Routing mode and point-of-presence selection service
First Claim
1. A computer-implemented method comprising:
- under control of a hardware computing device configured with specific computer executable instructions;
obtaining, at a first domain name system (DNS) server from a client computing device, a first DNS query, wherein a first point of presence (POP) of a content delivery network (CDN) service provider includes the first DNS server, wherein the first DNS query is associated with a requested resource, wherein the requested resource is associated with a content provider, and wherein the CDN service provider is different from the content provider;
determining whether the CDN service provider has exceeded a threshold content delivery bandwidth for the first POP, wherein the threshold content delivery bandwidth is determined based at least in part on CDN service provider cost information, wherein the CDN service provider cost information indicates a financial cost of content delivery bandwidth for the CDN service provider, and wherein the threshold content delivery bandwidth is less than a maximum available content delivery bandwidth for the first POP;
selecting, at the first DNS server, (a) an alternative resource identifier associated with a second DNS server at a second POP of the CDN service provider or (b) an IP address of a cache component associated with the second POP, if the CDN service provider is determined to have exceeded the threshold content delivery bandwidth for the first POP, wherein the alternative resource identifier includes information for causing a second DNS query to resolve to the second DNS server of the CDN service provider, wherein the alternative resource identifier is a uniform resource locator (URL) and wherein the second DNS server or the cache component at the second POP is suboptimal for servicing the requested resource; and
transmitting, to the client computing device, the alternative resource identifier or the IP address.
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Accused Products
Abstract
Systems and methods for sloppy routing are provided. A client transmits a DNS query corresponding to a requested resource to a content delivery network (CDN) service provider. In some embodiments, the CDN service provider processes the DNS query to determine whether a threshold content delivery bandwidth has been exceeded by data links at cache servers. In other embodiments, additionally or alternatively, the CDN service provider determines whether a content provider has exceeded a threshold network usage that indicates a price at which the CDN service provider to provide content on behalf of the content provider. Using both or either of these thresholds, the CDN service provider can further process the DNS query by providing an alternative resource identifier or a cache IP address, both associated with an alternative POP. In some embodiments, the CDN service provider determines a routing mode for the response to the DNS query.
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Citations
20 Claims
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1. A computer-implemented method comprising:
under control of a hardware computing device configured with specific computer executable instructions; obtaining, at a first domain name system (DNS) server from a client computing device, a first DNS query, wherein a first point of presence (POP) of a content delivery network (CDN) service provider includes the first DNS server, wherein the first DNS query is associated with a requested resource, wherein the requested resource is associated with a content provider, and wherein the CDN service provider is different from the content provider; determining whether the CDN service provider has exceeded a threshold content delivery bandwidth for the first POP, wherein the threshold content delivery bandwidth is determined based at least in part on CDN service provider cost information, wherein the CDN service provider cost information indicates a financial cost of content delivery bandwidth for the CDN service provider, and wherein the threshold content delivery bandwidth is less than a maximum available content delivery bandwidth for the first POP; selecting, at the first DNS server, (a) an alternative resource identifier associated with a second DNS server at a second POP of the CDN service provider or (b) an IP address of a cache component associated with the second POP, if the CDN service provider is determined to have exceeded the threshold content delivery bandwidth for the first POP, wherein the alternative resource identifier includes information for causing a second DNS query to resolve to the second DNS server of the CDN service provider, wherein the alternative resource identifier is a uniform resource locator (URL) and wherein the second DNS server or the cache component at the second POP is suboptimal for servicing the requested resource; and transmitting, to the client computing device, the alternative resource identifier or the IP address. - View Dependent Claims (2, 3, 4)
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5. A computer-implemented method comprising:
under control of a hardware computing device configured with specific computer executable instructions; obtaining, at a first domain name system (DNS) server from a client computing device, a first DNS query, wherein a first point of presence (POP) of a content delivery network (CDN) service provider includes the first DNS server, wherein the first DNS query is associated with a requested resource, and wherein the requested resource is associated with a content provider; determining whether the CDN service provider has exceeded a threshold content delivery bandwidth for the first POP, wherein the threshold content delivery bandwidth is determined based at least in part on CDN service provider financial cost information; selecting, at the first DNS server, (a) an alternative resource identifier associated with a second DNS server at a second POP of the CDN service provider or (b) an IP address of a cache component associated with the second POP, if the CDN service provider is determined to have exceeded the threshold content delivery bandwidth for the first POP, wherein the alternative resource identifier includes information for causing a second DNS query to resolve to the second DNS server of the CDN service provider, wherein the alternative resource identifier is a uniform resource locator (URL) and wherein the second DNS server or the cache component at the second POP is suboptimal for servicing the requested resource; and transmitting, to the client computing device, the alternative resource identifier or the IP address. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system comprising:
a first point of presence (POP) associated with a content delivery network (CDN) service provider, wherein the first POP includes a first domain name system (DNS) server that receives a first DNS query from a client computing device, wherein the first DNS query is associated with a requested resource associated with a content provider, and wherein the first DNS server is operative to; determine whether the CDN service provider has exceeded a threshold bandwidth for a first cache component associated with the first POP, wherein the threshold bandwidth is determined based at least in part on CDN service provider financial cost information; select (a) an alternative resource identifier associated with a second DNS server at a second POP of the CDN service provider or (b) an IP address of a second cache component associated with the second POP, if the CDN service provider is determined to have exceeded the threshold bandwidth for the first cache component associated with the first POP, wherein the alternative resource identifier includes information for causing a second DNS query to resolve to the second DNS server of the CDN service provider, wherein the alternative resource identifier is a uniform resource locator (URL) and wherein the second DNS server or the cache component at the second POP is suboptimal for servicing the requested resource; and transmit, to the client computing device, the alternative resource identifier or the IP address. - View Dependent Claims (16, 17, 18, 19, 20)
Specification