239 results about "Packet forwarding" patented technology

The invention relates to the technical field of integrated circuits and computer networks, and particularly discloses a transmission control and intelligent scheduling system for an integrated chip, and the system sets a dual-mode decision and dynamic switching mechanism for each routing node. Calculating dynamic characteristic parameters including an instantaneous value, a first-order trend and a second-order acceleration; when the parameter is matched with a pre-stored abnormal feature set and the load exceeds a threshold value, the node is immediately atomized and switched to a predefined security scheduling strategy loaded from a shared storage area, and otherwise, the node generates a scheduling decision according to self-adaptive decision logic continuously optimized based on historical performance feedback; all the nodes carry out data packet forwarding control according to the current execution strategy; and the system also periodically realizes federated global knowledge evolution according to the quality evaluation result of the self-adaptive decision of each node.

In a communication method, a first session management function (SMF) determines, based on a group identifier of a group to which a target user equipment belongs, a first user plane function (UPF) connected to a first user equipment, where the first user equipment is an access point user equipment in the group; the first SMF sends an Internet Protocol (IP) address of the target user equipment and / or the group identifier to the first UPF; and the first UPF establishes a General Packet Radio Service (GPRS) Tunneling Protocol User Plane (GTP-U) tunnel between the first UPF and the second UPF, and stores a correspondence between the IP address and the GTP-U tunnel to implement packet forwarding.

A data processing method and apparatus, and a network device. The method is applied to a network device comprising a plurality of data transmission ports, and comprises: parsing an initial data packet transmitted by a data transmitting end, and determining a packet feature of the initial data packet; when the initial data packet is determined as a target data packet on the basis of the packet feature, determining a forwarding policy of the target data packet on the basis of the packet feature and a packet forwarding routing table, wherein the packet forwarding routing table is generated by means of load balancing states of the plurality of data transmission ports; and on the basis of the forwarding policy of the target data packet, determining a target data transmission port from among the plurality of data transmission ports, and using the target data transmission port to forward the target data packet to a data receiving end.

The invention discloses an inter-satellite routing processing method and device based on a controller, related equipment, a product and a storage medium. Comprising the following steps: receiving a hypertext transfer protocol (HTTP)-based addressing request sent by at least one satellite; the addressing request comprises source address information, destination address information and to-be-transmitted data information; sending an HTTP-based addressing response to the at least one satellite based on the addressing request; determining a control instruction issued by a switch on each satellite according to the source address information, the destination address information and preset mapping information; sending a control instruction to at least one satellite; the control instruction is used for the at least one satellite to judge whether the forwarding time delay of at least one route between the first satellite and the second satellite exceeds the effective time of a preset forwarding route, and if the forwarding time delay of the at least one route does not exceed the effective time of the preset forwarding route, forwarding the at least one route to the second satellite. And carrying out IP packet forwarding on the to-be-transmitted data information according to the control instruction.

This invention discloses a bypass transmission architecture for encrypted network interface cards (NICs) based on parallel feature extraction. The architecture includes: a packet stream input interface, a control path unit, a data path unit, a decision window merging unit, a fragmentation-aware incremental checksum correction engine unit, and a security control unit. This invention can reduce forwarding latency, improve transmission determinism and resource utilization, and enhance packet forwarding efficiency in high-speed network scenarios. By using a deterministic delay storage module that matches worst-case latency, timing synchronization between control flow and data flow is achieved, reducing the risk of timing races and rule misjudgments. Simultaneously, the fragmentation-aware incremental checksum correction engine reduces the risks of insufficient fragmentation packet compatibility, checksum miscalculations, and resulting packet loss in traditional solutions.

The application provides a data transmission method, a distributor, a data transmission system and a medium, relates to the technical field of computers, and the method is applied to a distributor device arranged between a zero-trust server cluster and a switch, and comprises the following steps: receiving a client virtual IP and a target server MAC address sent by a target server after the target server is logged in at a client and is assigned a virtual IP; writing the corresponding relationship into a first ARP table; receiving an access data packet sent by the target server, forwarding the access data packet to a business system through the switch; receiving a response data packet sent by the switch, the response data packet having a client virtual IP as a destination IP; querying the first ARP table according to the destination IP to obtain the target server MAC address, forwarding the response data packet to the target server, and returning the response data packet to the client by the target server. According to the application, the virtual IP and the server MAC are mapped and stored by the distributor, accurate packet forwarding of the cluster is realized, and resource waste caused by multicast of the switch is avoided.

