of the system control unit not only manages the local operation at the operating terminal but also performs the Telent function and the TCP / IP protocol processing to perform the operation management function in any computer connected to the LAN through the LAN matching unit Based on the result of the comparison. ※ Note: It is disclosed by the contents of the first application.