Abstract: A network node (20) operative to adjust chunk size is provided. The network node (20) includes processing circuitry (34) having a processor (36) and memory (38). The memory (38) includes executable instructions which, when executed by the processor (36), configure the processor (36) to: determine at least one measured 5 performance characteristic associated with the network, dynamically adjust a chunk size for caching each of a plurality of segments of at least a portion of content, cause transmission of a content request, according to the dynamic adjustment of the chunk size, for at least one segment of the plurality of segments of at least the portion of the content. The dynamic adjustment of the chunk size is based on the at least one 10 measured performance characteristic associated with the network.

Abstract: A method, Request Router and Traffic Monitor for monitoring a Content Delivery Network effecting requests routing toward delivery nodes (DNs) without using a load balancer and achieving high availability. Iteratively, for each delivery node, sending a monitoring request to the delivery node. If a response indicative of success of the monitoring request is received from the delivery node before the end of a first time interval, setting a status of the delivery node to indicate success. If a response indicative of failure is received before the end of the first time interval, setting the status to indicate failure. If no response is received before the end of the first time interval, setting the status to indicate indetermination. Iteratively, at a second time interval, taking a snapshot of the statuses of the delivery nodes and producing a list of DNs with their statuses to be sent to the RR.

Abstract: A method for monitoring services, in a content delivery network (CDN), having a plurality of delivery nodes used to deliver services requested by end-users comprises: instructing the plurality of delivery nodes to associate identifiers to service requests, when the service requests arrive at any of the plurality of delivery nodes, the identifiers being logged with their associated service requests in log files; sending a request to a log collector for log information, the request including a service ID corresponding to a service to be monitored; receiving the log information corresponding to the services to be monitored, based on the service ID and the associated identifier; and based on the received log information, determining a required bandwidth for delivering the service to be monitored. Also, network nodes for carrying out this method are disclosed.

Abstract: According to one aspect, the teachings herein disclose a method and apparatus for a providing content over a secure connection to a subscriber device, where the content is advantageously securely delivered from a cache local to the telecommunication network. Such operation is based on intercepting a secure connection request from the subscriber device and establishing a corresponding secure session between the subscriber device and a local network data center, rather than the remote content provider targeted by the request.

Abstract: The disclosure relates to a system, methods, devices and nodes for managing shared user content. The system comprises a wireless device which is operative to upload the content to be shared to a Content Delivery Network (CDN) Delivery and Caching Node (DCN), which in turn is operative to cache and deliver the shared user content to other wireless devices and network nodes. The system further comprises a CDN management node, operative to manage the storage of the shared user content in the CDN DCN and a network node operative to instruct the wireless device to store the shared user content to the CDN DCN and to retrieve the shared user content from the CDN DCN.

Abstract: The disclosure relates to a method and request router (RR) to optimize content distribution in a Content Distribution Network (CDN) avoiding (unnecessary traffic towards the Content Provider) requesting the content to the origin server when the content is already available in one of the Delivery Nodes of the CDN. This is achieved by providing a path to a delivery node (DN) caching a requested content, in a content delivery network (CDN) comprising a plurality of DNs. The method comprises selecting a first DN caching the requested content. Upon determination that the first DN (90-1) has reached a maximum capacity, the method comprises selecting a second DN (90-2), which is not caching the requested content, for caching the requested content. The method comprises providing instructions, for use by the second DN, to fetch the requested content from the first DN using a reserved interface and providing a path to the second DN.

Abstract: According to one aspect, the teachings herein disclose a method and apparatus for a providing content over a secure connection to a subscriber device, where the content is advantageously securely delivered from a cache local to the telecommunication network. Such operation is based on intercepting a secure connection request from the subscriber device and establishing a corresponding secure session between the subscriber device and a local network data center, rather than the remote content provider targeted by the request.

Abstract: The invention is directed to secure content delivery. A device (10) sends (4) a content request to a CP (14) identifying targeted content and a public key (K PUB) of the device. A response (8) identifies a Content Delivery Network (18-1, 18-2), CDN, and includes an authorization token (TOKEN A) and a content key (K-NEW) derived from the public key of the communication device and a private key of the CP. The authorization token is sent (10) to the CDN and a delivery token (TOKEN B) and delivery node address are received (15). The delivery token and content key are sent (18) to the delivery node and encrypted content is received (30), the encrypted content comprises content as initially encrypted by the CP and as further encrypted by the CDN using the content key. The encrypted content is decrypted (31) using a private key of the device (10).

Abstract: According to some embodiments, a virtual machine manager is operable to manage a virtual machine (VM) that spans a plurality of hardware appliances. The virtual machine manager receives a request to provide a service to a device, selects an application instance to provide the service to the device, and forwards the request for the service to the selected application instance. The selected application instance is running in an instance of the virtual machine associated with a first hardware appliance. The virtual machine manager determines session data associated with the service and provides the session data associated with the service to a second hardware appliance of the VM in order to enable the VM to provide high availability of the service to the device.

Abstract: According to some embodiments, a virtual machine manager is operable to manage a virtual machine (VM) that spans a plurality of hardware appliances. The virtual machine manager receives a request to provide a service to a device, selects an application instance to provide the service to the device, and forwards the request for the service to the selected application instance. The selected application instance is running in an instance of the virtual machine associated with a first hardware appliance. The virtual machine manager determines session data associated with the service and provides the session data associated with the service to a second hardware appliance of the VM in order to enable the VM to provide high availability of the service to the device.

