Verifying information stored on a managed network device

• US 7,779,420 B1
• Filed: 09/29/2003
• Issued: 08/17/2010
• Est. Priority Date: 09/29/2003
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Koundinya, Swathi M., Puttu, Sathyanarayana Nagendra
• Primary Examiner(s): Sough; Hyung S
• Assistant Examiner(s): Anya; Charles E
• Application Number:
  US10/674,577
• Time in Patent Office: 2,514 Days
• Field of Search: 709201-207, 709217-219, 709223-226, 707 1- 10, 707100-1041, 713164-179, 719/311, 719/318, 726 23- 27, 726/7
• US Class Current: 719/318
• CPC Class Codes: H04L 41/00 Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
• CPC Class Codes: H04L 41/0213 Standardised network management protocols, e.g. simple network management protocol [SNMP]
• CPC Class Codes: H04L 41/046 comprising network management agents or mobile agents therefor

Abstract

A method and mechanism for verifying information on a managed device is provided. A request is received at a managed device that contains one or more values that comprise proposals for a correct value of a managed object of the managed device. The managed object may be a SNMP MIB object. The managed object may store information for any attribute for the managed device. Next, a determination is made as to whether any of the one or more values in the request match the correct value of the managed object. Thereafter, a notification message is transmitted from the managed device to a management station that indicates whether any of the one or more values in the request match the correct value of the managed object. The notification message may identify which one of the one or more values in the request matches the correct value of the managed object.

Claims

1. A method for verifying information on a managed device, comprising:

receiving, from a requester that stores an incorrect attribute value for an SNMP MIB object and that is unable to read and write the SNMP MIB object directly, and unable to obtain MIB object specification information, and that does not have a correct value for the SNMP MIB object, a SNMP GET request identifying an SNMP MIB object and also containing a plurality of non-null values comprising proposals for a correct value of the SNMP MIB object, wherein the SNMP GET request requests a determination as to whether any of the values matches the correct value stored in the SNMP MIB object of the managed device; and

determining whether any of the values matches the correct value stored in the SNMP MIB object; and

completing execution of the SNMP GET request by;

transmitting a notification message indicating whether any of the values matches the correct value of the SNMP MIB object

and without providing the correct value in response to the SNMP GET request;

wherein the notification message identifies an index position, within the plurality of non-null values identified by the SNMP GET request, of the correct value stored in the SNMP MIB object.

2. The method of claim 1, wherein the SNMP MIB object specification information is not generally available.

3. The method of claim 1, wherein the SNMP MIB object stores an attribute for a user credential for a protocol other than SNMP.

4. The method of claim 1, wherein the SNMP MIB object stores a username or a password for one member of the following group consisting of:

a telnet protocol, a SSH protocol, a TFTP protocol, a RCP protocol, a SNMP protocol, a TACACS protocol, and a RADIUS protocol.

5. The method of claim 1, wherein the determining step results in determining that none of the values matches the correct value of the SNMP MIB object, and wherein the transmitting step completing execution of the request comprises transmitting a notification message that includes an error message that describes an encountered problem in determining whether any of the values matches the correct value of the SNMP MIB object.

6. The method of claim 1, wherein the transmittal step comprises the step of storing, in a specified MIB object of the managed device, a notification value indicating whether any of the values matches the correct value of the SNMP MIB object.

7. A computer-readable storage medium storing one or more sequence of instructions for verifying information on a managed device, which when executed cause one or more processors to perform:

receiving, from a requester that stores an incorrect attribute value for an SNMP MIB object and that is unable to read and write the SNMP MIB object directly, and unable to obtain MIB object specification information, and that does not have a correct value for the SNMP MIB object, a SNMP GET request identifying an SNMP MIB object and also containing a plurality of non-null values comprising proposals for a correct value of the SNMP MIB object, wherein the SNMP GET request requests a determination as to whether any of the values matches the correct value stored in the SNMP MIB object of the managed device;

determining whether any of the values matches the correct value stored in the SNMP MIB object; and

completing execution of the SNMP GET request by;

transmitting a notification message indicating whether any of the values matches the correct value of the SNMP MIB object

and without providing the correct value in response to the SNMP GET request;

wherein the notification message identifies an index position, within the plurality of non-null values identified by the SNMP GET request, of the correct value stored in the SNMP MIB object.

8. The computer-readable storage medium of claim 7, wherein the SNMP MIB object specification information is not generally available.

9. The computer-readable storage medium of claim 7, wherein the SNMP MIB object stores an attribute for a user credential for a protocol other than SNMP.

