Method of request routing re-direction with loop detection and prevention
First Claim
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1. A computer implemented method of request routing redirection, comprising;
- receiving, from a user terminal, a domain name system (DNS) request among a plurality of CDNs connected by CDN interconnection (CDNi), the request including a list of CDN-provider-identifications (IDs) of higher CDNs of a first content delivery network (CDN);
determining, by a processor, whether the request is processable for routing; and
in response to detection the request is not processable, redirecting the request, while preventing a loop of request routing according to the list.
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Abstract
A method of request routing redirection includes: receiving, by a first content delivery network (CDN) among a plurality of CDNs connected by CDN interconnection (CDNi), a domain name system (DNS) request including a list of CDN-provider-identifications (IDs) of higher CDNs, from a client; determining whether the client'"'"'s request is processable; and when the client'"'"'s request is not processable, redirecting the request, while preventing a loop of the request routing on the basis of the list of the CDN-provider-IDs.
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Citations
20 Claims
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1. A computer implemented method of request routing redirection, comprising;
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receiving, from a user terminal, a domain name system (DNS) request among a plurality of CDNs connected by CDN interconnection (CDNi), the request including a list of CDN-provider-identifications (IDs) of higher CDNs of a first content delivery network (CDN); determining, by a processor, whether the request is processable for routing; and in response to detection the request is not processable, redirecting the request, while preventing a loop of request routing according to the list. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computer implemented method of request routing redirection comprising:
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receiving, from a user terminal, a domain name system (DNS) request among a plurality of CDNs connected by CDN interconnection (CDNi), the request including a list of CDN-provider-identifications (IDs) of higher CDNs of a first content delivery network (CDN); returning an Internet protocol (IP) address of a request router of the first CDN to the user terminal; receiving a hypertext transfer protocol (HTTP) request from the user terminal; determining, by a processor, whether the HTTP request is processable for routing; and in response to detection the HTTP request is not processable, redirecting the request, while preventing a loop of the request routing according to the list. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A computer implemented method of request routing redirection, comprising:
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delivering a domain name system (DNS) request including a list of CDN-provider-identifications (IDs) of higher content delivery networks (CDNs) of a first CDN to the first CDN, among a plurality of CDNs connected by CDN interconnection (CDNi); in response to determination, by a processor, the first CDN cannot process the request, receiving a DNS request further including CDN-provider-identifiers (ID) of candidate CDNs selected from lower CDNs of the first CDN in the list; and redirecting the request to a second CDN among the candidate CDNs. - View Dependent Claims (18, 19, 20)
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Specification