203 results about "Address pool" patented technology

The invention relates to the technical field of network communication, provides a dual-stack network adaptive scheduling method and system based on a DNS analysis strategy, and is used for establishing an effective protocol stack feature association mechanism so as to realize cross-protocol-layer intelligent scheduling. The method comprises the steps that a DNS analysis request sent by a client side is received, and the DNS analysis request carries a target domain name and a request protocol type; analyzing the request protocol type to determine a network protocol stack type supported by the client; generating an adaptive scheduling strategy corresponding to the target domain name according to the network protocol stack type and a preset address type priority list; selecting a target IP address type from a pre-configured IP address pool based on the self-adaptive scheduling strategy; and returning an analysis result corresponding to the target IP address type to the client so as to guide the client to establish network connection through the target IP address type.

Techniques for automatically integrating SD-WAN constructs to security policies are described. The techniques may include defining, by a security cloud provider, a security policy for an entity, the entity represented by a VPN security policy label and the security policy absent source and destination CIDR IP addresses. The security cloud provider notifies an SD-WAN controller of the security policy. The SD-WAN controller maps the VPN security policy label to an IP address pool and a VPN ID. The SD-WAN controller generates an enhanced security policy by automatically adding source and destination CIDR IP addresses to the security policy. The SD-WAN controller deploys the enhanced security policy to an SD-WAN branch router and generates a VPN segment between the SD-WAN branch router and the security cloud provider to establish a common secure internet gateway tunnel for the IP address pool.

The invention discloses a data transmission method and device, an industrial control system, a storage medium and a computer program product, and the method comprises the steps: initializing a continuous physical memory, dividing the continuous physical memory into memory blocks with a fixed size, recording the initial address, size, idle or occupied state of the memory blocks through a red-black tree, and forming a dynamic address pool; the dynamic address pool can realize on-demand allocation of memory blocks and merging and dynamic expansion of adjacent free blocks; the method comprises the following steps: acquiring a load index in real time through an FPGA (Field Programmable Gate Array), triggering interruption based on load grading and predicting a memory demand in combination with a machine learning model, and pre-fetching a memory block from a dynamic address pool to a user mode mapping region before a real-time task initiates a memory allocation request; a user mode atomic operation annular queue is designed, direct data interaction between the X86 and the FPGA is achieved through memory mapping, and a Burst transmission and cache consistency protocol of a hardware bus is combined. According to the scheme, the problem of memory fragmentation is solved, the data transmission delay is reduced, and the CPU occupancy rate is greatly reduced.

A method for determining an IP address of a 5G user terminal is disclosed. A SMF determines a target DNN matching the SMF and a type of a terminal address pool for the target DNN. For dynamic configuration, the SMF configures a first UPF and a second UPF in a load balancing mode, and the first UPF or the second UPF selects an IP address from respective IP address pools as a dynamic IP address of the user terminal accessing the target DNN. For fixed acquisition, the SMF configures the first UPF and the second UPF in an active-standby mode, and the first UPF or the second UPF as an active apparatus determines a fixed IP address of the user terminal accessing the target DNN from the respective IP address pool.

The invention provides a strategy for an MCU to carry out automatic addressing on a proximity sensor. Constructing a preset address pool in the Flash; judging whether an effective physical address exists in a memory or not; if yes, taking the current effective physical address to carry out communication work; if not, the first slave equipment physical address is taken out from the top of the preset address pool, a read instruction is generated, and whether a slave equipment ACK response signal exists on the I2C bus or not is scanned; and if the slave equipment ACK response signal is received, the current slave equipment physical address is an effective address, the effective physical address is written into the memory, and the effective physical address is taken for communication. According to the invention, the problems of poor flexibility of the pairing mode of the MCU and the proximity sensor and high cost of replacing the proximity sensor in the prior art are solved.

The invention relates to an SDN-based subnet address allocation method and system. The method comprises the steps of obtaining an initial network configuration requirement; collecting network information in real time; based on network information and initial network configuration requirements, dynamically dividing address fields by adopting a self-adaptive subnet division algorithm, and generating corresponding subnet configuration and a dynamic address pool; when a DHCP request is received, an available IP address is selected from the dynamic address pool according to a pre-formulated IP address allocation strategy, a corresponding DHCP response message is generated, and the DHCP response message is sent to request equipment to complete address allocation; real-time data after address allocation are monitored in real time, the real-time data comprise IP address use conditions, equipment load data and topological changes, and subnet configuration and a dynamic address pool are dynamically adjusted according to the real-time data. The application has the effect of improving the utilization efficiency of the address resources.

