公开(公告)号：US20190327286A1

公开(公告)日：2019-10-24

申请号：US16459130

申请日：2019-07-01

Applicant: LEVEL 3 COMMUNICATIONS, LLC

Inventor： Christopher Newton ,  William R. Power

IPC: H04L29/08 ,  G06F16/955 ,  H04L29/12 ,  G06F16/48

Abstract: A content delivery method, and related apparatus, that involves the operations of receiving a request for a content resource including at least one embedded resource with a tag. Upon identification of the tag, using at least one delivery parameter to generate a modified embedded resource. Embedding the modified embedded resource in a content resource, such as an HTML document. Delivering, such as in response to request from a browser, the content resource with the modified embedded resource.

公开(公告)号：US20190312907A1

公开(公告)日：2019-10-10

申请号：US16449916

申请日：2019-06-24

Applicant: Level 3 Communications, LLC

Inventor： Robert Smith ,  Shawn Marck ,  Christopher Newton

IPC: H04L29/06

Abstract: Embodiments provide system and methods for a DDoS service using a mix of mitigation systems (also called scrubbing centers) and non-mitigation systems. The non-mitigation systems are less expensive and thus can be placed at or near a customer's network resource (e.g., a computer, cluster of computers, or entire network). Under normal conditions, traffic for a customer's resource can go through a mitigation system or a non-mitigation system. When an attack is detected, traffic that would have otherwise gone through a non-mitigation system is re-routed to a mitigation system. Thus, the non-mitigation systems can be used to reduce latency and provide more efficient access to the customer's network resource during normal conditions. Since the non-mitigation servers are not equipped to respond to an attack, the non-mitigation systems are not used during an attack, thereby still providing protection to the customer network resource using the mitigation systems.

公开(公告)号：US20190109772A1

公开(公告)日：2019-04-11

申请号：US16202589

申请日：2018-11-28

Applicant: Level 3 Communications, LLC

Inventor： Laurence R. Lipstone ,  William Crowder ,  Andrew Swart ,  Christopher Newton ,  Lewis Robert Varney

IPC: H04L12/24 ,  H04L29/06 ,  H04L12/911 ,  H04L29/08 ,  G06F9/50

Abstract: A computer-implemented method in a content delivery (CD) network includes determining at least one pseudo client IP address using first log information and second log information. The first log information being from a rendezvous service in the content delivery (CD) network, and includes at least one resolver IP address associated with at least one first request made at the rendezvous service. The second log information is from at least one probe service in the CD network, and includes at least one client IP address associated with at least one second request to the at least one probe service. The method also includes making an association between (i) the at least one pseudo client IP address and (ii) the at least one resolver IP address; and then, responsive to a name resolution request, the name resolution request including the at least one resolver IP address, the rendezvous service using the at least one pseudo client IP address instead of the resolver IP address to resolve the name.

公开(公告)号：US20190104103A1

公开(公告)日：2019-04-04

申请号：US15721500

申请日：2017-09-29

Applicant: Level 3 Communications, LLC

Inventor： Christopher Newton

IPC: H04L29/12 ,  H04L29/08

Abstract: A content provider has a plurality of content provider domain names, and a content delivery network (CDN) allocates a plurality of CDN domain names to the particular content provider. The content provider domain names are mapped to the CDN domain names CDN domain names are bound to corresponding CDN clusters. The binding of the of CDN domain names to corresponding CDN clusters is modified.

公开(公告)号：US10218806B2

公开(公告)日：2019-02-26

申请号：US15645584

申请日：2017-07-10

Applicant: LEVEL 3 COMMUNICATIONS, LLC

Inventor： Christopher Newton ,  Laurence Lipstone ,  David Fullagar

IPC: H04L29/08 ,  H04N7/173 ,  H04N21/222 ,  H04N21/472 ,  H04N21/258 ,  H04N21/231

Abstract: A content delivery network has at least a first tier of servers. A content delivery method includes, at a first server in the first tier of servers, obtaining a request from a client for a resource. If the resource is available at the first server or at a peer of the first server, then the resource is served to the client from the first server. Otherwise, it is determined whether the resource is popular, and if the resource is determined to be popular, then the first server obtains the resource and the first server serves the resource to the client. If the resource is determined not to be popular, the client is directed to a second server, not in the first tier of servers, and the second server serves the resource to the client. The second server may be in a second tier of servers or it may be an origin server.

