26 results about "Spanning Tree Protocol" patented technology

The invention provides a method, a controller and a system for automatically configuring a spanning tree protocol in a K8s cluster based on a DPU, and the method comprises the steps: monitoring whether the configuration data of a spanning tree protocol configuration instance in the K8s cluster is changed in real time, if yes, updating a bridging device table of a virtual switch database according to the spanning tree protocol configuration instance, and if not, updating the bridging device table of the virtual switch database; sending the updated spanning tree protocol configuration data to a virtual switch in the DPU so that the virtual switch in the DPU receives the 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; and monitoring whether the virtual switch configures or starts the STP and / or the RSTP in real time, and if yes, updating the state of the custom resource definition unit for the spanning tree protocol, so that a user can know the current spanning tree protocol setting state of the virtual switch. According to the invention, the automatic configuration of the spanning tree protocol in the K8s cluster can be realized, the real-time performance and reliability of the automatic configuration can be effectively improved, and the efficiency and quality of network operation and maintenance can be effectively improved.

A network device of a virtual switch, which includes a second network device and operates on a unified control plane, is provided. During operation, the network device maintains a link between its first port and a second port of the second network device. Here, the first link can be distinct from a second link used for exchanging data traffic of the virtual switch. The network device operates a spanning tree protocol to place the first and second ports in respective port states, which include a forwarding state and a blocked state. If the second link becomes unavailable, the network device determines that the virtual switch has split into a first segment comprising the network device and a second segment comprising the second network device. If the first port state is in the blocked state, the network device suspends communication via a respective port of the first segment.

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 discloses a spanning tree protocol convergence method, spanning tree protocol convergence equipment and a medium, and the method comprises the steps: virtualizing a stacking system into a single virtual switch, creating virtual ports of all ports in the stacking system on main equipment, and when root bridge election is carried out, carrying out root bridge election on the virtual ports; after the standby device and the slave device respectively forward a first BPDU message of the opposite terminal external device to the master device, a root bridge device is determined according to a root bridge calculation result of the master device and a root bridge calculation result of the external device, and when the master device carries out port role election on a virtual port in a second state according to a second BPDU message, the virtual port in the second state is subjected to port role election. The port role and the port state are obtained, the port state of the single virtual port is forwarded to the corresponding standby device or slave device through the master device, and when the network topology changes, port role election is conducted on the network topology again through the master device. The stacking system is virtualized into a switch, and the BPDU messages of the slave device and the standby device are transferred to the master device to be processed, so that the convergence speed of the spanning tree protocol is increased.

The application discloses a kind of MLAG port path cost update method, system, equipment and medium, the method specifically includes: second MLAG device receives the synchronization message from first MLAG device, parses synchronization message to obtain the path cost of first MLAG device root port corresponding and MLAG ID;Based on the transmission rate of each MLAG port of second MLAG device, the path cost value of each MLAG port of second MLAG device is calculated;The path cost value of first MLAG device root port is compared with the path cost value of second MLAG device root port, to update the path cost value corresponding to second MLAG device root port.Compared with prior art, the application can adapt to MLAG port rate according to MLAG protocol state and spanning tree root port state, participate in spanning tree protocol calculation, and the MLAG port of MLAG device uses the same path cost value to participate in spanning tree protocol calculation, improve the stability of spanning tree protocol convergence.

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.

This application provides an energy storage system, a physical position identification method, and a photovoltaic power generation system, and relates to the field of energy storage system technologies. The energy storage system includes at least one energy storage container, and the energy storage container includes a battery management system and m battery clusters. Third controllers corresponding to n battery packs in each battery cluster determine a first third controller connected in series, and set a physical position of the first third controller to a first physical position. An ith third controller in the third controllers corresponding to the n battery packs in each battery cluster determines a physical position of the ith third controller based on a position signal sent by an (i-1)th third controller, where i=2, 3, ..., or n. A first controller determines physical positions of remaining second controllers according to a rapid spanning tree protocol (RSTP) and a known physical position of a second controller. This solution is used, so that a misoperation is avoided, and security and reliability of the battery management system are improved.

In a mesh communication network, bridge devices use two parallel configurations: a first logical network configuration to route data packets point-to-point, using dynamic routing between the bridge devices; and a second logical network configuration to route data packets broadcast, using a spanning tree that eliminates potential loops. Upon receiving a subscription request (410) from a station device, each bridge device is instructed (414) to initiate a source search for the multicast data stream. When the multicast data stream is received via an input port of a bridge device, the bridge device is configured to switch the multicast data stream from the input port to an output port toward the station device, according to the first configuration.

