Directory enabled policy management tool for intelligent traffic management

• US 6,816,903 B1
• Filed: 12/03/1999
• Issued: 11/09/2004
• Est. Priority Date: 05/27/1997
• Status: Expired due to Fees

• Current Assignee: Micro Focus Software, Inc. (Open Text Corporation)
• Original Assignee: Novell Incorporated (Open Text Corporation)
• Inventors: Vaid, Aseem, Rakoshitz, Gregory, Putta, Sanjeev Rao
• Primary Examiner(s): Dinh, Dung C.
• Application Number:
  US09/454,147
• Time in Patent Office: 1,803 Days
• Field of Search: 709/223, 709/224, 709/226, 709/229, 709/234, 370/230, 370/235, 370/232
• US Class Current: 709/226
• CPC Class Codes: H04L 41/0893 Assignment of logical groups to network elements
• CPC Class Codes: H04L 41/0894 Policy-based network configuration management
• CPC Class Codes: H04L 41/0896 Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities flow or congestion control using dynamic resource allocation, e.g. in-call renegotiation, H04L47/76
• CPC Class Codes: H04L 41/5003 Managing SLA; Interaction between SLA and QoS
• CPC Class Codes: H04L 41/5022 by giving priorities, e.g. assigning classes of service
• CPC Class Codes: H04L 41/509 wherein the managed service relates to media content delivery, e.g. audio, video or TV
• CPC Class Codes: H04L 43/00 Arrangements for monitoring or testing data switching networks
• CPC Class Codes: H04L 43/045 for graphical visualisation of monitoring data
• CPC Class Codes: H04L 43/06 Generation of reports
• CPC Class Codes: H04L 43/067 using time frame reporting
• CPC Class Codes: H04L 43/0829 Packet loss
• CPC Class Codes: H04L 43/0852 Delays
• CPC Class Codes: H04L 43/087 Jitter
• CPC Class Codes: H04L 43/0888 Throughput
• CPC Class Codes: H04L 43/0894 Packet rate
• CPC Class Codes: H04L 43/10 Active monitoring, e.g. heartbeat, ping or trace-route
• CPC Class Codes: H04L 43/106 using time related information in packets, e.g. by adding timestamps
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/20 Traffic policing
• CPC Class Codes: H04L 47/2441 relying on flow classification, e.g. using integrated services [IntServ]
• CPC Class Codes: H04L 47/2475 : for supporting traffic characterised by the type of applications
• CPC Class Codes: H04L 63/02 : for separating internal from external traffic, e.g. firewalls
• CPC Class Codes: H04L 63/20 : for managing network security; network security policies in general filtering policies H04L63/0227

Abstract

A method and system (100) for monitoring or profiling quality of service within one or more information sources in a network of computers. The method includes a step of providing a network of computers, each being coupled to each other to form a local area network. The network of computers has a firewall server (110) coupled to the network of computers and a distributed traffic management tool coupled to the firewall server. The method also includes implementing traffic monitoring or profiling of incoming and outgoing information from one of the information sources.

Claims

1. A method for monitoring a flow of information coupled to a network of computers, the method comprising:

providing a plurality of traffic classes;

associating at least one policy with each traffic class from the plurality of traffic classes;

receiving the flow of information via a communication link;

classifying the flow of information into a traffic class selected from the plurality of traffic classes, wherein the plurality of traffic classes include content of file types associated with data of the flow information, protocols or services used with the flow information, destination addresses associated with the flow information, source or origination addresses of the flow information, and a time that the flow information is received;

measuring traffic parameters for the flow of information and applying a time stamp to the measured parameters; and

applying a policy having predetermined parameter limitations which is associated with the traffic class to the flow information based on the measured traffic parameters and the time stamp to improve the quality of service for the flow of information.

2. The method of claim 1 wherein each traffic class from the plurality of traffic classes is two or more of the traffic classes.

3. The method of claim 1 wherein classifying the flow of information comprises determining the traffic class for the flow of information based on traffic characteristics of the flow of information, the traffic characteristics selected from source of the flow of information, destination of the flow of information, application type associated with the flow of information, file types associated with the flow of information, URLs associated with the flow of information, direction of the flow of information, time of receipt of the flow of information, traffic entities associated with the flow of information, and services associated with the flow of information.

4. The method of claim 1 wherein measuring the traffic parameters comprises determining a traffic profile for the flow of information.

5. The method of claim 1 wherein the policy applied to the flow of information is selected from a plurality of predefined policies including a security policy, and a traffic policy.

6. The method of claim 1 wherein associating at least one policy with each traffic class comprises:

determining the type of business associated with the traffic class;

determining priority of entities associated with the traffic class;

determining type of applications associated with the traffic class;

configuring a policy based on the type of business, the priority of entities, and the type of applications; and

associating the policy with the traffic class.

7. The method of claim 6 wherein:

determining a type of business comprises determining if the business involves an ISP; and

if the type of business involves an ISP, configuring the policy based on a business model configured by the ISP.

8. The method of claim 1 wherein applying the policy to the flow of information comprises;

determining bandwidth guarantees for the flow of information;

determining bandwidth limits for the flow of information;

determining bandwidth limiting priorities for the flow of information; and

determining admission control functions for the flow of information.

9. The method of claim 1 wherein applying the policy to the flow of information comprises:

validating the policy to be applied to the flow of information; and

applying the policy to the flow of information only if the policy is successfully validated.