The application discloses a spontaneous packet forwarding method and device, electronic equipment and storage medium, and the method comprises the following steps: an uplink module of a packet flow pipeline marks a spontaneous packet after obtaining the spontaneous packet, and forms a to-be-forwarded spontaneous packet; the uplink module of the packet flow pipeline collects packet information according to the to-be-forwarded spontaneous packet; the uplink module of the packet flow pipeline writes the collected information into the to-be-forwarded spontaneous packet, forms a first spontaneous packet, and redirects the first spontaneous packet to a module of a next flow pipeline; the module of the next flow pipeline collects information of the flow pipeline, forms a target spontaneous packet after collecting information of all the flow pipelines, and forwards the target spontaneous packet, thereby solving the problems of poor timeliness and heavy processing burden of a server when collecting information through a spontaneous packet, effectively ensuring the timeliness of information and effectively reducing the processing burden of the server.

Embodiments of the invention relate to Layer 2 network extensions over Layer 3 networks using packages. Techniques are disclosed for session-based routing within a Layer 2 (L2) network of an Open System Interconnect (OSI) model extended over a Layer 3 (L3) network. In one example, an L2 network connects a first client device to a first router and a second client device to a second router. And the L3 network is connected with the first router and the second router. A first router receives, from a first client device, a non-session-based L2 frame destined for a second client device. The first router forms an L3 packet including an L3 header specifying L3 addresses of the first router and the second router and a protocol of L3 service selection based on the L2 frame, a payload including the L2 frame, and metadata including a session identifier clearly identifying the L2 frame, and forwards the L3 packet to the second router. The second router restores the L2 frame from the payload and forwards the L2 frame to the second client device.

This application discloses a method for updating the forwarding address of a message, a routing communication method, and related apparatus. This method determines the shortest path from a first node to all nodes in the autonomous network when a path update occurs. It then determines whether a node is a problem node based on a comparison between its shortest path and historical paths. If the node is a problem node, the address of its corresponding first next-hop block is updated based on the shortest path from the first node to that node. This process quickly locates the problem node and updates the address of its corresponding next-hop block, thereby updating the next-hop address corresponding to the routing prefix in the associated prefix set of the next-hop block—that is, updating the message's forwarding address. This process eliminates the need to re-determine the next-hop address of each routing prefix based on the shortest path of all nodes during path updates, saving computational resources and improving network performance.

The application relates to a method and device for message forwarding, which are applied to the field of sending messages by using DSCP technology. The method comprises the following steps: a router receives a first message from a terminal device; a hash table is managed according to the message type of the first message; in the case that n quintuple information is added in the hash table, it is determined whether a data stream corresponding to the kth quintuple information enters hard acceleration; in the case that the data stream corresponding to the kth quintuple information has entered hard acceleration, a hard acceleration table entry corresponding to the kth quintuple information is cleared; a DSCP marking process is performed on a detected downlink message, and the downlink message at least comprises a data message corresponding to the kth quintuple information. Therefore, for the kth quintuple information whose data stream has entered hard acceleration, the data stream corresponding to the kth quintuple information can be reloaded on a protocol stack by clearing the hard acceleration table entry of the kth quintuple information, so that the problem that the data stream which has entered hard acceleration cannot be marked by DSCP is solved.

The invention discloses a hybrid processing method based on concurrent service acceptance, and relates to the field of computer task processing, and the method comprises the steps: receiving a hybrid service handling request, carrying out verification according to preset protocol configuration information, and carrying out the grouping forwarding of the hybrid service handling request according to a service type; the protocol configuration information is realized by adopting a tree-shaped data structure; each type of business analyzed from the mixed business handling request information is separated, an original corresponding sub-business verification process is called for verification and unified fee calculation, sub-orders of each business type are generated, and processing priorities of the sub-orders are calculated according to the business types and business relations; and submitting the mixed service sub-orders according to the priority sequence. According to the method, the system processing time is shortened through highly concentrated service verification and fee calculation, the processing efficiency is improved, the mixed service sub-order processing sequence is adjusted according to the priority, and flow control of processing each service by multiple services is accepted at the same time.

