71 results about "Time to live" patented technology

A method is provided by which a subscriber accesses an SDV channel using a set top terminal. The method begins when the set top terminal receives a user request to tune to a first SDV channel. An active services list is also received over an access network. The active services list includes an entry for each currently available SDV program and a time-to-live (TTL) associated therewith. Tuning information is identified for the first SDV channel from its entry in the active services list. The set top terminal tunes to the first SDV channel using the identified tuning information. The channel change information associated with the user request is locally stored in set top terminal for transmission over the access network at a later time.

The invention relates to the technical field of ad hoc network transmission management, and discloses a wireless ad hoc network transmission management method for earthquake early warning information, which comprises the following steps: S101, generating a comprehensive failure risk prediction value through a multi-source data fusion algorithm according to earthquake wave data, geologic structure data, historical earthquake data and meteorological data; s102, constructing a hierarchical failure probability model based on the comprehensive failure risk prediction value, and generating a node failure risk probability graph; the weight of each layer is distributed according to the earthquake stage; s103, constructing a network topology, calculating the survival time of network nodes, calculating the weighted comprehensive failure probability of each network node, and dynamically updating the network topology; and S104, according to the weighted comprehensive failure probability and the survival time of each network node, fusing to obtain a node stable utilization characteristic, and further executing staged resource scheduling. According to the invention, accurate prediction and staged resource scheduling of the network node failure risk in the whole earthquake disaster process are realized.

Methods, and systems for authentication via web components. One of the methods includes: submitting a token request, by a browser application, to a first server entity for a token from an API hosted by a second server entity; receiving, at the browser application, the token and a time to live (TTL) for the token from the first server entity, the first server entity having added an API key to the token request to produce an appended token request and forwarded the appended token request to the API at the second server entity, the API at the second server entity having authenticated the API key and returned the token and the TTL to the first server entity, and the first server entity having returned the token and the TTL to the browser application; and sending, by the browser application to the second server entity, a data request with the token.

Systems and methods for network traffic monitoring are provided. A system may obtain a data packet of a data packet exchange between the server and a network device, extract a time to live (TTL) value and an internet protocol (IP) address of the network device from the data packet, compare the TTL value with a TTL value range or signature determined based on TTL values observed from data packets transmitted across a communications network, determine that the TTL value violates an authentication policy based on the TTL value being outside of the TTL value range or signature, and apply a tag to the IP address of the network device in a database stored memory.

The invention relates to a solid state disk dynamic wear balancing method and system based on data popularity, and the method comprises the steps: tracking the access characteristics of each data page in a solid state disk through a page-level counter, and enabling the access characteristics to comprise the write operation frequency, the modification period and the survival time; the data pages are dynamically divided into high-heat data, medium-heat data or cold data based on a preset threshold value, and corresponding heat layering labels are marked; collecting accumulated writing times and I / O request queue length of each channel of the solid state disk in real time, and calculating wear imbalance degree and load imbalance degree; performing data exchange according to a preset exchange mode priority based on the popularity hierarchical label, the wear imbalance degree and the load imbalance degree; and updating the logic mapping table and the channel state parameters, carrying out statistics on the balance income and the system overhead, and dynamically correcting the tolerance coefficient based on the current load type according to the income-overhead ratio.

The invention discloses a server business data management system and method and a server, and relates to the technical field of computer storage. The system comprises a storage component for storing service data and a management component for managing a plurality of access paths, and a service host comprises storage hardware, a kernel driving engine and a buffer control engine. The kernel driving engine sends a data request generated according to an upper layer service to the management component to select an access path, and records a processing duration; and when the processing duration exceeds the survival time threshold, judging that the request fails, sending a buffer instruction to the buffer control engine, and feeding back request completion information to the upper layer. And the buffer control engine temporarily stores the data to the storage hardware and then writes the data after the storage component is recovered, so that the technical problem of upper-layer service interruption caused by failure of all paths of the multi-path software when input / output silence occurs in storage in the related technology is solved, and the technical effect of ensuring that the service is not interrupted when the input / output silence occurs in the storage is achieved.

