US6064648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for notifying a frame relay network of traffic congestion in an ATM network
Assignee: Vringo Infrastructure Inc
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Filing: 1995-12-21
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Granted: 2000-05-16
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Expires: 2015-12-21
Abstract
Abstract A method for notifying a frame relay network of traffic congestion in an ATM network. When the ATM network provides a notification of congestion, a management message, which is independent from a user-traffic carrying message, is generated at an interface between the ATM network and the frame relay network and transmitted to the frame relay network sending user traffic to the ATM network.
Inventors
- 👤 Esko Hellman
- 👤 Hannu Flinck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:18
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/66; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5619; H04L2012/5629; H04L2012/5631; H04L2012/5632; H04L2012/5635; H04L2012/5636; H04L2012/5638; H04L2012/5645; H04L2012/5665; H04L2012/567
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
158 words
A method for indicating traffic congestion from an ATM network to a frame relay network, the method comprising: transmitting, in the frame relay network, messages of at least a first type and a second type, the messages of the first type are for carrying user traffic and the messages of the second type are for carrying management messages, the messages of the second type being independent of the messages of the first type and the messages of the second type being independently transmitted of the messages of the first type; generating, in response to a detection of congestion, at an interface between the ATM network and the frame relay network, a congestion-indicating management message of the second type; and sending the congestion-indicating management message to the frame relay network; wherein information on connections from which congestion has been detected within a predetermined time is collected to be transmitted in a single congestion-indicating management message of the second type.
Claim 2
Independent Claim
158 words
A method for indicating traffic congestion from an ATM network to a frame relay network, the method comprising: transmitting, in the frame relay network, messages of at least a first type and a second type, the messages of the first type are for carrying user traffic and the messages of the second type are for carrying management messages, the messages of the second type being independent of the messages of the first type and the messages of the second type being independently transmitted of the messages of the first type; generating, in response to a detection of congestion, at an interface between the ATM network and the frame relay network, a congestion-indicating management message of the second type; and sending the congestion-indicating management message to the frame relay network; wherein information on connections from which congestion has been detected within a predetermined time is collected to be transmitted in a single congestion-indicating management message of the second type.
Claim 3
Dependent Claim
32 words
A method according to claim 1, wherein the congestion-indicating management message of the second type is generated based only on receiving ATM cells, having a congestion notification, belonging to a certain connection.
Claim 4
Dependent Claim
34 words
A method according to claim 1, wherein the generating of the congestion-indicating management message occurs after a predetermined number of ATM cells on the connection indicate congestion, the predetermined number being greater than one.
Claim 5
Dependent Claim
19 words
A method according to claim 3, wherein the certain number of ATM cells indicating congestion are successive ATM cells.
Claim 6
Dependent Claim
32 words
A method according to claim 1, further comprising: generating a congestion-over message when a certain number of congestion-free ATM cells are received; and sending the congestion-over message to the frame relay network.
Claim 7
Dependent Claim
18 words
A method according to claim 5, wherein the certain number of congestion-free ATM cells are successive ATM cells.
References Cited (Backward Citations)
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US5734654A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-05-16 | 2003-11-15 | 2004-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-05-16 | 2007-11-15 | 2008-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-05-16 | 2011-11-15 | 2012-05-16 | $7700.00 | Window Closed / Lapsed |