US 6,487,168 B1 · Static switched virtual circuits in a connection oriented network

Abstract

A system for establishing static SVCs (i.e. permanent SVCs) whereby the results of the signaling/routing protocol generated when the network is first brought up are stored in a ‘permanent SVC’ memory. The results of the signaling/protocol that were previously stored are restored from memory in the event the connections must be re-established again. The connections are restored from memory without the need to execute the signaling/routing algorithms and protocols again. Use of the signaling/routing protocols yields the same connections that were already stored previously in the memory from when the connections were originally established. The system of the present invention is applicable to any connection-oriented network that utilizes signaling to establish connections between network users. The signaling and routing algorithms and protocols would not need to be run for every connection request. Rather, the parameters are retrieved from permanent SVC memory and configured into the switch saving considerable amounts of time.

Claims16

Dependent claims

In a connection oriented network, a method of establishing static Switched Virtual Circuits (SVCs) originated from an SVC originator, said method comprising the steps of:

generating, on said SVC originator, a specific information element directing a next switch along the connection route to create a static SVC;
transmitting said specific information element, along with a connection request message to the next switch along the connection route;
performing, on the next switch, signaling/routing algorithm and protocol functions so as to yield a set of connection results;
storing said set of connection results in a permanent SVC memory in said switch;
forwarding said connection request message including said specific information element to the next switch along said connection path;
and
re-establishing a static SVC connection from said permanent SVC memory without the use of said signaling/routing algorithm and protocol in the event of a static SVC failure.

4 more elements

Dependencies are inferred from the claim text.

Static switched virtual circuits in a connection oriented network

Life of this patent

Static switched virtual circuits in a connection oriented network

Life of this patent

Abstract

Claims16