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Patent US5914939A successfully refreshed from Google Patents.
US5914939A
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Automatic learning of network routing by exchanging route information
Assignee: Avaya Inc
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Filing: 1996-12-20
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Granted: 1999-06-22
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Expires: 2016-12-20
Abstract
Abstract Transmitting changes to its routing information by a switch node to other switch nodes that are directly connected to the switch node. No information is transmitted if there has been no change in the routing information. In addition, the switch nodes each transmit their routing information at different times as determined by the identification number of the switch node. The exchange of routing information is controlled by a low level software layer.
Inventors
- 👤 Robert J. Serkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:09
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/64; H04Q3/66; H04Q2213/00; H04Q2213/1305; H04Q2213/13054; H04Q2213/13141; H04Q2213/13204; H04Q2213/13209; H04Q2213/13342; H04Q2213/13353
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
213 words
A method of exchanging routing information within a telecommunication switching system having a plurality of switch nodes interconnected by a plurality of groups of communication links and each of the plurality of switch nodes has an unique identification number, comprising the steps of: transmitting every predefined period of time by each of the plurality of switch nodes routing information of each of the plurality of switch nodes to only a set of ones of the plurality of switch nodes directly connected by ones of the plurality of groups of communication links to each of the plurality of switch nodes with the predefined period of time being modified by the unique identification number of each of the plurality of switch nodes wherein the routing information defines individual groups of communication links from each of the plurality of switch nodes for communication with individual ones of the plurality of switch nodes and only routing information that had changed since the last transmission period is transmitted including both new and deleted routing information; receiving by each of the plurality of switch nodes only routing information of each of the set of ones of the plurality of switch nodes; and updating the routing information of each of the plurality of switch nodes with the received routing information.
Claim 2
Independent Claim
213 words
A method of exchanging routing information within a telecommunication switching system having a plurality of switch nodes interconnected by a plurality of groups of communication links and each of the plurality of switch nodes has an unique identification number, comprising the steps of: transmitting every predefined period of time by each of the plurality of switch nodes routing information of each of the plurality of switch nodes to only a set of ones of the plurality of switch nodes directly connected by ones of the plurality of groups of communication links to each of the plurality of switch nodes with the predefined period of time being modified by the unique identification number of each of the plurality of switch nodes wherein the routing information defines individual groups of communication links from each of the plurality of switch nodes for communication with individual ones of the plurality of switch nodes and only routing information that had changed since the last transmission period is transmitted including both new and deleted routing information; receiving by each of the plurality of switch nodes only routing information of each of the set of ones of the plurality of switch nodes; and updating the routing information of each of the plurality of switch nodes with the received routing information.
Claim 3
Dependent Claim
46 words
The method of claim 1 wherein each of the plurality of switch nodes executing a plurality of software layers and the steps of transmitting and receiving are performed by a lower one of the plurality of software layers in each of the plurality of switch nodes.
Claim 4
Dependent Claim
218 words
A telecommunication switching system for exchanging routing information with the telecommunication switching system having a plurality of switch nodes interconnected by a plurality of groups of communication links and each of the plurality of switch nodes has an unique identification number, comprising: means for transmitting every predefined period of time by each of the plurality of switch nodes routing information of each of the plurality of switch nodes to only a set of ones of the plurality of switch nodes directly connected by ones of the plurality of groups of communication links to each of the plurality of switch nodes with the predefined period of time being modified by the unigue identification number of each of the plurality of switch nodes wherein the routing information defines individual groups of communication links from each of the plurality of switch nodes for communication with individual ones of the plurality of switch nodes and only routing information that had changed since the last transmission period is transmitted including both new and deleted routing information; means for receiving by each of the plurality of switch nodes only routing information of each of the set of ones of the plurality of switch nodes; and means for updating the routing information of each of the plurality of switch nodes with the received routing information.
Claim 5
Dependent Claim
218 words
A telecommunication switching system for exchanging routing information with the telecommunication switching system having a plurality of switch nodes interconnected by a plurality of groups of communication links and each of the plurality of switch nodes has an unique identification number, comprising: means for transmitting every predefined period of time by each of the plurality of switch nodes routing information of each of the plurality of switch nodes to only a set of ones of the plurality of switch nodes directly connected by ones of the plurality of groups of communication links to each of the plurality of switch nodes with the predefined period of time being modified by the unigue identification number of each of the plurality of switch nodes wherein the routing information defines individual groups of communication links from each of the plurality of switch nodes for communication with individual ones of the plurality of switch nodes and only routing information that had changed since the last transmission period is transmitted including both new and deleted routing information; means for receiving by each of the plurality of switch nodes only routing information of each of the set of ones of the plurality of switch nodes; and means for updating the routing information of each of the plurality of switch nodes with the received routing information.
Claim 6
Dependent Claim
48 words
The telecommunication switching system of claim 3 wherein each of the plurality of switch nodes executing a plurality of software layers and the steps of transmitting and receiving are performed by a lower one of the plurality of software layers in each of the plurality of switch nodes.
References Cited (Backward Citations)
US4466060A
Cited
US5088032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-06-21 | 2002-12-21 | 2003-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-06-21 | 2006-12-21 | 2007-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-06-21 | 2010-12-21 | 2011-06-22 | $7700.00 | Window Closed / Lapsed |