53results about How to "No business interruption" patented technology

The embodiment of the invention discloses a method, a device and a system for online activating patches, wherein the method comprises the following steps of positioning the address of a patch function and an access address of a function to be patched; writing a long jump instruction used for jumping to the patch function in the middle area according to the address of the patch function and the access address of the function to be patched, wherein the middle area is arranged before or after the access position of the function to be patched and can contain a memory space for at least one long jump instruction; rectifying the instruction of the function to be patched at the access position as a short jump instruction used for jumping to the middle area so as to lead the short jump instruction to jump to the middle area after being executed; and jumping to the executing of the patch function by the executing of the instruction in the middle area. By adopting the embodiment of the invention, the safety and reliability of the application software can be improved when the online patches are being activated.

The disclosed configuration method for ISP device comprises: connecting two interfaces of network node device to the inlet and outlet of IPS device; configuring node device to make the data flow return to node device after passing said IPS device for normal transmission. It also provides the relative devices. This invention does not interrupt the process business during the configuration, and improves flexibility and compatibility for the configuration.

The embodiment of the invention discloses a method for establishing P2MP (point to multiple points) LSPs (label switched paths), comprising the following steps: the node receives a P2MP LSP establishment request message from an upstream node by the node, wherein, the request message carries the information of the P2P LSP needs to be transformed; the node judges whether the P2P LSP needing to be transformed exists on a first link according to the information of the P2P LSP needing to be transformed, and whether the first link is the link between the mode and the upstream node, if so, a resource of the P2PLSP on the first link is selected as the resource of the P2MP LSD on the first link, if not, a new resource is reserved as the resource of the P2MP LSP on the first link; the node sends the P2PMP LSP to the upstream node by the node to establish a first response message which indicates the resource of the P2P LSP on the first link; whether the P2P LSP needs to be transformed exists on the link is judged according to the information of the P2P LSP needing to be transformed in P2MP LSP establishment request message, if so, the bandwidth resource connected with the P2P LSP is reused, at the moment, the P2P LSP resource is not dismantled, thus realizing the uninterrupted transformation.

The invention discloses a method and device for backing up and smoothing TCP streams in a TCP hot standby architecture, relating to the field of data communication, including that when sending and receiving, the first active component close to the source first caches the stream, and then backs up the stream to the first standby component after success And update the length of the sending and receiving stream and then transmit it to the second active component; the second active component buffers the stream after receiving it, and after it is successfully backed up to the second standby component, it updates the length of the sending and receiving stream and transmits it to the next active component or remote End device; after receiving the confirmation of the next component based on the length of the sending and receiving flow or the confirmation of the remote device based on the TCP sequence number, the cache flow of the active and standby components can be deleted; after the standby is upgraded to the master, the protocol component is implemented based on the length of the sending and receiving flow Smoothing of buffered streams between and TCP components. The method and device for TCP stream backup and smoothing in the TCP hot backup framework of the present invention improve the recovery probability of the TCP-based MPLS / routing protocol after the backup is upgraded to the master, and improve the usability of the device.

The invention discloses a data packet transmitting method and a data packet transmitting device, and belongs to the field of internet communications. The data packet transmitting method includes that when a mobile terminal is switched from a home network to an outer area network, a first data packet which carries a first four-tuple and is sent by a first network address translation (NAT) server is received; the first four-tuple carried by the first data packet is modified as a second four-tuple, wherein the second four-tuple is a four-tuple which is carried by a data packet received by an application layer of the mobile terminal when the mobile terminal is in the home network; and then the first data packet is submitted to the application layer of the mobile terminal. The data packet transmitting device comprises the mobile terminal, a server and a control server. According to the data packet transmitting method and the data packet transmitting device, through the modification of the four-tuple which is carried by the data packet received by the mobile terminal, the four-tuple which is carried by the data packet received by the mobile terminal is enabled to remain the same before the switch and after the switch of the networks, and therefore the effect that when the mobile terminal is switched from the home network to the outer area network, services are not interrupted is guaranteed.

The invention discloses a data migration method of a distributed database and a distributed database migration system. The method comprises the following steps of: inquiring a search library according to a user identification (ID) of an appointed user to obtain position information of the appointed user data, and setting a corresponding lock sign as valid; obtaining the appointed user data according to the obtained position information, and writing the appointed user data in a target sub-library; if the writing-in is successful, modifying the position information of the user data in the sub-library as the position information of the written-in target sub-library, and setting the lock signal corresponding to the user ID of the appointed user as invalid, wherein the user data is in the search library and corresponds to the appointed user ID; if the writing-in is failure, setting the lock sign corresponding to the user ID of the appointed user as invalid, and deleting the appointed user data written in the target sub-library. By adoption of the technical scheme of the invention, the availability and consistency of the user data in the migration process can be ensured and the user service cannot be interrupted.