832results about How to "Improve forwarding efficiency" 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.

Strategy stream mode adopted in the disclosed method and device is realized to support forwarding both IPv4 and IPv6 in same physical pipeline. Based on data stream types of different target IP, multielement attribute set of corresponding data packet is picked up, and strategy stream id is calculated. Forwarding entries of strategy stream is searched accurately based on the said id. If there is matched entry of strategy stream found, then modifying relevant content and forwarding operation are carried out according to the said entry. If there is no matched entry, then corresponding treatment is carried out for the data packet by control plane based on the attribute of the data packet. Synthesizing information in control plane and entry information related to applications generates a piece of forwarding entry for local strategy stream. The said generated forwarding entry is distributed to forwarding plane for latter data packet to use so as to avoid looking up packet of IPv4 or IPv6.

Characters of the invention are that when receiving message of member relation report in Internet group management protocol (IGMP) sent from connected host, the three layer exchanger checks-up attribute of port, which receives the message. If the said port is not a port on pointed route connected to interface network segment, which belongs to the three layer exchanger, when receiving multicast data stream of multicast group from the port, the three layer exchanger through the port forwards multicast data stream to the said host directly. The invention saves bandwidth consumption effectively so as to raise efficiency for forwarding multicast stream.

The invention relates to the technical field of computers, in particular to a virtualized network networking system and a data packet sending method. The virtualized network networking system at leastcomprises a central switch of a spine layer, a client VXLAN switch and a gateway VXLAN switch of a leaf layer, a client connected to the client VXLAN switch and a gateway cluster connected to the gateway VXLAN switch, wherein the gateway cluster at least comprises two gateway devices, the gateway VXLAN switch receives a packaging bag corresponding to the data packet, carries out de-encapsulation,determines a target gateway device from the gateway cluster, and sends the data packet to the target gateway device, so that the target gateway device carries out network address translation, and thus the data packet after network address translation is sent to a target server, the load balancing is realized through the gateway cluster, the data packet encapsulation and the forwarding logic are separated, and the gateway device implementation performance and data packet forwarding efficiency are improved.

The invention provides a message forwarding method and device and network equipment thereof. The message forwarding method is used in virtual conditions, comprising the following steps: receiving a message from an ingress port; searching for a port mapping table to find the virtual device of the ingress port; processing the message on a forwarding component according to processing operations on the virtual device to obtain a processed message; searching for a forwarding table of the virtual device to obtain the forwarding path information of the message, wherein the forwarding path information includes the ingress port, an egress port corresponding to the ingress port and a next hop, a virtual device corresponding to the next hop and the virtual device corresponding to the ingress device share the forwarding component; and sending the processed message to the next hop through the egress port. The message forwarding method solves the technical problem of system resource waste during message forwarding among forwarding components of virtual switches in the prior art, and the forwarding efficiency is improved.

The invention discloses a user-driven centralized access control method for an SDN (Software Defined Network), which belongs to the technical field of computer applications. The method is characterized by comprising the following steps of providing a friendly and centralized management interface for a user by utilizing an REST API (Representational State Transfer Application Programming Interface); simplifying a global network view to an abstract network view; carrying out matching detection on a newly added access control list rule requested by a user; implementing access control based on the abstract network view in an active manner according to the user request; and dynamically responding to a network view updating event to update a flow table timely. According to the method, the centralized interface is provided for the user to simplify the network management; the access control is implemented in an active manner, so that the data packet forwarding delay is reduced; through carrying out the matching detection, a space of the flow table is saved; and furthermore, through dynamically responding to the network view updating event, the correctness of a high-level decision is guaranteed.

The invention discloses a data distribution system based on a CDN (content distribution network). The data distribution system comprises an access layer device, one or more relay layer devices and one or more margin layer distribution devices, wherein the access layer device is suitable for receiving a broadcasting data packet from a broadcasting source and converting the broadcasting data packet to a transmission data packet of a predetermined format; each relay layer device is suitable for performing relay transmission on the transmission data packet of the predetermined format converted by the access layer device through a uniform transmission protocol; each margin layer distribution device is suitable for receiving the transmission data packet of the predetermined format after relay transmission performed by each relay layer device and converting the transmission data packet of the predetermined format to a data packet of a terminal broadcasting protocol according to a terminal request and distributing the data packet to the terminal. The invention also provides a data distribution method based on the CDN. By utilizing the data distribution system and the data distribution method, the reliability of live stream can be greatly improved, and the transmission efficiency among backbone networks also can be greatly improved.

