Method for using an IP address-based routing protocol in an ATM environment

Patent 5673263 Issued on September 30, 1997. Estimated Expiration Date:

October 25, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Multi-protocol packet switching network
Patent #: 5425026
Issued on: 06/13/1995
Inventor: Mori

Data-transfer routing management for packet-oriented digital communication system including ATM networks
Patent #: 5440547
Issued on: 08/08/1995
Inventor: Easki, et al.

Communication network and computer network server and interface modules used therein
Patent #: 5453980
Issued on: 09/26/1995
Inventor: Van Engelshoven

General transport layer gateway for heterogeneous networks
Patent #: 5491693
Issued on: 02/13/1996
Inventor: Britton, et al.

IP bridge for parallel machines Patent #: 5544162
Issued on: 08/06/1996
Inventor: Mraz, et al.

Inventors

Application

No. 548029 filed on 10/25/1995

US Classes:

370/396, Distributed switching370/400, Having a plurality of nodes performing distributed switching370/466Converting between protocols

Examiners

Primary: Hsu, Alpus H.

Attorney, Agent or Firm

Frisone; John B., Woods; Gerald R.

International Classes

H04L 012/46
H04L 012/56

Foreign Application Priority Data

1995-03-31 EP

Abstract

A technique for permitting continued use of IP (Internet Protocol) routing protocols in an Asynchronous Transfer Mode (ATM) network is implemented in each ATM system having route-computing responsibilities. When a call setup request is received, the routing system determines, from the ATM address of the target system, whether a routing protocol must be implemented. If a routing protocol must be implemented, data in an ACN (ATM Cluster Number) field and an HN (Host Number) field in the target ATM address is read and is imported into an IP-format address. This IP-format address is used in implementing the IP routing protocol.