37results about How to "Improve data forwarding performance" patented technology

The invention provides a high-performance route forwarding method in cloud computing, relating to the field of network simulation. To solve a performance problem of cross-subnet data communication ina virtual network in a current Openstack host machine, the invention provides an SDN-based route control platform, a route table in a virtual network topology is mapped to a flow table in real time bybuilding a route decision layer and a data forwarding layer, consequently, forwarding of three layers of network data is controlled by a virtual route topology in the route decision layer, but an Openflow switch directly forwards a data packet. Further, a virtual network topology monitor module is designed to monitor route hop count of nodes in real time, guaranteeing forwarding fidelity of threelayers of network data packets and improving the performance of the virtual network. Creation of a typical network topological scene proves that the method is effective.

The invention discloses a method for improving data forwarding performance. The method comprises the following steps: obtaining a hash value corresponding to a data message according to analyzed data;searching and matching in a hash chain table according to the hash value obtained by calculation, judging whether matching succeeds or not, if yes, executing message sending, and if not, executing recording; querying corresponding address information in the hash chain table through the hash value, and performing message assembly according to the obtained address information to send out the packaged message from the opposite end Ethernet port; and processing the data message according to the protocol stack processing flow and inserting the data message into the hash chain table. The inventionfurther discloses electronic equipment and a computer readable storage medium. According to the method for improving the data forwarding performance, the messages of the same type are recorded for thefirst time, the subsequent messages are directly packaged into the forwarding packet, a protocol stack processing flow is not needed, the message processing of a CPU is reduced, the utilization rateof the CPU is reduced, and the forwarding efficiency is improved.

The invention provides a method and system for controlling a gateway mode, an SDN controller and access equipment, and relates to the technical field of the internet. The SDN controller is used for monitoring upper limit alarm information and alarm release information of access equipment; If the upper limit alarm information is received, the three-layer forwarding configuration information of a virtual router on the access equipment is transferred to a border gateway, so that the access equipment is switched from a gateway mode to a non-gateway mode; and if the alarm release information is received, the three-layer forwarding configuration information of the virtual router corresponding to the access equipment is restored from the border gateway to the access equipment so as to enable theaccess equipment to switch from the non-gateway mode to the gateway mode. Through the above technology, the forwarding process of three-layer cross-network segment traffic is effectively guaranteed, and the overall data forwarding performance is improved.

The invention discloses a method for realizing split horizon. An entry sub-module of distribution-typed network equipment in the core network sends the entry attributes and the content of an unknown address data packet to a forwarding matrix sub-module of the distribution-typed network equipment, and the unknown address data packet is a data packet which is received from the interface connected with the equipment of other core networks; after the forwarding matrix sub-module receives the entry attributes and the content of the unknown address data packet, the entry attributes of the unknown address data packet is compared with the exit attributes of an exit sub-module of the distribution-typed network equipment, if the attributes are same, the content of the unknown address data packet is not forwarded to the exit sub-module; otherwise, the content of the unknown address data packet is forwarded to the exit sub-module. The method reduces the times that the forwarding matrix sub-module copies and forwards the unknown address data packet and improves the data processing capability of the forwarding matrix sub-module.

This application provides a video on demand method and device. In this application, user authentication is handled by the vBRAS in the vBRAS resource pool managed by vBRASSO, making full use of the high control processing capability of the vBRAS resource pool, and the user's video-on-demand stream is processed by the POP switch, which fully utilizes the original POP switch. With high data forwarding capability, the separation of control and forwarding improves the high-performance processing of video-on-demand streams.

The invention discloses a method and a device for controlling the update of a token bucket, which are applied to the technical field of networks. The method comprises the following steps of: acquiring a byte count in a message to be transmitted and updating an aggregate value by utilizing an algebraic sum of the byte count and the saved aggregate value; and comparing the updated aggregate value with a preset byte count update threshold value, and if the aggregate value is greater than the byte count update threshold value, updating the token bucket of a channel and clearing the aggregate value. The method and the device provided by the embodiment of the invention can effectively reduce token updating frequency to further reduce the occupation of a network equipment processor on the premise of not influencing conventional bandwidth control accuracy.