10. The computer-readable storage medium of claim 7, wherein the SNMP MIB object stores a username or a password for one member of the following group consisting of:

a telnet protocol, a SSH protocol, a TFTP protocol, a RCP protocol, a SNMP protocol, a TACACS protocol, and a RADIUS protocol.

11. The computer-readable storage medium of claim 7, wherein the determining step results in determining that none of the values matches the correct value of the SNMP MIB object, and wherein the transmitting step comprises transmitting a notification message that includes an error message that describes an encountered problem in determining whether any of the values matches the correct value of the SNMP MIB object.

12. The computer-readable storage medium of claim 7, wherein the transmitting step completing execution of the request comprises the step of storing, in a specified MIB object of the managed device, a notification value indicating whether any of the values matches the correct value of the SNMP MIB object.

13. An apparatus for verifying information on a managed device, comprising:

one or more processors;

means for receiving, from a requester that stores an incorrect attribute value for an SNMP MIB object and that is unable to read and write the SNMP MIB object directly, and unable to obtain MIB object specification information, and that does not have a correct value for the SNMP MIB object, a SNMP GET request identifying an SNMP MIB object and also containing a plurality of non-null values comprising proposals for a correct value of the SNMP MIB object, wherein the SNMP GET request requests a determination as to whether any of the values matches the correct value stored in the SNMP MIB object of the managed device,

means for determining whether any of the values matches the correct value stored in the SNMP MIB object; and

means for completing execution of the SNMP GET request comprising;

means for transmitting a notification message indicating whether any of the values matches the correct value of the SNMP MIB object

and without providing the correct value in response to the SNMP GET request;

wherein the notification message identifies an index position, within the plurality of non-null values identified by the SNMP GET request, of the correct value stored in the SNMP MIB object.

14. The apparatus of claim 13, wherein the SNMP MIB object specification information is not generally available.

15. The apparatus of claim 13, wherein the SNMP MIB object stores an attribute for a user credential for a protocol other than SNMP.

16. The apparatus of claim 13, wherein the SNMP MIB object stores a username or a password for one member of the following group consisting of:

a telnet protocol, a SSH protocol, a TFTP protocol, a RCP protocol, a SNMP protocol, a TACACS protocol, and a RADIUS protocol.

17. The apparatus of claim 13, wherein the means for determining determines that none of the values matches the correct value of the SNMP MIB object, and wherein the means for transmitting transmits a notification message that includes an error message that describes an encountered problem in determining whether any of the values matches the correct value of the SNMP MIB object.

18. The apparatus of claim 13, wherein the means for transmitting comprises means for storing, in a specified MIB object of the managed device, a notification value indicating whether any of the values matches the correct value of the SNMP MIB object.

19. An apparatus, comprising:

one or more processors; and

a computer-readable storage medium storing one or more sequences of instructions for verifying information on a managed device, wherein execution of the one or more sequences of instructions by the one or more processors causes the one or more processors to perform the steps of;

receiving, from a requester that stores an incorrect attribute value for an SNMP MIB object and that is unable to read and write the SNMP MIB object directly, and unable to obtain MIB object specification information, and that does not have a correct value for the SNMP MIB object, a SNMP GET request identifying an SNMP MIB object and also containing a plurality of non-null values comprising proposals for a correct value of the SNMP MIB object,

wherein the SNMP GET request requests a determination as to whether any of the values matches the correct value stored in the SNMP MIB object of the managed device,

determining whether any of the values matches the correct value stored in the SNMP MIB object; and

completing execution of the SNMP GET request by;

transmitting a notification message indicating whether any of the values matches the correct value of the SNMP MIB object

and without providing the correct value in response to the SNMP GET request;

wherein the notification message identifies an index position, within the plurality of non-null values identified by the SNMP GET request, of the correct value stored in the SNMP MIB object.

20. The apparatus of claim 19, wherein the SNMP MIB object specification information is not available.

21. The apparatus of claim 19, wherein the SNMP MIB object stores an attribute for a user credential for a protocol other than SNMP.

22. The apparatus of claim 19, wherein the SNMP MIB object stores a username or a password for one member of the following group consisting of:

a telnet protocol, a SSH protocol, a TFTP protocol, a RCP protocol, a SNMP protocol, a TACACS protocol, and a RADIUS protocol.

23. The apparatus of claim 19, wherein the determining step results in determining that none of the values matches the correct value of the SNMP MIB object, and wherein the transmitting step comprises transmitting a notification message that includes an error message that describes an encountered problem in determining whether any of the values matches the correct value of the SNMP MIB object.

24. The apparatus of claim 19, wherein the transmitting step comprises the step of storing, in a specified MIB object of the managed device, a notification value indicating whether any of the values matches the correct value of the SNMP MIB object.