A VXLAN multi-tenant inter-networking device packet forwarding system includes a first aggregated networking device coupled to a first host device and a second aggregated networking device that is coupled to second host devices. The first aggregated networking device receives a data packet from the first host device and, in response, identifies a virtual network associated with the first host device. Based on a first and second portion of a virtual network identifier that identifies the virtual network, the first aggregated networking device generates respective first and second packet forwarding identifiers. The first aggregated networking device then provides the first and second packet forwarding identifiers in the data packet, and forwards the data packet to the second aggregated networking device. The second aggregated networking device may then forward the data packet to one of the second host devices based on the first and second packet forwarding identifiers in the data packet.

Systems for communicating over a network and between two or more network connected devices. In particular, the disclosure reveals systems which may utilize multicast communication protocols to facilitate secure communication among one or more network connected devices. A system for secured messaging may include a network system including a first server, a second server and a first node. Further, the first server is configured to authenticate the first node for secure multicast messaging, and the second server is configured to authenticate the first node for secure multicast messaging.

A method comprises, at a first router configured to perform Bit Index Explicit Replication (BIER) for forwarding of multicast packets in a network, storing configuration information that indicates that the first router belongs to multiple subdomains of a BIER domain, and is able to forward the multicast packets for a virtual private network on the multiple subdomains. The method further comprises, during an auto-discovery procedure, generating an auto-discovery message to include an auto-discovery route and route attributes that indicate the multiple subdomains, and sending the auto-discovery message to a second router of the virtual private network the network.

Various example embodiments for supporting stateless multicast communications in a communication system are presented. Various example embodiments for supporting stateless multicast communications may be configured to support stateless multicast communications in a label switching network (e.g., a Multiprotocol Label Switching (MPLS) network, an MPLS—Traffic Engineered (TE) network, or the like) based on a network label space. Various example embodiments for supporting stateless multicast communications based on a network label space may be configured to support assignment, from a network label space of a network, of a set of labels for nodes of the network and for adjacencies of the network. Various example embodiments for supporting stateless multicast communications based on a network label space may be configured to support assignment of node labels from the network label space for nodes of the network and assignment of adjacency labels from the network label space for adjacencies of the network.

An aggregated BIER networking system includes first and second aggregated BFER devices that are each directly connected to first and second receiver devices. The first aggregated BFER device receives a request from the first receiver device for multicast data packets generated by a source device and transmits the request to a BFIR device. The first aggregated BFER device also receives an identification from the second aggregated BFER device of the second receiver device that has requested multicast data packets generated by the source device. The first aggregated BFER device advertises a virtual BFER device that appears to be directly connected to each of the first and second aggregated BFER devices, and each of the first and second receiver devices. The first aggregated BFER device then receives a multicast data packet identifying the virtual BFER device, and forwards the multicast data packet to each of the first and second receiver devices.

In one embodiment, an apparatus includes a processing circuit and logic integrated with and/or executable by the processing circuit. The logic is configured to cause the processing circuit to handle Internet Group Membership Protocol (IGMP) messages received from other devices in a network. Also, the logic is configured to cause the processing circuit to create a general query solicit (GQS) message configured to solicit a general query (GQ) from a multicast snooping querier coupled with the apparatus. The GQS message causes the multicast snooping querier to send out a general query (GQ) message on all ports in response to receiving the GQS message. The GQ message is configured to solicit port information and group membership information from each IGMP switch in the network. Other systems, methods, and computer program products are described in more embodiments.

Network access node virtual fabrics configured dynamically over an underlay network are described. A centralized controller, such as a software-defined networking (SDN) controller, of a packet switched network is configured to establish one or more virtual fabrics as overlay networks on top of the physical underlay network of the packet switched network. For example, the SDN controller may define multiple sets of two of more access nodes connected to the packet switched network, and the access nodes of a given one of the sets may use a new data transmission protocol, referred to generally herein as a fabric control protocol (FCP), to dynamically setup tunnels as a virtual fabric over the packet switched network. The FCP tunnels may include all or a subset of the parallel data paths through the packet switched network between the access nodes for a given virtual fabric.

Provided in embodiments of the present disclosure are a packet forwarding method, device and apparatus, and a storage medium. The method includes: receiving a bit indexed explicit replication (BIER) packet sent by a source apparatus; and forwarding the BIER packet to a destination apparatus according to a set identifier (SI) carried by a packet header of the BIER packet, wherein the set identifier (SI) indicates a cluster in which the destination apparatus resides.

The present invention relates to a method and a device for transmitting a signal of mobility, for transmission or reception of a first radio access technology (RAT)-based signal in a wireless communication system. Specifically, the method comprises the steps of: generating a first RAT-based signal including a message relating to generation of an event; duplicating the message into a second RAT-based signal when the event is associated with a safety service; and transmitting the second RAT-based signal through a resource area associated with the first RAT when the event is associated with the safety service.

A method, device and node for message transmission, and a computer storage medium are provided, the method including Bit Indexed Explicit Replication (BIER) information which is sent by other nodes except a first node in a distance-vector routing protocol (Babel) network in a Babel protocol extension manner is received, wherein the BIER information is used for acquiring a BIER forwarding entry; the BIER forwarding entry is acquired according to the BIER information; and a message encapsulated in a BIER manner is sent to said other nodes according to the BIER forwarding entry.