The invention discloses an Ethernet-oriented adaptive dynamic flow control system and method, belonging to the technical field of data communication. Ethernet MAC module, the 40G Ethernet MAC module is connected to the peer network device; the checksum generation module includes a UDP protocol packet header encapsulation module, an IP protocol packet header encapsulation module and a ping-pong cache FIFO, which are connected in sequence, and a ping-pong cache FIFO and a transmission control module connect. By adopting the state monitoring algorithm and flow control method, the frame length and frame interval of the transmitted data are automatically determined, and the filling process of the transmitted data is adaptively started, paused, and terminated, so as to maximize the utilization of the transmission bandwidth of 40G Ethernet.

The present invention proposes a multi-processing unit routing system, including multiple processing units, a virtual routing kernel and a resource allocation / reservation control management module; the virtual routing kernel is connected to each processing unit through a data channel; the processing unit includes a service module and forwarding module; the resource allocation / reservation control management module is connected to each processing unit, responsible for the allocation, recycling, reservation and other control and management of resources required by different data forwarding classes, and establishes the corresponding export mapping relationship, And distribute the corresponding relationship between the forwarding class and the export to each processing unit; the present invention makes full use of the processing performance of each processing unit to avoid data exchange bottlenecks; ensure the reliable transmission of data between each processing unit inside the device; due to the The interface of the routing system of the multi-processing unit adopts a global description, so that the system can perform one-time routing for data forwarding and forward it immediately, and there is no need to centrally forward data by a certain processing unit.

The invention provides a high-performance routing and forwarding method in cloud computing, which relates to the field of network simulation. In order to solve the performance problem of cross-subnet data communication in the virtual network in the current Openstack host, a routing control platform based on SDN is proposed. table, so that the data forwarding of the three-layer network is controlled by the virtual routing topology in the routing decision layer, but the data packets are directly forwarded through the Openflow switch. At the same time, a virtual network topology monitoring module is designed to monitor the change of routing hops between nodes in real time, which improves the performance of virtual network while ensuring the fidelity of data packet forwarding in the three-layer network. And the validity of the present invention is verified by constructing a typical network topology scenario.

The invention discloses an NFV (Network Function Virtualization)-based network data transmission method and system and a storage medium. The method comprises the steps that the number of communication connections of original network data to be transmitted by a client is acquired, and the number of communication connections is used for representing the number of communication connections which need to be established with a network function virtualization (NFV) network element node before gateway equipment connected with the client transmits the original network data to the NFV network element node; if the connection number of the communication data is greater than the communication connection number threshold value, packaging the original network data at least based on the first packaging data to obtain a network data packet, the network data packet at least comprising the first packaging data and the original network data, the first encapsulation data is used for enabling a virtual private cloud VPC server to forbid recognition of the original network data; and transmitting the network data packet to an NFV network element node through the VPC server, the NFV network element node being used for transmitting the original network data. According to the invention, the technical problem of low data forwarding performance of the network element node is solved.

Embodiments of the present invention provide a data forwarding method and device based on node social similarity and individual centrality. The method is applied to the Internet of Things, and the Internet of Things includes multiple mobile nodes; the method includes: the current mobile node uses the law of universal gravitation to determine the next-hop mobile node; the individual centrality values ​​of the current mobile node and the next-hop mobile node represent respectively The quality in the law of gravity; the social similarity value between the current mobile node and the next-hop mobile node represents the distance in the law of gravity; the individual centrality value and the social similarity value are based on the distance between the current mobile node and the next-hop mobile node The encounter frequency and proximity are determined; the current mobile node transmits the data to be forwarded to the next-hop mobile node. Therefore, the embodiment of the present invention improves the data forwarding performance, so that the Internet of Things has the effects of high data delivery rate, low delay, less average hops in message delivery, low message delivery failure rate, and low energy consumption in the application.

