Apparatus and Method for Community Relay Node Discovery

• US 20060242227A1
• Filed: 04/22/2005
• Published: 10/26/2006
• Est. Priority Date: 04/22/2005
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Horton, Noah, Huitema, Christian, Singhal, Sandeep K., Rao, Ravi T., Weisberg, Tomer
• Granted Patent: US 7,788,378 B2
• Time in Patent Office: Days
• US Class Current: 709/203
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 61/4541 Directories for service discovery
• CPC Class Codes: H04L 63/02 for separating internal from external traffic, e.g. firewalls

Abstract

A method of discovering a community relay node within a network community wherein the community relay node is operatively coupled to an access-protected client and adapted to facilitate communication between the access-protected client and a requesting client, includes receiving a request message from a requesting client relating to a request for a community relay node, associating the request message with a serverless name resolution protocol name, selecting a community relay node from among a list of community relay nodes based on the serverless name resolution protocol name, wherein the list of community relay nodes comprises at least one internet protocol address associated with a community relay node, and returning an internet protocol address of the selected community relay node to the requesting client.

Claims

1. A method of discovering a community relay node within a network community, wherein the community relay node is operatively coupled to an access-protected client and adapted to facilitate communication between the access-protected client and a requesting client, the method comprising:

receiving a request message from a requesting client relating to a request for a community relay node;

associating the request message with a serverless name resolution protocol name;

selecting a community relay node from among a list of community relay nodes based on the serverless name resolution protocol name, wherein the list of community relay nodes comprises at least one internet protocol address associated with a community relay node; and

returning an internet protocol address of the selected community relay node to the requesting client.

2. The method of claim 1,

wherein the request message comprises a requested communication protocol type;

wherein associating the request message with a serverless name resolution protocol name comprises associating the request message with a serverless name resolution protocol name for the requested communication protocol type;

wherein selecting a community relay node from among a list of community relay nodes based on the serverless name resolution protocol name comprises selecting a community relay node from among a list of community relay nodes that support the communication protocol type; and

wherein returning an internet protocol address of a community relay node comprises returning an internet protocol address of a community relay node that supports the requested communication protocol type.

3. The method of claim 2, wherein the communication protocol type relates to one of the group consisting of:

a secure sockets layer protocol and a user datagram protocol.

4. The method of claim 1, further comprising:

mapping a domain name system name to the serverless name resolution protocol name;

wherein the request message comprises the domain name system name; and

wherein associating the request message with a serverless name resolution protocol name comprises matching the domain name system name to a serverless name resolution protocol name.

5. The method of claim 1, wherein the request type comprises a domain name service name and a serverless name resolution protocol name encoded in the domain name service name, the method further comprising:

decoding the serverless name resolution protocol name from the domain name system address name; and

resolving the serverless name resolution protocol name to an internet protocol address of a community relay node.

6. The method of claim 1, wherein selecting a community relay node from among a list of community relay nodes based on the serverless name resolution protocol name comprises selecting a community relay node from among a list of community relay nodes based on one of more of the group consisting of:

load balancing, quality of service and proximity of the community relay node to the requesting client.

7. The method of claim 1, further comprising receiving a registration message from a community relay node, wherein the registration message comprises a serverless name resolution protocol name and an internet protocol address of the community relay node;

conducting a serverless name resolution protocol query of the registered community relay node;

receiving a query response from the community relay node;

storing the peer name resolution protocol address and the internet protocol address of the registered community relay node in the list of community relay nodes.

8. A computer readable medium having computer executable instructions for performing steps of a method of bootstrapping communication between a community relay node and a requesting client comprising:

computer executable instructions for receiving a domain name from a requesting client;

computer executable instructions for associating the domain name with a peer name;

computer executable instructions for resolving the peer name to one or more internet protocol addresses, where each internet protocol address relates to a community relay;

computer executable instructions for selecting a community relay node from the one or more resolved internet protocol addresses; and

computer executable instructions for returning the internet protocol address of the selected community relay node to the requesting client.

9. The computer readable medium of claim 8, wherein the domain name comprises a query name and a query type, the computer readable medium further comprising:

computer executable instructions for parsing the domain name into the query name and the query type;

computer executable instructions for associating the query name with a peer name according to the query type; and

computer executable instructions for selecting a community relay node according to the query type.

10. The computer readable medium of claim 9, wherein the query type comprises one of the group consisting of:

a secure sockets layer protocol and a user datagram protocol.

11. The computer readable medium of claim 8, wherein the computer executable instructions for associating the domain name with a peer name comprise computer executable instructions for matching the domain name with to the peer name based on a predetermined map of domain names and peer names.

12. The computer readable medium of claim 8, wherein the computer executable instructions for associating the domain name with a peer name comprise wherein the computer executable instructions for decoding the peer name from the domain name.

13. The computer readable medium of claim 8, wherein the computer executable instructions for selecting a community relay node from the one or more resolved internet protocol addresses comprise computer executable instructions for selecting a community relay node based on one of more of the group consisting of:

load balancing, quality of service and proximity of the community relay node to the requesting client.

14. A computing apparatus, comprising:

a processing apparatus comprising a processor and a memory operatively coupled to the processor,

a domain name system network interface operatively coupled to a network and to the processing apparatus;

a peer name resolution protocol network interface operatively coupled to at least one community relay, to the domain name system network interface and to the processing apparatus;

a first cache associated with a first peer name resolution protocol name and adapted to store internet protocol addresses of a first plurality of community relay nodes, the first cache being operatively coupled to the peer name resolution protocol network interface;

a second cache associated with a second peer name resolution protocol name and adapted to store internet protocol addresses of a second plurality of community relay nodes, the second cache being operatively coupled to the peer name resolution protocol network interface;

the processing apparatus being programmed to receive a request message from a client relating to a request for a community relay node;

the processing apparatus being programmed to resolve the request message to the first peer name resolution protocol name or to the second peer name resolution protocol name;

the processing apparatus being programmed to select a community relay node from the first cache if the request message is resolved to the first peer name resolution protocol name;

the processing apparatus being programmed to select a community relay node from the second cache if the request message is resolved to the second peer name resolution protocol name; and

the processing apparatus being programmed to transmit the internet protocol address of the selected community relay node to the client.

15. The computing apparatus of claim 14, wherein the first peer name resolution protocol name relates to a first communication protocol type and wherein the second peer name resolution protocol type relates to a second communication protocol type.

16. The computing apparatus of claim 15, wherein the first communication protocol type comprises secure sockets layer protocol and the second communication protocol type comprises user data protocol.

17. The computing apparatus of claim 14,

wherein the requesting message comprises a domain name system name of the computing apparatus;

wherein the processing apparatus is programmed to resolve the domain name system name to one of the first peer name resolution protocol name or the second peer name resolution protocol name.

18. The computing apparatus of claim 14, wherein the processing apparatus is programmed to select a community relay node from the first cache or the second cache based on one of more of the group consisting of:

load balancing, quality of service and proximity of the community relay node to the client.

19. The computing apparatus of claim 14,

wherein the programming apparatus is programmed to query a plurality of community relay nodes;

wherein the programming apparatus is programmed to receive data relating to a response from one or more of the plurality of community relay nodes; and

wherein the programming apparatus is programmed to update the first cache or the second cache with the one or more responding community relay nodes.

20. The computing apparatus of claim 19, wherein the programming apparatus is programmed to conduct a peer name resolution of the plurality of community relay nodes.