Prioritizing network management traffic

• US 7,047,292 B1
• Filed: 05/24/1999
• Issued: 05/16/2006
• Est. Priority Date: 05/24/1999
• Status: Expired due to Term

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Stewart, Robert L., Kavasseri, Ramanathan R., Durham, Sandra C.
• Primary Examiner(s): Alam, Hosain T.
• Assistant Examiner(s): Woo, Isaac M.
• Application Number:
  US09/317,746
• Time in Patent Office: 2,549 Days
• Field of Search: 709205-226, 709/227
• US Class Current: 709/224
• CPC Class Codes: H04L 41/0213 Standardised network management protocols, e.g. simple network management protocol [SNMP]

Abstract

In a computer network, network management applications in a network management station manage and control managed elements connected to the network through the use of network management requests. The network management requests are prioritized by the management station or the managed element. The managed element prioritizes received requests by pre-assigning priority values corresponding to user identification values included in the request or by pre-assigning priority values corresponding to source identification values included in the request. The management station prioritizes the network management requests by adding a priority value to each network management requests before sending the request to the managed element. The managed element extracts the priority value directly from the request or dependent on the user identification or source identification included in the request.

Claims

1. A method for prioritizing a network management request sent by a management station to a managed element, comprising the steps of:

upon receiving a network management request, assigning a priority value to the received network management request, the priority value assigned by the managed element dependent upon a user identifier in a network management wrapper included in the request, the user identifier identifying the user of an application from which the request was sent; and

scheduling the network management request, by the managed element dependent on the assigned priority value.

2. The method as claimed in claim 1 wherein the step of assigning further comprises the step of:

adding a priority value to an authentication group comprising a plurality of users, in an authentication table.

3. The method as claimed in claim 2 wherein the step of scheduling further comprises the steps of:

extracting a user identifier from the received network management request; and

determining the priority value by using the extracted user identifier to index the authentication table.

4. The method as claimed in claim 3 wherein the step of scheduling further comprises the step of:

selecting the order of execution of the network management request dependent on the determined priority value.

5. The method as claimed in claim 4 wherein the step of selecting further comprises the step of:

preempting the currently executing task if the determined value for the management request is higher than the currently executing task.

6. The method as claimed in claim 4 wherein the step of selecting further comprises the step of:

adding the management request to the end of a request queue if the determined priority is lower than the priority of the tasks in the request queue.

7. The method as claimed in claim 4 wherein the step of selecting further comprises the step of:

adding the management request to the front of a request queue if the determined priority is higher than the priority of the tasks in the request queue.

8. The method as claimed in claim 2 wherein the step of scheduling further comprises the step of:

selecting the order of execution of the network management request dependent on the determined priority value.

9. The method as claimed in claim 8 wherein the step of selecting further comprises the step of:

preempting a currently executing task if the determined value for the management request is higher than the currently executing task.

10. The method as claimed in claim 8 wherein the step of selecting further comprises the step of:

adding the management request to the bottom of a request queue if the determined priority is lower than the priority of the tasks in the request queue.

11. The method as claimed in claim 8 wherein the step of selecting further comprises the step of:

adding the management request to the top of a request queue if the determined priority is higher than the priority of the tasks in the request queue.

12. An apparatus for prioritizing a network management request sent by a management station to a managed element, comprising:

a priority assignment routine which upon receiving a network management request assigns a priority value to the received network management request, the priority value assigned in the managed element dependent upon a user identifier in a network management header included in the request, the user identifier identifying the user of an application from which the request was sent; and

a network management request routine which schedules the network management request in the managed element dependent on the assigned priority value.

13. The apparatus as claimed in claim 12 wherein the priority assignment routine further comprises:

a priority value assignment routine which adds a priority value to an authentication group comprising a plurality of users, in an authentication table.

14. The apparatus as claimed in claim 13 wherein the network management routine further comprises:

a user identification extraction routine which extracts a user identifier from the network management request; and

a priority value extraction routine which determines the priority value by using the extracted user identifier to index the authentication table.

15. The apparatus as claimed in claim 12 wherein the network management routine further comprises:

a source identification extraction routine which extracts the user identifier from the network management request; and

a priority value determination routine which determines the priority value using the extracted user identifier to index the source identification table.

16. An apparatus for prioritizing a network management request sent by a management station to a managed element, comprising:

a priority assignment routine;

a network management request scheduler;

upon receiving a network management request, means, within the priority assignment routine, for assigning a priority value to the received network management request, the priority value assigned in the managed element dependent upon a user identifier in a network management wrapper included in the network management request, the user identifier identifying the user of an application from which the request was sent; and

means, within the network management request scheduler, for scheduling the network management request in the managed element dependent on the assigned priority value.

17. A computer program product for prioritizing a network management request sent by a management station to a managed element, the computer program product comprising a computer usable medium having computer readable code thereon, including program code which:

upon receiving a network management request, assigns a priority value to the received network management request, the priority value assigned by the managed element dependent upon a user identifier in a network management header included in the request, the user identifier identifying the user of the application from which the request was sent; and

schedules the network management request in the managed element dependent on the assigned priority value.

18. A method for prioritizing a message requesting information stored in a managed element, the message being sent by a management station to the managed element, comprising the steps of:

upon receiving a network management request, assigning a priority value to the received message, the priority value assigned by the managed element dependent upon a user identifier in a network management wrapper included in the request, the user identifier identifying the user of an application from which the request was sent; and

scheduling the message, by the managed element dependent on the assigned priority value.

19. The method of claim 18 wherein the message is in the form of a Simple Network Management Request.

20. A method for prioritizing a Simple Network Management Protocol message sent by a management station to the managed element, comprising the steps of:

upon receiving a network management request, assigning a priority value to the received Simple Network Management Protocol message, the priority assigned by the managed element dependent upon a user identifier in a network management wrapper included in the message, the user identifier identifying the user of an application from which the message was sent; and

scheduling the message, by the managed element dependent on the assigned priority value.

21. A method for prioritizing a network management request sent by a management station to a managed element, comprising the steps of:

upon receiving a network management request, assigning a priority value to the received network management request, the priority assigned by the managed element dependent upon a source identifier in a network management wrapper included in the request, the source identifier identifying the source of an application from which the request was sent; and

scheduling the network management request, by the managed element dependent on the assigned priority value.

22. The method as claimed in claim 21 wherein the step of assigning further comprises the step of:

adding a priority value to the source identifier in a source identification table.

23. The method as claimed in claim 22 wherein the step of scheduling further comprises the step of:

extracting the source identifier from the network management request; and

determining the priority value by using the extracted source identifier to index the source identification table.