최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0932162 (2007-10-31) |
등록번호 | US-9203636 (2015-12-01) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 3 인용 특허 : 325 |
A method, operable in a framework wherein resources of a content provider may be delivered to clients from at least two distinct content delivery networks (CDNs). Responsive to a client request, one of the CDNs is selected, the selection being based at least in part on one or more policies set by th
A method, operable in a framework wherein resources of a content provider may be delivered to clients from at least two distinct content delivery networks (CDNs). Responsive to a client request, one of the CDNs is selected, the selection being based at least in part on one or more policies set by the content provider. The client is provided with information associated with the selected CDN. The information may be a domain name such as a CNAME for the selected CDN. The policies may include a load share policy that specifies a relative load share for each CDN, and the selecting may attempt to satisfy the load share policy. Updated content provider policies may be obtained, at regular intervals.
1. A method, operable in a framework wherein resources of a content provider may be delivered to clients from at least one content delivery network (CDN) formed of a plurality of cache servers or from a subscriber server network associated with the content provider, wherein the subscriber server net
1. A method, operable in a framework wherein resources of a content provider may be delivered to clients from at least one content delivery network (CDN) formed of a plurality of cache servers or from a subscriber server network associated with the content provider, wherein the subscriber server network is distinct from the at least one CDN, the method comprising: responsive to receipt of a client request at a name server to resolve a domain name, retrieving policies from a policy database of the name server, the domain name being associated with a request for at least one resource of the content provider, andselecting either the at least one CDN or the subscriber server network, the selecting being based at least in part on one or more of the retrieved policies set by the content provider and at least one other retrieved policy, wherein the one or more retrieved policies set by the content provider relate, at least in part, to delivery of resources on behalf of the content provider; andby hardware in combination with software, providing the client with information associated with the selected network. 2. A method as in claim 1 wherein the information associated with the selected network includes a domain name associated with the selected network. 3. A method as in claim 2 wherein the domain name comprises a CNAME associated with the selected network. 4. A method as in claim 1 wherein the one or more policies set by the content provider include a load share policy that specifies a relative load share for the at least one CDN, and wherein the step of selecting attempts to satisfy the load share policy. 5. The method of claim 1 wherein the selecting is done by a domain name server. 6. A method as in claim 1 further comprising: obtaining at least one updated content provider policy, andwherein the one or more of the retrieved policies set by the content provider and used by the step of selecting include the at least one updated content provider policy. 7. A method as in claim 6 wherein the step of obtaining is repeated at regular intervals. 8. A method as in claim 6 wherein the at least one updated content provider policy includes a load share policy for the at least one CDN. 9. A method as in claim 6 wherein the at least one updated content provider policy is obtained from a location specified by the content provider. 10. A method as in claim 1 further comprising: if the selecting act selects the at least one CDN, then identifying a particular content server in the selected CDN; andproviding the client with an address of the particular content server. 11. The method of claim 1 further comprising: providing an interface for content providers to update the one or more policies set by the content provider. 12. A method, operable in a framework wherein resources of a content provider may be delivered to users from at least two distinct domains, wherein a first domain comprises a subscriber server network associated with the content provider and a second domain comprises a content delivery network (CDN) distinct from the subscriber server network, the method comprising: receiving a request from a client resolver to resolve a first domain name, the request being associated with a client request for one of the resources of the content provider;in response to receipt of the request, retrieving from a policy database of a name server one or more content provider policies relating to delivery of the one of the resources, at least one of the retrieved policies relating to a relative load share for each of the at least two domains, andselecting, based at least in part on the one or more retrieved content provider policies set by the content provider and at least one other retrieved policy, one of the at least two domains; andby hardware in combination with software, providing the client with information associated with the selected domain. 13. A method as in claim 12 wherein the information associated with the selected domain is either (a) a domain name associated with the selected domain or (b) at least one Internet Protocol (IP) address of at least one server in the selected domain. 14. A method as in claim 12 wherein at least one other of the at least two domains corresponds to a second content delivery network domain distinct from the first content delivery network domain and the subscriber server network. 15. A method as in claim 12 wherein the one or more content provider policies include a load share policy that specifies a relative load share for each of the at least two domains, and wherein the step of selecting attempts to satisfy the load share policy. 16. A method as in claim 12 wherein the step of obtaining is repeated at regular intervals. 17. A method as in claim 12 further comprising: identifying a particular content server in the selected domain; andproviding the client with an address of the particular content server. 18. The method of claim 12 further comprising: providing an interface for content providers to update the one or more policies set by the content provider. 19. The method of claim 12 wherein the selecting is done by a domain name server. 20. A method, operable in a framework wherein resources of a content provider may be delivered from at least two distinct domains, wherein a first domain comprises a subscriber server network associated with the content provider and a second domain comprises a content delivery network (CDN) distinct from the subscriber server network, the method comprising: distributing requests to at least one name server to resolve a domain name among the at least two distinct domains based at least in part on one or more load share policies set by the content provider and at least one other policy, the one or more load share policies relating to delivery of content on behalf of the content provider, the one or more load share policies and the at least one other policy being retrieved from a policy database of the at least one name server in response to receipt of at least one of the requests to the at least one name server; andby hardware in combination with software, providing an interface for the content provider to update the one or more load share policies set by the content provider. 21. A method as in claim 20 wherein at least one of the two distinct domains corresponds to a content delivery network domain. 22. The method of claim 20 wherein the distributing is done by a domain name server. 23. A method, operable in a framework consisting of at least one content delivery network (CDN) comprising a plurality of content servers and capable of delivering resources on behalf of at least one subscriber, wherein the subscriber is associated with a subscriber server network distinct from the at least one CDN, the method comprising: in response to receipt of a request at a name server to resolve a domain name associated with a particular client request for subscriber content of a particular subscriber of the at least one subscriber,retrieving from a policy database of a name server one or more policies, the one or more of the retrieved policies including one or more subscriber polices, andselecting either the at least one CDN or the subscriber server network to handle the particular client request for subscriber content, the selecting being based, at least in part, on one or more retrieved subscriber policies of the particular subscriber, the one or more retrieved subscriber policies relating, at least in part, to delivery of resources on behalf of the particular subscriber and at least one other retrieved policy; andby hardware in combination with software, causing the client to be directed to the selected network. 24. A method as in claim 23 wherein the one or more subscriber policies include a subscriber-defined load share policy. 25. A method as in claim 23 wherein the step of causing the client to be directed to the selected network comprises: providing the client with a domain name associated with the selected network. 26. A method as in claim 23 further comprising: if the selecting act selects the CDN, then identifying a particular content server in the selected CDN; and providing the client with an address of the particular content server. 27. The method of claim 23 further comprising: providing an interface for said at least one subscriber to update the one or more subscriber policies. 28. The method of claim 23 wherein the selecting is done by a domain name server.
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