328results about How to "Realize forwarding" patented technology

The invention provides a packet forwarding method and a VxLAN gateway. The method comprises receiving a VxLAN packet, the load in which comprises a communication packet sent from a first VM to a second VM; determining a second VN1 of a subnetwork of next-hop equipment of the communication packet according to a first VN1 in the packet header of the VxLAn packet and the IP address of the second VM in the load; and packaging the communication packet according to the second VN1; and forwarding the packaged VxLAN packet to the next-hop equipment further through a tunnel corresponding to the second VN1. In this way, the condition that the forwarding of the VxLAN packet can be only realized after the VxLAN gateway corrects the communication packet in the load of the VxLAN is avoided, and the forwarding efficiency of the VxLAN packet is improved.

The invention discloses a communication method of a programmable virtualized router based on NetFPGA. The communication method comprises the steps that virtualized software is installed on a host to acquire a plurality of virtualized containers, and routing protocol software is installed in each virtualized container to acquire a virtualized router; virtualized ethernet cards are set up inside each virtualized router, wherein the number of the virtualized ethernet cards is equal to the number of hardware network interfaces of bottom-layer NetFPGA; a software network bridge is arranged to bridge between the virtualized ethernet cards and the physical hardware network interfaces, each virtualized router receives a data package from a NetFPGA board card network interface through the virtualized ethernet cards and the software network bridge, routing information is acquired through the treatment of each virtualized router, the routing information is transmitted to a register of the NetFPGA through the virtualized ethernet cards and the software network bridge, and then the retransmission of the data package is achieved through the NetFPGA board card network interface and an outside network. Network communication of a plurality of programmable virtualized routers can be achieved through the software network bridge.

The invention discloses a message forwarding method and device. The method includes the steps that gateway nodes annunciate virtual MAC addresses configured by node devices and a WLAN which the addresses belong to through a broadcast tree which can reach all the node devices in a large layer-2 network; after non-gateway node devices receive the virtual MAC addresses configured by the gateway nodes and the WLAN which the addresses belong to through the broadcast tree, corresponding first MAC address forwarding table items are generated, wherein the virtual MAC addresses and the WLAN are annunciated by all the gateway nodes; when data messages with destination MAC addresses being the virtual MAC addresses of the gateway nodes are received by non-gateway nodes, the data messages are forwarded directly instead of conducting large layer-2 network protocol packaging in matching table items of the first MAC address forwarding table items according to the destination MAC addresses; when the gateway nodes receive the data messages and it is determined that the destination MAC addresses of the data messages are the virtual MAC addresses of the data messages, a routing table is searched for to forward the data messages according to the destination MAC addresses of the data messages. By means of the message forwarding method and device, L3 unicast traffic forwarding based on the large layer-2 network is achieved.

New layer of data link layer protocol - data link procedure (DLP) is introduced in the invention to realize syncretizing adaptation between Ethernet and SDH / SONET in order to overcome shortage of current adaptation technique including not matched interface speed, not supporting dynamic bandwidth allocation based on packets, and not possible to transmit SDH / SONET on Ethernet, not compatible to IP and packet voice service etc. The method realizes direct transmission of Ethernet on SDH / SONET, and SDH / SONET on Ethernet as well as realizes compatibility to IP network and packet voice network. Using safety mechanism, network control management mechanism, flow management mechanism provided by DLP realizes network management control function such as two layer protected rearrangement, performance management, fault management etc. The method makes current communication network transits to united public network in next generation of using packet switching technology smoothly.

The present application discloses a method and apparatus for forwarding a message of a distributed virtual switch system. The method includes: a controller obtaining interface information corresponding to a VM, and adding a table item containing the interface information corresponding to the VM to a VLAN forwarding table, wherein the interface information corresponding to the VM includes: a DataPath ID of an OF switch connected to the VM, an MAC address of a virtual network card interface connected to the OF switch on the VM, a VLAN ID of the VLAN to which the dvport port connected to the VM on the OF switch belongs, and a port identifier of the dvport port; receiving a message sent by the OF switch; generating a table item of a flow table for guiding the forwarding of a downlink unicast message and storing the table item into a local flow table according to information in a message head of the downlink unicast message and the VLAN forwarding table when the received message is the downlink unicast message received by the OF switch via connecting an uplink port of a physical switch; and sending the generated table item of the flow table and the received message to the OF switch sending the message.