The subject matter of this disclosure relates in general to the field of computer networking, and more particularly, to systems and methods for discovery of a tunnel for wide area network. Certain aspects provide a method for network path analysis. The method includes sending a first probe packet configured to identify a network tunnel, wherein the first probe packet includes an identifier of the first probe packet and a first time to live (TTL) value that corresponds to a first network hop; receiving a first response message from the first network hop in the network tunnel, wherein the first response message corresponds to the first probe packet and includes the identifier of the first probe packet; and analyzing the network tunnel based on the first response message including the identifier of the first probe packet.

System and method for fine granularity control of data access and usage for across multi-tenant systems. A user makes a request to access a particular set of data from a particular remote data source for a specific purpose. The system authorizes the user to validate whether the user is qualified to make the request. The data source is checked to see if the particular data has been granted access for that particular purpose. A cloud neutral token is created and converted into a cloud specific token upon reaching the remote data source. The cloud specific token is used to create a temporary IAM role and IAM policy with a predetermined time to live. After the time to live expires, the IAM role and IAM policy are deleted.

The invention provides a data processing method and system, and relates to the technical field of data processing, and the data processing method comprises the steps: obtaining a network exception time period of a domain name system (DNS); obtaining domain name query information in the network abnormal time period, and determining a white list domain name based on the domain name query information; reading the TTL (Transistor-Transistor Logic) of the white list domain names from the cache server, and grouping the white list domain names in the cache server according to the TTL to obtain one or more groups corresponding to the white list domain names; and in response to the TTL of the group meeting the updating condition, sending an updating request to the recursive server to obtain the latest address information of the white list domain name in the group, and sending the latest address information to the cache server corresponding to the group to update the address information, the technical problem of link congestion caused by simultaneous iterative query of the same domain name in the prior art is solved, and the utilization rate of the server is improved.

The invention discloses a high energy efficiency WSN routing protocol based on grey correlation degree clustering, and the method comprises the steps: firstly, on the basis of a density peak clustering algorithm (DPC), setting a dynamic distance threshold parameter for each node based on the idea of mutual K neighbor; and then, a peak node is selected by adopting a grey correlation analysis method, so that the cluster center is determined more accurately. And finally, distributing the remaining nodes according to the sharing proximity, ensuring that the distance between the nodes in the cluster is not too far, and improving the utilization rate of energy. For a large-scale wireless sensor network, the energy loss of the whole network is reduced as much as possible, the energy utilization efficiency is improved, and the survival time of each sensor node is prolonged, so that the survival time of the network is prolonged, and the comprehensive capability of the performance such as energy consumption and network throughput is better.

A barcode-based networking method includes the following steps: scanning the barcodes of multiple network devices using an electronic device to obtain the identifiers of each network device, and setting a lifespan parameter, a network group code for each network device, and operating parameters for each network device; designating an agent device by the electronic device and transmitting the lifespan parameter, identifier, and network group code to the agent device; generating a networking command signal by the agent device based on the lifespan parameter, identifier, and network group code, and broadcasting the networking command signal through a general communication channel; upon receiving the networking command signal, any network device finds its corresponding network group code based on the networking command signal and enters the mesh network; after entering the mesh network, the network device transmits a reporting signal to the agent device through the mesh network's communication channel; upon receiving the reporting signal, the network device sends the corresponding operating parameters to the network device through the mesh network's communication channel.

This application discloses a service processing method, apparatus, network node, and readable storage medium, belonging to the field of communication technology. The service processing method includes: a first network node performing a first operation, wherein the first network node is the network node where the anchor point of a target bearer is located, and the target bearer is a bearer corresponding to a target service with a time-to-live requirement; wherein the first operation includes at least one of the following: sending first configuration information to a second network node, the first configuration information being used to assist the second network node in performing radio resource management operations related to the target bearer, wherein the second network node is not the network node where the anchor point of the target bearer is located; and performing management operations related to the time-to-live status of the target bearer.

This application provides a data processing method, electronic device, medium, and product; wherein, the method includes: obtaining a time parameter when target data enters the cache and the lifespan of the target data; the time parameter includes a count value of a global counter; inserting the target data into a classification list based on the lifespan and the count value; the classification list is used to aggregate data with the same expiration time and expiration cycle; cleaning the target data based on the classification list, which can aggregate data with the same expiration time and expiration cycle together, and realize efficient querying and cleaning of expired data.