The embodiment of the invention discloses a packet forwarding method and equipment which relate to the field of network communication and are used for improving the packet forwarding efficiency of communication equipment. In the invention, when the packet to be forwarded is received, the communication equipment searches for the recorded protocol stack processing result of a historical packet belonging to the same data stream as the packet to be forwarded, processes the packet to be forwarded according to the searched protocol stack processing result, and forwards the processed packet. According to the invention, as the protocol stack processing is not needed for each received packet to be forwarded, and the packet to be forwarded can be processed according to the protocol stack processing result of the recorded historical packet, the processing time of the packet to be forwarded is shortened, and the packet forwarding efficiency of the communication equipment is greatly improved.

The invention discloses a method and a system for implementing a cloud computing distributed network based on OpenFlow. The method comprises the following steps that a cloud computing network platform sends a message notification to a virtual switch and / or an OpenFlow switch; when the virtual switch on a computing node or a network node receives the message notification, the virtual switch issues flow tables used for indicating input and output of traffic of a virtual machine; and when the OpenFlow switch receives the message notification, according to configuration data, issuing the following seven flow tables including a flow table used for processing a broadcast message, a flow table used for recognizing the network, a flow table used for generating two-layer forwarding information, a flow table used for filtering of a security group, a flow table used for generating three-layer distributed forwarding information, a flow table used for filtering of a firewall and a flow table used for forwarding.

The invention relates to a label distributing method of LSP middle node at serial type in MPLS system, and a relative device. Wherein, when the middle node device receives the label projection message, the middle node device based on the label information carried in said message, to generate the unique label information of node device and fix the transfer equivalent kind; the middle node device via fixed transfer equivalent kind distributes label. The invention can reduce the label consumption, save memory and improve the transfer efficiency.

Disclosed in an embodiment of the present invention are a data packet forwarding method and device for improving the matching efficiency when matching a data packet with a flow table. The method comprises: acquiring the attribute identifier of a data packet; searching a first flow table for a first flow table entry according to the attribute identifier, the first flow table entry comprising an action set, and the action set being specified operations corresponding to respective attribute identifiers of one data packet in a multi-level flow table; and if the first flow table entry is successfully found, then forwarding the data packet according to the action set corresponding to the first flow table entry matching the attribute identifier.

In order to solve the technical problems of the prior art, the invention provides a message transmission method, apparatus and system which can increase the forwarding efficiency wherein the method comprises the following steps: carrying by the first node of a designated path the path identifier of the designated path in the message; placing the path identifier in a message header extension layer or a destination address field or an outer layer tag wherein the path identifier is used to direct the forwarding of the message; and after the message carries the path identifier, forwarding the message to the downstream node of the designated path by the forwarding path of the designed path according to the path identifier forwarding entry. According to the technical schemes proposed by the embodiments of the invention, the forwarding node relies directly on the path identifier to check table and forward without other processing on the package of the message head, therefore, increasing the forwarding efficiency.

The invention discloses communication equipment for achieving out-of-band monitoring and management, which comprises a micro processing unit and a managed board card consisting of at least one switch fuse unit and at least one line processing unit, wherein the micro processing unit comprises an FPGA (Field Programmable Gate Array); each managed board card comprises a singlechip; the FPGA of the micro processing unit is connected with a CPU (Central Processing Unit) of the micro processing unit by an expanded local bus, connected with the singlechip of each managed board card by simulating UART (Universal Asynchronous Receiver / Transmitter) buses with the corresponding quantity, and used for receiving a management command from the CPU of the micro processing unit through the local bus, forwarding the management command to the singlechips of the corresponding managed board cards through the UART buses, receiving management response commands from the singlechips of the managed board cards through the UART buses, and sending the management response commands to the CPU of the micro processing unit; and the singlechips of the managed board cards are used for receiving the management commands from the FPGA of the micro processing unit through UART interfaces, and sending the management response commands to the FPGA of the micro processing unit through the UART interfaces. The invention further discloses a method for achieving the out-of-band monitoring and management and a master-slave switching method. The communication equipment, the method and the master-slave switching method can effectively improve the data forwarding efficiency.