The invention provides a message forwarding method and system as well as a routing switch. The message forwarding method comprises steps of inquiring an MAC (Media Access Control) chart and obtaining an identification of a first target routing switch by a source routing switch according to a received target MAC address of the current Ethernet data frame; inquiring a neighbor connecting list of the first target routing switch and obtaining an identification of a second routing switch directly connected with the first target routing switch by the source routing switch according to the identification of the first target routing switch; and forwarding the Ethernet data frames and following received other Ethernet data frames with the same MAC address to a terminal device corresponding to the target MAC address through the first target routing switch and the second target routing switch by the source routing switch according to a TRILL (Transparent Interconnection of Lots of Link) routing table. According to the technical scheme of the invention, the waste of link bandwidth resources can be reduced, and the utilization rate of the link bandwidth resources is improved.

The invention provides a method and a switch for forwarding a message. The method for forwarding the message comprises the steps that: a first node obtains the message; the first node determines a forwarding path of the message when the message needs to be forwarded through a prescribed path; the first node determines at least one output interface according to the forwarding path; and the first node forwards the message to a second node through one of the at least one output interface. According to the embodiments of the invention, when the message is determined to be forwarded through the prescribed path, the forwarding path of the message is determined, the output interface is determined according to the forwarding path, and then the message is forwarded through the output interface, so that message forwarding through the prescribed path is realized in DCN Fabric.

The invention belongs to data acquisition and analysis gateways, and discloses a coal mine electromechanical equipment data acquisition and analysis gateway. The coal mine electromechanical equipment data acquisition and analysis gateway comprises a device and a method. The device comprises a core processing module, a data memory module, a program memory module, a controller area network (CAN) bus module, a serial port communication module, an Ethernet protocol conversion module, a fiber interface module, an RJ45 interface module and a power module. The core processing module is simultaneously connected with the data memory module, the program memory module, the CAN bus module, the serial port communication module and the Ethernet protocol conversion module. The Ethernet protocol conversion module is simultaneously connected with the fiber interface module and the RJ45 interface module. The power module is connected with all the modules and supplies power sources to all the modules. The method is based on a data receiving module, a data analysis module, a data uploading module and a gateway setting module, wherein the four modules are implemented through software to control working processes and working modes of hardware. The coal mine electromechanical equipment data acquisition and analysis gateway has the advantages of being capable of setting corresponding equipment names, interface types and communication protocols and realizing in-place analysis, storage and retransmission of data.

The invention provides a cross-network slice segmented routing forwarding method and device, and relates to the technical field of communication, and the method comprises the steps: obtaining a message to be transmitted, and determining that the message is forwarded between network slices at a local node; if the segment routing header SRH in the message satisfies a preset condition, searching a local network slice identifier mapping table for a network slice identifier corresponding to the parameter of the endpoint function in the message; obtaining a valid segment identifier eSID of the next network slice in the SRH; updating the destination IP address of the message based on the network slice identifier and the eSID to obtain an updated message; and searching an outlet of the updated message to the next hop according to the end point function, so that the updated message realizes cross-network forwarding in a local network slice. According to the invention, the message is forwarded from the previous network slice to the next network slice by using the network slice represented by the network slice identifier, the cross-network-slice transmission of the message is realized, and the service intercommunication of different network slices is realized.

New layer of data link layer protocol - data link procedure (DLP) is introduced between IP of network layer and each physical layer in the invention in order to overcome shortage of current method of intercommunication between IPv4 network and IPv6 network. Using DLP defined destination address code and source address code expresses forwarding equivalence class of IP address and source address of IP packet. Using forwarding equivalence class of IP packet as addresses in data link layer realizes forwarding and exchanging IP packets in two layers so as to realize intercommunication between IPv4 network and IPv6 network in data link layer. Features are: high efficiency of forwarding IP packets, safety and reliability, flux engineering capability, 50 ms protected rearrangement function, compatible to packet voice network. The method makes current IP network transits to united telecom public network in next generation smoothly.

The invention discloses a method and a device for forwarding a message, relates to the technical field of computers and mainly solves a problem that the forwarding performance of network message forwarding equipment in the existing technology cannot be linearly increased along with the increase of the number of CPU cores to cause lower message forwarding performance. The method comprises the following steps of querying whether a session connection corresponding to the message exists in an entity session table which is locally established by a user mode CPU according to the received message, wherein the entity session table includes a session connection processed by the user mode CPU, and the different user mode CPUs respectively maintain the own processed entity session tables; if yes, forwarding the message through the user mode CPU; if no, obtaining session connection establishment strategy information corresponding to the message from a kernel mode CPU based on the user mode CPU which receives the message; and establishing the session connection corresponding to the message based on the user mode CPU which receives the message according to the session connection establishment strategy information, and forwarding the message through the CPU which receives the message.

