Universal naming scheme for peer-to-peer resources

• US 7,734,817 B2
• Filed: 02/25/2005
• Issued: 06/08/2010
• Est. Priority Date: 11/22/2000
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Bjorner, Nikolaj S., Breunig, Markus M., Teodosiu, Dan
• Primary Examiner(s): Follansbee; John
• Assistant Examiner(s): Bayard; Djenane M
• Application Number:
  US11/067,569
• Publication Number:
  US 20050195839A1
• Time in Patent Office: 1,929 Days
• Field of Search: 709/238, 709/207, 709/229, 709/219, 709/245, 709/217, 709/218, 709/212
• US Class Current: 709/245
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 61/4552 Lookup mechanisms between a plurality of directories; Synchronisation of directories, e.g. metadirectories
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04L 67/1046 Joining mechanisms
• CPC Class Codes: H04L 67/1063 Discovery through centralising entities

Abstract

Peer devices register with a resource locator service so that the peer devices can be uniquely identified in a networking environment. An addressing scheme addresses a peer resource in the networking environment based on the unique identifier of a peer device that is a master publisher of the resource. Based on the addressing scheme, the resource locator service can track the location of the master publisher of the resource as well as additional locations of peer devices that have cached the resource and made it available. In various embodiments, the resource locator service can service requests for peer resources by providing a list of locations where the resource is expected to be available or, in the case of non-compatible requester, provide access to the resource itself.

Claims

1. A method for use with a plurality of peer-to-peer realms on a network, each realm having a unique realm name on the network such that each peer-to-peer realm is uniquely identified by its corresponding realm name, the method comprising:

receiving a resource address for a peer resource available on one of the peer-to-peer realms, the resource address comprising;

a locator service name for a locator service included in a peer-to-peer realm that tracks where peer resources are expected to be available among a plurality of peer devices included in the peer-to-peer realm;

a master publisher name for a peer device included in the peer-to-peer networking environment among the plurality of peer devices that is a master publisher of the peer resource;

a path name for a master copy of the peer resource within the master publisher;

wherein said resource address uniquely names the peer resource in the corresponding peer-to-peer realm; and

based on the realm name in the peer resource address, determining that the peer resource address is an address of a resource on the peer-to-peer realm corresponding to the realm name, and in response using at least part of the resource address to obtain from the locator service a plurality of peer device locations where the peer resource is expected to be available within the peer-to-peer realm, said plurality of peer device locations to enable access to the peer resource at any one or more corresponding peer devices.

2. The method of claim 1 wherein the resource address for the peer resource further comprises an access protocol name for an access protocol used in the peer-to-peer realm.

3. The method of claim 2 wherein the resource address is in the form of a Uniform Resource Locator (URL) comprising <

the access protocol>

;

//<

the locator service name>

/<

the master publisher name>

/<

the path name>

.

4. The method of claim 1 wherein the address comprises a URL in a form that is compatible with web browsers.

5. A machine readable storage medium having stored thereon machine executable instructions to implement a method for use with a plurality of peer-to-peer realms on a network, each realm having a unique realm name on the network such that each peer-to-peer realm is uniquely identified by a corresponding realm name, the method comprising:

receiving a resource address for a peer resource available on one of the peer-to-peer realms, the peer resource address comprising;

a locator service name for a locator service included in a peer-to-peer realm that tracks where a peer resource is expected to be available among a plurality of peer devices included in the peer-to-peer realm;

a master publisher name for a peer device included in the peer-to-peer networking environment among the plurality of peer devices that is a master publisher of the peer resource;

a path name for a master copy of the peer resource within the master publisher;

wherein said resource address uniquely names the peer resource in the corresponding peer-to-peer realm; and

based on the realm name in the peer resource address, determining that the peer resource address is an address of a resource on the peer-to-peer realm corresponding to the realm name, and in response using at least part of the resource address to obtain from the locator service a plurality of peer device locations where the peer resource is expected to be available within the peer-to-peer realm, said plurality of peer device locations to enable access to the peer resource at anyone or more corresponding peer devices.

6. The machine readable storage medium of claim 5 wherein the resource address for the peer resource further comprises an access protocol name for an access protocol used in the peer-to-peer realm.

7. The machine readable storage medium of claim 6 wherein the address is in the form of a Uniform Resource Locator (URL) comprising <

the access protocol>

;

//<

the locator service name>

/<

the master publisher name>

/<

the path name>

.

8. The machine readable storage medium of claim 5 wherein the address comprises a URL in a format compatible with web browsers.

9. An apparatus comprising a server device, the server device configured to perform a process for use with a plurality of peer-to-peer realms on a network, each realm having a unique realm name on the network such that each peer-to-peer realm is uniquely identified by a corresponding realm name, the process comprising:

receiving a resource address for a peer resource available on one of the peer-to-peer realms, the peer resource address comprising;

a locator service name for a locator service included in the peer-to-peer realm that tracks where a peer resource is expected to be available among a plurality of peer devices in the peer-to-peer realm;

a master publisher name for a peer device included in the peer-to-peer realm among the plurality of peer devices included in the peer-to-peer realm that is a master publisher of the peer resource;

a path name for a master copy of the peer resource within the master publisher;

wherein said resource address uniquely names the peer resource in the peer-to-peer realm; and

based on the realm name in the peer resource address, determining that the peer resource address is an address of a resource on the peer-to-peer realm corresponding to the realm name, and in response using at least part of the resource address to obtain from the locator service a plurality of peer device locations within the peer-to-peer realm where the peer resource is expected to be available, said plurality of peer device locations within the peer-to-peer realm to enable access to the peer resource at any one or more corresponding peer devices included in the peer-to-peer realm.

10. An apparatus according to claim 9, wherein the server device comprises a gateway that handles URLs for web pages and URLs comprising resource addresses of peer resources, and wherein the gateway distinguishes between URLs for web pages and URLs of peer resources based on the presence of realm names in the URLS of the peer resources.