A method for a hypervisor to implement flow-based local egress in a multisite datacenter is disclosed. The method comprises: determining whether a first data packet of a first data flow has been received. If the first data packet has been received, then the hypervisor determines a MAC address of a first local gateway in a first site of a multisite datacenter that communicated the first data packet, and stores the MAC address of the first local gateway and a 5-tuple for the first data flow. Upon determining that a response for the first data flow has been received, the hypervisor determines whether the response includes the MAC address of the first local gateway. If the response includes a MAC address of another local gateway, then the hypervisor replaces, in the response, the MAC address of another local gateway with the MAC address of the first local gateway.

The disclosure relates to content delivery systems such as gateways for use in locations where the services of many end user devices are provided by a common management entity, such as hospitality, dormitory, healthcare, or other enterprise settings. The disclosure includes methods of initializing a gateway configuration and operating a gateway by ingesting content from a variety of signals (satellite, broadcast, cable, and IP), processing the content to have additional desired features, and reassembling content in various forms for delivery to individual end user devices.

A method and system that include techniques for an offload controller that controls functionality of a programmable switch. The offload controller may handle hash management and/or hash collision resolution for the programmable switch. The offload controller may additionally or alternatively configure the programmable switch to forward packets directly to a virtual private cloud (VPC) and/or virtual machine (VM), bypassing a gateway in some instances.

A method and system are devised of moving at a NAS (1) a client (12, 13) with a MAC address, from a first VLAN to a second VLAN. A leaf is comprised of at least one intermediate L2 bridge/switch (5, 9) being connected to the NAS (1). The client (12, 13) is being connected to one (9) of the at least one intermediate L2 bridge/switches (5, 9) in the leaf. The method and system involve sending at the NAS (1) a first message downlink (31, 36) to intermediate L2 bridge/switches (5) in the leaf directly connected to the NAS. They further involve at each intermediate L2 bridge/switch (5, 9) in the leaf: upon receiving the first message from uplink from the NAS (1) or an intermediate L2 bridge/switch (5, 9) in the leaf, determining whether the client (12, 13) is directly or indirectly connected to one of its ports; and if it is directly connected, bouncing the port to which the client (12, 13) is connected, and sending a second message uplink to the NAS (1) or an intermediate L2 bridge/switch (5, 9) in the leaf; if it is indirectly connected, sending the first message downlink on the port to which the client (12, 13) is indirectly connected to an intermediate L2 bridge/switches (5, 9) in the leaf; and if it is not connected, sending a third message uplink to the NAS (1) or an intermediate L2 bridge/switch (5, 9) in the leaf. They further involve at each intermediate L2 bridge/switch (5, 9) in the leaf: upon receiving the second or third message from downlink from an intermediate L2 bridge/switch (5, 9) in the leaf, forwarding it uplink to the NAS (1) or an intermediate L2 bridge/switch (5, 9) in the leaf. Finally the client (12, 13) may initiate a DHCP request in the second VLAN.

A method and system are devised of moving at a NAS (1) a client (12, 13) with a MAC address, from a first VLAN to a second VLAN. A leaf is comprised of at least one intermediate L2 bridge/switch (5, 9) being connected to the NAS (1). The client (12, 13) is being connected to one (9) of the at least one intermediate L2 bridge/switches (5, 9) in the leaf. The method and system involve sending at the NAS (1) a first message downlink (31, 36) to intermediate L2 bridge/switches (5) in the leaf directly connected to the NAS. They further involve at each intermediate L2 bridge/switch (5, 9) in the leaf: upon receiving the first message from uplink from the NAS (1) or an intermediate L2 bridge/switch (5, 9) in the leaf, determining whether the client (12, 13) is directly or indirectly connected to one of its ports; and if it is directly connected, bouncing the port to which the client (12, 13) is connected, and sending a second message uplink to the NAS (1) or an intermediate L2 bridge/switch (5, 9) in the leaf; if it is indirectly connected, sending the first message downlink on the port to which the client (12, 13) is indirectly connected to an intermediate L2 bridge/switches (5, 9) in the leaf; and if it is not connected, sending a third message uplink to the NAS (1) or an intermediate L2 bridge/switch (5, 9) in the leaf. They further involve at each intermediate L2 bridge/switch (5, 9) in the leaf: upon receiving the second or third message from downlink from an intermediate L2 bridge/switch (5, 9) in the leaf, forwarding it uplink to the NAS (1) or an intermediate L2 bridge/switch (5, 9) in the leaf. Finally the client (12, 13) may initiate a DHCP request in the second VLAN.

An onboard relay device relays data which is transmitted and received between a first onboard device connected to a first network and a second onboard device connected to a second network, and includes: a determination unit configured to determine whether the first network is a target for cooperation control in which a network state is changed along with the second network; and a control unit configured to transmit a request associated with a change of the network state to the second network when first data has been received from the first onboard device in a case where the first network is the target for the cooperation control.

A standard track smart home system, comprising: a gateway device (1), a power interface of the gateway device (1) being respectively connected to a power supply live line (L) and a power supply zero line (N), the gateway device (1) remotely connecting to at least one user terminal, and the gateway device (1) being also used for connecting to a plurality of first expansion devices (10); and a standard track (T), the gateway device (1) and the plurality of first expansion devices (10) being arranged side by side on the standard track (T) and connected to one another by means of a plurality of wiring terminals, and outgoing interfaces of each of the first expansion devices (10) being respectively connected to one or more smart home devices.

The disclosure relates to content delivery systems such as gateways for use in locations where the services of many end user devices are provided by a common management entity, such as hospitality, dormitory, healthcare, or other enterprise settings. The disclosure includes a gateway system that is configurable to ingest content from a variety of signals (satellite, broadcast, cable, and IP), process the content to have additional desired features, and reassemble content in various forms for delivery to individual end user devices. The gateway can be constructed from a series of modular processing blades with specific processing functions all interconnected by a common backplane and managed by a control module. A gateway can be inserted downstream from a node to allow additional end units to be added without exceeding the node capacity.

A network system is provided. The network system includes a first network device and a second network device running in data link layer (L2). The first network device includes a first switch and a first PPPoE (Point-to-Point over Ethernet) agent integrally coupled to the first switch. The second network device also includes a second switch and a second PPPoE agent integrally coupled to the second switch. The network system further includes a PPPoE client running in network layer (L3) that communicates to the first PPPoE agent and a PPPoE server in L3 that communicates to the second PPPoE agent. The PPPoE client uses a broadcast (Bcast) MAC address in an initial IPCP (Internet Protocol Control Protocol) negotiation message between the PPPoE client and the PPPoE server.

A method and system that include techniques for an offload controller that controls functionality of a programmable switch. The offload controller may handle hash management and/or hash collision resolution for the programmable switch. The offload controller may additionally or alternatively configure the programmable switch to forward packets directly to a virtual private cloud (VPC) and/or virtual machine (VM), bypassing a gateway in some instances.