Methods and systems relate to packet forwarding that includes a network device receiving a message from a second network device and that has a destination address of a third network device. The circuitry of the network device determines that a connection between the second network device and the third network device has been previously opened by the third network device. In response to the determination that the connection is open and in response to receiving the message, the circuitry transmits the message towards the third network device.

This application provides a packet forwarding method and device. The method involves: determining whether to perform Layer 3 forwarding based on the destination MAC address of the Ethernet packet (which is the gateway MAC address); searching the link layer address mapping table based on the destination IP address of the inner IP packet of the Ethernet packet; obtaining a new destination MAC address from the matching link layer address mapping table entry when a matching entry for the destination IP address is found; searching the MAC address table based on the new destination MAC address; obtaining the outgoing port and outgoing VLAN from the matching entry when a matching entry for the new destination MAC address is found; modifying the destination MAC address, source MAC address, and incoming VLAN of the Ethernet packet to the new MAC address, gateway MAC address, and outgoing VLAN, respectively; and sending the modified Ethernet packet through the outgoing port.

1. The name of the design product: intelligent gateway. 2. The use of the design product: connecting different network devices, responsible for data packet forwarding, protocol conversion and security control functions. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

This application provides a rule issuance method, a packet detection method, an apparatus, a network element, and a storage medium. The rule issuance method includes receiving an Application Authorization Request Initial Message; issuing Policy Control and Charging (PCC) rules based on the Application Authorization Request Initial Message, wherein the PCC rules carry the service media type; and replying to the Network Protocol Multimedia Subsystem (IMS) with an Application Authorization Response Initial Message. The above technical solution reduces the complexity of packet detection and improves packet forwarding performance.

The embodiment of the invention provides a protocol implementation protection method and device in a grey box scene and a medium, and belongs to the technical field of data processing, and the method specifically comprises the steps: obtaining a data packet sent by a client, and sending the data packet to a request data packet receiving module; judging whether the structure of the data packet is legal; judging whether the deep logic of the data packet is legal or not; forwarding the data packet to a server through a request data packet forwarding module; the server performs service processing after receiving the data packet, and realizes that an internal state information collection module collects internal information of the server through a protocol; judging whether the server side is abnormal or not according to the internal information, if yes, learning a condition triggered by the abnormity through an abnormity learning module, and replying an error information packet to the client side through an abnormity notification module according to the abnormity information of the session, and if not, returning the abnormal information of the session to the client side. And if so, the server sends the response packet to the response data packet forwarding module and forwards the response packet to the client. Through the scheme disclosed by the invention, the safety and the adaptability are improved.

A network device that provides packet forwarding services includes: a command line interface and a route manager. The command line interface is programmed to: obtain a command, for updating a routing control function, that specifies positional information; identify a portion of the routing control function based on the positional information; identify a syntactic style associated with the portion of the routing control function; make a modification to the routing control function to obtain a modified routing control function; and update operation of the network device based on the modified routing control function. The route manager is programmed to process a route for forwarding packets of the network device based on the modified routing control function, after the operation of the network device is updated, to obtain a processed route for forwarding the packets.

The embodiment of the invention provides network equipment and a message forwarding method, and relates to the technical field of communication, and the specific scheme is as follows: the network equipment comprises a CPU and exchange hardware, and the CPU is in communication connection with the exchange hardware; the CPU obtains a first message received through the ingress port, and obtains a target flow classification matched with the first message, a target QoS strategy where the target flow classification is located and a target egress port for forwarding the first message; based on the target flow classification and the target QoS strategy, determining queue information; sending the queue information, the port number of the target output port and the first message to exchange hardware; and the exchange hardware analyzes the received data to obtain the queue information, the port number of the target output port and the first message, writes the first message into the queue corresponding to the queue information under the target output port, and schedules the first message according to the queue corresponding flow. By applying the scheme provided by the embodiment of the invention, the message forwarding capability of the network equipment can be improved.