The invention discloses an IP address management method and system, and the method comprises the following steps: S1, obtaining network equipment information, and obtaining a cluster according to the network equipment information through employing a clustering algorithm; s2, constructing address pools corresponding to the clusters, and allocating IP addresses in the address pools based on the clusters; s3, acquiring real-time network equipment information, and matching the corresponding address pool according to the real-time network equipment information and the corresponding condition of the clustering cluster to adjust the IP address distribution condition; and S4, constructing a recovery priority according to the use proportion of the IP addresses in each address pool, and executing IP address recovery based on the recovery priority. The method has the beneficial effects that the IP address allocation efficiency is improved, and IP address allocation conflicts are avoided. Meanwhile, when the IP addresses need to be recycled, the IP addresses are recycled from the address pool according to the priority from low to high, so that efficient utilization of IP address resources is ensured.

A method and a device for ultra wideband (UWB) communication are provided. The electronic device includes a communication circuitry, memory storing one or more computer programs, and one or more processors communicatively coupled to the communication circuitry and the memory, wherein the one instructions, when executed by the one or more processors individually or collectively, cause the electronic device to control the communication circuitry to broadcast a ranging request message including an address selected from among a plurality of addresses configured in a specified broadcast address pool, by using short-range wireless communication, and receive a ranging response message from at least one external electronic device to which the selected address is allocated by using the designated broadcast address pool, wherein the address allocated to the at least one external electronic device corresponds to the address included in the ranging request message.

The embodiment of the invention provides a cross-network communication method and system, and the method comprises the steps: receiving source communication data; managing an address pool of the IPV4 network by adopting a bitmap scheme; according to the mapping relation list, adapting the source communication data to target communication data which can be transmitted by the target network and transmitting the target communication data to the target network; according to the bitmap scheme, the distribution state of the IPV4 addresses is marked through bits, the mapping relation list comprises the mapping relation among network identifiers of the multiple networks, and the target network is any one of the multiple networks different from the data source network. According to the embodiment of the invention, the data adaptation and transmission among different networks are realized, the compatibility problem between the articulated naturality web and the IPV4 network is effectively solved, and the data can be seamlessly switched and communicated between the two networks. The address pool of the IPV4 network in a plurality of networks is managed by adopting a bitmap scheme, and the allocation state of the IPV4 address is marked by bits, so that the efficient allocation and release of address resources are realized.

The invention provides a method and a device for realizing a multi-operator exit network in a cloud network. The method comprises the steps that a virtual network controlled by a software defined network (SDN) controller is established, and software comprises a three-layer structure including a traffic control (TC) area, a network element service area and a resource access layer; establishing an address pool of a multi-line elastic public network EIP of a preset operator, and realizing a multi-exit deployment mode; a preset operator elastic public network EIP is bound for a preset network card to realize a scheme that a single cloud host provides multi-operator bandwidth externally, and an operator link is selected by configuring a static routing mode in the cloud host; based on a preset flow control strategy, network element and multi-operator exit background control is realized; based on a preset virtual machine in an operator network, obtaining a time delay condition of a network of a plurality of EIPs bound on a single virtual machine of each client, and realizing detection of an operator link; and according to the link delay or interruption condition, switching control of an operator link or an operator exit is realized.

Techniques are disclosed for rotating network addresses following the installation of a prefab region network at a destination site. A manager service executing within a distributed computing system can allocate a rotation network address pool to a root allocator service that may be configured to provide network addresses from network address pools to dependent nodes within the distributed computing system, with each dependent node associated with a corresponding first network address of the network address pools. The manager service can receive an indication that a second network address of the rotation network address pool is associated with a dependent node. In response, the manager service can execute and a migration operation for the dependent node to redirect network traffic within the distributed computing system from the first network address to the second network address.

Disclosed are various embodiments for self-service management of network address allocations using hierarchical allocation pools. A first network address pool is created for a customer of a cloud provider network. The first network address pool is divided into a second network address pool for a cloud resource of the customer. A first network address block from the second network address pool is assigned to the cloud resource.

