831results about How to "Improve forwarding efficiency" patented technology

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.

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 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 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 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 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.

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 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 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.