US5982748A
Expired / Lapsed
US
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Method and apparatus for controlling admission of connection requests
Assignee: Avaya Inc
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Filing: 1996-10-03
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Granted: 1999-11-09
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Expires: 2016-10-03
Abstract
Abstract A system controls the admission of a connection request based on available resources. The received connection request specifies a particular class of service. The system then determines the allocated bandwidth for the specified class of service. Available resources for the specified class of service are determined based on measured traffic flow and the allocated bandwidth associated with the specified class of service. The connection request is accepted if the available resources are capable of supporting the requested connection. An allocation factor may be used by the system to allocate bandwidth. The allocation factor can be updated based on changes in measured traffic flow. Additionally, subscribed traffic parameters may be used to determine available resources for the specified class of service.
Inventors
- 👤 Nanying Yin
- 👤 Steven R. Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:11
CPC Classifications
H; H04; H04L; H04L47/00; H04L47/70; H04L47/82; H04L47/822; H04L47/80; H04L47/805; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L12/00; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5629; H04L2012/5631; H04L2012/5632; H04L2012/5638; H04L2012/5646; H04L2012/5651; H04L2012/5678; H04L2012/5679; H04L2012/5681
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
111 words
A method for controlling admission of a connection request received by a network node, the connection request specifying a class of service, the method comprising the steps of: determining allocated bandwidth for the specified class of service using an allocation factor associated with the specified class of service, wherein the allocation factor permits oversubscription of the allocated bandwidth; determining available resources for the specified class of service in response to actual measured traffic flow and the allocated bandwidth; accepting the connection request if the available resources are capable of supporting the requested connection; and updating the allocated bandwidth for the specified class of service based on the actual measured traffic flow.
Claim 2
Independent Claim
111 words
A method for controlling admission of a connection request received by a network node, the connection request specifying a class of service, the method comprising the steps of: determining allocated bandwidth for the specified class of service using an allocation factor associated with the specified class of service, wherein the allocation factor permits oversubscription of the allocated bandwidth; determining available resources for the specified class of service in response to actual measured traffic flow and the allocated bandwidth; accepting the connection request if the available resources are capable of supporting the requested connection; and updating the allocated bandwidth for the specified class of service based on the actual measured traffic flow.
Claim 3
Dependent Claim
25 words
The method of claim 1 wherein the available resources are further determined in response to subscribed traffic parameters associated with the specified class of service.
Claim 4
Dependent Claim
24 words
The method of claim 1 wherein the allocation factor is updated in response to measured traffic flow associated with the specified class of service.
Claim 5
Dependent Claim
24 words
The method of claim 1 wherein the step of determining available resources uses a buffer allocation parameter associated with the specified class of service.
Claim 6
Dependent Claim
14 words
The method of claim 1 wherein the network node is a switching system product.
Claim 7
Dependent Claim
14 words
The method of claim 1 wherein the network node is a transmission system product.
Claim 8
Dependent Claim
16 words
The method of claim 1 wherein the network node is an asynchronous transfer mode (ATM) switch.
Claim 9
Independent Claim
109 words
A method for controlling admission of a connection request received by a network node, the connection request specifying a class of service, the method comprising the steps of: determining available resources for the specified class of service in response to an allocation factor associated with the specified class of service, wherein the allocation factor permits oversubscription of allocated bandwidth and is determined in response to actual measured traffic flow associated with the specified class of service; accepting the connection request if the available resources are capable of supporting the requested connection; and updating the allocation factor for the specified class of service based on the actual measured traffic flow.
Claim 10
Independent Claim
109 words
A method for controlling admission of a connection request received by a network node, the connection request specifying a class of service, the method comprising the steps of: determining available resources for the specified class of service in response to an allocation factor associated with the specified class of service, wherein the allocation factor permits oversubscription of allocated bandwidth and is determined in response to actual measured traffic flow associated with the specified class of service; accepting the connection request if the available resources are capable of supporting the requested connection; and updating the allocation factor for the specified class of service based on the actual measured traffic flow.
Claim 11
Dependent Claim
28 words
The method of claim 8 wherein the allocation factor is determined in response to subscribed traffic parameters and measured traffic flow associated with the specified class of service.
Claim 12
Dependent Claim
26 words
The method of claim 8 wherein the allocation factor is updated in response to changes in measured traffic flow associated with the specified class of service.