The invention discloses an MLAG protocol rapid negotiation method, system and device in a spanning tree environment and a readable storage medium. The method comprises the following steps: judging whether a peer-link port of a sending end is in a blocking state of a spanning tree protocol or not; if yes, packaging a BPDU message header on the protocol message to be sent, or replacing the target MAC of the protocol message to be sent with the preset BPDU MAC; and adding a message identifier in the processed protocol message to be sent, and sending the processed protocol message to be sent to which the message identifier is added from a peer-link port of a sending end. Compared with the prior art, the MLAG protocol negotiation can be accelerated in the spanning tree scene. The problem that messages such as the MLAG protocol are lost due to the fact that the spanning tree protocol state of the peer-link port on the connected MLAG equipment is not synchronously set to be the Forward forwarding state, namely, the peer-link port is detected to be in the forwarding state, but the associated peer-link port on the opposite side is still in the blocked state is effectively solved. And the system function realization stability is further maintained.

Starting a spanning tree protocol (STP) process in a network device excludes performing a root bridge election sequence. The network device receives and learns the STP roles and STP states of its ports based on the received bridge protocol data units (BPDUs) during a quiescent period of time subsequent to starting STP processing. Port role and port state learning occur absent the generation and transmission of BPDUs during the quiescent period of time. Subsequent to the end of the quiescent period, the network device commences generating and transmitting BPDUs.

An energy storage system includes at least one energy storage container, and the energy storage container includes a battery management system and m battery clusters. According to a rapid spanning tree protocol (RSTP) and a known physical position of a second controller, a first controller determines physical positions of remaining second controllers. A plurality of third controllers corresponding to n battery packs in each battery cluster determine a first third controller and set a physical position of the first third controller as a first physical position. An ith third controller in the plurality of third controllers determines a physical position of the ith third controller based on a position signal sent by an (i−1)th third controller, where i=2, 3, . . . , or n.

A network device of a virtual switch is deployed, containing a second network device and operating at a unified control plane. During operation, the network device maintains a connection between its first port and a second port of the second network device. The first connection can be different from a second connection used for exchanging traffic within the virtual switch. The network device uses a spanning tree protocol to put the first and second ports into their respective port states, including a forward state and a blocked state. If the second connection becomes unavailable, the network device determines that the virtual switch has split into a first segment containing the network device and a second segment containing the second network device.If the first port is in a blocked state, the network device interrupts communication via a corresponding port of the first segment.

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.

Rapid failure detection and recovery in wireless communication networks is needed in order to meet, among other things, carrier class Ethernet transport channel standards. Thus, resilient wireless packet communications is provided using a hardware-assisted rapid transport channel failure detection algorithm and a Gigabit Ethernet data access card with an engine configured accordingly. In networks with various topologies, this is provided in combination with their existing protocols, such as rapid spanning tree and link aggregation protocols, respectively.

The invention discloses a containerized spanning tree protocol-based switch control method and device, equipment and a storage medium, and relates to the technical field of computer networks, and the method comprises the steps: carrying out the packaging processing of spanning tree protocol processing logic through employing a containerized technology, and obtaining an independently running container; calling an activation program to activate spanning tree protocol processing logic in the container, and analyzing the network topology information and the link state information through the spanning tree protocol processing logic to obtain a network port control strategy; calling an adaptation function of an abstract interface of the switch, and converting the network port control strategy into a hardware control instruction; the hardware control instruction is sent to the control unit of the switch chip hardware to execute the hardware control instruction, port state setting and flow control are achieved, the spanning tree protocol is packaged and isolated through the containerization technology, efficient management and control of the switch are achieved, and meanwhile the stability and reliability of a network are improved.

An information processing apparatus, comprises: a communicator that connects to a network to transmit and receive communication data; a detector that detects a change in configuration of the network from the communication data received by the communicator; a determiner that determines, from the communication data, whether a Spanning Tree Protocol is applied to the network; and a display that displays a message to a user, based on a result of the determination made by the determiner.

