Method and apparatus for determining alternate routes in a netwo

Details Method and apparatus for determining alternate routes in a netwo Method and apparatus for determining alternate routes in a netwo

1996-09-13

1999-09-14

Ton, Dang

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

370237, H04L 1250

Patent

active

059533129

ABSTRACT:
A system for selecting an alternate route in a network using a connection-oriented protocol. The system is implemented in response to inadequate resources to a normal next hop node for a requested connection. The system may also be implemented if the normal next hop node is not capable of supporting the requested data flow. An alternate next hop node is identified having adequate resources for the requested connection. The connection request is then sent to the alternate next hop node. A refusal message is generated if the connection request sent to the alternate next hop node fails. The identification of alternate next hop nodes having adequate resources is performed on a limited basis.

REFERENCES:
patent: 4991204 (1991-02-01), Yamamoto et al.
patent: 5067127 (1991-11-01), Ochiai
patent: 5657320 (1997-08-01), Russ et al.
patent: 5671215 (1997-09-01), Folar
Experimental Internet Stream Protocol, Version 2 (ST-II), Network Working Group Request for Comments: 1190, CIP Working Group, Oct. 1990.
Internet Stream Protocol Version 2 (ST2) Protocol Specification--Version ST2+, Network Working Group Request for Comments: 1819, ST2 Working Group, Aug. 1995.
Private Network--Network Interface Specification Version 1.0 (PNNI 1.0), the ATM Forum Technical Committee, af-pnni-0055.000, Mar. 1996.

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