The invention provides a Web application defense method based on webpage resource address dynamic jump, which comprises the following steps of: 1, dynamically replacing a URL (Uniform Resource Locator) in a response returned by a Web server with a virtual URL by detecting the URL; 2, the virtual URL pool is managed, the number of times of use and the survival time of virtual URLs are limited, and the virtual URLs automatically lose efficacy after exceeding the limitation; step 3, storing a mapping relation between the virtual URL and the real URL by using a memory database; and 4, deploying redundant interference nodes around the key nodes, and simulating real node behaviors. By applying the technical scheme, the hiding of a Web application directory structure and the dynamic change of a potential attack entry can be realized, the attack is blocked, and the security of the Web application is ensured.

Optimizing network load in multicast communications including receiving, at a first interface of a first router from a second router, a multicast packet for a multicast group; determining whether a time to live (TTL) value of the multicast packet is equal to zero; and sending, in response to determining that the TTL value of the multicast packet is equal to zero, a Protocol Independent Multicast prune message on the first interface of the first router, wherein the Protocol Independent Multicast prune message comprises a request to stop receiving multicast traffic for the multicast group.

The present disclosure provides a method and system for determining a cache size and allocating cache. A batch of requests for storing data in cache is received and associated with a set of counters configured to obtain respective estimated counts of unique hashed keys of requests associated therewith. Requests may be associated with respective counters in accordance with respective size of each request and a respective data block size associated with each counter. Estimated count of unique hashed keys of requests may be obtained at each counter for a selected expiry time based on Time to Live indicators of requests. Cache size to be allocated is computed by, for counters in the set, summing over a product of respective estimated count of hashed keys of requests at a counter with the data block size associated with the counter.

The invention provides a mobile communication control plane signaling-based user identifier storage association method and system, and the method comprises the steps: obtaining a structured information data packet of a control plane signaling, extracting a user identifier key field, and obtaining a user identifier storage structure table; taking an F-TEID network element I P, an F-TEID tunnel I D and an inner layer I P address in the user identification storage structure table as a control plane triple key, and sending the user identification storage structure table to a user identification storage unit corresponding to the database cluster according to a hash value corresponding to the control plane triple key; managing the survival time period of the user identifier according to the PDU session operation type and the interception timestamp; and taking an F-TEID network element I P, an F-TEID tunnel I D and an inner layer I P address of the user plane data as a user plane triple key, and associating the user identifier with the user plane data by adding fields. According to the method and the device, the problems of user plane association errors and signaling plane time delay are solved, and accuracy verification, distributed storage and dynamic capacity expansion can be realized while query is performed.

The invention relates to the technical field of data processing, provides a server host intrusion behavior detection method, device and equipment and a medium, and is applied to financial and medical health care service scenes. The initial normal behavior panoramic feature map is constructed based on the to-be-processed log data, so that scattered log data can be converted into structured graph data, and a comprehensive data model is provided for subsequent detection; on one hand, the survival time of each node is configured, and the amount of graph data can be effectively controlled while the valuable data is kept; and on the other hand, after the perfection period is finished, aggregation statistics is performed on the abnormal events based on a sliding time window mechanism, and whether an intrusion risk exists or not is detected according to an aggregation statistical value, so that the false alarm rate of accidental events can be reduced while abnormal behavior detection is maintained, unknown threats and newly-added attack behaviors are effectively identified, and the detection accuracy is improved. Therefore, the detection accuracy is improved.

The technology disclosed herein relates to enhancing satellite coverage and improving user device experiences. For example, the technology discussed herein can include establishing a radio resource control (RRC) connection between a satellite and a user device (e.g., an active or idle RRC connection). Based on the RRC connection, the satellite can generate a message (e.g., an RRC connection release message) that includes a time to live parameter within a spare field of the message. Based on the satellite transmitting the time to live parameter to the user device, the user device can initiate one or more user device actions. For example, the user device can initiate a timer corresponding to scanning for a frequency band.