The invention discloses a secondary DHCP (Dynamic Host Configuration Protocol)-based PXE guide method, which comprises the following steps of: establishing a PXE guide environment which comprises a PXE client, a PXE server and a DHCP main server which are positioned in the same local area network; executing preorder DHCP work for leasing an idle IP address from the DHCP master server through a second DHCP client in the PXE server to serve as an IP address pool of a DHCP server in the PXE server; executing DHCP (Dynamic Host Configuration Protocol) guiding work which comprises two DHCP processes; the PXE client analyzes the returned third provision packet to determine PXE boot information, a TFTP client in the PXE client initiates a file transmission request and downloads a startup file from a TFTP server in the PXE server according to the PXE boot information, and the PXE client completes boot according to the returned startup file. According to the method, the convenience of a network guiding process can be improved, and the equipment starting abnormal risk is avoided.

The invention relates to the technical field of industrial automation control, in particular to an automatic equipment numbering system and method based on an industrial field bus. The method comprises the following steps: broadcasting an initial address seed through a main controller, and sequentially setting incremental addresses for equipment by adopting a chain transmission mechanism in linear topology; exclusive address fields are dynamically divided in the bifurcation topology, buffering is reserved, and hierarchical chain type numbering is started by branch head equipment; monitoring an equipment state in real time, recovering an offline address to an address pool for priority allocation of new equipment, and automatically expanding an upper limit of an address field when the address is exhausted; a conflict risk prediction model based on multi-modal data fusion is introduced, and the crossing from passive processing to active early warning is realized through adaptive adjustment of detection frequency and a preventive reset mechanism. According to the invention, plug-and-play deployment of equipment without manual intervention is realized, and the automatic management level and reliability of an industrial bus network are remarkably improved.

The invention provides a user online processing method and transmission equipment, and the method comprises the steps: receiving a user online request, obtaining undistributed address information from a pre-distributed subnet address pool when a UP recognizes that the link state with a first control plane CP meets a preset condition, and distributing the obtained address information to a user, so that the user is online. Through the method, the UP pickup function can be enabled, so that the online process of the user is not influenced when the CUSP fault exists between the UP and the CP.

This disclosure provides an I2C address conflict handling method, apparatus, device, and storage medium, relating to the field of computer technology and applied to BMC (Bus Management Center). The method first identifies address conflict events on the I2C bus and determines at least two conflicting devices and their address modification capabilities. Then, based on the address modification capability information, a target resolution strategy is selected from preset multi-level resolution strategies, and a target I2C address is matched to the target conflicting device from the address pool. Next, the target resolution strategy is executed, changing the I2C address of the target conflicting device to the target I2C address. Finally, the device address mapping table is updated, and the conflict handling information is recorded in a conflict tracing database. This solution achieves automated detection and resolution of I2C address conflicts, is compatible with various address modification capabilities, avoids manual intervention and secondary conflicts through dynamic address pool management and multi-level strategy adaptive selection, and establishes a full-process tracing mechanism, improving bus communication stability and operational efficiency.

The invention discloses an IP address allocation method, device and equipment for edge nodes, the method is applied to the technical field of the Internet of Things, and the method comprises the steps: obtaining the total number of a plurality of edge nodes in an edge calculation scene and the average number of Pods operated by each edge node, and configuring an initial IP address pool; grouping the plurality of edge nodes to obtain a plurality of edge node groups; determining an IP address set corresponding to each edge node group according to a network segment where each IP address in the initial IP address pool is located; determining the priority of each edge node according to the load index value corresponding to each edge node and the network delay data; and allocating the IP address of each edge node according to the IP address corresponding to each edge node group and the priority of each edge node. According to the invention, the use efficiency of the IP address in the edge node is optimized, and the network performance and reliability are enhanced.

A system and method for managing user identity information in a multi-tenant environment can perform operations including assigning a first address from an address pool for a first user session, storing first information for the first user session in the memory linked to the first address, and assigning a second address from the address pool for a second user session. The operations can also include storing second information for the second user session in the memory linked to the second address from the address pool for the second user session if the second address does not match a third address from the address pool for a third session in the memory, and forwarding communication data for the second user session after the second information has been stored.

The present application discloses a distributed system software upgrade method. Compared with the traditional server-side synchronous upgrade method, the method places high demands on the concurrency and bandwidth of the server side. Once a failure or abnormality occurs on the server side, the upgrade work of the entire system may not proceed smoothly. The multiple client nodes are respectively assigned to different areas, and the operation and maintenance server allocates a corresponding regional multicast address to each area in the address pool; each area selects one of the client nodes as the regional virtual server within the current cycle; the regional virtual server receives the upgrade request from the central upgrade module of the operation and maintenance server, and after successfully downloading the upgrade package, it verifies the integrity of the current upgrade package; and continuously sends the latest software version information according to the established period through the regional multicast address. The present application significantly improves the upgrade efficiency and enhances the fault tolerance of the system, thereby efficiently, stably and reliably performing distributed system software upgrades.

