公开(公告)号：US10033605B2

公开(公告)日：2018-07-24

申请号：US15604004

申请日：2017-05-24

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Mario A. Santoro ,  Herani Brotman ,  Alan L. Glasser ,  James Miros ,  Oliver Spatscheck ,  Jacobus E. Van der Merwe

IPC: G06F15/16 ,  H04L12/26 ,  H04L29/12 ,  H04L29/08 ,  H04L12/733

Abstract: A system includes first and second cache servers a domain name server, and a route controller. The cache servers are each configured to respond to an anycast address. Additionally, the first cache server is configured to respond to a first unicast address, and the second cache server is configured to respond to a second unicast address. The router controller configured to determine wither the status of the first cache server is non-overloaded, overloaded, or offline. The route controller is further configured to instruct the domain name server to provide the second unicast address when the status is overloaded or offline, and modify routing of the anycast address to direct a content request sent to the anycast address to the second cache server when the status is offline. The domain name server is configured to receive a request from a requestor for a cache server address. Additionally, the domain name server is configured to provide an anycast address to the requestor when the status of the first cache server is non-overloaded, and provide the second unicast address to the requestor when the status of the first cache server is offline or overloaded.

公开(公告)号：US20170257294A1

公开(公告)日：2017-09-07

申请号：US15604004

申请日：2017-05-24

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Mario A. Santoro ,  Herani Brotman ,  Alan L. Glasser ,  James Miros ,  Oliver Spatscheck ,  Jacobus E. Van der Merwe

IPC: H04L12/26 ,  H04L29/08 ,  H04L12/733 ,  H04L29/12

CPC classification number: H04L43/08 ,  H04L29/12066 ,  H04L45/126 ,  H04L61/1511 ,  H04L61/2007 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1021

Abstract: A system includes first and second cache servers a domain name server, and a route controller. The cache servers are each configured to respond to an anycast address. Additionally, the first cache server is configured to respond to a first unicast address, and the second cache server is configured to respond to a second unicast address. The router controller configured to determine wither the status of the first cache server is non-overloaded, overloaded, or offline. The route controller is further configured to instruct the domain name server to provide the second unicast address when the status is overloaded or offline, and modify routing of the anycast address to direct a content request sent to the anycast address to the second cache server when the status is offline. The domain name server is configured to receive a request from a requestor for a cache server address. Additionally, the domain name server is configured to provide an anycast address to the requestor when the status of the first cache server is non-overloaded, and provide the second unicast address to the requestor when the status of the first cache server is offline or overloaded.

公开(公告)号：US20140047109A1

公开(公告)日：2014-02-13

申请号：US14053884

申请日：2013-10-15

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： Mario A. Santoro ,  Herani Brotman ,  Alan L. Glasser ,  James Miros ,  Oliver Spatscheck ,  Jacobus E. Van der Merwe

IPC: H04L12/26

CPC classification number: H04L43/08 ,  H04L29/12066 ,  H04L45/126 ,  H04L61/1511 ,  H04L61/2007 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1021

Abstract: A system includes first and second cache servers a domain name server, and a route controller. The cache servers are each configured to respond to an anycast address. Additionally, the first cache server is configured to respond to a first unicast address, and the second cache server is configured to respond to a second unicast address. The router controller configured to determine wither the status of the first cache server is non-overloaded, overloaded, or offline. The route controller is further configured to instruct the domain name server to provide the second unicast address when the status is overloaded or offline, and modify routing of the anycast address to direct a content request sent to the anycast address to the second cache server when the status is offline. The domain name server is configured to receive a request from a requestor for a cache server address. Additionally, the domain name server is configured to provide an anycast address to the requestor when the status of the first cache server is non-overloaded, and provide the second unicast address to the requestor when the status of the first cache server is offline or overloaded.