The embodiment of the invention provides a message forwarding method and a router, and relates to the technical field of data communication. According to the method, a source MAC chip uploads a message to a message buffer area corresponding to a matched shared BD ring through a cooperation mechanism of the shared BD ring and the message buffer area, so that a processor is prevented from directly participating in a forwarding decision of the message. And the processor only needs to obtain the sending information from the shared BD ring and notify the target MAC chip, so that the target MAC chip sequentially takes out the messages from the message buffer area corresponding to the shared BD ring according to the sending information and sends the messages. Tasks such as message receiving, table lookup forwarding and sending control originally completed by the processor are converted into simple read-write operation of reading the shared BD ring and writing the shared BD ring into the register, the participation degree of the processor in the message forwarding process is remarkably reduced, and the overall forwarding performance is improved.

The application discloses a message forwarding method and device, a first device, a second device and a storage medium. The method comprises the following steps: a first device receives a first message, the first message contains a first segment identifier (SID), the first SID is associated with the first device, the first SID contains first information, and the first information contains related information of a time division multiplexing (TDM) cross function; a TDM channel corresponding to the first message is determined by using the first SID and second information, the second information represents an association relationship between a SID and a TDM channel; and the first message is forwarded through the TDM channel corresponding to the first message.

The invention relates to the technical field of communication interaction, in particular to an audio transmission method, playing equipment, true wireless playing equipment and a system. The audio transmission method comprises the following steps: receiving a retransmission audio packet sent by sound source equipment; determining an audio packet forwarding direction identified by the current forwarding state flag; if the retransmission audio packet is forwarded to the second playing device, in response to the detection failure of the Bluetooth synchronous code corresponding to the retransmission audio packet or the reception of the audio packet, sending a second historical audio packet to the second playing device based on the second audio packet set in the current sub-event time window; and if the retransmission audio packet is forwarded to the first playing device, in response to the detection failure of the Bluetooth synchronous code corresponding to the retransmission audio packet or the reception of the audio packet, trying to receive a first historical audio packet sent by the second playing device based on the first audio packet set in the current sub-event time window. The audio packet receiving capability of the playing device is enhanced, the transmission frequency between the devices is reduced, and the power consumption is saved.

The embodiment of the invention provides a data packet transmission method, system, equipment and device and a storage medium. The data packet forwarding equipment supports a CXL protocol, and the data packet transmission method applied to the data packet forwarding equipment comprises the following steps: in response to receiving a data packet from sending equipment, storing the data packet in a cache corresponding to the sending equipment, the cache being pre-allocated to the sending equipment; and in response to a received data packet reading request from receiving equipment, triggering the receiving equipment to read the data packet from the cache in a memory access manner. Visibly, by adopting the technical scheme, the data packet is transmitted on the basis of read-write operation of the sending device and the receiving device on the cache based on a CXL protocol shared memory mode, an interface between devices does not need to be called depending on a driving program, and the data packet does not need to be packaged into a network data packet format for transmission, so that the overhead of a communication protocol can be reduced, and the communication efficiency is improved. Transmission delay is reduced, and transmission performance is improved.

The embodiment of the invention provides a message forwarding method and device and electronic equipment. In the embodiment of the invention, after network equipment receives a message, message historical forwarding state information can be analyzed from the message, and the message historical forwarding state information comprises message forwarding state information of at least one intermediate device passed by the message before the message is forwarded to the equipment; and based on the message historical forwarding state information and current forwarding information currently used for forwarding the message by the device, determining a target forwarding strategy used for forwarding the message to forward the message. According to the embodiment of the invention, a stateful forwarding mechanism which deeply fuses the message forwarding state information of the intermediate equipment through which the message passes and the current forwarding information of the equipment with the forwarding strategy can dynamically determine the forwarding path of the message, so that the existing situations such as congestion and packet loss caused by the fixed forwarding path are avoided as much as possible, and the forwarding efficiency of the message is improved. And the message forwarding performance of the network equipment is effectively improved.

