IP Library Granted Patent US 7,551,560
Granted Patent B1
US 7,551,560 · App. 09/846,451 · Granted Jun 23, 2009

Method of reducing packet loss by resonance identification in communication networks

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Quick Facts
Patent No.
US 7,551,560
App. No.
09/846,451
Granted
Jun 23, 2009
Kind
B1
Abstract

A control node of a communication network is operated at a packet bandwidth determined according to observations of performance metrics of the network at the control point. These performance metrics may be one or more of throughput, average fetch time and packet loss. The control node is operated so as to set a control bandwidth to corresponding resonance points of the performance metrics. The resonance points are determined by scanning across a range of control bandwidths, until one or more of the performance metrics is/are optimized. The packet bandwidth is set by varying an inter-packet delay time over selected communication links at the control node.

Claims (14)

1. A method, comprising:

operating a control node of a communication network at a packet bandwidth wherein the control node coupled to a network node is located in a communication link between at least one server and at least one client,

determining at least one resonance state of a performance metric that exhibits improved network performance metrics at the control node by monitoring the performance metric while scanning across a range of bandwidths of the control node until the at least one resonance state of the performance metric is observed, the at least one resonance state indicating that one or more of the network performance metrics is optimized, and

setting said packet bandwidth of the control node to a value that corresponds to the at least one resonance state of the performance metrics that is optimized, wherein the packet bandwidth is set by varying an inter-packet delay time over selected communication links at the control node.

2. The method of claim 1 , wherein the network performance metrics comprise one or more of throughput, average fetch time and packet loss.

3. The method of claim 1 , wherein said resonance state is a best observed resonance state from the at least one resonance state.

4. A method, comprising:

determining at least one resonance state of a performance metric that exhibits improved network performance metrics at a control node coupled to a network node inside a communication network by monitoring the performance metric while scanning across a range of bandwidths of the control node until the at least one resonance state of the performance metric is observed indicating that one or more of the network performance metrics is optimized; and

operating the control node within the communication network at a packet bandwidth, wherein the packet bandwidth is set to a value that corresponds to the at least one resonance state of the performance metric that is optimized, wherein the control node is located in a communication link between at least one server and at least one client, wherein the packet bandwidth is set by varying an inter-packet delay time over selected communication links at the control node.

5. The method of claim 4 , wherein the network performance metrics comprise one or more of throughput, average fetch time, and packet loss.

6. The method of claim 4 , wherein said resonance state is a best observed resonance state from the at least one resonance state.

7. An apparatus to control congestion in a communication network, wherein the apparatus comprises:

a control node coupled to a network node, wherein the control node is located in a communication link between at least one server and at least one client, wherein the control node is to determine at least one resonance state of a performance metric that exhibits improved network performance metrics, wherein the at least one resonance state is determined by monitoring the performance metric while scanning across a range of bandwidths of the control node until the at least one resonance state of the performance metric is observed, the at least one resonance state indication that one or more of the performance metrics is optimized, wherein the control node operates at a packet bandwidth, wherein the packet bandwidth is set to a value that corresponds to the at least one resonance state of the performance metric that is optimized, and wherein the packet bandwidth is set by varying an inter-packet delay time over selected communication links at the control node.

8. The apparatus of claim 7 , wherein said resonance state is a best observed resonance state from the at least one resonance state.

