New H3C Technologies Patente

According to a method for decompression backup, a compress node compresses and forwards packets to a master decompression node for decompression; and, in response to receiving a notification indicating that a decompression capability of the master decompression node is abnormal, the compress node switches packets to be decompressed by the master decompression node to a backup decompression node with normal decompression capability for decompression to achieve backup protection of the decompression nodes, thereby avoiding problems caused by decompression ability being abnormal, such as discarding data.

The present disclosure provides a network communication method and a branch apparatus. The method is applied to a branch apparatus which communicates with a central apparatus through a public network. The method includes: receiving a public IP address sent by the central apparatus after determining that a network address translation, NAT, gateway exists between the branch apparatus and the public network, wherein the public IP address is an internet protocol, IP, address of a target interface included in a target NAT gateway; sending a probe request packet to the target interface, the probe request packet including a destination IP address, the destination IP address being different from the public IP address and in the same network segment as the public IP address; obtaining the number of network apparatuses in a forwarding path for forwarding the probe request packet based on a probe result; sending a NAT keepalive packet to the central apparatus based on a preset period, the NAT keepalive packet including a first time to live, TTL, the first TTL being a sum of the number and a first value. Implementing the method provided in the present disclosure may avoid the impact on traffic forwarding of the central apparatus caused by the NAT keepalive packets.

The present disclosure provides a packet transmission method, apparatus and device. According to the method, data packets to be sent to a wireless terminal are obtained. If a load of each wireless link is greater than a load threshold and the data packets are high-priority data packets, it is determined whether a target wireless link has been selected for the wireless terminal, if not, a target wireless link is selected from all wireless links corresponding to the wireless terminal, and the data packets and a migration message are sent to an AP corresponding to the target wireless link, so that the AP migrates, based on the migration message, low-priority data packets to other wireless links except the target wireless link for sending, and sends the data packets to the wireless terminal through the target wireless link; if yes, the data packets are sent to an AP corresponding to the target wireless link, so that the AP sends the data packets to the wireless terminal through the target wireless link. According to the technical scheme of the present disclosure, transmission interruption of high-priority data packets may be avoided, and user experience is improved.

A congestion control method and apparatus, relating to the technical field of communication and applied to a sending-end adaptor in an AI network. The method includes: determining an initial sending window corresponding to each data flow according to a credit assigned to the data flow by a receiving-end adaptor; sending data packets to the receiving-end adaptor using a packet spray manner according to the initial sending window corresponding to each data flow; detecting current congestion information of the AI network; in response to determining that the current congestion information indicates that the AI network is in a first congestion state, adjusting the initial sending window corresponding to each data flow according to the current congestion information to obtain a secondary refreshed sending window corresponding to the data flow, wherein a parameter used to characterize the first congestion state is greater than a first parameter threshold and less than a second parameter threshold; sending the data packets to the receiving-end adaptor using the packet spray manner according to the secondary refreshed sending window corresponding to each data flow. The solution can improve the bandwidth performance of the AI network.

This application provides a packet forwarding method and apparatus. In the embodiment, a headend releases respectively to other nodes on the current path SRv6 TE Policy source path routing and a source path control probe packet, to trigger other nodes on the current path to generate a source path control table. The source path control table contains routing forwarding information that nodes on the path of the existing SRv6 TE Policy conventionally does not care about, in order to use this source path control table to mitigate risks caused by nodes on the path of the existing SRv6 TE Policy not caring about the above routing forwarding information and improve the security of the SRv6 network.

The present application provides methods and apparatuses for implementing clock extension based on an integrated circuit bus IIC. The present application additionally provides a clock extension indication signal line between an IIC master device and a control device in a communication control system. The IIC master device sends a first notification to the control device through the clock extension indication signal line to enable clock extension, so that the control device maintains a pin of a slave device SCL in a low-level state, to suspend data transmission. In the absence of a second notification sent by the IIC master device to the control device through the clock extension indication signal line to cancel clock extension, even if the specified period of the SCL clock cycle ends, the slave device SCL pin connected to the slave device SCL will not be controlled to be in a high impedance state as it would be in the conventional IIC data transmission mechanism. Instead, the SCL pin will be maintained at a low level until the second notification is received, breaking the limitation of the existing data transmission mechanism and implementing triggering of clock extension mechanism by the IIC master device.

Provided are a method and a device for real-time clock synchronization, the method including: creating a configuration task, a synchronization packet task, a follow-up packet task, a delay request packet task, a delay response packet task, and a timestamp update task with the same priority and same time slice; running each task based on the time slice and in a round robin mode; generating a hardware interrupt by timing based on a clock synchronization interval; responding to a hardware interrupt of the timer hardware interrupt, identify a master port for the synchronization packet task, to record the master port with a synchronization identifier in a synchronization port table; detect a synchronization packet sending event and a delay request packet receiving event on the master port, and record synchronization packet timestamp information for updating the synchronization timestamp table and delay request packet timestamp information for updating the delay request timestamp table.

The present disclosure provides a packet transmission method and apparatus and an electronic device. The method includes: determining whether communication between an associated Access Point (AP) of an AP and a wireless terminal is abnormal; in response to a determination that the communication between the associated AP and the wireless terminal is abnormal, enabling a backup redundancy service, where a service identifier of the backup redundancy service is consistent with a service identifier of the associated AP; by the backup redundancy service, monitoring a first data packet sent by the wireless terminal to the associated AP and sending the first data packet to an Access Controller (AC); by the backup redundancy service, receiving a response data packet returned by the AC for the first data packet and sending the response data packet to the wireless terminal. In the technical solutions provided by the present disclosure, the network interruption of the wireless terminal and the transmission process interruption of the data packet can both be avoided, thereby maintaining the service uninterrupted.