The invention designs a method for forwarding voice calls between mobile terminals without depending on the communication forwarding service support of an operator. Each terminal establishes wireless link connection by means of Bluetooth or the WiFi technology; after a terminal group is organized and a voice call forwarding route relation is determined, by means of the voice call forwarding route relation and the wireless link connection in the group, one terminal receiving the voice call of a communication base station can forward the voice call to the terminal which can be currently conveniently operated by a user; and the user also can initiate a voice call on one terminal, and chooses another terminal in the group in the forwarding route relation to initiate the voice call to the communication base station via the wireless links in the group. The method ensures that the user carrying a plurality of mobile terminals can conveniently answer / dial phone calls and phone numbers on the other terminals on one terminal while no extra call and hardware cost is produced, and thereby a multi-card multi-standby function on one terminal is realized.

The invention provides a router fast forwarding method and a system implementing the router fast forwarding method and belongs to the field of network technology. The router fast forwarding method includes: first, a router receiving and recognizing internet protocol (IP) data packets from an interface of the router and extracting the linkage information of the recognized IP data packets; second, the router finding a fast forwarding list corresponding to the interface; if the fast forwarding list exists, updating the fast forwarding list, wherein the step of updating the fast forwarding list includes active data processing and aging data processing, and if not, creating the fast forwarding list. Based on the method, the invention further provides the system of the router fast forwarding method, the system of the router fast forwarding method comprises a data receiving unit, a finding unit, a creating unit and a data packet processing unit. The existing problem that on the base that cost of routers is not increased, how the forwarding efficiency of the data packets is improved is solved, cost is greatly saved, and the forwarding efficiency of the routers is further improved.

A method for realizing multicast service includes configuring one or multiple VRRP group, binding any one of multicast group with any one of VRRP group, sending received multicast data message and multicast protocol message generated by itself to multicast receiving device by router in VRRP group according to assigned VRRP state.

The invention discloses a forwarding method and a device for the multicast message. The method includes the steps that for the unicast address of the multicast message which needs to receive the specified multicast group, the corresponding relationship of the multicast group address of the specified multicast group and the unicast address is configured; the received multicast group address in the multicast message is processed with matching; when the multicast group address of the multicast message is the specified multicast group address, the unicast address corresponding to the multicast group address is obtained according to the corresponding relationship; the multicast group address in the multicast message is replaced with the unicast address; and then the multicast message is forwarded. Based on the forwarding method and the device for the multicast message, the multicast group address of the received multicast message is processed with matching, realizing that the multicast message is switched to the unicast message; the switched unicast message is forwarded so that the user which is in the non-multicast network environment can receive the multicast data message.

The invention discloses a method and a device for forwarding control message and belongs to communication filed. The method comprises: dividing a first broadcast domain and a second broadcast domain; preserving marks of the first broadcast domain at all the interfaces of the public network side while preserving marks of the second broadcast domain at all the interfaces of the accessing side; receiving the forwarding message, studying the source medium access control address of the forwarding message and obtaining the corresponding relationship of the source medium access control address, the receiving interface and the broadcast domain mark and mapping the broadcast domain mark of the corresponding relationship and finally getting the corresponding source medium access control address forwarding item after mapping. The device consists of: a division module, a reservation module, a receiving module and a mapping module. By dividing broadcast domain and mapping broadcast domain mark, the invention does not have to modify the forwarding engine chip of the existing message forwarding device and satisfies the requirements of accessing side isolation in the two-layer network and realizes successful message forwarding.

The invention discloses a message transmitting method on the basis of an access control list. The message transmitting method includes packaging FC (fiber channel) messages to be FCoE (fiber channel over Ethernet) messages when receiving the FC messages; analyzing the FCoE messages to acquire VLAN (virtual local area network) ID (identity) and D_ID; searching corresponding output port and message updating information in the ACL (access control list) according the VLAN ID and the D_ID, and updating the FCoE messages according to the searched message updating information; if the searched output port is an FC port, unpackaging the updated FCoE messages to be the FC messages, and transmitting from the searched output port; and if the searched output port is not the FC port, transmitting the updated FCoE messages from the searched output port. On the basis of the same concept, the invention further provides message transmitting equipment which can support the FC port and realize transmission of the FCoE messages.

Disclosed are an SDN-based packet forwarding method and system, Openflow switches and a server. The method comprises: a source Openflow switch determining, according to port information, that a received data packet is a packet of a user; when a destination identity in the packet hits a mapping flowtable, obtaining a destination location identifier corresponding to the destination identity from the mapping flowtable; when the obtained destination location identifier is a location identifier of the source Openflow switch, sending the packet to a destination user according to port information corresponding to the destination identity; otherwise, encapsulating and sending the packet to a destination Openflow switch corresponding to the destination location identifier, and decapsulating the packet in the destination Openflow switch, so as to send the packet to the destination user according to port information of the destination user.

