90 results about "Ip switching" patented technology

Method for processing content of an Internet Protocol (IP) packet and method for processing a full broadcast IP packet. Processing content of an IP packet includes: extracting IP source and destination addresses and payload from the IP packet; and generating an IP frame encapsulating the IP source and destination addresses and the payload between a preamble field and an error checking field. Processing a full broadcast IP packet includes: receiving the full broadcast IP packet including an IP source address and a full broadcast IP destination address; ascertaining a closest matching IP address and a subnet thereof in a switching table of an IP switch; replacing the full broadcast IP destination address in the IP packet with a subnetted source address generated by applying the subnet mask to the IP source address; transmitting the IP packet to all IP addresses in the switching table within the subnetted source address.

Methods for modifying a switching table of an Internet Protocol (IP) switch. The methods include: receiving a dynamic host configuration protocol (DHCP) option 43 request from a host of a LAN at an access port of the IP switch; transmitting the request to a DHCP server; intercepting a DHCP response for the request from the DHCP server; extracting an IP address from the intercepted DHCP response; and adding the extracted IP address to a corresponding entry (specific to the access port) of a switching table of the IP switch. The methods include: receiving an IP frame at an access port of the IP switch; reading an IP source address from the IP frame; and in the switching table either: creating a new entry including the IP source address and its associated port identifier or changing an existing entry based on the IP source address and the access port.

Internet Protocol (IP) switch and method for switching an IP frame to an IP destination address. The IP switch includes access ports, interswitch ports, and a switching table. Each access port is connected to a corresponding host in a LAN. The interswitch ports are configured to be statically connected to routers within the Internet in connections that cannot be overwritten by dynamic learning. The switching table includes entries, each entry having an IP address, a port identifier, and a routing protocol internal metric indicative of confidence in the entry. The method for switching the IP frame includes: receiving the IP frame, reading the IP destination address from the IP frame, ascertaining a matching IP address in the switching table that matches the IP destination address, directing the IP frame to a specific port, transmitting the IP frame from the specific port to the IP destination address.

The invention relates to an IP invoking method and apparatus. The IP invoking method comprises the steps of configuring an IP switching policy and an IP interface; responding to an IP invoking request comprising a URL of a to-be-crawled network sent by a crawler application through the IP interface; and allocating an IP that can be invoked for the crawler application according to the URL of the to-be-crawled network and the IP switching policy, so as to enable the crawler application to crawl the to-be-crawled network according to the IP that can be invoked. The method can improve the crawling efficiency of the crawler application and the IP use ratio.

The invention relates to an N+M service backup mechanism based on IP switching, characterized in that M backup machines adopt a multi-backup mechanism for N main machines, wherein the multi-backup mechanism provides service instead of the main machines in an IP switching way, the backup machines regularly detect the main machines, an ICMP (Internet Control Message Protocol) response request message is sent through a PING (Packet Internet Grope) demandcommand, a reply message for receiving an ICMP response is recorded, the messages can be used for judging faults of networks or the main machines, and carrying out IP switching and service replacement, thereby achieving a mechanism with M-backup effects, wherein N>=1 and M>=1. In addition, the invention adopts a scheme that the main machines have double IPs, which solves the problem of IP conflict generated after the main machines recover after the switching. A No.1 responsibility system is adopted in the aspects of dispatch and detection. The invention has the advantages of simple and flexible deployment, good expansibility, support of multi-backup, high stability, support of different services of N servers, good applicability, simple dispatch for multi-backup, good usability, less amount of mutual detection of servers, less network expense and the like. The invention has important significance for enhancing the stability of the traditional large system and has favorable effect in the processes of actual development, deployment, application, maintenance, and the like.

The embodiment of the invention discloses a session management method based on a new generation satellite communication system, a system thereof and an apparatus thereof. The session management method based on the new generation satellite communication system comprises the following steps: satellites exchange processing load decisions and a control unit obtains calling party information, called party information and business information; a processing mode for a satellite on-board load is determined; if a calling party and a called party belong to different communication networks, the satellite on-board processing mode is determined to be transparent forwarding; if the calling party and the called party belong to a same communication network, and the calling part requests a voice service, the satellite on-board processing mode is determined to be satellite on-board subcarrier exchange; and if the calling party and the called party belong to the same communication network, and the calling party requests data business, the satellite on-board processing mode is determined to be satellite on-board IP exchange, and satellite on-board load processing mode instruction information is emitted to a satellite. Through the utilization of the technical scheme above, fusion with a ground EPS network is convenient, and a time delay in communication is reduced. In addition, the utilization of satellite on-board resources is improved.

