Approach for managing mobile agents in networks

• US 8,103,715 B1
• Filed: 06/11/2002
• Issued: 01/24/2012
• Est. Priority Date: 06/11/2002
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Roberts, Kenneth John
• Primary Examiner(s): Chea, Philip
• Assistant Examiner(s): NASH, LASHANYA RENEE
• Application Number:
  US10/170,323
• Time in Patent Office: 3,514 Days
• Field of Search: 709227-228, 709201-203, 709223-225, 718/100, 714/4, 714/4.1, 726 3- 4, 726/26, 726/27
• US Class Current: 709/202
• CPC Class Codes: G06F 9/4875 with migration policy, e.g. auction, contract negotiation
• CPC Class Codes: H04L 41/048 mobile agents

Abstract

An approach for managing mobile agents in a network generally involves configuring a mobile agent in a secure manner such that the mobile agent will automatically terminate itself if the mobile agent cannot communicate with a specified entity before moving or the mobile agent cannot successfully communicate with a specified entity within a specified period of time. According to another embodiment, if a management process cannot communicate with a mobile agent within a specified period of time, then the management process attempts to cause the termination of the mobile agent. The management process may contact another management process that has the ability to terminate the mobile agent and request that other management process to cause the termination of the mobile agent. According to another embodiment, the management process may cause the creation and dispatch of a “hunter-killer” mobile agent configured to locate and cause the termination of other mobile agents.

Claims

1. A computer-implemented method for managing a mobile agent in a network, wherein the mobile agent is configured with at least a capability to cause itself to move between nodes in the network, the computer-implemented method comprising:

detecting that the mobile agent has moved from a first network element in the network to a second network element in the network;

in response to detecting that the mobile agent has moved from the first network element in the network to the second network element in the network, determining whether a network management process received a request issued by the mobile agent to perform the move from the first network element in the network to the second network element in the network;

in response to determining that the network management process received the request issued by the mobile agent to perform the move from the first network element in the network to the second network element in the network, determining whether the mobile agent moved from the first network element in the network to the second network element in the network prior to the network management process receiving from the mobile agent the request issued by the mobile agent to perform the move from the first network element in the network to the second network element in the network; and

in response to determining that the mobile agent moved from the first network element in the network to the second network element in the network prior to the network management process receiving from the mobile agent a request issued by the mobile agent to perform the move from the first network element in the network to the second network element in the network, the network management process causing the mobile agent to be terminated.

2. The computer-implemented method as recited in claim 1, wherein the mobile agent is further configured with a capability to cause itself to be terminated.

3. The computer-implemented method as recited in claim 1, wherein the network management process causing the mobile agent to be terminated includes the management process itself causing the mobile agent to be terminated.

4. The computer-implemented method as recited in claim 1, wherein:

the mobile agent is a first mobile agent, and

the network management process causing the mobile agent to be terminated includes the network management process causing a second mobile agent to be created and deployed on the network, wherein the second mobile agent is configured with a capability to at least cause itself to move between nodes in the network and to locate and cause the termination of the first mobile agent.

5. A non-transitory computer-readable medium for managing a mobile agent in a network, wherein the mobile agent is configured with at least a capability to cause itself to move between nodes in the network, the computer-readable medium storing instructions which, when processed by one or more processors, causes:

detecting that the mobile agent has moved from a first network element in the network to a second network element in the network;

in response to detecting that the mobile agent has moved from the first network element in the network to the second network element in the network, determining whether a network management process received a request issued by the mobile agent to perform the move from the first network element in the network to the second network element in the network;

in response to determining that the network management process received the request issued by the mobile agent to perform the move from the first network element in the network to the second network element in the network, determining whether the mobile agent moved from the first network element in the network to the second network element in the network prior to the network management process receiving from the mobile agent the request issued by the mobile agent to perform the move from the first network element in the network to the second network element in the network; and

in response to determining that the mobile agent moved from the first network element in the network to the second network element in the network prior to the network management process receiving from the mobile agent a request issued by the mobile agent to perform the move from the first network element in the network to the second network element in the network, the network management process causing the mobile agent to be terminated.

6. The non-transitory computer-readable medium as recited in claim 5, wherein the mobile agent is further configured with a capability to cause itself to be terminated.

7. The non-transitory computer-readable medium as recited in claim 5, wherein the network management process causing the mobile agent to be terminated includes the management process itself causing the mobile agent to be terminated.

8. The non-transitory computer-readable medium as recited in claim 5, wherein:

the mobile agent is a first mobile agent, and

the network management process causing the mobile agent to be terminated includes the network management process causing a second mobile agent to be created and deployed on the network, wherein the second mobile agent is configured with a capability to at least cause itself to move between nodes in the network and to locate and cause the termination of the first mobile agent.

9. An apparatus for managing a mobile agent in a network, wherein the mobile agent is configured with at least a capability to cause itself to move between nodes in the network, the apparatus comprising:

one or more processors; and

a memory storing instructions which, when processed by the one or more processors, causes;

detecting that the mobile agent has moved from a first network element in the network to a second network element in the network;

in response to detecting that the mobile agent has moved from the first network element in the network to the second network element in the network, determine whether a network management process received a request issued by the mobile agent to perform the move from the first network element in the network to the second network element in the network;

in response to determining that the network management process received the request issued by the mobile agent to perform the move from the first network element in the network to the second network element in the network, determine whether the mobile agent moved from the first network element in the network to the second network element in the network prior to the network management process receiving from the mobile agent the request issued by the mobile agent to perform the move from the first network element in the network to the second network element in the network; and

in response to determining that the mobile agent moved from the first network element in the network to the second network element in the network prior to the network management process receiving from the mobile agent a request issued by the mobile agent to perform the move from the first network element in the network to the second network element in the network, causing the network management process to cause the mobile agent to be terminated.

10. The apparatus as recited in claim 9, wherein the mobile agent is further configured with a capability to cause itself to be terminated.

11. The apparatus as recited in claim 9, wherein the memory stores additional instructions which, when processed by the one or more processors, causes the mobile agent to be terminated by requesting that a management process cause the mobile agent to be terminated.

12. The apparatus as recited in claim 9, wherein:

the mobile agent is a first mobile agent, and

the apparatus is further configured to cause a second mobile agent to be created and deployed on the network, wherein the second mobile agent is configured with a capability to at least cause itself to move between nodes in the network and to locate and cause the termination of the first mobile agent.