The invention discloses a data communication network message forwarding method base on a packet optical transport network device and an apparatus. Entire network routes at a PTN port side and an OTN port side in a P-OTN device are integrated to establish a DCN routing list. A three-layer conversion device receives DCN messages packaged in an Ethernet format of the P-OTN device, and the changing packaging is carried out on the DCN messages formats according to the types of a designation port, so that differences of concrete packaging formats between the PTN port and the OTN port are shielded, and DCN message forwarding between the PTN port and the OTN port in the P-OTN device is realized. Corresponding forwarding procedures are carried out at different ports, so that DCN intercommunication between the P-OTN device and an OTN device is realized. The data communication network message forwarding method base on the packet optical transport network device and the apparatus are used for solving problems of IP message intercommunication between the P-OTN port and an OTN port in the P-OTN device are solved.

The invention discloses a remote access reinforced and centralized monitoring system. The system comprises an operation and maintenance terminal, a bastion host, target equipment and auditor user terminal; the operation and maintenance terminal is connected with the target equipment through the bastion host, the bastion host is further connected with the auditor user terminal; the bastion host comprises an administrator interaction interface, a policy management module, a policy configuration base, a user interaction interface, a data processing module, an application proxy module, an auditorinteraction interface, an auditing module and an auditing log database. Relying on the conception of the bastion host, a unique entrance and a unified interaction interface are constructed between theoperation and maintenance terminal and the target equipment to record the instruction and operation process of the user operation in detail; the session is audited and monitored in a centralized way,the recording, forwarding, callback, monitoring and auditing of the session data are realized, and the behaviors of all maintainers are regulated and controlled.

The invention discloses a software-defined edge computing system oriented to Internet of Things and a resource allocation method, and the system comprises multi-access base station equipment deployedin a cellular manner, an edge node EN with data processing and computing functions is deployed at each base station, and meanwhile, the EN is connected to a centralized computing resource pool througha high-speed optical fiber. A software defined network and network function virtualization concept is introduced, a data level and a control level are separated, and a network function is decoupled from hardware equipment. An OpenFlow controller is adopted to realize centralized control, mobile management, data processing and resource distribution functions are executed upwards through a programmable application program interface, and the OpenFlow controller is communicated with a transponder downwards through an OpenFlow interface to realize forwarding of user data. Different characteristicsof the Internet of Things terminal user are considered, and the Stackelberg game is applied to the distribution process of computing resources of the Internet of Things terminal user, so that the resource utilization rate is improved to the maximum extent on the premise of ensuring the service quality of the user, and the requirements of more different types of users are met.

The invention discloses a method for forwarding traffic based on a virtual switch cluster. The method comprises the following steps of: setting an aggregation group member list which stores all member information of an aggregation group; setting an aggregation group traffic forwarding member list which stores information of aggregation group members which are used for forwarding the traffic, wherein the aggregation group traffic forwarding member list only comprises aggregation group local member information in an initial state; and determining that the traffic of physical equipment exceeds the total bandwidth of members in the aggregation group traffic forwarding member list, or exceeds a threshold value related to the total bandwidth, adding nonlocal members which are selected from the aggregation group member list to the aggregation group traffic forwarding member list, and forwarding the traffic according to the modified aggregation group traffic forwarding member list. The invention also discloses a system for forwarding the traffic based on the virtual switch cluster correspondingly. By the method and the system, the traffic can be forwarded in the scene of the virtual switch cluster on the premise of occupying limited bandwidth of a stack link as few as possible, so that the performance of traffic forwarding in the scene of the virtual switch cluster is ensured.

The invention discloses a multicast message transmission method in bidirectional protocol-independent multicast PIM (Personal Information Management) of communication equipment. The method comprises the following steps of: establishing a multicast transmission list by route equipment according to a route protocol; when receiving a multicast message, revising virtual local area network (VLAN) information or virtual private network (VPN) information of a message when the route equipment judges that an interface reached by the multicast message is the interface needing to be reached by the multicast message according to an access control list (ACL) sent by each interface, so as to match the information with the established multicast transmission list; and transmitting the multicast message with the revised information at a corresponding output interface of the multicast transmission list matched with the multicast message. The invention further discloses the communication equipment; with the adoption of the multicast message transmission method and the communication equipment of the invention, the multicast message transmission in the bidirectional PIM can be realized, the multicast transmission list does not need to be established by the communication equipment according to the quantity of VLAN openings of an input interface, so that hardware transmission resources are saved.

