Abstract: Enhanced packet redirect capabilities are disclosed herein for draining traffic to a server. In an implementation, a server in an infrastructure service receives a packet from a stateless load balancer. The packet may comprise a request for content. A user space program on the server determines whether a connection identified in the packet belongs to the server. If the connection belongs to the server, the user space program handles the request for the content. If not, the server forwards the packet to a secondary server in the infrastructure service. The secondary server, to which the connection may belong, can then handle the request.

Abstract: Systems, methods, apparatuses, and software for a content delivery network that caches content for delivery to end user devices is presented. In one example, a content delivery network (CDN) is presented having a plurality of cache nodes that cache content for delivery to end user devices. The CDN includes an anonymization node configured to establish anonymized network addresses for transfer of content to cache nodes from one or more origin servers that store the content before caching by the CDN. The anonymization node is configured to provide indications of relationships between the anonymized network addresses and the cache nodes to a routing node of the CDN. The routing node is configured to route the content transferred by the one or more origin servers responsive to content requests of the cache nodes based on the indications of the relationships between the anonymous network addresses to the cache nodes.

Abstract: Enhanced packet redirect capabilities are disclosed herein for draining traffic to a server. In an implementation, a server in an infrastructure service receives a packet from a stateless load balancer. The packet may comprise a request for content. A user space program on the server determines whether a connection identified in the packet belongs to the server. If the connection belongs to the server, the user space program handles the request for the content. If not, the server forwards the packet to a secondary server in the infrastructure service. The secondary server, to which the connection may belong, can then handle the request.

Abstract: Systems, methods, apparatuses, and software for a content delivery network that caches content for delivery to end user devices is presented. In one example, a method includes assigning prefixed network addresses for the sites of the content delivery network, with ones of the prefixed network addresses indicating associated pathways for routing network traffic to reach the sites over more than one backhaul packet network. The method includes announcing groups of the prefixed network addresses to selected ones of the backhaul packet networks, with each to the groups comprising a backhaul network-independent prefixed network address, a backhaul network-specific prefixed network address, and a failover prefixed network address. The method includes receiving the network traffic at the sites over ones of the backhaul packet networks that are selected among for routing the network traffic by source network addresses indicated in content requests issued from the sites.

Abstract: Enhanced packet redirect capabilities are disclosed herein for draining traffic to a server. In an implementation, a server in an infrastructure service receives a packet from a stateless load balancer. The packet may comprise a request for content. A user space program on the server determines whether a connection identified in the packet belongs to the server. If the connection belongs to the server, the user space program handles the request for the content. If not, the server forwards the packet to a secondary server in the infrastructure service. The secondary server, to which the connection may belong, can then handle the request.

Abstract: Systems, methods, apparatuses, and software for a content delivery network that caches content for delivery to end user devices is presented. In one example, a content delivery network (CDN) is presented having a plurality of cache nodes that cache content for delivery to end user devices. The CDN includes an anonymization node configured to establish anonymized network addresses for transfer of content to cache nodes from one or more origin servers that store the content before caching by the CDN. The anonymization node is configured to provide indications of relationships between the anonymized network addresses and the cache nodes to a routing node of the CDN. The routing node is configured to route the content transferred by the one or more origin servers responsive to content requests of the cache nodes based on the indications of the relationships between the anonymous network addresses to the cache nodes.

Abstract: Systems, methods, apparatuses, and software for an edge network that serves content to end user devices is presented. In one example, a method includes establishing domain name relationships for use by a top-level DNS to recurse DNS queries to a DNS node associated with the edge network. The method also includes establishing address correlations between prefixed IPv6 network addresses and PQDNs that comprise indicators for at least a routing provider identifier and a server node grouping. The method also includes receiving recursed DNS queries and responsively translating domain names in the recursed DNS queries into associated IPv6 network addresses to reach content indicated by the domain names, the associated IPv6 network addresses each determined by at least selecting one of the prefixed IPv6 network addresses according to a desired routing provider and a desired server node grouping indicated in the PQDNs.