公开(公告)号：US20190007521A1

公开(公告)日：2019-01-03

申请号：US16101709

申请日：2018-08-13

Applicant: Level 3 Communications, LLC

Inventor： Laurence R. Lipstone ,  William Crowder ,  Andrew Swart ,  Christopher Newton ,  Lewis Robert Varney

IPC: H04L29/08 ,  H04L12/24 ,  H04L29/06 ,  H04L29/12

Abstract: A computer-implemented method in a content delivery network (CDN) comprising multiple content delivery (CD) services including at least one beacon service, the method comprising: at particular CD service in the CDN: (A) obtaining and responding to at least one first request; (B) obtaining and responding to at least one second request; and (C) making a beacon request to a beacon CD service, the beacon request including particular information about: (i) the at least one first request, and (ii) the at least one second request, wherein at least some of the particular information is encoded in the beacon request, wherein the beacon request comprises an HTTP request.

公开(公告)号：US20190007514A1

公开(公告)日：2019-01-03

申请号：US15996849

申请日：2018-06-04

Applicant: LEVEL 3 COMMUNICATIONS, LLC

Inventor： Maksim Yevmenkin ,  Christopher Newton ,  David Fullagar

IPC: H04L29/08 ,  H04L29/06

CPC classification number: H04L67/2842 ,  H04L29/08729 ,  H04L65/4084

Abstract: A content delivery network (CDN) includes multiple cluster sites, including sites with streaming media servers, caching servers and storage devices accessible to the caching servers for storing streaming content. Interface software is configured to initiate retrieval, by a caching server, of electronic streaming resources from the one or more storage devices in response to requests for the electronic streaming resource received by the streaming media server.

公开(公告)号：US10142191B2

公开(公告)日：2018-11-27

申请号：US14105981

申请日：2013-12-13

Applicant: Level 3 Communications, LLC

Inventor： Lewis Robert Varney ,  Laurence R. Lipstone ,  William Crowder ,  Andrew Swart ,  Christopher Newton

IPC: G06F9/50 ,  H04L12/24 ,  H04L29/06 ,  H04L12/911 ,  H04L29/08 ,  G06F12/0808 ,  H04L12/26 ,  H04L29/12

Abstract: A content delivery network (CDN) includes a single autonomous CDN partitioned into multiple virtual CDNs, the multiple virtual CDNs being organized into a CDN hierarchy. Each virtual CDN is allocated separate physical resources. Within the CDN hierarchy, at least one parent virtual CDN has at least one child virtual CDN. A parent virtual CDN grants at least one privilege to at least one child virtual CDN.

公开(公告)号：US10097579B2

公开(公告)日：2018-10-09

申请号：US15707772

申请日：2017-09-18

Applicant: LEVEL 3 COMMUNICATIONS, LLC

Inventor： Robert Smith ,  Shawn Marck ,  Christopher Newton

IPC: H04L29/06

Abstract: Embodiments provide system and methods for a DDoS service using a mix of mitigation systems (also called scrubbing centers) and non-mitigation systems. The non-mitigation systems are less expensive and thus can be placed at or near a customer's network resource (e.g., a computer, cluster of computers, or entire network). Under normal conditions, traffic for a customer's resource can go through a mitigation system or a non-mitigation system. When an attack is detected, traffic that would have otherwise gone through a non-mitigation system is re-routed to a mitigation system. Thus, the non-mitigation systems can be used to reduce latency and provide more efficient access to the customer's network resource during normal conditions. Since the non-mitigation servers are not equipped to respond to an attack, the non-mitigation systems are not used during an attack, thereby still providing protection to the customer network resource using the mitigation systems.

公开(公告)号：US20180167327A1

公开(公告)日：2018-06-14

申请号：US15378608

申请日：2016-12-14

Applicant: Level 3 Communications, LLC

Inventor： Christopher Newton

IPC: H04L12/813 ,  H04L12/911 ,  H04L29/08

Abstract: A computer-implemented method, in a content delivery (CD) network, wherein the CD network delivers content on behalf of multiple content providers. The method includes, at an edge server in the CD network: receiving, from a client, uploaded content for a particular content provider; and determining that the particular content provider is a subscriber to the CD network. Based on the determining, when the particular content provider is determined to be a subscriber to the CD network, uploading the content from the edge server to multiple origin server platforms (OSPs), the uploading being based on at least one policy associated with the particular content provider.