346 results about "Time to live" patented technology

A secure streaming content delivery system provides a plurality of content servers connected to a network that host customer content that can be cached and/or stored, e.g., images, video, text, and/or software. The content servers respond to requests for customer content from users. The invention load balances user requests for cached customer content to the appropriate content server. A user makes a request to a customer's server/authorization server for delivery of the customer's content. The authorization server checks if the user is authorized to view the requested content. If the user is authorized, then the authorization server generates a hash value using the authorization server's secret key, the current time, a time-to-live value, and any other information that the customer has configured, and embeds it into the URL which is passed to the user. A content server receives a URL request from the user for customer content cached on the content server. The request is verified by the content server creating its own hash value using the customer server's secret key, the current time, a time-to-live value, and any other related information configured for the customer. If the hash value from the URL matches the content server's generated hash value, then the user's request is valid and within the expiration time period and the content server delivers the requested content to the user.

A system and method is disclosed for the secure transfer of data by carrier virtual machines between participating physical hosts through a virtual network (VNET) implemented on one or more internal and/or external networks. The method of the invention can provide additional security controls, comprising parameters that may include, but are not limited to, time-to-live (TTL), access control lists (ACLs), usage policies, directory roles, etc. Additionally, access to one or more of a plurality of carrier virtual machine payloads by security groups, individual access, subdivided individual access, and MIME-like subdivision of a VM-encapsulated payload may be controlled, thereby providing the carrier VM the ability to carry many secured payloads. In addition, VM packets, a group of packets, a single VM, or subpackets within a VM between network endpoints, or at a predetermined intermediary network point, may be quarantined to realize further security. Individual or combinations of these functionalities on carrier virtual machines, and by extension, application and/or one or more sets of secure data may be implemented.

A system and computer implementable method for updating content on servers coupled to a network. The method includes updating an origin server with a version of files used to provide content, retrieving data that indicates an action to be performed on one or more cache servers in conjunction with updating the origin server, and performing the action to update entries in the one or more cache servers. Each entry in each cache server is associated with a subset of the content on the origin server and may include an expiration field and/or a time to live field. An example of a subset of content to which a cache entry may be associated is a Web page. Cache servers are not required to poll origin servers to determine whether new content is available. Cache servers may be pre-populated using push or pull techniques.

Systems and methods are described for providing network route redundancy through Layer 2 devices, such as a loop free Layer 2 network having a plurality of switching devices. A virtual switch is coupled to the loop free Layer 2 network, the virtual switch having two or more switches configured to transition between master and backup modes to provide redundant support for the loop free Layer 2 network, the switches communicating their status through use of a plurality of redundancy control packets. The system also includes means for allowing the redundancy control packets to be flooded through the Layer 2 network. The means may include time-to-live data attached to the redundancy control packet which is decremented only when the packets are transferred through devices which are configured to recognize the protocol used in redundancy control packets.

Provided are techniques and apparatuses for determining the geographic location of a node on a network. In a representative embodiment, a data packet is received over the network from a second node, the data packet including a network identifier for the second node and a Time-To-Live (TTL) field that has a value, with the value of the TTL field for the data packet indicating a maximum additional number of hops that could have been made by the data packet. A probe packet addressed to the network identifier for the second node is then sent, the probe packet also including a TTL field. The initial value for the TTL field of the probe packet is set based on the value for the TTL field of the data packet.

A method, programmed medium and system are disclosed which provide for user-controlled management of power requirements for mobile devices. The system dynamically adjusts power settings according to goals set by the end user. The end user specifies a time-to-live goal in hours, minutes or a predetermined date/time and the power management function continuously monitors and adjusts power components to meet that goal.

One embodiment of the present invention provides a system for detecting a path between two nodes. During operation, the system transmits a network-testing request frame, which includes a time-to-live (TTL) field within a Transparent Interconnection of Lots of Links (TRILL) header, from a source node to a destination node. In response to receiving a network-testing response frame sent from an intermediate node, the system increments the TTL value by 1 and re-transmits the network-testing frame to the destination node. In response to receiving a network-testing response frame sent from the destination node, the system determines a path between the source node and the destination node. The network-testing request or response frames is not processed on an Internet Protocol (IP) layer.

Disclosed is a computer implemented method and computer program product for transmitting a resource record to a requesting computer. An authoritative domain name server receives a DNS query from a requesting computer at a name server. The authoritative domain name server looks up the resource record based on the DNS query, wherein the resource record is associated with an epochal time and a time to live. The authoritative domain name server transmits the resource record response based on the epochal time.

