IP Library Granted Patent US 7,324,447
Granted Patent B1
US 7,324,447 · App. 10/260,802 · Granted Jan 29, 2008

Methods, apparatuses and systems facilitating concurrent classification and control of tunneled and non-tunneled network traffic

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Quick Facts
Patent No.
US 7,324,447
App. No.
10/260,802
Granted
Jan 29, 2008
Kind
B1
Abstract

Methods, apparatuses and systems facilitating the concurrent classification and control of tunneled and non-tunneled data flows in a packet-based computer network environment. As discussed in more detail below, embodiments of the present invention allow for the “intra-tunnel” classification of data flows and, based on the classification, the deterministic and intelligent application of aggregate bandwidth utilization controls on data flows corresponding to a given tunnel. Embodiments of the present invention allow for the allocation of bandwidth on an application-level basis between tunneled and non-tunneled traffic, as well as between applications within a given tunnel. Other embodiments of the present invention can be configured to provide a differentiated security model for non-tunneled and tunneled traffic. In addition, embodiments of the present invention can be further configured to implement a layered security model for tunneled traffic.

Claims (9)

1. A method facilitating concurrent classification and control of tunneled and non-tunneled network traffic, the method comprising:

receiving a tunneled data flow;

associating the tunneled data flow to a tunnel traffic class;

recording at least one metric associated with the tunneled data flow;

transferring the tunneled data flow to a tunnel mechanism;

receiving a converted data flow from the tunnel mechanism;

associated the at least one metric associated with the tunneled data flow to the converted data flow;

identifying at least one traffic class corresponding to the converted data flow, wherein the at least one traffic class is a child traffic class of the tunnel traffic class in a hierarchical traffic class configuration;

enforcing a bandwidth utilization control associated with the at least one traffic class on the converted data flow based at least in part on the at least one metric associated with the tunneled data flow.

Assignments (8)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 21, 2019
From: SYMANTEC CORPORATION
To: CA, INC.
Reel/Frame 051144/0918 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 27, 2016
From: BLUE COAT SYSTEMS, INC.
To: SYMANTEC CORPORATION
Reel/Frame 039851/0044 →
RELEASE OF SECURITY INTEREST Recorded Aug 1, 2016
From: JEFFERIES FINANCE LLC
To: BLUE COAT SYSTEMS, INC.
Reel/Frame 039516/0929 →
RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL AT REEL/FRAME NO. 30740/0181 Recorded May 29, 2015
From: JEFFERIES FINANCE LLC
To: BLUE COAT SYSTEMS, INC.
Reel/Frame 035797/0280 →
RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL AT REEL/FRAME NO. 27727/0144 Recorded May 29, 2015
From: JEFFERIES FINANCE LLC
To: BLUE COAT SYSTEMS, INC.
Reel/Frame 035798/0006 →
SECURITY INTEREST Recorded May 22, 2015
From: BLUE COAT SYSTEMS, INC.
To: JEFFERIES FINANCE LLC, AS THE COLLATERAL AGENT
Reel/Frame 035751/0348 →
SECOND LIEN PATENT SECURITY AGREEMENT Recorded Jul 3, 2013
From: BLUE COAT SYSTEMS, INC.
To: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 030740/0181 →
RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL RECORDED AT R/F 027727/0178 Recorded Oct 16, 2012
From: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
To: BLUE COAT SYSTEMS, INC.
Reel/Frame 029140/0170 →