The invention provides an access authentication method, device and system, electronic equipment and a storage medium, and relates to the technical field of communication. Two address pools with the same IP address range and gateway address are configured on the SDN controller, and the two address pools are associated with different VRF information. The SDN controller receives a DHCP relay request message sent by the DHCP relay device, and when an address pool associated with VRF information in the DHCP relay request message is an address pool corresponding to a default VLAN, an IP address is allocated to the terminal from the address pool and the terminal is authenticated; and configuring the access port VLAN of the successfully authenticated terminal as an authorized VLAN, and synchronizing the IP address to an allocation list of an address pool corresponding to the authorized VLAN. Therefore, after the terminal is successfully authenticated, the IP address obtained before authentication is directly used for communication, and communication can be performed without waiting for the terminal to renew the lease or manually triggering the terminal to obtain the IP address again in the authorized VLAN.

The application provides a conflict detection-based IP address fast switching method and system, which comprises the following steps: when a network client detects an IP address conflict, the network client verifies whether a target backup IP address in a local backup address pool is occupied in a current network segment; when the target backup IP address is not occupied in the current network segment, the network client switches a main IP address of a network interface from a conflict IP to the target backup IP address; after the IP address is switched, the original socket is bound to a new IP address, or a TCP session is maintained through a connection migration technology; after receiving a switching notification message, a central management node updates a new main IP state from "pre-occupation" to "has been allocated", marks a conflict old IP address as "conflict" and isolates the conflict old IP address, and selects a new IP address from a global address pool as a new backup address of the network client. The application can realize millisecond or second level fast switching to a backup IP address, so as to minimize network communication interruption time.

In a transmission scene with large network delay or large out-of-order distance, in order to solve the problems that the bit width of a packet receiving bitmap of an RDMA data receiving end is too large and storage resources are occupied too much, the invention provides a packet receiving bitmap management method of out-of-order RDMA. According to the method, an RDMA queue does not apply for a storage space in advance for an annular packet receiving bitmap of Q), the annular packet receiving bitmap is segmented into a plurality of sub-bitmaps, and a sub-bitmap space is dynamically applied or released from an available sub-bitmap address pool according to needs; the available sub-bitmap address pool is a queue, all sub-bitmap addresses are queued into the address pool during initialization, when the QP needs a sub-bitmap, one sub-bitmap address is dequeued from the address pool, and after a certain sub-bitmap of the QP is used, the used sub-bitmap address is queued back into the address pool; when a certain sub-bitmap of the QP is 1, the sub-bitmap space can be released in advance. According to the invention, the RDMA data receiving end supports the packet receiving bitmap with a large bit width, the occupied bitmap storage resources are small, and the utilization rate is high.

The invention discloses a method for automatically allocating sub-network IP addresses by an Openstack cloud host. The method comprises the following steps: receiving an id number of a virtual network and a sub-network id number in request parameters for creating the cloud host; querying a sub-network id number under the corresponding virtual network according to the id number of the virtual network, and querying an ip address pool under the corresponding sub-network according to the sub-network id number when the sub-network id number in the request parameter is under the current virtual network; obtaining an unoccupied ip set of the available subnet according to the ip address pool; and when the obtained ip set of which the subnet is not occupied is not an empty set, selecting an ip address from the ip set of which the subnet is not occupied, calling and creating a cloud host interface, and assigning the ip of the cloud host as the selected IP address. According to the method and the device, the distribution flexibility of the ip address of the cloud host is improved, a user can divide different subnets according to different service requirements, and the ip address of the appointed subnet is automatically distributed to the cloud host.

The present application relates to the field of virtualization technology, and in particular to a virtual machine backup method and device. The method is applied to a primary backup node of a backup cluster, wherein the backup cluster is divided into multiple address pools, one address pool includes multiple backup nodes, and the backup nodes of any address pool respectively establish a communication link with a corresponding host machine running a virtual machine, and the backup cluster is divided into at least one storage pool; the method comprises: receiving a backup task request, wherein the backup task request includes target host machine information and target virtual machine information to be backed up in each target host machine; for each target virtual machine, creating a backup task corresponding to the target virtual machine, and obtaining the data of the target virtual machine from the target host machine based on the backup task, wherein the data of the target virtual machine includes the disk file and configuration file of the target virtual machine; and backing up the obtained disk file and configuration file of the target virtual machine to a designated storage pool of the backup cluster.

