9 results about "Broadcast domain" patented technology

The invention relates to a hierarchical broadcasting method and device based on statistical adaptive threshold and scale constraint, and the method comprises the steps: calculating a local delay threshold and a domain scale upper limit of each network node based on the statistical analysis of local network delay; forming a plurality of target broadcast domains by adopting a bidirectional delay verification mechanism based on a local delay threshold and a domain scale upper limit; and on the basis of the formed target broadcast domain, intra-domain message propagation and cross-domain message forwarding are respectively carried out to realize layered broadcast. Through the method and the device, statistical analysis of local network delay can be performed, and the local delay threshold and the domain scale constraint of each network node are dynamically calculated, so that a self-organizing domain is formed on the basis of the local delay threshold and the domain scale constraint to perform layered broadcast; self-adaptive layered broadcasting capable of adapting to network topology dynamic change and node delay distribution difference is realized, and the problem of lack of a self-adaptive layered broadcasting mechanism is solved.

This specification provides a method, apparatus, electronic device, and medium for handling stack splits. The method includes: upon detecting a stack split, adjusting the operating mode of a VRRP group from silent mode to normal mode, and propagating a first VRRP announcement message in the broadcast domain corresponding to the VRRP group. The VRRP group includes a first network device and a second network device. The first VRRP announcement message includes a first reference value and the real MAC address of the first network device. The method also includes receiving a second VRRP announcement message sent by the second network device. The second VRRP announcement message includes a second reference value and the real MAC address of the second network device. If the first reference value is greater than the second reference value, the user processes service packets as the master device. If the first reference value is less than the second reference value, the user silences the service port.

A network device can be configured to receive a packet to be replicated in accordance with a virtual local area network (VLAN) replication set having a number of members. The network device can further be configured to identify a first sub-broadcast or layer 2 (L2) domain for the packet and to identify a first sub-broadcast domain replication set corresponding to the first sub-broadcast domain. The first sub-broadcast domain replication set can have a number of members less than the number of members in the VLAN replication set. The network device can further be configured to identify a second sub-broadcast domain replication set for the packet, to replicate the packet a number of times for at least a portion of the members of the first sub-broadcast domain replication set, and to replicate a loopback packet a number of times for members of the second sub-broadcast domain replication set.

The invention provides an Ethernet redundancy device independent of a switch multicast function. The device comprises a broadcast module and a communication module, the broadcast module is used for periodically sending and receiving broadcast messages through each physical network port in each terminal device, and constructing an address mapping dictionary corresponding to each terminal device; the communication module is used for determining to-be-sent data, a source network address corresponding to the to-be-sent data and a target network address corresponding to the to-be-sent data; determining a source physical address of each source network port corresponding to the source network address and a target physical address of each target network port corresponding to the target network address according to an address mapping dictionary; determining a target sending message according to each source physical address and each target physical address; and sending the target sending message to the corresponding target network port. According to the device provided by the invention, in a single broadcast domain, without relying on a multicast function of a switch, on the premise of not sending a main communication message through broadcast, the message can be repeatedly sent only by using the terminal equipment.

The forwarding of BUM traffic in routers and / or switches (e.g., in environments such as interconnected L2 broadcast domains, such as DCs and DCIs with a VXLAN overlay) is improved so that BUM traffic is properly forward, but with reduced (e.g., eliminated) unnecessary duplication and / or flooding.

The invention provides a resource access method and device, electronic equipment and a storage medium, and the method comprises the steps: detecting the change of a real network address of resource equipment in real time based on a response message of an address resolution protocol (ARP) in a broadcast domain where the resource equipment is located and a physical address of the resource equipment; under the condition that the change of the real network address of the resource equipment is detected, based on the changed real network address, updating a mapping relation between the virtual network address and the real network address of the resource equipment; and performing resource access on the resource equipment based on the updated mapping relation. According to the method and device, the electronic equipment and the storage medium provided by the invention, the mapping relation can be correspondingly updated along with the change of the real network address, and resource access is performed on the resource equipment based on the updated mapping relation, so that the resource access can support the change of the real network address of the resource equipment, and the resource access efficiency is improved. Therefore, the reliability and the stability of resource access are ensured.

The invention belongs to the field of computer networks, and particularly relates to an Internet of Things equipment network planning method based on building space topology, which comprises the following steps: acquiring building space structure information and equipment deployment plan information, analyzing the total number of equipment and the total number of buildings to determine a two-layer or three-layer network hierarchical architecture, and generating a network topology structure; analyzing equipment density based on the three-dimensional equipment matrix, and automatically dividing equipment into a plurality of VLANs in combination with a preset broadcast domain threshold according to spatial position information and / or equipment types; based on the building number, the floor number and the room number in the spatial topology tree, generating an IP address with spatial semantics for each device; based on the number of the devices, the bandwidth requirements and the network topology structure, the specification and the number of the switches are determined; and generating a complete network deployment scheme comprising a network topological graph, a VLAN configuration table, an IP address allocation table, a bill of materials and a switch configuration script. According to the scheme, automatic planning of the network is realized.

The invention discloses a cross-protocol unified interactive screen projection method and a cross-protocol unified interactive screen projection system for a smart television. The method comprises the following steps: integrating an AirPlay protocol, a DLAN protocol and a Miracast protocol into controlled equipment; configuring broadcast domains corresponding to the AirPlay protocol, the DLAN protocol and the Miracast protocol respectively, and enabling the AirPlay protocol, the DLAN protocol and the Miracast protocol to carry out session and data transmission through different broadcast domains respectively; creating a controlled device name, and selecting a corresponding broadcast threshold to publish the controlled device name according to the protocol category; a corresponding data transmission channel is established according to the screen projection protocol selected by the main control equipment; a plurality of screen projection protocols can be subjected to screen projection on one controlled device, a screen projection system is reconstructed, fusion of different protocols is supported, and heterogeneous screen projection multi-path fusion is supported; the defects that the screen projection function of the controlled equipment is low in later maintenance efficiency, complex and high in cost are overcome, the universality and the universality of screen projection of the controlled equipment are improved, the screen projection function of the controlled equipment is efficiently and simply maintained at low cost in the later period, and the usability is improved.

A system determines a replication threshold for a device operating as a tunnel endpoint in an overlay network. The replication threshold indicates a capacity of replication resources of the device. The system obtains a current replication count for the device corresponding to a virtual extensible local area network (VXLAN). The system selects a replication type for a broadcast domain specific to the device and the VXLAN based on the replication threshold and the current replication count. The replication type indicates one of: a first type associated with an ingress replication broadcast domain comprising unicast tunnels; a second type associated with an underlay multicast broadcast domain comprising multicast tunnels; and a third type associated with a hybrid broadcast domain comprising a combination of the first type and the second type. The system creates the broadcast domain specific to the device and the VXLAN based on the selected replication type.