US6016319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communications system for transmission of datagram packets over connection-oriented networks
Assignee: Nokia of America Corp
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Filing: 1996-09-11
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Granted: 2000-01-18
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Expires: 2016-09-11
Abstract
Abstract A communications system for transporting connectionless datagrams over a connection-oriented network is arranged to remove the address resolution function and the connection setup function from a sending host and combine them in a third-party connection server in conjunction with channel management at connection-oriented routing points. The third party request protocol can be used for Classical connectionless over a connection oriented network, legacy LAN emulation and Routing Over Large Clouds.
Inventors
- 👤 Madhukar M. Kshirsagar
- 👤 Thomas F. La Porta
- 👤 David H. Shur
- 👤 Malathi Veeraraghavan
- 👤 Clark Woodworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:34
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L12/46; H04L12/4604; H04L12/4608; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5625; H04L2012/5626; H04L2012/5638; H04L2012/5645; H04L2012/5665; H04L2012/5667; H04L2012/5668
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
154 words
A method of communicating connectionless datagrams between a source node and a destination node over a connection-oriented network, said method comprising the steps of: transmitting from said source node to a connection request server coupled to said connection-oriented network a connectionless address of said destination node to signal a request to communicate with said destination node; in response to said request received by said connection request server, establishing from said connection request server a connection-oriented virtual channel between said source node and said destination node using third-party control; assigning a virtual channel identifier to said connection oriented virtual channel; transmitting said virtual channel identifier from said connection request server to said source node; segmenting said connectionless datagrams into one or more appropriate size connection-oriented cells, each of said cells including said virtual channel identifier; and transmitting said one or more cells from said source node to said destination node on said connection-oriented virtual channel.
Claim 2
Independent Claim
154 words
A method of communicating connectionless datagrams between a source node and a destination node over a connection-oriented network, said method comprising the steps of: transmitting from said source node to a connection request server coupled to said connection-oriented network a connectionless address of said destination node to signal a request to communicate with said destination node; in response to said request received by said connection request server, establishing from said connection request server a connection-oriented virtual channel between said source node and said destination node using third-party control; assigning a virtual channel identifier to said connection oriented virtual channel; transmitting said virtual channel identifier from said connection request server to said source node; segmenting said connectionless datagrams into one or more appropriate size connection-oriented cells, each of said cells including said virtual channel identifier; and transmitting said one or more cells from said source node to said destination node on said connection-oriented virtual channel.
Claim 3
Dependent Claim
159 words
A communications system for communicating connectionless datagrams over a connection-oriented network, said system comprising: a source node; a destination node; at least one connection request protocol server for receiving a request from said source node to resolve a connectionless address of said destination node into a connection-oriented address of said destination node and for establishing a connection-oriented virtual channel between said source node and said destination node for communicating said connectionless datagrams using a third party connection protocol; at least one connection server connected to said at least one connection request protocol server for determining an end-to-end route between said source node and said destination node; and one or more channel servers, each of said channel servers connected to one or more of said connection servers on one end and a respective connection-oriented switch on another end, each of said channel servers for determining if said respective switch can maintain a required bandwidth on said connection oriented virtual channel.
Claim 4
Dependent Claim
159 words
A communications system for communicating connectionless datagrams over a connection-oriented network, said system comprising: a source node; a destination node; at least one connection request protocol server for receiving a request from said source node to resolve a connectionless address of said destination node into a connection-oriented address of said destination node and for establishing a connection-oriented virtual channel between said source node and said destination node for communicating said connectionless datagrams using a third party connection protocol; at least one connection server connected to said at least one connection request protocol server for determining an end-to-end route between said source node and said destination node; and one or more channel servers, each of said channel servers connected to one or more of said connection servers on one end and a respective connection-oriented switch on another end, each of said channel servers for determining if said respective switch can maintain a required bandwidth on said connection oriented virtual channel.
Claim 5
Dependent Claim
145 words
A communications system for communicating connectionless datagrams over a connection-oriented network, said system comprising: a source node; a destination node; a plurality of connection request protocol servers for receiving a request from said source node to resolve a connectionless address of said destination node into a connection-oriented address of said destination node and for establishing a connection-oriented virtual channel between said source node and said destination node for communicating said connectionless datagrams using a third party connection protocol, wherein said source node transmits said request to a first one of said plurality of connection request protocol servers; and means for broadcasting said request from said first one of said plurality of connection request protocol servers to other connection request protocol servers of said plurality of connection request protocol servers if said first one of said plurality of connection request protocol servers cannot resolve said request.
Claim 6
Dependent Claim
145 words
A communications system for communicating connectionless datagrams over a connection-oriented network, said system comprising: a source node; a destination node; a plurality of connection request protocol servers for receiving a request from said source node to resolve a connectionless address of said destination node into a connection-oriented address of said destination node and for establishing a connection-oriented virtual channel between said source node and said destination node for communicating said connectionless datagrams using a third party connection protocol, wherein said source node transmits said request to a first one of said plurality of connection request protocol servers; and means for broadcasting said request from said first one of said plurality of connection request protocol servers to other connection request protocol servers of said plurality of connection request protocol servers if said first one of said plurality of connection request protocol servers cannot resolve said request.
References Cited (Backward Citations)
US5067123A
Cited
US5119369A
Cited
US5202885A
Cited
US5265091A
Cited
US5432777A
Cited
US5517497A
Cited
US5357508A
Cited
US5519707A
Cited
US5521917A
Cited
US5638364A
Cited
US5583862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-01-17 | 2003-07-19 | 2004-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-01-17 | 2007-07-19 | 2008-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-01-17 | 2011-07-19 | 2012-01-18 | $7700.00 | Window Closed / Lapsed |