The invention discloses a data transmission method and device of a multilink transparent transmission interconnection network, wherein the method comprises the following steps: a TRILL (Trill) exchanger receives a well-known unicast data frame, wherein the well-known unicast data frame comprises a TRILL data frame or an Ethernet data frame; if the TRILL data frame is received, the TRILL exchanger judges whether the TRILL exchanger is the TRILL exchanger at the penultimate hop of the TRILL data frame according to the information carried in the TRILL data frame and a TRILL forwarding table; and if a judging result is positive, the TRILL exchanger unpacks the TRILL data frame to obtain the Ethernet data frame and transmits the Ethernet data frame to the last hop of TRILL exchanger. By using the method, the problem that the ERB (Edge Router Bridge) processing performance in the traditional TRILL network turns into the performance bottleneck of Trill Campus can be solved.

The invention provides a VXLAN (Virtual Extensible Local Area Network) message forwarding method and device. The method and the device are applied to a local end VTEP (VXLAN Tunneling End Point) device. The method comprises the steps of receiving an IP address of a second VM (Virtual Machine) transparently transmitted by an opposite end VTEP device through a VXLAN gateway device, and the IP address of the opposite end VTEP device; establishing a mapping relationship between the IP address of the second VM and the IP address of the opposite end VTEP device, and establishing a VXLAN tunnel between the local end VTEP device and the opposite end VTEP device based on the mapping relationship; sending a unicast message to the opposite end VTEP device based on the VXLAN tunnel when the unicast message sent to the second VM by a first VM is received, thereby enabling the opposite end VTEP device to forward the unicast message to the second VM. According to the method and the device, the problem that the forwarding efficiency is relatively low due to the fact that workloads of the VXLAN gateway device are relatively high in a three-layer cross-tunnel forwarding process of a VXLAN message is solved.

The invention discloses a message forwarding method and device of a distributive virtual switch system. The method comprises the steps that after an OF switch is established, an aggregation set corresponding to the OF switch is established, and at least two uplink ports, connected with a physical switch, of the OF switch are added to the aggregation set; an uplink message forwarded by the OF switch is received, and the uplink message is received through the OF switch via a dvport connected with a VM; the aggregation set corresponding to the OF switch is determined, and one uplink port in the aggregation set is selected as an outlet port of the uplink message according to the related message of a message header of the uplink message and the aggregation algorithm corresponding to the aggregation set; a streaming table item used for guiding forwarding of the uplink message is generated and stored in a local streaming table, wherein the executing actions of the generated streaming table include the forwarding of the uplink message through the outlet port, and the generated streaming table item and the uplink message are sent to the OF switch sending the uplink message.

This invention provides a method for accurately forwarding IP multicast port in three layers of exchange including: 1 keeping related VLAN ID for received messages and concrete physical numbers of VLAN, 2 generating and maintaining a multicast rout port image list which stores the multicast rout source address, the target multicast address, input interface VLAN ID and the physical port number and the output interface VLAN ID and physical port number listing 3 sending the multicast route items of quad mode to a forward chip according to the corresponding multicast route port image list items, the chip generates input and output interfaces as the multicast forward item of the concrete physical port under VLAN 4 The forward chip forwards the data message according to the multicast forward items.

The invention discloses a method for realizing IPv6 fast route lookup. The data structure of a multibit tree is used to store a route table, then a compression method is used to compress a repeated key and an empty key generated by prefix expansion in a table in a branch node, and a mapping is made by using key index values before and after the compression. According to the method, on the basis of not increasing memory occupation, the adding, lookup and deletion speeds of an IPv6 route can be raised by multiple times.

The embodiment of the invention discloses a method and equipment for forwarding messages and relates to the technical field of wireless communication. The method and the equipment for forwarding the messages are used for increasing the message forwarding efficiency of communication equipment. The method comprises the following steps: after the messages are received by a gateway board, reading a preconfigured forwarding table, wherein the forwarding table contains at least one table entry, and each table entry contains message header information and the home address of service board; finding out table entries containing the message header information in the messages in the forwarding table; if the table entries containing the message header information in the messages are found, sending the messages to the service boards which correspond to the home addresses of the service boards in the found table entries; if the table entries containing the message header information in the messages are not found, selecting one of the service boards, and sending the messages to the selected service board; and after the messages sent by the gateway board are received by the service boards, processing the messages. By adopting the method and the equipment for forwarding the messages, the message forwarding efficiency of the communication equipment can be increased.

