One embodiment of the present invention provides a switch system. The switch includes a port that couples to a server hosting a number of virtual machines. The switch also includes a link tracking module. During operation, the link tracking module determines that reachability to at least one end host coupled to a virtual cluster switch of which the switch is a member is disrupted. The link tracking module then determines that at least one virtual machine coupled to the port is affected by the disrupted reachability, and communicates to the server hosting the affected virtual machine about the disrupted reachability.

An embodiment logical function architecture for next-generation 5G wireless networks may include a control plane comprising a software defined topology (SDT) logical entity configured to establish a virtual data-plane logical topology for a service, a software defined resource allocation (SDRA) logical entity configured to map the virtual data-plane topology to a physical data-plane for transporting service-related traffic over the wireless network, and a software defined per-service customized data plane process (SDP) logical entity configured to select transport protocol(s) for transporting the service-related traffic over a physical data-plane of the wireless network. An embodiment virtual service specific serving gateway (v-s-SGW) for next-generation 5G networks may be assigned specifically to a service being provided by a group of wirelessly enabled devices, and may be responsible for aggregating service-related traffic communicated by the group of wirelessly enabled devices.

Embodiments of the present invention provide an access network system, and a data packet processing method and apparatus. The system includes: a controller, configured to perform configuration a flow table for a switching module and a protocol function for at least one functional module; the switching module, configured to send a first data packet to a first functional module of the at least one functional module according to the flow table configured by the controller, where the first functional module is a functional module first indicated in the flow table to process the first data packet; and the at least one functional module, configured to process the first data packet according to the protocol function configured by the controller.

An embedded communications network of a vehicle is a deterministic switched Ethernet network using virtual links, including a set of subscribers and a set of switches. A first subscriber is connected to a first switch and a third switch, and a second subscriber is connected to a second switch and to a fourth switch. A first virtual link is formed from the first subscriber to at least the second subscriber via a first subset of switches, and a second virtual link is formed from the first subscriber to at least the second subscriber via a second subset of switches, the switches of the first subset of switches all being separate from the switches of the second subset of switches. The communications network includes at least one connection, used by a third virtual link, between a switch of the first subset and a switch of the second subset.

Aspects of the embodiments are directed to receiving an address resolution protocol (ARP) request message from a requesting virtual machine, the ARP request message comprising a request for a destination address for a destination virtual machine, wherein the destination address comprises one or both of a destination hardware address or a destination media access control address; augmenting the ARP request message with a network service header (NSH), the NSH identifying an ARP service function; and forwarding the augmented ARP request to the ARP service function.

The disclosure provides an approach for pre-filtering traffic in a logical network. One method includes receiving, by a hypervisor, a packet from a virtual computing instance (VCI) and determining a service path for the packet based on a service table. The method further includes setting, by the hypervisor, a pre-filter component as a next hop for the packet based on the service path. The method further includes receiving, by the pre-filter component, the packet. The method further includes making a determination, by the pre-filter component, of whether the packet requires processing by the security component. The method further includes performing, by the pre-filter component, based on the determination, one of: forwarding the packet to its destination and bypassing the security component; or forwarding the packet to the security component.

The disclosure provides an approach for pre-filtering traffic in a logical network. One method includes receiving, by a hypervisor, a packet from a virtual computing instance (VCI) and determining a service path for the packet based on a service table. The method further includes setting, by the hypervisor, a pre-filter component as a next hop for the packet based on the service path. The method further includes receiving, by the pre-filter component, the packet. The method further includes making a determination, by the pre-filter component, of whether the packet requires processing by the security component. The method further includes performing, by the pre-filter component, based on the determination, one of: forwarding the packet to its destination and bypassing the security component; or forwarding the packet to the security component.

Systems, methods, and devices for improved routing operations in a network computing environment. A system includes a virtual customer edge router and a host routed overlay comprising a plurality of host virtual machines. The system includes a routed uplink from the virtual customer edge router to one or more of the plurality of leaf nodes. The system is such that the virtual customer edge router is configured to provide localized integrated routing and bridging (IRB) service for the plurality of host virtual machines of the host routed overlay.

Systems, methods, and devices for improved routing operations in a network computing environment. A system includes a virtual customer edge router and a host routed overlay comprising a plurality of host virtual machines. The system includes a routed uplink from the virtual customer edge router to one or more of the plurality of leaf nodes. The system is such that the virtual customer edge router is configured to provide localized integrated routing and bridging (IRB) service for the plurality of host virtual machines of the host routed overlay.

According to certain embodiments, a system comprises one or more processors and one or more computer-readable non-transitory storage media comprising instructions that, when executed by the one or more processors, cause one or more components of the system to perform operations comprising: receiving location data associated with a plurality of remote users accessing one or more existing remote access gateways that are located at one or more network locations; building a heatmap of user locations based at least in part on the received location data; and identifying, from the heatmap of user locations, at least one new network location in which to generate at least one new remote access gateway, or at least one existing network location in which to remove at least one of the existing remote access gateways.