Facilitating resource access using prioritized multicast responses to a discovery request

• US 7,343,395 B2
• Filed: 03/29/2002
• Issued: 03/11/2008
• Est. Priority Date: 03/29/2002
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Eatough, David A., Olsen, Gregory P.
• Primary Examiner(s): Vaughn; William
• Assistant Examiner(s): SHAW, PELING ANDY
• Application Number:
  US10/112,103
• Publication Number:
  US 20030187931A1
• Time in Patent Office: 2,174 Days
• Field of Search: 709/205, 709/201, 709/202, 709/203, 709/217, 709/246, 709/216, 709/219, 709/229, 370/546, 710/1
• US Class Current: 709/216
• CPC Class Codes: H04L 12/18 for broadcast or conference , e.g. multicast
• CPC Class Codes: H04L 67/288 Distributed intermediate devices, i.e. intermediate devices for interaction with other intermediate devices on the same level
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 67/5682 Policies or rules for updating, deleting or replacing the stored data
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

Systems and methods are provided to facilitate resource access using prioritized multicast responses to a discovery request.

Claims

1. A method of facilitating access to resources through a network, comprising:

receiving, at a first agent, a second agent'"'"'s response to a third agent'"'"'s discovery request associated with an executable file, wherein (i) the discovery request was transmitted from the third agent to the second agent, and (ii) the response to the discovery request is transmitted from the second agent to both the first agent and the third agent, wherein the third agent'"'"'s discovery request comprises;

an agent identifier, a file name associated with the executable file, a file path, a file size, a file date, and a priority value;

storing, in response to said receiving, an indication of at least one of the second or third agents in a cache of the first agent even when the first agent does not currently require the executable file, wherein the indication specifies where the executable file in the response is located;

removing the indication of at least one of the second or third agents from the cache at a pre-determined time;

if a new response has a higher priority than the response associated with the stored indication, the stored indication is replaced with an indication associated with the new response; and

if selecting an agent to retrieve the executable file, selecting the agent based on the priority value, wherein the agent that reports a highest priority value is selected.

2. The method of claim 1, wherein the first agent comprises at least one of:

(i) a network device, (ii) a personal computer, or (iii) a server.

3. The method of claim 1, wherein said receiving is associated with at least one of:

(i) a communication network, (ii) a peer-to-peer network, or (iii) a packet network.

4. The method of claim 1, wherein the received response comprises a multicast or broadcast response.

5. The method of claim 1, wherein the third agent'"'"'s discovery request further includes at least one of:

a cyclic redundancy checking value, a hash value, or a remote location identifier.

6. The method of claim 1, wherein the third agent'"'"'s discovery request indicates that the third agent is attempting to receive the executable file.

7. The method of claim 6, wherein the received response indicates that the second agent is able to provide at least a portion of the executable file.

8. The method of claim 1, wherein the third agent'"'"'s discovery request indicates that the third agent is attempting to provide the executable file.

9. The method of claim 8, wherein the received response indicates that the second agent wants to receive at least a portion of the executable file.

10. The method of claim 1, wherein said storing comprises storing information associated with a plurality of responses in the cache.

11. The method of claim 1, wherein said storing comprises storing information associated with a plurality of executable files in the cache.

12. The method of claim 1, further comprising:

determining at the first agent that the executable file will be accessed;

retrieving the stored indication from the cache; and

accessing the executable file in accordance with the stored indication.

13. The method of claim 12, wherein said accessing is associated with at least one of:

(i) the second agent or (ii) the third agent.

20. The method of claim 1, wherein each agent monitors a priority value included in another agent'"'"'s response to the discovery request.

21. The method of claim 1, wherein the priority value is based on a maximum speed at which an agent can transmit.

14. A device, comprising:

a processor; and

a storage device adapted to communicate with said processor and storing instructions adapted to be executed by said processor to;

receive, at a first agent, a second agent'"'"'s response to a third agent'"'"'s discovery request associated with an executable file, wherein (i) the discovery request was transmitted from the third agent to the second agent, and (ii) the response to the discovery request is transmitted from the second agent to both the first agent and the third agent, wherein the third agent'"'"'s discovery request comprises;

an agent identifier, a file name associated with the executable file, a file path, a file size, a file date, and a priority value;

store, in response to said receiving, an indication of at least one of the second or third agents in a cache of the first agent even when the first agent does not currently require the executable file, wherein the indication specifies where the executable file in the response is located;

remove the indication of at least one of the second or third agents from the cache at a pre-determined time;

if a new response has a higher priority than the response associated with the stored indication, the stored indication is replaced with an indication associated with the new response; and

if selecting an agent to retrieve the executable file, selecting the agent based on the priority value, wherein the agent that reports a highest priority value is selected.

15. The device of claim 14, wherein said storage device further stores a local response cache.

16. A medium storing instructions adapted to be executed by a processor to perform a method of facilitating access to resources, said method comprising:

receiving, at a first agent, a second agent'"'"'s response to a third agent'"'"'s discovery request associated with an executable file, wherein (i) the discovery request was transmitted from the third agent to the second agent, and (ii) the response to the discovery request is transmitted from the second agent to both the first agent and the third agent, wherein the third agent'"'"'s discovery request comprises;

an agent identifier, a file name associated with the executable file, a file path, a file size, a file date, and a priority value;

storing, in response to said receiving, an indication of at least one of the second or third agents in a cache of the first agent even when the first agent does not currently require the executable file, wherein the indication specifies where the executable file in the response is located;

removing the indication of at least one of the second or third agents from the cache at a pre-determined time;

if a new response has a higher priority than the response associated with the stored indication, the stored indication is replaced with an indication associated with the new response; and

if selecting an agent to retrieve the executable file, selecting the agent based on the priority value, wherein the agent that reports a highest priority value is selected.

17. The medium of claim 16, wherein said method further comprises:

determining at the first agent that the executable file will be accessed;

retrieving information from the cache; and

accessing the resource in accordance with the retrieved information.

18. A computer-implemented method of facilitating access to files through a peer-to-peer network, comprising:

receiving, at a first device, a second device'"'"'s multicast response to a third device'"'"'s discovery request associated with an executable file, the response including a device identifier, a file identifier, and a priority value, wherein (i) the discovery request was transmitted from the third device to the second device, and (ii) the multicast response to the discovery request was transmitted from the second device to both the first device and the third device, wherein the third agent'"'"'s discovery request comprises;

an agent identifier, a file name associated with the executable file, a file path, a file size, a file date, and a priority value that indicates an ability to exchange information;

storing, in response to said receiving, an indication of at least one of the second or third devices in a local response cache, the local response cache including information associated with a plurality of responses and a plurality of executable files, wherein the indication specifies where the executable file in the response is located;

after said storing, determining at the first device that the executable file will be accessed;

retrieving the indication from the local response cache;

accessing the executable file via at least one of the second device and the third device based on the priority value associated with the second device and a priority value associated with the third device;

removing the indication of at least one of the second or the third devices from the cache at a pre-determined time;

if a new response has a higher priority than the response associated with the stored indication, the stored indication is replaced with an indication associated with the new response;

if selecting an agent to retrieve the executable file, selecting the agent based on the priority value, wherein the agent that reports a highest priority value is selected.

19. The method of claim 18, wherein the first device comprises a personal computer associated with the peer-to-peer network.