Data overhead of mesh-based multicast ad hoc routing protocols are controlled by adaptively adding redundancy to the minimal data overhead multicast mesh as required by the network conditions. The computation of the minimal data overhead multicast mesh is NP-complete, and therefore an heuristic approximation algorithm inspired on epidemic algorithms is employed to increase tractability of a solution. A mobility-aware and adaptive mesh construction algorithm based on a probabilistic path selection is provided, which is able to adapt the reliability of the multicast mesh to the mobility of the network. Simulation results show that the proposed approach, when implemented into On-Demand Multicast Routing Protocol (ODMRP), is able to offer similar performance results and a lower average latency, while reducing data overhead between 25 to 50% compared to the original ODMRP.

The invention discloses a switch transmission control method, a switch transmitting method and related equipment in an SDN (Software Defined Network), which are used for solving the problems of a huge data volume of a flow table and difficulty in updating and maintenance on the flow table, which are caused by establishment of a flow table entry for each user or each data connection, and solving the problem of difficulty in implementing flow transmission based on an IP (Internet Protocol) quintuple under the condition of massive terminals. The switch transmission control method comprises the steps of determining a transmission path of a data packet in the SDN, and an entrance switch and an exit switch on the transmission path; according to the transmission path, determining a global path identifier for uniquely identifying the transmission path; and determining a first flow rule according to packet header information of the data packet and the global path identifier, sending the first flow rule to the entrance switch, determining a second flow rule according to the global path identifier, and sending the second flow rule to the exit switch.

The embodiment of the invention discloses a method, a device and a system for transmitting messages. The method comprises the following steps that an interface board transmits a first message received to a given service board according to a configured general route encapsulation GRE route information sent down by a master control board, and then the service board encapsulates the first message; the interface board receives the encapsulated first message transmitted by the service board and transmits the encapsulated first message to the outside according to the configured GRE route information sent down by the master control board; and the interface board receives a second message which is sent by the outside and responds to the encapsulated first message and transmits the second message to the service board according to the configured route information, and then the service board decapsulates the second message. By utilization of the embodiment of the invention, simultaneous transmission of a large number of messages to the same service board for treatment is avoided and the transmission efficiency is improved.

Provided in an embodiment of the present invention are a packet forwarding method and device. The method comprises: a first network virtualization edge (NVE) receives a first packet transmitted by a first tenant end system (TES), the destination IP address of the first packet being the IP address of a second TES, the destination MAC address of the first packet being a gateway MAC address corresponding to the first NVE, the first TES and the second TES belonging to the same layer 3 VPN; the first NVE obtains an access VN ID of the first TES according to at least one of the first packet and the port information for receiving the first packet, and obtains the identifier of a layer 3 VPN instance of the first TES; the first NVE performs layer 2 termination on the first packet, looks up a route forwarding table corresponding to the identifier of the layer 3 VPN instance of the first TES, to obtain an entry corresponding to the IP address of the second TES, and encapsulates the first packet into a network virtualization overlays(NVO3) packet according to the entry; the first NVE forwards the NVO3 packet to the second NVE by layer 3, and the second TES accesses the second NVE.

The invention discloses a DCN configuration method, a gateway network element and a data communication system. The gateway network element transmits a broadcast message having the IP address of a network management server to a non-gateway network element in a management area. The network element mark registration information transmitted by the non-gateway network element after the broadcast message is sent is acquired. A public network IP address and a private network IP address for device management are distributed by the non-gateway network element, and a NAT mapping table is formed and stored. The NAT mapping table is registered in the network management server. The message exchange between the non-gateway network element and the network management server can be achieved based on the NAT mapping table. When the message exchange is conducted between the network management server and the non-gateway network element, the gateway network element only needs to conduct a NAT conversion on the message. Accordingly, the CPU load of the gateway network element is reduced, the network element number in the management area is effectively increased and the forwarding efficiency of the message in the management area is improved.