System and method for fine granularity control of data access and usage for across multi-tenant systems. A user makes a request to access a particular set of data from a particular remote data source for a specific purpose. The system authorizes the user to validate whether the user is qualified to make the request. The data source is checked to see if the particular data has been granted access for that particular purpose. A cloud neutral token is created and converted into a cloud specific token upon reaching the remote data source. The cloud specific token is used to create a temporary IAM role and IAM policy with a predetermined time to live. After the time to live expires, the IAM role and IAM policy are deleted.

On-device processor(s) of a client device may store, in on-device storage and in association with a time to live (TTL) in the on-device storage, a correction directed to ASR processing of audio data. The correction may include a portion of a given speech hypothesis that was modified to an alternate speech hypothesis. Further, the on-device processor(s) may cause an on-device ASR model to be personalized based on the correction. Moreover, and based on additional ASR processing of additional audio data, the on-device processor(s) may store, in the on-device storage and in association with an additional TTL in the on-device storage, a pseudo-correction directed to the additional ASR processing. Accordingly, the on-device processor(s) may cause the on-device ASR model to be personalized based on the pseudo-correction to prevent forgetting by the on-device ASR model.

The invention discloses a DNS analysis method and system for low-power-consumption equipment, a storage medium and a program product, and relates to the field of digital information transmission, in the method, a default DNS server address of a service system of the low-power-consumption equipment is configured as a local loopback address; domain name information in the DNS request is extracted, and a request message is sent to the low-power-consumption module; calculating to obtain a hash value; searching whether a corresponding DNS cache entry exists or not; if the DNS cache entry is found, judging whether the survival time of the DNS cache entry is expired or not; if the survival time is not expired, returning the IP address and the survival time to the DNS agent module; if the DNS is not found or the survival time is expired, initiating a DNS analysis request; forming a new DNS cache entry by the IP address, the survival time and the hash value in the analysis result, and storing the new DNS cache entry into a preset storage space; returning the IP address and the survival time to the DNS agent module; and generating a DNS response message and responding. According to the invention, the number of times of cache establishment is reduced, so that the purpose of optimizing the performance of low-power-consumption equipment is achieved.

The invention provides an Alluxio nested cache automatic expelling method and a storage medium, the method comprises a database establishment step, an expelling rule issuing step, an expelling rule updating step and a cache expelling management step, a directory-level TTL rule is adopted, the TTL rule is stored in an etcd in the form of a key value pair of a directory path and TTL expelling duration, and the TTL expelling duration is stored in the etcd in the form of a key value pair of the directory path and the TTL expelling duration. Synchronizing to all Worker nodes through a heartbeat mechanism; through a timed scanning mechanism, the system regularly checks the survival time of cached data and automatically expels overtime data; and finally, dynamic adjustment of the TTL rule is supported, a user can flexibly add, update or delete the rule through a CLI command, and the rule change can be quickly responded. The method has the advantages that the complexity of cache management is reduced, the data access performance and the system response efficiency are improved, and the method is suitable for big data and distributed computing environments.

The present invention discloses an energy-efficient topology control method for heterogeneous wireless sensor networks based on blockchain. First, this method uses an improved DPC-MND clustering method to complete clustering. At the same time, sensor nodes are divided into three categories, namely ordinary nodes, cluster head nodes, and pseudo-base station nodes, and the three types of nodes perform their respective functions. Then, a routing path is constructed through blockchain shared routing or the Dijkstra method. Finally, the sensed data is transmitted to the base station based on the form of multi-hop forwarding. The present invention aims at large-scale heterogeneous wireless sensor networks, minimizing the overall network energy consumption as much as possible, improving the energy utilization efficiency, prolonging the survival time of each sensor node, thereby extending the network survival duration, and having better comprehensive performance in terms of energy consumption and stability and other aspects.

The embodiment of the application provides a kind of data transmission method, terminal, network side equipment and computer readable storage medium, it is related to communication technical field.The method is executed by terminal, comprising: when uplink data transmission fails, the first device for timing is started;When the timing of the first device meets the condition, data transmission operation is executed.The embodiment of the application provides an effective solution realized by terminal device for the case that survival time timeout causes service reliability to reduce, cannot satisfy the reliability requirement of service transmission, terminal starts the first device for timing when discovering uplink data transmission failure, and executes data transmission operation when the timing of the first device meets the condition, to improve the reliability of service transmission, to meet the requirement of service transmission quality of service QoS performance.