Disclosed is a method and system for communicating standardized telematic messages among a plurality of telematic devices. A telematic message is received by a message router from one of the telematic devices. The message router selects a destination device and transmits the message to the destination device, where the message is processed. In one embodiment, the message router determines whether the destination device is available to receive a message before transmitting the message. If the destination device is not available, the message is maintained in memory. In another embodiment, a time-to-live parameter is assigned to the message and the message is removed from memory of the time-to-live expires before the destination device becomes available. In a further embodiment, a priority parameter is assigned to the message and the processing of a prior message is interrupted if a new message is received that has a higher priority parameter than the previously received message.

A method for providing dynamic group call among a group of users both wireless (10-30) and wireline (40) places the selectability of the call in the hands of an originating user (10). An originating user (10) may make a fixed number of entries (80). The originating user (10) can create a dynamic group call, add a group call list for later execution, add a member to the group call list, or create a dynamic group call list and immediately execute a group call (92). The method for dynamic group call also provides for selecting a time to live for each group call entry (81) in database (60). This parameter time to live is directly selectable by the originating user (167) or the server. In addition, any member to a previous or existing group call may rejoin or reestablish the dynamic group call (220).

A method for testing connectivity of a multi-segment pseudo-wire (“MS-PW”) in a network, the method comprising: sending an echo request message from a first provider edge (“PE”) device to a second provider edge (“PE”) device for a section of the multi-segment pseudo-wire (“MS-PW”) between the first provider edge (“PE”) device and the second provider edge (“PE”) device; the echo request message being identified as such by a control word contained therein; an inner label of the echo request message having a time-to-live (“TTL”) value set to a number of segments in the section; the time-to-live (“TTL”) value for determining whether the control word is to be inspected as it traverses the section; upon the echo request message arriving at the second provider edge (“PE”) device, the second provider edge (“PE”) device recognizing the echo request message as such by inspecting the control word contained therein; and, receiving an echo reply message from the second provider edge (“PE”) device in response to the echo request message, the echo reply message confirming connectivity of the section.

An apparatus for controlling lifespan of interaction requests includes a processor and a memory, the memory storing instructions that when executed by the processor cause the processor to detect when an interaction request is being initiated for send from a communications appliance, server, or system, activate an interface on the appliance, server, or system for configuring a time to live (TTL) for the interaction request, cause, via the configuration, the interaction request to expire if not answered within the TTL life span, and cause, via the configuration, the TTL constraint applied to the interaction request to be lifted if the interaction is answered within the TTL life span.

A method and a system for maintaining coherence of cache contents in a multi-tiered architecture of servers are described. This includes a front tier of satellite servers, each operating a local cache, and a middle tier of central servers each operating a central cache. Central servers interface with databases through database servers to retrieve the data elements used to construct objects and store them in central caches. Once constructed, objects are attributed a time-to-live (TTL) and stored in central caches then, forwarded to the satellite servers where they are stored in local caches before being delivered to the software applications that have requested them. They are invalidated when outdated and reconstructed from a central server from where they are forwarded to all central caches and to the local caches where they are needed.

To provide a computer system capable of fast failover so that a service is stopped only for a brief period of time from a failure in a first site. The computer system includes a primary site for regular operation and a secondary site that operating when the primary site fails. A primary storage and a secondary storage have a synchronization unit to make contents stored in the primary storage and contents stored in the secondary storage identical to each other. A client has a cache for recording address information (e.g. DNS) that gives the client an access to the server from which the service is provided and information that defines a time to live of the address information. A first server has a primary request log processing unit, which instructs the client to shorten the recorded time to live of the address information when communication with the secondary site is detected to be impossible.

In an information communication system, information communication devices exchange an IP packet over IP networks. When performing a predetermined packet exchanging procedure in which the number of router hops is limited to a predetermined control value or less, each of the information communication devices monitors Time-To-Live values designated in the headers of IP packets received over a period of time from the start of the predetermined packet exchanging procedure to immediately before the end of the predetermined packet exchanging procedure to continuously update the maximum Time-To-Live value of the monitored Time-To-Live values, and checks whether the maximum Time-To-Live value does not exceed the control value.

The present application is directed towards systems and methods for configuring and applying autoscaling to a service group of an intermediary device for a domain based server. All the IP addresses resolved by the domain name of the server and that are determined as up will automatically become members of the service group. The resolver monitor will resolve the server's domain name based on the TTL (Time to Live) value in the address record or whenever the appropriate command is executed. Each time the domain is resolved, if there is a change in the number of IP addresses resolved, then the members of the service group will shrink or expand based on the number of IP addresses resolved