Abstract translation: 系统包括第一和第二缓存服务器，域名服务器和路由控制器。 每个缓存服务器都配置为响应任播地址。 此外，第一缓存服务器被配置为响应第一单播地址，并且第二高速缓存服务器被配置为响应第二单播地址。 配置为确定第一个缓存服务器的状态的路由器控制器是非重载的，过载的或离线的。 路由控制器还被配置为当状态过载或离线时，指示域名服务器提供第二单播地址，并且修改任播地址的路由以将发送到任播地址的内容请求定向到第二高速缓存服务器 状态离线 域名服务器被配置为从缓存服务器地址的请求者接收请求。 此外，当第一缓存服务器的状态不重载时，域名服务器被配置为向请求者提供任播地址，并且当第一缓存服务器的状态离线或超载时，向请求者提供第二单播地址 。

公开(公告)号：US10594581B2

公开(公告)日：2020-03-17

申请号：US16042765

申请日：2018-07-23

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Mario A. Santoro ,  Herani Brotman ,  Alan L. Glasser ,  James Miros ,  Oliver Spatscheck ,  Jacobus E. Van der Merwe

IPC: G06F15/16 ,  H04L12/26 ,  H04L29/12 ,  H04L12/733 ,  H04L29/08

Abstract: A system includes first and second cache servers, a domain name server, and a route controller. The cache servers respond to an anycast address. The first and second cache servers respond to first and second unicast addresses respectively. The router controller determines if the first cache server is non-overloaded, overloaded, or offline. The route controller instructs the domain name server to provide the second unicast address when the status is overloaded or offline, and modifies routing of the anycast address to direct a content request sent to the anycast address to the second cache server when the status is offline. The domain name server receives a request from a requestor, and provides an anycast address to the requestor when the status of the first cache server is non-overloaded, and provides the second unicast address to the requestor when the status of the first cache server is offline or overloaded.

公开(公告)号：US20180331925A1

公开(公告)日：2018-11-15

申请号：US16042765

申请日：2018-07-23

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Mario A. Santoro ,  Herani Brotman ,  Alan L. Glasser ,  James Miros ,  Oliver Spatscheck ,  Jacobus E. Van der Merwe

IPC: H04L12/26 ,  H04L29/12 ,  H04L29/08 ,  H04L12/733

CPC classification number: H04L43/08 ,  H04L29/12066 ,  H04L45/126 ,  H04L61/1511 ,  H04L61/2007 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1021

Abstract: A system includes first and second cache servers a domain name server, and a route controller. The cache servers are each configured to respond to an anycast address. Additionally, the first cache server is configured to respond to a first unicast address, and the second cache server is configured to respond to a second unicast address. The router controller configured to determine wither the status of the first cache server is non-overloaded, overloaded, or offline. The route controller is further configured to instruct the domain name server to provide the second unicast address when the status is overloaded or offline, and modify routing of the anycast address to direct a content request sent to the anycast address to the second cache server when the status is offline. The domain name server is configured to receive a request from a requestor for a cache server address. Additionally, the domain name server is configured to provide an anycast address to the requestor when the status of the first cache server is non-overloaded, and provide the second unicast address to the requestor when the status of the first cache server is offline or overloaded.

公开(公告)号：US09667516B2

公开(公告)日：2017-05-30

申请号：US14873618

申请日：2015-10-02

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： Mario A. Santoro ,  Herani Brotman ,  Alan L. Glasser ,  James Miros ,  Oliver Spatscheck ,  Jacobus E. Van der Merwe

IPC: H04L12/26 ,  H04L29/12 ,  H04L12/733 ,  H04L29/08

CPC classification number: H04L43/08 ,  H04L29/12066 ,  H04L45/126 ,  H04L61/1511 ,  H04L61/2007 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1021

Abstract: A system including first and second servers, a domain server, and a route controller is disclosed. The first and second servers are configured to respond to an anycast address and to first and second unicast addresses respectively. The route controller is configured to determine whether the first cache server is non-overloaded, overloaded, or offline, and may instruct the domain name server to provide to provide the second unicast address when the status is overloaded or offline. Routing of the anycast address may be modified so as to direct a content request sent to the anycast address to the second cache server when the status is offline. The domain name server may receive a request for a cache server address and provide the anycast address to the requestor when the status is non-overloaded, and provide the second unicast address when the status is offline or overloaded.

