US5586267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for providing for automatic topology discovery in an ATM network or the like
Assignee: Constellation Technologies LLC
•
Filing: 1995-06-07
•
Granted: 1996-12-17
•
Expires: 2015-06-07
Abstract
Abstract An asynchronous transfer mode (ATM) network or the like employing a method and apparatus for automatically determining the topology of the network is described. The method and apparatus provides for each switch in the network transmitting on each of its ports link advertisement messages (without processing intervention by intermediate switches). The link advertisement messages are received by neighbor switches and forwarded to a topology manager. The topology manager constructs network topology profile information based on received link advertisement messages. Further, the topology manager is able to verify bidirection links based on the received link advertisement messages.
Inventors
- 👤 Dilip Chatwani
- 👤 Rajan Subramanian
- 👤 Winnis Chiang
- 👤 Jonathan Davar
- 👤 Ayal Opher
- 👤 Shiva Sawant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:06
CPC Classifications
H; H04; H04L; H04L45/00; H04L45/02; H04L41/00; H04L41/12; H04L41/32; H04L45/10; H04L45/42; H04L49/00; H04L49/10; H04L49/104; H04L49/105; H04L49/25; H04L49/253; H04L49/255; H04L61/00; H04L61/09; H04L61/10; H04L61/50; H04L61/5007; H04L61/5061; H04L61/5076; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L12/00; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5619; H04L2012/5625; H04L2012/5626; H04L2012/5629; H04L2012/563; H04L2101/00; H04L2101/60; H04L2101/604; H04L49/30; H04L49/3009
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
113 words
A system for communicating topology information in an ATM network, said system having: a) a central manager for receiving said topology information; b) a first switch coupled in communication with said central manager, said first switch having a switch fabric for switching ATM cells through said first switch and for translating headers of said ATM cells; c) a device coupled with a first port of said first switch to communicate an ATM cell to said first switch, said ATM cell being switched through said first switch, a header of said ATM cell being translated by said switch fabric of said first switch to include location information in said header of said ATM cell.
Claim 2
Independent Claim
113 words
A system for communicating topology information in an ATM network, said system having: a) a central manager for receiving said topology information; b) a first switch coupled in communication with said central manager, said first switch having a switch fabric for switching ATM cells through said first switch and for translating headers of said ATM cells; c) a device coupled with a first port of said first switch to communicate an ATM cell to said first switch, said ATM cell being switched through said first switch, a header of said ATM cell being translated by said switch fabric of said first switch to include location information in said header of said ATM cell.
Claim 3
Dependent Claim
21 words
The system as recited by claim 1 wherein said location information includes information identifying said first switch and said first port.
Claim 4
Dependent Claim
23 words
The system as recited by claim 2 wherein said information identifying said first switch identifies a virtual service path of said first switch.
Claim 5
Dependent Claim
27 words
The system as recited by claim 2 wherein said information identifying said first switch is stored in a VPI field of said header of said ATM cell.
Claim 6
Dependent Claim
18 words
The system as recited by claim 2 wherein said information identifying said first port is a port number.
Claim 7
Dependent Claim
27 words
The system as recited by claim 2 wherein said information identifying said first port is stored in a VCI field of said header of said ATM cell.
Claim 8
Dependent Claim
14 words
The system as recited by claim 1 wherein said device is a second switch.
References Cited (Backward Citations)
US4545013A
Cited
US4644532A
Cited
US5031093A
Cited
US4827411A
Cited
US5012466A
Cited
US4847830A
Cited
US5049873A
Cited
US5101348A
Cited
US5079767A
Cited
US5062103A
Cited
US4984264A
Cited
US5038343A
Cited
US5303343A
Cited
US5177736A
Cited
US5150464A
Cited
US5140585A
Cited
US5280610A
Cited
US5309434A
Cited
US5251204A
Cited
US5313463A
Cited
US5307491A
Cited
US5165091A
Cited
US5164938A
Cited
US5287535A
Cited
US5432777A
Cited
US5339318A
Cited
US5327420A
Cited
US5390170A
Cited
US5345446A
Cited
US5327486A
Cited
US5432790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-12-17 | 2000-06-17 | 2000-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-17 | 2004-06-17 | 2004-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-17 | 2008-06-17 | 2008-12-17 | $7700.00 | Window Closed / Lapsed |