Abstract: This disclosure provides example details for apparatuses and methods that manage virtual firewalls in a wireless communication network that includes a Core Network, CN, and an associated Radio Access Network, RAN. The virtual firewalls process traffic for respective wireless devices supported by the network. For example, the virtual firewall associated with a given wireless device is maintained in the RAN at the RAN node supporting the device, and is migrated from that RAN node in response to detecting a handover event involving the device. Advantageously, migration may be “horizontal,” where the associated virtual firewall is moved between nodes in the RAN, or may be “vertical,” where the associated virtual firewall is moved from the RAN to the CN.

Abstract: A method for monitoring services, in a content delivery network (CDN), having a plurality of delivery nodes used to deliver services requested by end-users comprises: instructing the plurality of delivery nodes to associate identifiers to service requests, when the service requests arrive at any of the plurality of delivery nodes, the identifiers being logged with their associated service requests in log files; sending a request to a log collector for log information, the request including a service ID corresponding to a service to be monitored; receiving the log information corresponding to the services to be monitored, based on the service ID and the associated identifier; and based on the received log information, determining a required bandwidth for delivering the service to be monitored. Also, network nodes for carrying out this method are disclosed.

Abstract: Passive presence information for a first user of a service, such as a conversation service, is obtained by analyzing user activity logs. This is performed upon request for a second user. Thus lightweight presence information can be obtained without requiring the higher overhead required in a conventional Internet Protocol Multimedia Service (IMS) environment. Such a lightweight presence feature can enable other services including a conversation service that allows users to update a conversation object. Users can listen for updates to particular conversation objects, thus providing a simulated real-time push experience.

Abstract: A method, Request Router and Traffic Monitor for monitoring a Content Delivery Network effecting requests routing toward delivery nodes (DNs) without using a load balancer and achieving high availability. Iteratively, for each delivery node, sending a monitoring request to the delivery node. If a response indicative of success of the monitoring request is received from the delivery node before the end of a first time interval, setting a status of the delivery node to indicate success. If a response indicative of failure is received before the end of the first time interval, setting the status to indicate failure. If no response is received before the end of the first time interval, setting the status to indicate indetermination. Iteratively, at a second time interval, taking a snapshot of the statuses of the delivery nodes and producing a list of DNs with their statuses to be sent to the RR.

Abstract: According to some embodiments, a virtual machine manager is operable to manage a virtual machine (VM) that spans a plurality of hardware appliances. The virtual machine manager receives a request to provide a service to a device, selects an application instance to provide the service to the device, and forwards the request for the service to the selected application instance. The selected application instance is running in an instance of the virtual machine associated with a first hardware appliance. The virtual machine manager determines session data associated with the service and provides the session data associated with the service to a second hardware appliance of the VM in order to enable the VM to provide high availability of the service to the device.

Abstract: The invention relates to a method, a server and a distributed system for configuring a network of CDN caching nodes. The network comprises a hierarchy of virtual CDN caching nodes collocated in a single layer of physical CDN caching nodes. Each physical CDN caching node runs a client-server application and at least one physical CDN caching node runs a server instance of the application. The server instance of the application is operative to detect a modification in the layer of physical CDN caching nodes and to receive traffic load information from the physical CDN caching nodes. The server instance is also operative to compute a new network configuration for the virtual CDN caching nodes based on the modification detected, the traffic load information received and locations of the physical CDN caching nodes and to configure the network of physical CDN caching nodes with the new network configuration.

Abstract: A system and method for managing a hybrid firewall solution, employing both hardware and software firewall components, for a cloud computing data center is provided. A virtual application is hosted by a first plurality of application virtual machines and a second plurality of firewall virtual machines provides firewalling services for traffic associated with the virtual application. A cloud management entity determines that the virtual application requires an increased number of application virtual machines. A security profile for the virtual application is verified to determine if an increased number of firewall virtual machines is required by the increased number of application virtual machines. The cloud management entity can instantiate additional application virtual machines and firewall virtual machines as required.

Abstract: A power management and data center resource monitoring mechanism is provided for selecting new processing elements in a data center. When a condition is detected for selecting new processing elements, one or more processing elements are selected as the new processing elements based on at least a temperature parameter and a usage history parameter of at least some of the processing elements in the data center. Workload is consolidated onto the new processing elements to conserve energy.

Abstract: Teachings herein include a first machine-to-machine (M2M) device manager in a local area network (LAN). The first manager receives operating information for a first M2M device managed by the first manager. This operating information may indicate, for example, the operating state (e.g., on or off) of the first device. Responsive to receiving this operating information, the first manager coordinates operation of a second M2M device that is managed by a second M2M device manager in the LAN. The first manager effectively does so by evaluating the received operating information according to a set of policy-based rules, generating control signaling according to that evaluation, and then sending the generated control signaling to the second manager. Because this control signaling is sent horizontally between different M2M device managers, rather than vertically to some centralized server, such operation coordination can occur across M2M devices that would not otherwise be inter-operable.

Abstract: This disclosure provides example details for apparatuses and methods that manage virtual firewalls in a wireless communication network that includes a Core Network, CN, and an associated Radio Access Network, RAN. The virtual firewalls process traffic for respective wireless devices supported by the network. For example, the virtual firewall associated with a given wireless device is maintained in the RAN at the RAN node supporting the device, and is migrated from that RAN node in response to detecting a handover event involving the device. Advantageously, migration may be “horizontal,” where the associated virtual firewall is moved between nodes in the RAN, or may be “vertical,” where the associated virtual firewall is moved from the RAN to the CN.