公开(公告)号：US20160028600A1

公开(公告)日：2016-01-28

申请号：US14873618

申请日：2015-10-02

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： Mario A. Santoro ,  Herani Brotman ,  Alan L. Glasser ,  James Miros ,  Oliver Spatscheck ,  Jacobus E. Van der Merwe

IPC: H04L12/26 ,  H04L29/12 ,  H04L29/08

CPC classification number: H04L43/08 ,  H04L29/12066 ,  H04L45/126 ,  H04L61/1511 ,  H04L61/2007 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1021

Abstract: A system includes first and second cache servers a domain name server, and a route controller. The cache servers are each configured to respond to an anycast address. Additionally, the first cache server is configured to respond to a first unicast address, and the second cache server is configured to respond to a second unicast address. The router controller configured to determine wither the status of the first cache server is non-overloaded, overloaded, or offline. The route controller is further configured to instruct the domain name server to provide the second unicast address when the status is overloaded or offline, and modify routing of the anycast address to direct a content request sent to the anycast address to the second cache server when the status is offline. The domain name server is configured to receive a request from a requestor for a cache server address. Additionally, the domain name server is configured to provide an anycast address to the requestor when the status of the first cache server is non-overloaded, and provide the second unicast address to the requestor when the status of the first cache server is offline or overloaded.

Abstract translation: 系统包括第一和第二缓存服务器，域名服务器和路由控制器。 每个缓存服务器都配置为响应任播地址。 此外，第一缓存服务器被配置为响应第一单播地址，并且第二高速缓存服务器被配置为响应第二单播地址。 配置为确定第一个缓存服务器的状态的路由器控制器是非重载的，过载的或离线的。 路由控制器还被配置为当状态过载或离线时，指示域名服务器提供第二单播地址，并且修改任播地址的路由以将发送到任播地址的内容请求定向到第二高速缓存服务器 状态离线 域名服务器被配置为从缓存服务器地址的请求者接收请求。 此外，当第一缓存服务器的状态不重载时，域名服务器被配置为向请求者提供任播地址，并且当第一缓存服务器的状态离线或超载时，向请求者提供第二单播地址 。

公开(公告)号：US09191292B2

公开(公告)日：2015-11-17

申请号：US14053884

申请日：2013-10-15

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： Mario A. Santoro ,  Herani Brotman ,  Alan L. Glasser ,  James Miros ,  Oliver Spatscheck ,  Jacobus E. Van der Merwe

IPC: H04L12/26 ,  H04L29/12 ,  H04L12/733 ,  H04L29/08

CPC classification number: H04L43/08 ,  H04L29/12066 ,  H04L45/126 ,  H04L61/1511 ,  H04L61/2007 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1021

Abstract: A system includes first and second cache servers a domain name server, and a route controller. The cache servers are each configured to respond to an anycast address. Additionally, the first cache server is configured to respond to a first unicast address, and the second cache server is configured to respond to a second unicast address. The router controller configured to determine wither the status of the first cache server is non-overloaded, overloaded, or offline. The route controller is further configured to instruct the domain name server to provide the second unicast address when the status is overloaded or offline, and modify routing of the anycast address to direct a content request sent to the anycast address to the second cache server when the status is offline. The domain name server is configured to receive a request from a requestor for a cache server address. Additionally, the domain name server is configured to provide an anycast address to the requestor when the status of the first cache server is non-overloaded, and provide the second unicast address to the requestor when the status of the first cache server is offline or overloaded.

Abstract translation: 系统包括第一和第二缓存服务器，域名服务器和路由控制器。 每个缓存服务器都配置为响应任播地址。 此外，第一缓存服务器被配置为响应第一单播地址，并且第二高速缓存服务器被配置为响应第二单播地址。 配置为确定第一个缓存服务器的状态的路由器控制器是非重载的，过载的或离线的。 路由控制器还被配置为当状态过载或离线时，指示域名服务器提供第二单播地址，并且修改任播地址的路由以将发送到任播地址的内容请求定向到第二高速缓存服务器 状态离线 域名服务器被配置为从缓存服务器地址的请求者接收请求。 此外，当第一缓存服务器的状态不重载时，域名服务器被配置为向请求者提供任播地址，并且当第一缓存服务器的状态离线或超载时，向请求者提供第二单播地址 。