The invention relates to a spanning tree construction method and device for a spanning tree protocol. The method comprises the following steps: a switch obtains a network bridge protocol data unit message; matching the network bridge protocol data unit message with an in-direction access control list of the switch; determining a source address and a destination address of the network bridge protocol data unit message according to a matching result; and when the source address and the destination address meet a preset rule, constructing and maintaining a spanning tree network topology structure through the network bridge protocol data unit message. According to the spanning tree construction method and device for the spanning tree protocol, the network bridge protocol data unit message which is sent by a local machine and received through a loop can be recognized, it is avoided that normal network bridge protocol data unit messages are received, and consequently spanning tree calculation errors are caused, and the network communication efficiency is improved.

The application discloses a spanning tree environment MLAG protocol fast negotiation method, system, device and readable storage medium. The method comprises the following steps: judging whether the sending end peer-link port is in the blocking state of the spanning tree protocol; if yes, adding an encapsulated BPDU message header to the to-be-sent protocol message, or replacing the destination MAC of the to-be-sent protocol message with the preset BPDU MAC; adding a message identifier to the processed to-be-sent protocol message, and sending the processed to-be-sent protocol message with the added message identifier from the sending end peer-link port. Compared with the prior art, the application can accelerate the MLAG protocol negotiation in the spanning tree scene. The application effectively prevents the problem that the spanning tree protocol state of the peer-link port on the connected MLAG device is not synchronized to the Forward forwarding state, that is, the peer-link port is detected as the forwarding state, but the associated peer-link port on the opposite side is still in the blocking state, resulting in the loss of MLAG protocol messages. The application further maintains the stability of the system function implementation.

The invention provides an energy storage system, a physical position identification method and a photovoltaic power generation system, and relates to the technical field of energy storage systems. The energy storage system comprises at least one energy storage container, and the energy storage container comprises a battery management system and m battery clusters. The third controllers corresponding to the n battery packs in each battery cluster determine a first third controller which is connected in series, and the physical position of the first third controller is set as a first physical position; the ith third controller in the third controllers corresponding to the n battery packs in each battery cluster determines the physical position of the ith third controller according to the position signal sent by the (i-1) th third controller, i = 2, 3,..., n; and the first controller determines the physical positions of the other second controllers by using a fast spanning tree protocol RSTP and the known physical position of one second controller. By means of the scheme, misoperation is avoided, and the safety and reliability of the battery management system are improved.

Embodiments of the present disclosure relate to efficient split management in virtual switches using spanning trees. A network device of a virtual switch is provided that includes a second network device and operates on a unified control plane. During operation, the network device maintains a link between its first port and a second port of a second network device. The first link is different from the second link for the virtual switch data traffic exchange. The network device runs a spanning tree protocol to place the first port and the second port in respective port states, the port states including a forwarding state and a blocked state. If the second link becomes unavailable, the network device determines that the virtual switch has split into a first segment including the network device and a second segment including a second network device. If the first port is in a blocked state, the network device suspends communication via the respective port of the first segment.

The present application discloses a spanning tree protocol convergence method, device, and medium. The method includes: virtualizing a stack system into a single virtual switch, creating virtual ports for all ports in the stack system on a master device, determining a root bridge device based on the master device's root bridge calculation result and the external device's root bridge calculation result after the backup device and the slave device respectively forward the first BPDU message of the opposite external device to the master device during root bridge election, obtaining a port role and a port status when the master device performs port role election for a virtual port in a second state based on a second BPDU message, forwarding the port status of a single virtual port to the corresponding backup device or slave device via the master device, and re-electing a port role for the network topology via the master device when the network topology changes. By virtualizing the stack system into a single switch and transferring the BPDU messages of the slave and backup devices to the master device for processing, the convergence speed of the spanning tree protocol is accelerated.

The invention discloses an MLAG port path overhead updating method, system and device and a medium, and the method specifically comprises the steps that a second MLAG device receives a synchronization message from a first MLAG device, and analyzes the synchronization message to obtain the path overhead corresponding to a root port of the first MLAG device and an MLAG ID; calculating a path overhead value of each MLAG port of the second MLAG device based on the transmission rate of each MLAG port of the second MLAG device; and comparing the path overhead value of the root port of the first MLAG device with the path overhead value of the root port of the second MLAG device to update the path overhead value corresponding to the root port of the second MLAG device. Compared with the prior art, the self-adaptive MLAG port rate can participate in spanning tree protocol calculation according to the MLAG protocol state and the spanning tree root port state, and the MLAG ports of the MLAG equipment use the same path overhead value to participate in spanning tree protocol calculation, so that the stability of spanning tree protocol convergence is improved.