Abstract: Systems, methods, apparatuses, and software for a content delivery network that caches content for delivery to end user devices is presented. In one example, a method includes assigning prefixed network addresses for the sites of the content delivery network, with ones of the prefixed network addresses indicating associated pathways for routing network traffic to reach the sites over more than one backhaul packet network. The method includes announcing groups of the prefixed network addresses to selected ones of the backhaul packet networks, with each to the groups comprising a backhaul network-independent prefixed network address, a backhaul network-specific prefixed network address, and a failover prefixed network address. The method includes receiving the network traffic at the sites over ones of the backhaul packet networks that are selected among for routing the network traffic by source network addresses indicated in content requests issued from the sites.

Abstract: Described herein are methods, systems, and software for accommodating failover of a content node in a content delivery network. In one example, a method of operating a content node includes receiving a communication for an end user device from a control node, wherein an interrupted content node previously handled the communication. The method further includes determining if the communication includes a synchronization packet and identifying connection information for the communication. The method also provides, if the communication includes a synchronization packet, accepting the communication and handling delivery for the end user device. The method also includes, if the communication does not include the synchronization packet, determining if a match exists between the connection information for the communication and connection information stored in a flow table, and handling the communication based on the match.

Abstract: Systems, methods, apparatuses, and software for a content delivery network that caches content for delivery to end user devices is presented. In one example, a content delivery network (CDN) is presented having a plurality of cache nodes that cache content for delivery to end user devices. The CDN includes an anonymization node configured to establish anonymized network addresses for transfer of content to cache nodes from one or more origin servers that store the content before caching by the CDN. The anonymization node is configured to provide indications of relationships between the anonymized network addresses and the cache nodes to a routing node of the CDN. The routing node is configured to route the content transferred by the one or more origin servers responsive to content requests of the cache nodes based on the indications of the relationships between the anonymous network addresses to the cache nodes.

Abstract: Systems, methods, apparatuses, and software for a content delivery network that caches content for delivery to end user devices is presented. In one example, a method includes establishing address translations which translate domain names into network addresses usable by the end user devices for reaching content at the cache nodes, with portions of the network addresses comprising stenographic information, and responsive to domain name translation requests from the end user devices, providing ones of the network addresses. The method includes receiving content requests transferred by the end user devices that comprise the network addresses, and performing one or more actions based on the stenographic information in the network addresses.

Abstract: Systems, methods, apparatuses, and software for a content delivery network that caches content for delivery to end user devices is presented. In one example, a method includes establishing address translations which translate domain names into network addresses usable by the end user devices for reaching content at the cache nodes, with portions of the network addresses comprising stenographic information, and responsive to domain name translation requests from the end user devices, providing ones of the network addresses. The method includes receiving content requests transferred by the end user devices that comprise the network addresses, and performing one or more actions based on the stenographic information in the network addresses.

Abstract: Systems, methods, apparatuses, and software for a content delivery network that caches content for delivery to end user devices is presented. In one example, a method includes assigning prefixed network addresses for the sites of the content delivery network, with ones of the prefixed network addresses indicating associated pathways for routing network traffic to reach the sites over more than one backhaul packet network. The method includes announcing groups of the prefixed network addresses to selected ones of the backhaul packet networks, with each to the groups comprising a backhaul network-independent prefixed network address, a backhaul network-specific prefixed network address, and a failover prefixed network address. The method includes receiving the network traffic at the sites over ones of the backhaul packet networks that are selected among for routing the network traffic by source network addresses indicated in content requests issued from the sites.

Abstract: Systems, methods, apparatuses, and software for a content delivery network that caches content for delivery to end user devices is presented. In one example, a method includes assigning prefixed network addresses for the sites of the content delivery network, with ones of the prefixed network addresses indicating associated pathways for routing network traffic to reach the sites over more than one backhaul packet network. The method includes announcing groups of the prefixed network addresses to selected ones of the backhaul packet networks, with each to the groups comprising a backhaul network-independent prefixed network address, a backhaul network-specific prefixed network address, and a failover prefixed network address. The method includes receiving the network traffic at the sites over ones of the backhaul packet networks that are selected among for routing the network traffic by source network addresses indicated in content requests issued from the sites.

