A data multicast implementation method, apparatus, and system are provided. In some embodiments, a transmission device receives a standby forwarding path establishment request, where the standby forwarding path establishment request includes a device identifier, has a destination address being an address of a multicast source device, and is used to request to establish a standby forwarding path between a multicast destination device identified by the device identifier and the multicast source device. In those embodiments, when determining, based on the device identifier in the standby forwarding path establishment request, that the transmission device is located on an active forwarding path between the multicast destination device and the multicast source device, the transmission device skips using the transmission device as a device on the standby forwarding path between the multicast destination device and the multicast source device, and skips forwarding the standby forwarding path establishment request.

The disclosure describes techniques for enhancements to the Multicast Source Discovery Protocol (MSDP) to reduce Source Active (SA) message loops in one or more multicast domains having overlapping MSDP mesh groups. In some examples, a method includes receiving, by a first MSDP speaker, from a second MSDP speaker, a SA message. The method also includes, when the second MSDP speaker is in a mesh group with the first MSDP speaker, determining whether the first MSDP speaker includes an active SA state corresponding to the SA message. Additionally, the method includes, when the first MSDP speaker does not include the active SA state corresponding to the SA message, accepting the SA message and forwarding the SA message to a third MSDP speaker that is not in the mesh group with the first MSDP speaker and the second MSDP speaker.

Methods, systems, and media for sending a message about a new video to a group of related users are provided. In accordance with some embodiments, the method comprises: determining that a new video associated with a content creator has been uploaded to a video sharing service; identifying a group of candidate users to receive a message indicating that the new video is available; identifying a sub-group of users within the group of candidate users based on relationships of users within the group to each other; determining a time to send the message; transmitting the message to the sub-group of users at the determined time; determining that the message has been selected by a user device associated with a user of the sub-group of users; and causing the new video to be presented in a user interface including a communication interface associated with the sub-group of users on the user device.

A signature comprised of a plurality of data blocks formatted in accordance with a multicast communications protocol is received from a target appliance. When it is determined that one or more of the plurality of data blocks has been populated with user data, a representation of at least a portion of signature is provided to an analytics engine for processing whereby the user data within the one or more of the plurality of data blocks is replaced with a predicted, original data. The predicted, original data is then usable to provision a controlling device with a command code set for use in communicating commands to the target appliance.

A social networking server receives a request from a member of an organization to configure a targeted update for the organization. The targeted update may be intended for a particular group of members of a social network service. The social networking server may provide various follower dimensions to associate with the targeted update, where each of the follower dimensions include one or more selectable attributes. When the social networking server receives a request for an organization's webpage from a member of the social network service, the social networking server may compare member attributes of a member profile associated with the member with the follower dimension attributes associated with the targeted update. The social networking server may provide the targeted update for display with the webpage of the organization based on the member attributes satisfying at least one follower dimension attribute associated with the targeted update.

System and methods are provided for receiving identification information from remote user devices associated with users. The identification information serves to obtain corresponding stored user profiles. Primary communication channels are generated for each user based upon their profiles. Each such primary channel is limited to communication with, and facilitates electronic communication between, a single corresponding enterprise data source, and users. For each respective primary channel in a subset of the primary channels of a first user, a corresponding plurality of sub-channels is generated based upon their profile. Each such plurality of sub-channels forms a corresponding hierarchical tree with the corresponding primary channel as root node and the sub-channels as child nodes. A sub-channel in a hierarchy of sub-channels enables secure bidirectional communication between (i) the remote user device associated with the first user and (ii) the enterprise data source associated with the primary channel of the hierarchy.

For logical multicasting in overlay networks, at a data processing system, an original unicast packet is received from a first component in a first computing node in an overlay network. To cause multicasting in the overlay network the received original unicast packet was unicast by the first computing node only to the data processing system, and a multicast data structure for the overlay network is maintained only by the data processing system, the multicast data structure containing information of each receiver that is configured to receive unicast packets during logical multicasting in the overlay network. From a set of subscriber receivers in the multicast data structure, a subset of the subscriber receivers is selected. A copy of the original unicast packet is unicast to each subscriber receiver in the subset.

A data transmission method is performed at a data transmission system, including: receiving, by a transit device, audio/video data sent by a target client terminal that is in a target communication channel and has an audio/video upstream authority; forwarding, by the transit device, the audio/video data to a broadcast proxy device in the target communication channel, the broadcast proxy device being connected to at least one second client terminal that is in the target communication channel and does not have an audio/video upstream authority; and forwarding, by the broadcast proxy device, the audio/video data to each second client terminal in a corresponding downstream transmission mode according to network quality information of the second client terminal, the network quality information of each second client terminal being collected by the broadcast proxy device in advance.

Methods, systems, and media for sending a message about a new video to a group of related users are provided. In accordance with some embodiments, the method comprises: determining that a new video associated with a content creator has been uploaded to a video sharing service; identifying a group of candidate users to receive a message indicating that the new video is available; identifying a sub-group of users within the group of candidate users based on relationships of users within the group to each other; determining a time to send the message; transmitting the message to the sub-group of users at the determined time; determining that the message has been selected by a user device associated with a user of the sub-group of users; and causing the new video to be presented in a user interface including a communication interface associated with the sub-group of users on the user device.

The present invention relates to an application that is configured to be operated in a multi-participant environment on a computer network. The application manages participants in an online session of a multi-user application so that if one of the participants exits the session, the session can continue without interruption. The application initiates an online session of the multi-user application, wherein the online session includes two or more participants comprised of network computers that are communicatively linked to a computer network. If the application detects that a first participant has disconnected from the online session, wherein the first participant is responsible for managing certain managerial functionality associated with the running of the multi-user application, then the application broadcasts a notification to existing participants of the online session over the communication network, thereby notifying the existing participants that the first participant has disconnected from the online session. The initiating application then re-assigns the functionality associated with the first participant to an existing participant of the online session. The participants can be communicating in a peer-to-peer arrangement or can be performing server duties in a client-server arrangement.