Combined terminal adapter for SMDS and frame relay high speed da

Details Combined terminal adapter for SMDS and frame relay high speed da Combined terminal adapter for SMDS and frame relay high speed da

1992-03-10

1993-10-05

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 942, 370 99, 3701101, 36523003, H04L 1256

Patent

active

052512070

ABSTRACT:
A terminal adapter interfaces between a Data Terminating Equipment (DTE) and either a Frame Relay or a Switched Multimegabit Data Service (SMDS) telecommunications network so that the type of network over which the DTE is communicating is transparent to the DTE. The terminal adapter performs mapping from one protocol to another so that a native frame relay DTE can access an SMDS network and so that a native SMDS DTE can access a frame relay network. The address mapping method performed by the terminal adapter uses a parallel table look-up technique which reduces the chance of collision (when two or more addresses hash into the same table entry), eliminates the traditional comparison function to detect a collision, and eliminates the traditional pointer technique when a collision occurs.

REFERENCES:
patent: 4998242 (1991-03-01), Upp
patent: 5056084 (1991-10-01), Corre
patent: 5142528 (1992-08-01), Kobayashi et al.
Business Communications Review, Sep. 1991, pp. 59-63; "SMDS vs. Frame Relay: An Either/or Decision ?".
Data Communications, Apr. 1991, pp. 105-108, 110; "SMDS: The Beginning of WAN Superhighways."
Telephonys Transmission Special, Nov. 1990, pp. 17, 18, 22; "RHCs to open data spigot with SMDS and frame relay."
AT&T Technology, vol. 6, No. 1, 1991; pp. 6-11, "Metropolitan Area Networks-Data Transport Highways".
Tenth Annual International Phoenix Conference on Computers and Communications, pp. 546-551, Mar. 1991: "Interworking Between Frame Relay and ISDN".

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