Assignments (18)
RELEASE OF SECURITY INTEREST Recorded Aug 11, 2023
From: ALTER DOMUS (US) LLC, AS COLLATERAL AGENT
To: RIVERBED TECHNOLOGY, INC.; ATERNITY LLC; RIVERBED HOLDINGS, INC.
Reel/Frame 064673/0739 →
CHANGE OF NAME Recorded Feb 18, 2022
From: RIVERBED TECHNOLOGY, INC.
To: RIVERBED TECHNOLOGY LLC
Reel/Frame 059232/0551 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Dec 27, 2021
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS U.S. COLLATERAL AGENT
To: RIVERBED TECHNOLOGY, INC.; ATERNITY LLC
Reel/Frame 058593/0169 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Dec 27, 2021
From: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
To: RIVERBED TECHNOLOGY, INC.; ATERNITY LLC
Reel/Frame 058593/0046 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Dec 27, 2021
From: ALTER DOMUS (US) LLC, AS COLLATERAL AGENT
To: RIVERBED TECHNOLOGY, INC.; ATERNITY LLC
Reel/Frame 058593/0108 →
SECURITY INTEREST Recorded Dec 10, 2021
From: RIVERBED TECHNOLOGY LLC (FORMERLY RIVERBED TECHNOLOGY, INC.); ATERNITY LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS U.S. COLLATERAL AGENT
Reel/Frame 058486/0216 →
PATENT SECURITY AGREEMENT Recorded Oct 27, 2021
From: RIVERBED TECHNOLOGY, INC.; ATERNITY LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 057943/0386 →
PATENT SECURITY AGREEMENT SUPPLEMENT - FIRST LIEN Recorded Oct 14, 2021
From: RIVERBED HOLDINGS, INC.; RIVERBED TECHNOLOGY, INC.; ATERNITY LLC
To: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
Reel/Frame 057810/0502 →
PATENT SECURITY AGREEMENT SUPPLEMENT - SECOND LIEN Recorded Oct 14, 2021
From: RIVERBED HOLDINGS, INC.; RIVERBED TECHNOLOGY, INC.; ATERNITY LLC
To: ALTER DOMUS (US) LLC, AS COLLATERAL AGENT
Reel/Frame 057810/0559 →
RELEASE OF SECURITY INTEREST IN PATENTS RECORED AT REEL 056397, FRAME 0750 Recorded Oct 13, 2021
From: MACQUARIE CAPITAL FUNDING LLC
To: RIVERBED HOLDINGS, INC.; RIVERBED TECHNOLOGY, INC.; ATERNITY LLC
Reel/Frame 057983/0356 →
SECURITY INTEREST Recorded May 26, 2021
From: RIVERBED HOLDINGS, INC.; RIVERBED TECHNOLOGY, INC.; ATERNITY LLC
To: MACQUARIE CAPITAL FUNDING LLC
Reel/Frame 056397/0750 →
PATENT SECURITY AGREEMENT Recorded Mar 5, 2021
From: RIVERBED TECHNOLOGY, INC.
To: ALTER DOMUS (US) LLC, AS COLLATERAL AGENT
Reel/Frame 055514/0249 →
CORRECTIVE ASSIGNMENT TO CORRECT THE CONVEYING PARTY NAME PREVIOUSLY RECORDED ON REEL 035521 FRAME 0069. ASSIGNOR(S) HEREBY CONFIRMS THE RELEASE OF SECURITY INTEREST IN PATENTS. Recorded Jun 2, 2015
From: JPMORGAN CHASE BANK, N.A.
To: RIVERBED TECHNOLOGY, INC.
Reel/Frame 035807/0680 →
SECURITY INTEREST Recorded May 1, 2015
From: RIVERBED TECHNOLOGY, INC.
To: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
Reel/Frame 035561/0363 →
RELEASE OF SECURITY INTEREST IN PATENTS Recorded Apr 28, 2015
From: BARCLAYS BANK PLC
To: RIVERBED TECHNOLOGY, INC.
Reel/Frame 035521/0069 →
PATENT SECURITY AGREEMENT Recorded Dec 27, 2013
From: RIVERBED TECHNOLOGY, INC.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 032421/0162 →
RELEASE OF PATENT SECURITY INTEREST Recorded Dec 26, 2013
From: MORGAN STANLEY & CO. LLC, AS COLLATERAL AGENT
To: RIVERBED TECHNOLOGY, INC.
Reel/Frame 032113/0425 →
SECURITY AGREEMENT Recorded Dec 20, 2012
From: RIVERBED TECHNOLOGY, INC.; OPNET TECHNOLOGIES, INC.
To: MORGAN STANLEY & CO. LLC
Reel/Frame 029646/0060 →