The invention relates to the technical field of frame format definition and usage of a network monitoring data packet, and in particular relates to a method and applications of the network monitoring data packet with timestamp. The method is characterized in that a TAP is connected in series between a server and an IP (internet protocol) exchanger or a router connected with the server, a shunt circuit of the TAP is connected with a data collecting device, and the data collecting device is connected with a subsequent processor; the data collecting device performs frame format definition on an original data packet through copying various data packets sent by the server in real time and sending to the data collecting device by the TAP; original data packets of all types are collected by the data collecting device, and the original data packets are stored through an operating system; and the timestamp is selected according to required accuracy degree requirements, the timestamp is increased to the tail end of each original data packet, and is sent to the subsequent processor to subsequent processing. The invention provides an efficient and simple method for capturing and storing the data packets, and the time accuracy of the data packets is improved.

The invention discloses an emergency trunking communication system which belongs to the technical field of communication. The emergency trunking communication system has the following structure that a TETRA (Terrestrial Trunked Radio) terminal is connected with an IP (Internet Protocol)-TETRA base station in a wireless communication mode; and an IP switching network is respectively connected with the IP-TETRA base station, an operation and maintenance center, a dispatcher station, a media gateway and a mobile switching center on the basis of an IP technology through net wires. The emergency trunking communication system has the beneficial effects that currently, a global digital trunking communication system is rapidly developed and TETRA is to become a hot spot of seizing the future global trunking communication market; an iTETRA system has more flexible network architecture, higher data transmission speed and stronger user equipment functions; and particularly, after the IP technology and an SIP (System In Package) technology are adopted, the functions and services of the iTETRA system can well meet the private network commanding dispatching and emergency requirements of different industries.

This invention relates to networks for accessing multimedia services for mobile terminals of the non-packet mode including: a radio access network for accessing said mobile users, an IMS providing multimedia services to mobile users, a media gateway used in controlling the conversion between a circuit domain load and that of the IMS domain characterizing in also including: MAUA communicating with said radio access network and the media gateway to access said mobile users to the IMS by the radio access network and manage the users, which alters the load of the core net to that provided by the IP completely and gives up the traditional switch signaling such as ISUP/MAP.

The invention discloses an optical flow switching network scheduling method and an optical flow switching system. Each node in the system is mainly composed of an IP switch and an optical cross connection module. Each IP switch is provided with an optical flow switching module. The optical flow switching module comprises a virtual output queue and a link-wavelength-time resource table, source routing table, a scheduling module, a control packet transceiver module, an electronic/optical conversion module, a switching control module and a clock module. At the same time of transmitting optical data stream, the source node requests to start optical path reservation in advance for optical data stream in virtual output queue, detects the availability of optical paths corresponding to multiple destination nodes, combines queue head request priority and optical data stream transmission time, finds out the earliest available optical paths and reserves a time period for the optical paths. The invention has the following beneficial effects: 1, centralized scheduling nodes are not needed in the network, each node executes distributed scheduling, and the computational complexity is low; 2, thatoptical path schedule calculation and the data transmission are carried out simultaneously, the head time of the data transmission is shorten, the network throughput is improved, the average waitingtime of the queue is reduced, and the bandwidth utilization ratio is optimized; 3, adding time dimension to the scheduling allocation of link wavelength resources, which can improve the performance ofthe algorithm; 4, that device can be deploy based on the exist network equipment, and the application conditions are ripe.

A network transmitting IP data package directly on the physical media communicates from point to point in duplex operation mode without media visit control function, simplifies the frame packaging and its processing course for increasing the efficiency of transmission an reducing the relay of transmission, uses IP exchange device as a centre for connecting all IP terminal equipment on its interface and in the network IP address of IP terminal equipment will be IP address connected at the interface of IP exchange device without disposing any network parameter on itself as IP address of IP exchange device interface corresponding to each IP address of IP terminal equipment for quarding against address embrzzlement and increasing the network security.

The invention discloses practical system-level redundant communication network architecture. Switches of a backbone network of the network architecture adopt a VSS (Virtual Switching System) technology to realize redundancy, two mutually redundant network switches are equivalent to virtual machines and have the same IP (Internet Protocol) address, so that fault switching can be realized in the shorter time; when the virtual switches carry out data communication, IP switching and judgment of the switches are not needed, so that occupation of resources, such as a CPU (Central Processing Unit) and an internal storage, can be effectively reduced; in addition, the network topology is simplified from the logical level through the VSS technology, and the mutually redundant network switches share one gateway address, so that loop-less communication is realized and the reliability of a communication network system can be effectively improved; an optical fiber for connecting a front-end switch and a back-end switch of the backbone network adopts a GEC (Gigabit Ethemet Channel) technology to bind one Ethernet channel, so that the data transmission bandwidth of the communication network can be effectively widened and the information throughput rate can be improved, and thus the propagation delay for front-end communication and back-end communication is reduced.