The embodiments of the invention provide a packet processing method and device. The method is applied to a forwarding node in an ICN, the forwarding node comprises a PIT, the PIT comprises one or more PIT items, and each PIT item comprises a content name and a port. The method comprises: receiving a data packet generated and sent by a destination device after the destination device receives a first interest packet forwarded by a source device via the forwarding node, the data packet carrying a content name which is the same as the content name of content requested by the first interest packet; the forwarding node, when forwarding the first interest packet, generating a PIT item corresponding to the first interest packet in the PIT; and when it is determined that the data packet carries a second interest packet, matching the content name carried by the data packet with the content name in the PIT item, and according to a port in the matched PIT item, forwarding the data packet to the source device. The technical scheme provided by the invention can improve the route efficiency of an interest packet in an NDN.

The invention discloses a network of a multilayer virtual private LAN service. A user side network comprises a UPE and a CE; the UPE and the CE in the user side network adopt a tree structure for connection; nodes of the same level in the tree structure are not communicated with one another; and after receiving node data of the lower level, a node only can transfer the received node data to the node of the upper level. The invention simultaneously discloses a data processing method based on the network of the multilayer virtual private LAN service, comprising the following steps of determiningwhether the data comes from the node of the upper level or the node of the lower level according to the identification information of the received data port after the node in the tree structure receives the data, transferring the data to the node of the upper level if determining the data comes from the node of the lower level, and broadcasting the data to the nodes of the lower level if not determining the destination address of the data. In the invention, the accessing of a plurality of UPE in the user side network can be supported, and the network storm formed in the user side network canbe also avoided.

The invention provides a method and device for achieving dynamic and intelligent routing of a data communication network. The method includes the steps that all factors having influence on performance of network communication constitute an evaluation set, an evaluation system constituted by all combinations of the factors serves as a basis for evaluating corresponding network path costs, corresponding paths are endowed with the corresponding costs, and therefore optimal paths are calculated. Intelligent control having flexibility to the network and high fine grit is provided through the method and device. Thus, intelligent routing can be conducted on cells in network communication, and dynamic and intelligent routing of the network can be flexibly achieved.

The present invention provides a message forwarding method and device. The method comprises: when a first VXLAN capsulation message sent by an access node is received and the capsulation processing of the first VXLAN package message is needed, the first VXLAN capsulation message is subjected to de-capsulation process; and when the target terminal and the source terminal of the message after determining decapsulation belong to the same visual forwarding example VSI and belong to different VXLANs and the outlet of the message is a VXLAN tunnel port of the data center edge node EDC node of a remote data center, the de-capsulation message is encapsulated to a second VXLAN encapsulation message according to the second VXLAN identification ID corresponding to the VXLAN tunnel of the EDC node of the remote data center, and the second VXLAN encapsulation message is forwarded through the VXLAN tunnel port of the EDC node of the remote data center. Through adoption of the embodiment of the invention, the message forwarding method and device can realize the two-layer message forwarding of cross VXLAN regions.

The invention discloses a method and device for processing dynamic host configuration protocol messages. The method comprises the steps that a DHCP request message forwarded by a first exchange endpoint containing a source virtual machine is received, wherein the DHCP request message carries an identification of a virtual local area network containing the source virtual machine; an IP address of a DHCP service node which serves the source virtual machine is determined; an IP address of a second exchange endpoint containing the DHCP service node is determined according to the determined IP address of the DHCP service node; a forwarding instruction is sent to the first exchange endpoint, wherein the forwarding instruction carries the IP address of the second exchange endpoint so that the first exchange endpoint can send the DHCP request message in a unicast mode to the second exchange endpoint according to the IP address of the second exchange endpoint. According to the method and device for processing the dynamic host configuration protocol messages, exchange endpoints of a target virtual machine can be determined in a unicast mode, consumption of the network traffic in the virtual local area network is reduced, and network resources are saved.

The invention provides a message transmission method, a message transmission device and a node. The method comprises the following steps of receiving BIER information which is sent by other nodes except a first node in a distance vector protocol Babel network through a Babel protocol extension mode and is used for acquiring bit indexed explicit replication (BIER) forwarding entries; acquiring theBIER forwarding entries according to the BIER information; and sending messages encapsulated in a BIER mode to other nodes according to the BIER forwarding entries. According to the message transmission method, the message transmission device and the node, a problem that related information of a BIER technology cannot be transferred in a network running a BEL routing protocol in the correlation technique can be solved, and a very important promotion effect is achieved on the development of multicast technologies and networks.