Abstract: Described herein are methods, systems, and software for accommodating failover of a content node in a content delivery network. In one example, a method of operating a content node includes receiving a communication for an end user device from a control node, wherein an interrupted content node previously handled the communication. The method further includes determining if the communication includes a synchronization packet and identifying connection information for the communication. The method also provides, if the communication includes a synchronization packet, accepting the communication and handling delivery for the end user device. The method also includes, if the communication does not include the synchronization packet, determining if a match exists between the connection information for the communication and connection information stored in a flow table, and handling the communication based on the match.

Abstract: Systems, methods, apparatuses, and software for an edge network that serves content to end user devices is presented. In one example, a method includes establishing domain name relationships for use by a top-level DNS to recurse DNS queries to a DNS node associated with the edge network. The method also includes establishing address correlations between prefixed IPv6 network addresses and PQDNs that comprise indicators for at least a routing provider identifier and a server node grouping. The method also includes receiving recursed DNS queries and responsively translating domain names in the recursed DNS queries into associated IPv6 network addresses to reach content indicated by the domain names, the associated IPv6 network addresses each determined by at least selecting one of the prefixed IPv6 network addresses according to a desired routing provider and a desired server node grouping indicated in the PQDNs.

Abstract: Described herein are methods, systems, and software for accommodating failover of a content node in a content delivery network. In one example, a method of operating a control node includes receiving content requests issued by end user devices. The method further provides, for at least a first content request, mapping a first connection between a first end user device and a first content node, the first connection defined by at least a network address of the first end user device and a virtual next hop network address, and directing traffic associated with the first connection to the first content node using at least the virtual next hop network address. The method also includes identifying a service interruption associated with the first content node and, responsive to the service interruption, identifying a second content node to handle the communications for the first connection.

Abstract: Systems, methods, apparatuses, and software for a content delivery network that caches content for delivery to end user devices is presented. In one example, a method includes establishing domain name relationships for use by a top-level DNS to recurse DNS queries to a DNS node associated with the CDN. The method also includes establishing address correlations between prefixed IPv6 network addresses and PQDNs that comprise indicators for at least a routing provider identifier and a cache node grouping. The method also includes receiving recursed DNS queries and responsively translating domain names in the recursed DNS queries into associated IPv6 network addresses to reach content indicated by the domain names, the associated IPv6 network addresses each determined by at least selecting one of the prefixed IPv6 network addresses according to a desired routing provider and a desired cache node grouping indicated in the PQDNs.

Abstract: Described herein are methods, systems, and software for accommodating failover of a content node in a content delivery network. In one example, a method of operating a content node includes receiving a communication for an end user device from a control node, wherein an interrupted content node previously handled the communication. The method further includes determining if the communication includes a synchronization packet and identifying connection information for the communication. The method also provides, if the communication includes a synchronization packet, accepting the communication and handling delivery for the end user device. The method also includes, if the communication does not include the synchronization packet, determining if a match exists between the connection information for the communication and connection information stored in a flow table, and handling the communication based on the match.

Abstract: Systems, methods, apparatuses, and software for a content delivery network that caches content for delivery to end user devices is presented. In one example, a method includes assigning prefixed network addresses for the sites of the content delivery network, with ones of the prefixed network addresses indicating associated pathways for routing network traffic to reach the sites over more than one backhaul packet network. The method includes announcing groups of the prefixed network addresses to selected ones of the backhaul packet networks, with each to the groups comprising a backhaul network-independent prefixed network address, a backhaul network-specific prefixed network address, and a failover prefixed network address. The method includes receiving the network traffic at the sites over ones of the backhaul packet networks that are selected among for routing the network traffic by source network addresses indicated in content requests issued from the sites.