A communication method, device, equipment, program product and storage medium are disclosed, and relate to the technical field of protocol stacks. After receiving a first packet sent by a source node in a case where the source node accesses a destination node, a network device forwards a second packet sent by the source node to a destination server where the destination node is located using a first tunnel and / or a second tunnel in a case where the source node and / or the destination node is a virtual device in a resource pool. In this way, the network device uses tunnel technology to achieve isolation of an Underlay network and protocol stacks, and the Underlay network only needs to be responsible for basic packet forwarding and does not need to perceive which protocol stack packet is encapsulated in the tunnel, thereby achieving mutual communication of resource pools of different protocol stacks.

This invention provides a method for detecting DDoS attacks, a packet forwarding method, an electronic device, and a storage medium, belonging to the field of computer communication technology. The DDoS attack detection method includes: acquiring any packet group in a DDoS attack; calculating a first packet entropy to characterize the local disorder level of the packet group based on the individual bit probabilities of each packet in the packet group, where the individual bit probabilities of each packet refer to the probability of each packet's individual bit appearing relative to its total number of bits; calculating a second packet entropy to characterize the overall disorder level of the packet group based on the cumulative bit probabilities of all packets in the packet group; and determining the legitimacy of the DDoS attack based on the first and second packet entropies. This invention eliminates the need for packet-by-packet parsing in DDoS attack detection, effectively improving the timeliness and accuracy of DDoS attack detection and enhancing DDoS attack defense performance.

The invention provides a network device which comprises a storage device and a network processor. The storage device stores an address and port mapping information table, the address and port mapping information table comprises a plurality of table entries for storing a plurality of second internet protocol headers, and each second internet protocol header conforms to a second internet protocol version. The network processor is configured to receive a first data packet having a first Internet Protocol header conforming to a first Internet Protocol version different from the second Internet Protocol version, and to generate and forward a second data packet. And the second data packet includes a second Internet Protocol header captured from the storage device and at least a portion of the first data packet.

This invention provides a packet forwarding method, apparatus, and device. The method includes: upon receiving a mirror image of a request packet sent by a first device to a second device, and determining that the mirror image packet is a suspicious packet, sending configuration information to the network forwarding device. The configuration information instructs the network forwarding device to configure static ARP, the static ARP including the IP address of the first device and the MAC address of the access device. The static ARP is used, after the network forwarding device receives a response packet sent by the second device, to send the response packet to the access device based on the IP address of the first device and the MAC address of the access device. If the suspicious packet is determined to be an illegal packet, the sending of the response packet to the first device through the network forwarding device is prohibited. This invention can promptly perform packet forwarding blocking operations, improving network security.

An optical bypass system for interconnecting a plurality of data centers with a regional hub networking node includes an optical switching layer configured to receive a plurality of channels from each of the plurality of data centers, and to switch the plurality of channels from each of the plurality of data centers (1) between one another for optical bypass and (2) to an electrical switching fabric at the regional hub networking node; and a controller configured to (1) configure wavelengths on corresponding optical transceivers for each of the plurality of channels from each of the plurality of data centers, (2) configure wavelength switching in the optical switching layer, and (3) determine packet forwarding between the corresponding optical transceivers.

The invention provides a message forwarding method and device and network equipment, and relates to the technical field of communication. The method is applied to network equipment, the network equipment comprises a flow table, and the method comprises the following steps: performing feature extraction on a received to-be-forwarded message to obtain a message feature; and querying a flow table based on the message features to obtain a data flow and exit information corresponding to the to-be-forwarded message, and meanwhile, performing routing based on the message features to determine candidate exits. And determining a target exit based on the candidate exit, the data stream corresponding to the to-be-forwarded message and the exit information, so as to forward the to-be-forwarded message through the target exit. According to the message forwarding method and the message forwarding device, the message forwarding delay is effectively reduced and the message forwarding efficiency is improved by adopting a flow table look-up and routing parallel processing mechanism.

The invention discloses a fast rerouting method based on a bidirectional potential energy field. The method comprises the following steps: constructing a forward potential energy field and a reverse potential energy field based on a destination node in a network; generating a forwarding rule of a data packet according to the forward potential energy field and the reverse potential energy field; and in a data packet forwarding process, switching between the forward potential energy field and the reverse potential energy field according to a link state. According to the invention, efficient, stable and robust fault recovery can be realized in a complex network environment.