System and method for controlling trap generation of simple network management protocol (SNMP) by defining and using a trapflag field and a trappeer field in the managed information base (MIB)

• US 6,854,011 B2
• Filed: 12/28/2000
• Issued: 02/08/2005
• Est. Priority Date: 12/29/1999
• Status: Expired due to Fees

• Current Assignee: LG-Ericsson Company Limited (Telefonaktiebolaget LM Ericsson)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Chul
• Primary Examiner(s): Dharia, Rupal
• Assistant Examiner(s): Nguyen, Quang N.
• Application Number:
  US09/749,418
• Publication Number:
  US 20010052010A1
• Time in Patent Office: 1,503 Days
• Field of Search: 709223-224, 709/230, 709/236, 714 48- 49, 714/54, 714/57, 707/10
• US Class Current: 709/224
• 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 for controlling trap generation of an SNMP which is operated between a manager and at least one agent, wherein a TrapFlag field and a Trap Peer field are defined for each management-object resource (each object) in describing an MIB of an SNMP and two or more objects are correlated to define a trap generation condition, so that trap generation can be effectively controlled by defining a trap behavior individually for an object of an SNMP MIB.

Claims

1. A method for controlling trap generation of a SNMP (Simple Network Management Protocol) operated between a manager and at least one agent, comprising:

defining in a MIB (Managed Information Base) a TrapFlag field and a TrapPeer field for each management-object resource and including at least two objects correlated together to define a trap generation condition,

wherein a value of the TrapFlag field is set by the manager to indicate whether or not the agent should issue a Trap message for the corresponding object, and

wherein a value of the TrapPeer field is set by the agent to indicate whether or not the trap generation condition is satisfied.

2. The method according to claim 1, wherein the value of the TrapFlag field is set in an ‘

ON’

state or ‘

OFF’

state by the manager.

3. The method according to claim 2, wherein the agent generates a trap for a corresponding object when the TrapFlag field is in the ‘

ON’

state, and while the agent does not generate a trap when the TrapFlag field is in the ‘

OFF’

state.

4. The method according to claim 1, wherein the TrapPeer field is set in an ‘

ON’

state or an ‘

OFF’

state by the agent.

5. The method according to claim 4, wherein the agent sets the TrapPeer field in the ‘

ON’

state when a state of an object satisfies a trap generation condition.

6. A method for controlling trap generation of an SNMP (Simple Network Management Protocol) operated between a manager and at least one agent, comprising:

defining a TrapFlag field and a TrapPeer field in a MIB (Managed Information Base) of an agent;

setting a TrapFlag field value according to a message outputted from the manager;

setting a TrapPeer field value for each object by the agent according to a Trap generation condition defined in the MIB; and

generating a trap for an object according to the values of the TrapFlag field and the TrapPeer field.

7. The method according to claim 6, wherein the TrapFlag field is a field for indicating whether a trap is to be generated for each object described in the MIB.

8. The method according to claim 6, wherein the TrapPeer field is a field for defining a trap generation condition for an object.

9. The method according to claim 6, wherein the agent sets the TrapPeer field in the ‘

ON’

state when the state of an object satisfies a trap generation condition.

10. The method according to claim 6, wherein the trap generation condition is defined by correlating at least two objects.

11. The method according to claim 6, wherein generating the trap comprises:

searching the TrapFlag field of each object when it comes to a trap generation period;

checking a state of the TrapPeer field when the TrapFlag is in an ‘

ON’

state; and

generating a trap for a corresponding object when the TrapPeer is in the ‘

ON’

state.

12. The method according to claim 11, wherein when the TrapFlag is in the ‘

OFF’

state, a trap is not generated.

13. The method according to claim 11, wherein when the TrapFlag is in the ‘

ON’

state and the TrapPeer is in the ‘

OFF’

state, a trap is not generated.

14. A method for controlling trap generation of an SNMP (Simple Network Management Protocol) comprising:

defining a TrapFlag field and a TrapPeer field in a MIB (Managed Information Base) of an agent; and

generating a trap for an object according to values of the defined TrapFlag field and the TrapPeer field,

wherein generating the trap comprises;

searching the TrapFlag field of each object when it comes to a trap generation period;

checking a state of the TrapPeer field when the TrapFlag field is in an ON state; and

generating a trap for a corresponding object when the TrapPeer field is in the ON state.

15. The method according to claim 14, wherein the TrapFlag field is a field for indicating whether a trap is to be generated for each object described in the MIB.

16. The method according to claim 14, wherein the TrapPeer field is a field for defining a trap generation condition for an object.

17. The method according to claim 14, further comprising:

setting the TrapFlag field value according to a message outputted from the manager; and

setting the TrapPeer field value for each object in the agent according to trap generation conditions defined in the MIB.

18. The method according to claim 17, wherein the manager outputs a message to set the TrapFlag field of an object of which state is not changed in an ‘

OFF’

state.

19. The method according claim 17, wherein the trap generation condition is defined by correlating at least two objects.

20. The method according to claim 17, wherein the agent sets the TrapPeer field in the ‘

ON’

state when the state of an object satisfies a trap generation condition.

21. A SNMP (Simple Network Management Protocol) management system, comprising:

a MIB (Managed Information Base) including definitions for a TrapFlag field and a TrapPeer field for each management-object resource to define a trap generation condition;

an agent configured to set a value of the TrapPeer field to indicate whether or not the trap operation condition is satisfied; and

a manager connected to the agent and configured to set a value of the TrapFlag field to indicate whether or not the agent should issue a Trap message for the corresponding object when the trap condition is satisfied.

22. The system of claim 21, wherein the generation condition includes at least two objects correlated together and which must be met to satisfy the trap generation condition.

23. The system according to claim 21, wherein the agent generates a trap for a corresponding object when the TrapFlag field is in the ‘

ON’

state, and the agent does not generate a trap when the TrapFlag field is in the ‘

OFF’

state.

24. The system according to claim 21, the agent sets the TrapPeer field is an ‘

ON’

state when a state of an object satisfies the trap generation condition.