4 results about "Internet Group Management Protocol" patented technology

The invention discloses a secure session method and system for a door lock and a mobile terminal, and the method comprises the steps: periodically collecting the Bluetooth signal strength of the mobile terminal in a coverage area of a unit door lock according to the unit door lock, dividing the signal strength into preset gears, generating a corresponding connection state, packaging the signal strength into an IGMP joining message, and sending the IGMP joining message to a specific multicast address; receiving an IGMP (Internet Group Management Protocol) joining message according to the door lock gateway, and registering or refreshing a unit door lock IP (Internet Protocol), a connection state and a local forwarding interface corresponding to a Bluetooth address in a Bluetooth address binding table maintained by the door lock gateway; constructing a multicast message according to a voice call request initiated by an indoor extension set, forwarding the multicast message through a router network, and binding the table by a rendezvous point RP according to the Bluetooth address; and according to the (S, G) multicast tree, reverse transmission is carried out along the established (S, G) table item path. By utilizing the embodiment of the invention, the quick, accurate and safe direct session establishment between the door lock and the mobile terminal can be realized, and the dependence of communication delay on an external network is reduced.

Techniques for communication in an L2 virtual network are described. In one example, the L2 virtual network includes a plurality of L2 compute instances hosted on a set of host machines and a plurality of L2 virtual network interfaces and an L2 virtual switch hosted on a set of network virtualization devices. The L2 virtual network interfaces emulate L2 ports of the L2 virtual network. IGMP configurations are distributed to the L2 virtual switches.

Systems and methods for prioritizing multicast streams in an Internet Group Management Protocol (IGMP) network are provided. According to one implementation, a method includes detecting a reboot scenario in a network environment; querying a plurality of hosts regarding membership in a plurality of IGMP multicast streams according to one or more predefined priority levels; receiving membership reports from the plurality of hosts, wherein the membership reports indicate whether each host wishes to join or leave one or more of the IGMP multicast streams; and requesting a server to restart the plurality of IGMP multicast streams according to the one or more predefined priority levels.

The invention discloses a multicast monitoring method and device under a cross-device aggregation group, equipment and a medium, and relates to the technical field of communication, and the method comprises the steps: receiving an Internet group management protocol (IGMP) report message or a leaving message of an aggregation link; updating a multicast member port list of the equipment according to the IGMP report message or the leaving message; and sending the IGMP report message or the leaving message to a cross-device aggregation group (MLAG) opposite-end device through an inter-device dedicated control channel, so that the MLAG opposite-end device synchronously updates a multicast member port list. According to the method, the cooperative work of the multicast monitoring protocol on two virtualized devices can be completed.