7 results about "Spanning Tree Protocol" patented technology

To achieve redundant data transmission in a communication network, at least a first (201) and a second virtual local area network (202), VLAN, are each configured on communication devices (101-104, 112-113, 122-123, 132-133, 142-144) of the communication network that forward datagrams (300). Different spanning trees are determined for each of the first (201) and second VLAN (202) within the communication network by applying a spanning tree protocol, said spanning trees being used to specify, for each of the first and second VLAN, active paths for forwarding datagrams via the forwarding communication devices. At least selected datagrams (300) to be transmitted are duplicated by a transmitter-side communication device (111) and transmitted both via the first VLAN (201) and via the second VLAN (202). Received datagrams (300) associated with the VLANs (201, 202) are each checked for identity with an already received datagram by receiver-side communication devices (121, 131, 141) and discarded if an already received identical datagram is present.

The application provides a method, device and medium for quickly converging a spanning tree protocol in an MLAG environment, and belongs to the technical field of network communication. In the method, each network device corresponding to an MLAG link runs a spanning tree protocol (STP), and a master device in the MLAG link acquires a bridge protocol data unit (BPDU) message from a backup device at an opposite end of the MLAG link and / or sends a BPDU message from each MLAG member interface to a corresponding backup device, so as to synchronize the BPDU messages of the MLAG member interfaces of each network device of the MLAG link. The synchronization at least includes message analysis and STP calculation. In the case that there is at least one MLAG member interface fault in the master device, a fault signal is generated. According to the fault signal, an MLAG member interface corresponding to the fault MLAG member interface in the backup device is determined as a switchable MLAG member interface, so as to execute BPDU message packet processing corresponding to the fault MLAG member interface through the switchable MLAG member interface.

The invention provides a spanning tree protocol configuration automatic checking method and device, a storage medium and a system, and the method comprises the steps: receiving and responding to a gateway down-moving operation instruction, and migrating the gateway function configuration of convergence layer equipment to access layer equipment; acquiring equipment information of an access layer, and generating a spanning tree protocol configuration information table according to the equipment information; and determining a difference configuration item according to the spanning tree protocol configuration information table and a preset spanning tree protocol configuration information table to complete verification of spanning tree protocol configuration, the difference configuration item being a configuration item in which the spanning tree protocol configuration information table is not consistent with the preset spanning tree protocol configuration information table. According to the method and the device, the problems that a data center gateway is generally deployed on convergence layer equipment, so that the coverage range of a single two-layer network segment is relatively large, and once a two-layer loop fault occurs, the fault domain diffusion range is wide, so that the operation risk is high are solved.

The invention provides a vehicle-mounted information processing method and a vehicle-mounted information processing device, and the method comprises the steps: obtaining the connection state and neighborhood relation information between all devices in a vehicle-mounted network; determining a connection relationship between the devices based on the connection state and the neighbor relationship information; processing the connection relationship by using a fast spanning tree protocol, and determining a trunk path; according to the trunk path, mapping to obtain a topological data model; and performing difference comparison on the topological data model and an existing topological model stored locally, and adaptively selecting a configuration issuing mode to update network configuration according to a comparison result and the protocol support capability of target equipment. According to the invention, the adaptive configuration updating of the vehicle-mounted network topology is realized, and the maintainability and flexibility of the vehicle-mounted network are improved.

The application provides a method, controller and system for automatic configuration of a DPU-based spanning tree protocol in a K8s cluster. The method comprises: real-time monitoring of whether a spanning tree protocol configuration instance in the K8s cluster has configuration data changes, and if so, updating a bridge device table of a virtual switch database according to the spanning tree protocol configuration instance, so that the virtual switch in the DPU receives updated spanning tree protocol configuration data and correspondingly configures or starts a corresponding spanning tree protocol STP and / or a rapid spanning tree protocol RSTP; real-time monitoring of whether the virtual switch configures or starts the STP and / or the RSTP, and if so, updating a state of a custom resource definition unit for the spanning tree protocol, so that a user knows the current spanning tree protocol setting state of the virtual switch. The application can realize automatic configuration of the spanning tree protocol in the K8s cluster, and can effectively improve the real-time performance and reliability of the automatic configuration, thereby effectively improving the efficiency and quality of network operation and maintenance.

This invention introduces an adaptive hybrid network topology including a ring, star, and tree sub-topology interconnected through a shared backbone (100), a shared backbone (100) comprising a hierarchical structure with multiple levels of aggregation, characterized in that said shared backbone are installed network security infrastructure (101) comprising firewalls (104), intrusion detection (1041), Virtual Private Network (1011) and Point-to-Point Protocol over Ethernet (1012), a connection controller module (110) for managing network connections comprising a cross connection module (111), characterized in that said cross connection module is a plurality of a single dual core cable (114) connecting the plurality of intermediate distribution frames (112), a plurality of intermediate distribution frames (112), characterized in that said distribution frames attached are plurality of devices (121) and plurality of virtual local area network (1122) attached in internet service provider, and a failover configuration module (113) utilizing Spanning Tree Protocol (1131) for redundancy and path selection. Disclosed further are the methods for path selection and managing network topology in an adaptive hybrid network.