This application provides a data expiration handling method for distributed systems. The method includes: creating a target coroutine for a target storage table; obtaining the target lifespan of the target storage table and the timestamps of each index in the target index table through the target coroutine; obtaining the remaining lifespan of the target data that expires earliest based on the target lifespan and the timestamps of each index; suspending the target coroutine until the target data expires based on the remaining lifespan of the target data; and initiating an expiration notification and / or deletion notification through the target coroutine when the target data expires. The technical solution of this application embodiment can immediately initiate expiration notifications and / or deletion notifications for target data through the target coroutine when the target data expires, without asynchronous scanning, thus improving the speed of initiating expiration notifications and / or deletion notifications.

The application provides a scheduling optimization method and system for multi-link data transmission of an earth observation satellite. In a network topology structure, a path indicator of a sub-flow, a data rate of the sub-flow, and a data transmission time of a source node are obtained according to a network topology graph of each time slot in a task cycle, capacities of various links, sources of requested data, a data amount required to be transmitted by each source node, and a destination node set. The obtained information is subjected to bandwidth constraint and data amount constraint, and a shortest path set from the source node to the destination node is obtained with a total data transmission time being minimized as an optimization target. Then, the shortest path set from a source satellite to each target ground station is calculated, and an optimal path is selected based on a joint degree and a survival time. Based on the selected optimal path, bandwidth resources are allocated according to a priority of a source satellite task, and data transmission from the source satellite to a destination is performed to realize multi-link efficient data transmission of data and improve data transmission efficiency.

Systems, methods, and devices for wireless communication. Configuration information indicating a configuration for an acknowledgement mode (AM) radio link control (RLC) entity is received. A packet data unit (PDU) set is received by a packet data convergence protocol (PDCP) entity. The AM RLC entity is configured for retransmission based on at least one condition, wherein the at least one condition includes PDU set characteristics and / or PDU set transmission status. And transmitting the PDU set through the AM RLC entity. An RLC state PDU indicating an RLC state is received. One or more PDUs in the set of PDUs are retransmitted by the RLC entity in response to the RLC status. In some implementations, the PDU set characteristics include a priority level of the PDU set and / or a type of the PDU set. In some implementations, the PDU set transmission state includes a time to live (TTL) threshold.

The invention relates to the technical field of data analysis and visualization, in particular to a water operation and maintenance data analysis and visualization method and system. The method comprises the following steps: acquiring real-time operation and maintenance monitoring data of various parameters, calculating data fluctuation entropy, calculating an interactive adjacent weight of each data object when a front-end visualization request is received, and calculating a cache priority in combination with the data fluctuation entropy, if the cache priority is higher than a preset cache trigger threshold value, triggering an associated data analysis task and storing the task into a data analysis cache, constructing a data visual cache, assigning a rendering parameter according to data fluctuation entropy, calculating cache survival time based on an interactive proximity weight, and obtaining a data analysis result; when the residence duration exceeds the cache survival time or the data fluctuation entropy exceeds a preset fluctuation threshold value, the analysis result and all the associated items are set to be invalid. According to the scheme, the computing resources can be allocated according to needs, so that the high-fluctuation nodes are highlighted on the visual interface, and the timeliness of the cache analysis result is ensured.

The application provides a path tracking method, device and storage medium. The method comprises the following steps: receiving first IPv6 segment routing (SRv6) function information sent by a second type network node, wherein the first SRv6 function information is used to indicate that a first type network node analyzes an inner layer IP path tracking message corresponding to a received double-layer IP message; constructing a local processing function table according to the first SRv6 function information; in the case that a double-layer IP message forwarded by a third type network node is received, intercepting the double-layer IP message according to the local processing function table, and performing a local processing function indicated by the first SRv6 function information, wherein the local processing function comprises the following steps: analyzing the inner layer IP path tracking message corresponding to the double-layer IP message, and checking an IPv4 time to live or an IPv6 hop limit field of the IP path tracking message.