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US5703870A
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Congestion control method
Assignee: NEC Corp
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Filing: 1995-11-14
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Granted: 1997-12-30
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Expires: 2015-11-14
Abstract
Abstract In a congestion control method for a system having a first network of one congestion control unit representing a subset of a switching network constituted by a set of switching nodes connected to each other and a second network which serves as a subset of the switching network and does not have a switching node common to the first network, thereby controlling congestion of the first and second networks, the traffic is classified into first traffic generated in the first network and reaching a target switching node of the first network through a switching node in the first network, second traffic having the switching node of the first network as a start point and directed toward the second network, third traffic having a switching node in the second network as a start point and transmitted through a switching node in the second network and a switching node in the first network, and fourth traffic which does not correspond to any one of the first traffic, the second traffic, and the third traffic. Upon occurrence of congestion in the first network, the traffic flow amounts and traffic rates of the first traffic and the second traffic are limited in the first network.
Inventors
- 👤 Tutomu Murase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:23
CPC Classifications
H; H04; H04L; H04L47/00; H04L47/10; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L12/00; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5629; H04L2012/5631; H04L2012/5632; H04L2012/5635; H04L2012/5636; H04L2012/5638; H04L2012/5646; H04L2012/5647; H04L2012/5651; H04L2012/5678; H04L2012/568
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
201 words
A congestion control method for a system having a first network of one congestion control unit representing a subset of a switching network constituted by a set of switching nodes connected to each other and a second network which serves as a subset of the switching network and does not have a switching node common to the first network, thereby controlling congestion of the first and second networks, comprising the steps of: classifying traffic into first traffic generated in the first network and reaching a target switching node of the first network through a switching node in the first network, second traffic having the switching node of the first network as a start point and directed toward the second network, third traffic having a switching node in the second network as a start point and transmitted through a switching node in the second network and a switching node in the first network, and fourth traffic which does not correspond to any one of the first traffic, the second traffic, and the third traffic; and upon occurrence of congestion in the first network, limiting traffic flow amounts and traffic rates of the first traffic and the second traffic in the first network.
Claim 2
Dependent Claim
201 words
A congestion control method for a system having a first network of one congestion control unit representing a subset of a switching network constituted by a set of switching nodes connected to each other and a second network which serves as a subset of the switching network and does not have a switching node common to the first network, thereby controlling congestion of the first and second networks, comprising the steps of: classifying traffic into first traffic generated in the first network and reaching a target switching node of the first network through a switching node in the first network, second traffic having the switching node of the first network as a start point and directed toward the second network, third traffic having a switching node in the second network as a start point and transmitted through a switching node in the second network and a switching node in the first network, and fourth traffic which does not correspond to any one of the first traffic, the second traffic, and the third traffic; and upon occurrence of congestion in the first network, limiting traffic flow amounts and traffic rates of the first traffic and the second traffic in the first network.
Claim 3
Dependent Claim
204 words
A congestion control method for a system having a first network of one congestion control unit representing a subset of a switching network constituted by a set of switching nodes connected to each other and a second network which serves as a subset of the switching network and does not have a switching node common to the first network, thereby controlling congestion of the first and second networks, comprising the steps of: classifying traffic into first traffic generated in the first network and reaching a target switching node of the first network through a switching node in the first network, second traffic having the switching node of the first network as a start point and directed toward the second network, third traffic having a switching node in the second network as a start point and transmitted through a switching node in the second network and a switching node in the first network, and fourth traffic which does not correspond to any one of the first traffic, the second traffic, and the third traffic; and upon occurrence of congestion in the first network, independently controlling priority levels of the first traffic, the second traffic, the third traffic, and the fourth traffic in the first network.
Claim 4
Dependent Claim
204 words
A congestion control method for a system having a first network of one congestion control unit representing a subset of a switching network constituted by a set of switching nodes connected to each other and a second network which serves as a subset of the switching network and does not have a switching node common to the first network, thereby controlling congestion of the first and second networks, comprising the steps of: classifying traffic into first traffic generated in the first network and reaching a target switching node of the first network through a switching node in the first network, second traffic having the switching node of the first network as a start point and directed toward the second network, third traffic having a switching node in the second network as a start point and transmitted through a switching node in the second network and a switching node in the first network, and fourth traffic which does not correspond to any one of the first traffic, the second traffic, and the third traffic; and upon occurrence of congestion in the first network, independently controlling priority levels of the first traffic, the second traffic, the third traffic, and the fourth traffic in the first network.
Claim 5
Dependent Claim
199 words
A congestion control method for a system having a first network of one congestion control unit representing a subset of a switching network constituted by a set of switching nodes connected to each other and a second network which serves as a subset of the switching network and does not have a switching node common to the first network, thereby controlling congestion of the first and second networks, comprising the steps of: classifying traffic into first traffic generated in the first network and reaching a target switching node of the first network through a switching node in the first network, second traffic having the switching node of the first network as a start point and directed toward the second network, third traffic having a switching node in the second network as a start point and transmitted through a switching node in the second network and a switching node in the first network, and fourth traffic which does not correspond to any one of the first traffic, the second traffic, and the third traffic; and upon occurrence of congestion in the first network, limiting a traffic flow amount and a traffic rate of the third traffic in the second network.
Claim 6
Dependent Claim
199 words
A congestion control method for a system having a first network of one congestion control unit representing a subset of a switching network constituted by a set of switching nodes connected to each other and a second network which serves as a subset of the switching network and does not have a switching node common to the first network, thereby controlling congestion of the first and second networks, comprising the steps of: classifying traffic into first traffic generated in the first network and reaching a target switching node of the first network through a switching node in the first network, second traffic having the switching node of the first network as a start point and directed toward the second network, third traffic having a switching node in the second network as a start point and transmitted through a switching node in the second network and a switching node in the first network, and fourth traffic which does not correspond to any one of the first traffic, the second traffic, and the third traffic; and upon occurrence of congestion in the first network, limiting a traffic flow amount and a traffic rate of the third traffic in the second network.
Claim 7
Dependent Claim
43 words
A method according to claim 1, further comprising the step of independently controlling priority levels respectively given to the first traffic, the second traffic, the third traffic, and the fourth traffic in the first network upon occurrence of congestion in the first network.
Claim 8
Dependent Claim
36 words
A method according to claim 1, further comprising the step of limiting a traffic flow amount and a traffic rate of the third traffic in the second network upon occurrence of congestion in the first network.
Claim 9
Dependent Claim
36 words
A method according to claim 2, further comprising the step of limiting a traffic flow amount and a traffic rate of the third traffic in the second network upon occurrence of congestion in the first network.
Claim 10
Dependent Claim
36 words
A method according to claim 4, further comprising the step of limiting a traffic flow amount and a traffic rate of the third traffic in the second network upon occurrence of congestion in the first network.
References Cited (Backward Citations)
US5090011A
Cited
US5280470A
Cited
US5311513A
Cited
US5463620A
Cited
US5457687A
Cited
US5446726A
Cited
US5497375A
Cited
US5633861A
Cited
US5533009A
Cited
USPTO Annuity & Maintenance Windows
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| 3.5 Years (Year 4) | 2000-12-29 | 2001-06-30 | 2001-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-29 | 2005-06-30 | 2005-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-29 | 2009-06-30 | 2009-12-30 | $7700.00 | Window Closed / Lapsed |