The invention discloses a method for distributing and updating routing information in an SD-WAN network and a controller, relating to the field of controllers and routing, including collecting routing information after the SD-WAN controller is connected to the SD-WAN network, and converting the entire network The routing information, the routing information sent to the device, and the routing information associated with the network are stored separately; when the user establishes a service, the controller sends part of the routing information to the associated device as needed according to the network identifier and routing prefix, and stores the information of the network and the device. corresponding relationship, and refresh the mapping relationship between routing information and network. In the method for distributing and updating routing information in the SD-WAN network of the present invention, the SD-WAN controller serves as the control plane to establish a connection with the device, centrally manage the device, collect the routing information of the SD-WAN network and update it in time, so that the device is only responsible for forwarding, Improve data forwarding performance.

The invention relates to a method for realizing network address translation. This method is to reasonably divide the various tasks required for network address translation, and complete them respectively by CPRC and SDP in the C5 network processor, that is, to determine the address information that needs to be converted in the message and the calculation needs in the CPRC module. The difference value of the converted address information, and look up the table to determine the converted address information. In the SDP module, the calculation of the checksum value of the converted address information of the message, the conversion of the address information of the message, and the report The text is forwarded. The invention can improve the efficiency of network address translation, and provides a basis for wire-speed forwarding of messages based on network address translation in a network communication system.

The invention discloses a method for realizing split horizon. An entry sub-module of distribution-typed network equipment in the core network sends the entry attributes and the content of an unknown address data packet to a forwarding matrix sub-module of the distribution-typed network equipment, and the unknown address data packet is a data packet which is received from the interface connected with the equipment of other core networks; after the forwarding matrix sub-module receives the entry attributes and the content of the unknown address data packet, the entry attributes of the unknown address data packet is compared with the exit attributes of an exit sub-module of the distribution-typed network equipment, if the attributes are same, the content of the unknown address data packet is not forwarded to the exit sub-module; otherwise, the content of the unknown address data packet is forwarded to the exit sub-module. The invention reduces the times that the forwarding matrix sub-module copies and forwards the unknown address data packet and improves the data processing capability of the forwarding matrix sub-module.

The embodiment of the invention provides a data forwarding method and device based on an articulated naturality web. The method comprises steps of creating a plurality of virtual articulated naturality web terminals in the physical articulated naturality web server, receiving articulated naturality web conference data sent by the articulated naturality web devices in the first articulated naturality web device cluster by using the virtual articulated naturality web terminals, and sending the articulated naturality web conference data to the articulated naturality web devices in the second articulated naturality web device cluster by using the virtual articulated naturality web terminals, wherein the data forwarding performance of the virtual articulated naturality web terminal is higher than or equal to the data forwarding performance of the physical terminal, the sum of the data forwarding performance of the plurality of virtual articulated naturality web terminals is higher than thedata forwarding performance of one physical terminal. Therefore, if the data size of the Internet of Things conference data needing to be interacted between the Internet of Things equipment of the first Internet of Things equipment cluster and the Internet of Things equipment of the second Internet of Things equipment cluster is very large, a plurality of virtual articulated naturality web terminals can quickly forward a large amount of articulated naturality web conference data, so that the articulated naturality web conference can be smoothly carried out.

The disclosure provides a method and system for controlling a gateway mode, an SDN controller and an access device, and relates to the technical field of the Internet. The SDN controller listens to the upper limit alarm information and alarm release information of the access device; if it receives the upper limit alarm information, it transfers the three-layer forwarding configuration information of the virtual router on the access device to the border gateway, so that the access device is transferred from the gateway The mode is switched to non-gateway mode; if the alarm release information is received, the layer-3 forwarding configuration information of the virtual router corresponding to the access device is restored from the border gateway to the access device, so that the access device is switched from non-gateway mode to gateway mode . Through the above technologies, the forwarding process of the three-layer cross-network segment traffic is effectively guaranteed, and the overall data forwarding performance is improved.