Examples of the present disclosure provide a network device and a data processing method, which relates to the field of communication technology. The network device includes a FlexE interface board, a backplane and at least one forwarding board; wherein a first VLAN configuration unit is provided on the FlexE interface board, and the first VLAN configuration unit is connected to the backplane through a serializer/deserializer; a mapping relationship between FlexE service ports and FlexE channels is stored in the first VLAN configuration unit; a second VLAN configuration unit is provided on the at least one forwarding board, and the second VLAN configuration unit is connected to the backplane through a serializer/deserializer; the mapping relationship between the FlexE service ports and the FlexE channels is stored in the second VLAN configuration unit; the serializer/deserializer transmits a data frame by using an Ethernet backplane protocol. This solution can reduce a difficulty of chip selection and hardware cost of the network device and improve a scalability of the network device.

A method and an apparatus for entry synchronization, a network device and a storage medium are provided, which relate to the technical field of communication, and are applied to a first forwarding node, wherein first forwarding node is in an AI network and connected to a host via a first port. The method includes: receiving a first packet sent by the host; learning a first global scheduling entry corresponding to the host according to the first packet, wherein the first global scheduling entry includes a system port identity of the first port, and the system port identity includes a device identity and a port identity; sending a second packet to a second forwarding node, wherein the second packet comprises the first global scheduling entry, to cause the second forwarding node to learn a second global scheduling entry which is the same as the first global scheduling entry. This solution can reduce the influence of entry synchronization on the control plane and improve the performance and extensibility of the control surface.

The present disclosure provides packet forwarding methods, apparatuses, and electronic devices. In this example, each node in the ring network enables a ring network protection function for a local ring network interface, so that when a node determines that an out-going interface of a route to a destination node is the local ring network interface enabled with the ring network protection function, the route is regarded as a primary route from the node to the destination node, and determines a backup route of the primary route (an out-going interface of the backup route is a ring network interface enabled with the ring network protection function at the node). Then the packet may be forwarded based on the primary and backup routes. For example, after receiving the packet, if an in-coming interface receiving the packet is the same as a primary out-going interface of the primary route, the packet may be forwarded directly through a backup out-going interface of the backup route. This avoids a packet forwarding loop caused by a node on the ring network receiving a packet before the route has successfully adjusted when anomalies occur on the ring network, such as a node failure or a link failure between any two nodes.

The present disclosure a packet transmission method, apparatus and device. The method includes: sending radio frequency information of a neighbor AP of the first AP to the first AP such that the first AP broadcasts a beacon packet carrying the radio frequency information of the first AP and the radio frequency information of the neighbor AP; wherein the beacon packet is configured to indicate a wireless terminal for accessing the first AP later to establish a first wireless link with the first AP based on the radio frequency information of the first AP, and establish a second wireless link with the neighbor AP based on the radio frequency information of the neighbor AP; receiving a first data packet from the first AP and a second data packet from the neighbor AP; and sending the first data packet or the second data packet. According to the present disclosure, interruption of transmission process of the data packets is avoided, thereby improving the user experience. For the reconnection process of the roam, in order to ensure roam continuity, the wireless terminal has no perception for the reconnection process, maintaining service uninterrupted.

The examples of the present disclosure provide a communication method, an electronic device, and an apparatus, which are applied to a first device in a network, the first device being an electronic device supporting SRv6. The aforementioned method includes: obtaining an SRv6 locator of the first device; and sending a first LLDP packet to a second device, wherein the first LLDP packet includes the SRv6 locator of the first device, so that the second device generates a locator route reaching the first device based on the SRv6 locator of the first device. Applying the examples of the present disclosure enables SRv6 information advertisement via a simple routing protocol.

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Disclosed in the present disclosure are a packet forwarding method, equipment, a network apparatus, and a storage medium applied in the network apparatus in an access network. The method comprises: acquiring a first packet from a first terminal, wherein the first terminal is a wired terminal or a wireless terminal; determining a target network slice matching both the first packet and the first terminal; performing QoS forwarding of the first packet based on a forwarding policy corresponding to the target network slice. The present disclosure may solve the problem of independent forwarding policies in wired and wireless networks, simplify management of the forwarding policies, and enhance traffic control effects.

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The present disclosure provides a packet processing method and apparatus, a resource management method and apparatus, and a device. The packet processing method includes: determining identity information of the member device in the cloud cluster switch; in response to determining that the identity information indicates that the member device is a first NCP and a first protocol packet transmitted by a server is received through a first port, adding local port information of the first port to the first protocol packet to obtain a second protocol packet, and transmitting the second protocol packet to an NCC; and in response to determining that the identity information indicates that the member device is an NCC and the second protocol packet is received, determining global port information of the first port based on the local port information of the first port; establishing a first forwarding entry, where the first forwarding entry includes address information of the server in the first protocol packet and the global port information of the first port; transmitting the first forwarding entry to the first NCP, such that the first NCP, upon receiving a data packet with a destination address being the address information of the server, queries the first forwarding entry based on the destination address to obtain the global port information of the first port, and transmits the data packet through the first port. Through the solution of the present disclosure, forwarding latency is reduced, traffic loss is minimized, and service quality is improved.

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