The invention provides a message forwarding method and a message forwarding device. The method comprises the following steps: receiving a message to be forwarded by a network device, and acquiring a 5-tuple group; finding out whether a message forwarding session table matched with the 5-tuple group exists in the existing message forwarding session tables, if so, processing the message to be forwarded through a processing manner recorded in the matched message forwarding session table, and transmitting the processed message; if not, finding out whether a blacklist session table matched with the 5-tuple group exists in the existing blacklist session tables, if so, discarding the message to be forwarded, and if not, processing the message to be forwarded by the network device; if the message to be forwarded is processed and successfully transmitted, establishing the message forwarding session table of the 5-tuple group; recording the processing manner into the message forwarding session table; if the message to be forwarded is discarded by any one module in processing, establishing the blacklist session table of the 5-tuple group; and recording a discarding module and discarding reasons into the blacklist session table. With the adoption of the message forwarding method and the message forwarding device, CPU (central processing unit) consumption can be reduced, and the forwarding efficiency is improved.

The invention discloses a multi-band broadband wireless access system and method, wherein the system comprises an antenna group, a multi-band broadband access device and an access device; and the antenna group, the multi-band broadband access device and the access device are in communication connection sequentially. According to the multi-band broadband wireless access system and method provided by the invention, because the multi-band broadband access device is used, the occupation band thereof can be flexibly adjusted according to a current band resource occupation condition; when authorizedspectrum resources are in an idle state, other devices use the idle spectrum resources; not only a band is occupied; the idle spectrum resources can be sufficiently utilized; the utilization rate ofthe spectrum resources is increased; and thus, the throughput capacity and the multi-hop service forwarding efficiency of a mobile Ad-Hoc network are easily increased.

The invention relates to a method for making label allocation on ring network, calculating routing distance and implementing backup switching, and its kernel: separately allocting labels to node on ring network along clockwise and anticlockwise rings, respectively, and calculating routing distances between the node and lower-ring nodes, and based on the calculated results, respectively establishing corresponding relation between master and backup label exchange paths between the node and lower-ring node; when the master label exchange path fails, it switches the operating path to the backup label exchange path according to the corresponding relation. Thus, when adding / removing a node to / from a ring, the ring network can still operate; moreover, it is based on MPLS and transmits messages by the shortest path, thus raising transmitting efficiency; it can run failure detection protocol between adjacent nodes, thus increasing detecting and backup switching speeds; in addition, the invention supports inter-ring connection and connection with other MPLS networks.

The invention provides a system for issuing a gray level. The system comprises a Redis server and an Nginx server, wherein the Nginx server is used for checking if a shunt strategy identity exists in Cache; if the shunt strategy identity does not exist, the Nginx server is capable of reading a present shunt strategy identity from a preset position in the Redis server and checking if a strategy analysis file and a user information analysis file corresponding to the present shunt strategy identity exist in a memory according to the present shunt strategy identity; and if the strategy analysis file and the user information analysis file do not exist, the Nginx server is capable of loading the strategy analysis file and the user information analysis file existing in a form of character string in the Redis server into the memory through lua in the manner of loading the character string according to the present shunt strategy identity and then issuing according to the shunt strategy analyzed by the strategy analysis file. In the process, when a new shunt strategy is added, the reload or the restarting of the Nginx server is not required. Besides, the invention also provides a method for issuing the gray level.

The invention relates to a gateway dynamic routing method and device, computer equipment and a storage medium. The method comprises the steps of receiving a user request, wherein the user request carries a tenant domain name and an application identifier; searching a server cluster identifier corresponding to the tenant domain name from a routing rule according to the tenant domain name; obtainingan application identifier set corresponding to the server cluster identifier from the routing rule; according to the application identifier, determining a node identifier of a micro-service node corresponding to the user request from an application identifier set; and forwarding the user request to the micro-service node corresponding to the node identifier. By adopting the scheme, the forwardingefficiency of gateway routing can be improved.

The invention discloses label distribution method, device, system and network equipment, and belongs to the field of network communication. The label distribution method comprises generating a first label exchange path to second forwarding equipment for first forwarding equipment, generating an FTN for the first forwarding equipment, generating an ILM for third forwarding equipment, and sending the FTN, the ILM and the first label exchange path for the first forwarding equipment and the third forwarding equipment, wherein the first label exchange path passes through the third forwarding equipment. The label distribution device comprises a path generation module, an FTN generation module, an ILM generation module and a sending module. The label distribution device distributes the same label to all forwarding equipment located on the same label exchange path, and in the data package forwarding process, a middle label exchange router does not conduct label popup / press-in operations any more after receiving a data package but directly forwards the data package, and therefore the effects that label distribution time is shortened and forwarding efficiency is improved are achieved.