The invention discloses a satellite-based IP switching label of a multimedia satellite communication system and distribution method thereof. The satellite-based IP switching label is composed of an entry label field, an exit label field, and a label calibration field. The distribution method of the satellite-based IP switching label comprises a forwarding equivalence class distinguishing stage, a forwarding label information table generating stage and a label distributing stage. Through the adoption of method disclosed by the invention, the promotion of the multi-beam GEO bandwidth multimedia satellite communication system capacity and the increment of the user number can be adapted, the occupancy rate of the control information to the space communication resource in the multi-beam GEO bandwidth multimedia satellite communication can be reduced.

The embodiment of the invention discloses a method and device for processing data. The specific implementation mode of the method comprises the following steps: receiving an access request to access atarget domain name; converting the target domain name into a preset high-security domain name; inquiring an IP corresponding to the high-security domain name in a domain name system; and sending theaccess request according to the IP corresponding to the high-security domain name, wherein if an EIP (Elastic IP) corresponding to the target domain name enables a black hole, the IP corresponding tothe high-security domain name in the domain name system is a preset high-security IP, otherwise, the IP corresponding to the high-security domain name in the domain name system is the EIP of the target domain name. According to the method for processing the data provided by the invention, in the whole process from triggering the black hole to removing the black hole, a user does not need to participate in the scheduling of high-security IP, and the high-security IP switching is completed in a full automatic way. The scheme guarantees the availability of services when being attacked, and guarantees the best experience of user services under normal circumstances.

An asynchronous switching system and method for processing SDI data streams, the system and method utilizing one or more buffers for cleaning up an output of a dirty IP switch.

The invention discloses a call center system. It concludes central platform subsystem and one or multi-client-terminal subsystem which carries out data transmission on the virtual special network built up on internet. The central platform contains a computer telephone integrated module, an IP exchanging module and primary virtual network module. And client's subsystem has a client data-base, VOIP telephone module and second virtual special-use network module, and VOIP telephone module and the computer telephone integrated module transfer data through IP exchange module.

The invention discloses a dynamic IP-based peer-to-peer communication system and a communication method thereof. The communication system comprises a plurality of communication terminals with dialing devices, wherein each communication terminal has a unique ID number; and the communication system also comprises mail servers; the communication terminals are connected with the mail servers after networking by dial up; and dynamic IP switching is finished by the mail servers after the communication terminals network by dial up. The communication system and the communication method provided by the invention can realize the address switching of a dynamic IP simply without adding equipment, thereby reducing the cost.

The invention relates to a DTMF (dual-tone multifrequency) sound transferring method, which comprises the following steps: confirming a forward RTP (real-time protocol) grouping from a media gateway as a DTMF frame through a BSS (base station subsystem) after creating a voice calling, and then processing the DTMF frame so as to obtain a corresponding in-band DTMF signaling frame and send the in-band DTMF signaling frame to an MS (memory system). The invention also provides a DTMF sound transferring device, which comprises a BSS, wherein the BSS comprises a detection unit, a processing unit and a sending unit; the detecting unit is used for detecting the forward RTP grouping from the media gateway as the DTMF frame after creating the voice calling; and the processing unit is used for processing the DTMF frame so as to obtain the corresponding in-band DTMF signaling frame and send the in-band DTMF signaling frame to the MS through the sending unit. Under the transferring mode of IP exchange technique, the BSS digitally processes the DTMF in the forward RTP grouping from the media gateway into the in-band DTMF signaling frame and sends to the MS in the manner of in-band DTMF signaling frame, so as to successfully send the DTMF digital A-D in the forward RTP grouping from the media gateway to the MS, overcome the defects of the prior art that the DTMF digital A-D (analog-digital) can not be sent to the MS, and efficiently realize various services related to DTMF.

The invention provides a video online transcoding system and a transcoding method thereof. The video online transcoding system comprises a transmission system, an intelligent terminal, a network management client terminal and a network management module. The transmission system comprises multiple main transcoding modules and one standby transcoding module. The input network ports of the main transcoding modules and the standby transcoding module receive local multicast signals via a signal source switch respectively. The output network ports of the main transcoding modules and the standby transcoding module are connected with the intelligent terminal in a signaling way via an IP switch respectively. The output end of the network management client terminal is connected with the transmission system, the network management module and the IP switch in the signaling way via a network management switch respectively. Time can be saved, dynamic balance scheduling can be performed and real-time transcoding can be realized so that the play effect can be greatly improved, video transcoding efficiency can be enhanced and fault frequency of video transcoding can also be reduced.