Claim 13
Dependent Claim
14 words
The method of claim 8 wherein the network node is a switching system product.
Claim 14
Dependent Claim
14 words
The method of claim 8 wherein the network node is a transmission system product.
Claim 15
Dependent Claim
16 words
The method of claim 8 wherein the network node is an asynchronous transfer mode (ATM) switch.
Claim 16
Independent Claim
130 words
A method for controlling admission of connection requests received by a network node, the network node capable of supporting at least one class of service, the method comprising the steps of: determining a bandwidth allocation factor associated with each supported class of service, wherein the bandwidth allocation factor permits oversubscription of allocated bandwidth; determining available resources for each supported class of service in response to the bandwidth allocation factor associated with the class of service, wherein the bandwidth allocation factor is determined in response to actual measured traffic flow for the associated class of service; accepting a particular connection request if the available resources are capable of supporting the requested connection; and updating the allocated bandwidth factor for the associated class of service based on the actual measured traffic flow.
Claim 17
Independent Claim
130 words
A method for controlling admission of connection requests received by a network node, the network node capable of supporting at least one class of service, the method comprising the steps of: determining a bandwidth allocation factor associated with each supported class of service, wherein the bandwidth allocation factor permits oversubscription of allocated bandwidth; determining available resources for each supported class of service in response to the bandwidth allocation factor associated with the class of service, wherein the bandwidth allocation factor is determined in response to actual measured traffic flow for the associated class of service; accepting a particular connection request if the available resources are capable of supporting the requested connection; and updating the allocated bandwidth factor for the associated class of service based on the actual measured traffic flow.
Claim 18
Dependent Claim
29 words
The method of claim 14 wherein the bandwidth allocation factor is determined in response to subscribed traffic parameters and measured traffic flow associated with the specified class of service.
Claim 19
Dependent Claim
26 words
The method of claim 14 wherein each bandwidth allocation factor is updated in response to changes in measured traffic flow for the associated class of service.
Claim 20
Dependent Claim
14 words
The method of claim 14 wherein the network node is a switching system product.
Claim 21
Dependent Claim
14 words
The method of claim 14 wherein the network node is a transmission system product.
Claim 22
Dependent Claim
16 words
The method of claim 14 wherein the network node is an asynchronous transfer mode (ATM) switch.
Claim 23
Independent Claim
121 words
An apparatus for controlling the admission of connection requests received by a network node, comprising: a rate monitor coupled to measure traffic flow for classes of service supported by the network node; and a connection admission controller coupled to the rate monitor and coupled to receive connection requests, the connection admission controller allocating bandwidth for each supported class of service in response to actual traffic flow measurements, the connection admission controller permiting oversubscription of allocated bandwidth, the connection admission controller identifying available resources and accepting a connection request if the available resources are capable of supporting the connection request, and the connection admission controller updating the allocated bandwidth for each supported class of service based on the actual measured traffic flow.
Claim 24
Independent Claim
121 words
An apparatus for controlling the admission of connection requests received by a network node, comprising: a rate monitor coupled to measure traffic flow for classes of service supported by the network node; and a connection admission controller coupled to the rate monitor and coupled to receive connection requests, the connection admission controller allocating bandwidth for each supported class of service in response to actual traffic flow measurements, the connection admission controller permiting oversubscription of allocated bandwidth, the connection admission controller identifying available resources and accepting a connection request if the available resources are capable of supporting the connection request, and the connection admission controller updating the allocated bandwidth for each supported class of service based on the actual measured traffic flow.
Claim 25
Dependent Claim
22 words
The apparatus of claim 20 further including a queue for each supported class of service, each queue coupled to the rate monitor.
Claim 26
Dependent Claim
23 words
The apparatus of claim 20 wherein the connection admission controller updates bandwidth allocation in response to traffic flow measurements by the rate monitor.
Claim 27
Dependent Claim
13 words
The apparatus of claim 20 wherein the apparatus is a switching system product.
Claim 28
Dependent Claim
13 words
The apparatus of claim 20 wherein the apparatus is a transmission system product.
Claim 29
Dependent Claim
15 words
The apparatus of claim 20 wherein the apparatus is an asynchronous transfer mode (ATM) switch.
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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) | 2002-11-08 | 2003-05-10 | 2003-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-08 | 2007-05-10 | 2007-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-08 | 2011-05-10 | 2011-11-09 | $7700.00 | Window Closed / Lapsed |