The invention relates to the technical field of IT and software development, and discloses a Diskless supercomputing cluster construction method, device and product, a memory operating system is customized and a network boot loader is configured according to customer requirements, and the Diskless supercomputing cluster is quickly deployed to a computing node, so that time and labor are saved, and deployment efficiency is improved; secondly, a DHCP address pool is initialized, a control mechanism is determined, and node communication is guaranteed; and then, the nodes adopt a memory operating system and are uniformly pushed, so that local installation is avoided, the maintenance convenience is improved, the storage investment is reduced, the environment consistency is ensured, and the influence of abnormal configuration on job scheduling is prevented. Then, the nodes are automatically controlled to be started and guided, and cluster starting automation is achieved. And finally, the node quality and software and hardware configuration are ensured to meet the requirements through verification, and the cluster is automatically constructed by using the target computing node, so that the supercomputing server and the client controller cooperate, the influence of node inconsistency is reduced, and the cluster consistency is ensured.

Techniques for automatically integrating SD-WAN constructs to security policies are described. The techniques may include defining, by a security cloud provider, a security policy for an entity, the entity represented by a VPN security policy label and the security policy absent source and destination CIDR IP addresses. The security cloud provider notifies an SD-WAN controller of the security policy. The SD-WAN controller maps the VPN security policy label to an IP address pool and a VPN ID. The SD-WAN controller generates an enhanced security policy by automatically adding source and destination CIDR IP addresses to the security policy. The SD-WAN controller deploys the enhanced security policy to an SD-WAN branch router and generates a VPN segment between the SD-WAN branch router and the security cloud provider to establish a common secure internet gateway tunnel for the IP address pool.

The application relates to the technical field of computer system software, and discloses a container network management method based on host computer multi-IP binding and related equipment. After a node is started, node registration and Pod IP address range allocation are completed through node agent interaction with a management center, IP addresses are allocated to the Pod according to the address range, and address conflict detection is performed; the Pod network mode is configured as a host computer network mode, and the allocated IP addresses are added to a physical network card of the host computer, so that the Pod realizes communication by relying on the host computer network. When a sandbox and a business container are created, IP addresses are synchronized to sandbox metadata annotations and business container environment variables, and networking interaction of applications in the container is supported. When the life cycle of the Pod ends, the IP addresses are recycled and removed from the physical network card; when the node agent is restarted, the local IP allocation state is restored, invalid IP addresses on the physical network card are cleaned, and the invalid IP addresses are recycled into an address pool, so that IP efficient reuse is realized. The application guarantees the running performance and stability of the container network.

The application discloses an address management method and device, network equipment, a program product and a storage medium. The method comprises the following steps: a first network function receives a first message sent by a first session management function (SMF), wherein the first message comprises an IP address allocation application, and the IP address allocation application is used for applying for an IP address for a session of a user; the first network function allocates a first IP address for the session of the user in an IP address pool, and establishes a mapping relationship between the first IP address and a related identifier of the first SMF; and the first network function sends the first IP address to the first SMF.

The present application discloses a method and device for managing an address pool, a non-volatile storage medium, and an electronic device. The method includes: receiving a first session message; determining the flag bit type in the first field of the first session message between the terminal and the network element when it is determined that the Internet Protocol address obtained by the terminal is abnormal, wherein the flag bit type is used to determine the network element that allocates the address to the terminal; determining the target network element that causes the Internet Protocol address abnormality based on the flag bit type; and increasing the address resources in the address pool when the usage rate of the address resources of the address pool corresponding to the target network element is greater than a preset threshold. The present application solves the technical problem that the terminal cannot quickly obtain the Internet Protocol address due to the inability to quickly determine the faulty network element that causes the Internet Protocol address abnormality and thus the inability to expand the address pool of the faulty network element.

The present application relates to a traffic identification method, device and computer equipment. Applied to a gateway, the method includes: receiving a user virtual number and access traffic sent by a client, the access traffic being the traffic of the client accessing a target application; matching a connector corresponding to the user virtual number from multiple connectors based on a virtual address pool corresponding to each connector, and determining a target connector; forwarding the user virtual number and access traffic to the target connector, so that the target connector modifies the source address of the client based on the user virtual number to obtain a modified source address, establishes a connection with the target application based on the modified source address information, and forwards the access traffic to the target application, so that the target application identifies the modified source address and responds to the access traffic, and the modified source address is consistent with the user virtual number. The use of this method can improve the accuracy of traffic identification.