In one implementation, an adapter device includes a processor and a storage medium including instructions. The instructions are executable by the processor to: deploy a composer container in the adapter device, wherein the adapter device is coupled to a host device; receive, by the composer container, a plurality of adapter service requests from the host device; and in response to the plurality of service requests, deploy, by the composer container, a plurality of service containers in the adapter device, wherein each service container is to provide a particular adapter service to the host device, and wherein each service container is allocated a subset of the plurality of computing resources of the adapter device.

An apparatus includes: a storing device including regions allocated to virtual machines (VMs); a processing device executing the VMs; a relay device executing a relaying process; and a transfer processor transferring data between the regions. The processing device stores a first and second numbers associated with a used entry among first entries allocated to the transfer processor and a used entry among second entries allocated to the relay device, respectively, the first and second numbers being included in numbers associated with entries of a reception buffer in a first region allocated to a first VM; and sets a smaller first and second numbers in the processing device to a number being set in the first region and representing an entry of data read from the reception buffer.

In general, embodiments of the invention relate to routing packets between hosts or virtual machines in different layer 2 domains. More specifically, embodiments of the invention relate to using overlay routing mechanisms in an Internet Protocol (IP) fabric to enable communication between hosts or virtual machines in different layer 2 domains to communication. The overlay routing mechanisms may include direct routing, indirect routing, naked routing, or a combination thereof (e.g., hybrid routing).

Methods and systems for facilitating an equitable bandwidth distribution across downstream devices in asymmetrical switch topologies, and in particular asymmetrical PCIe switch topologies. The equitable distribution of bandwidth is achieved in asymmetrical topologies using virtual switch partitioning. An upstream switch that is connected to the root complex via an upstream port and that receives bandwidth B from the upstream port, is virtualized into two or more virtual switches. Each virtual switch equally shares the bandwidth. Each virtual switch is allocated to downstream devices that are connected to the upstream switch as well as to one or more downstream switches that are connected to the upstream switch. Each downstream switch may be connected to one or more additional downstream devices.

Disclosed is a communication control method of a container in a container environment provided from a computing apparatus, performed by a controller. The communication control method may include, when the container is newly generated, generating a flow rule for controlling a communication path of a data packet related to the container through a software switch supporting OpenFlow; generating tunnel information that includes a tunnel inner Internet protocol (IP) corresponding to the container; and transmitting the flow rule or the tunnel information to the computing apparatus.

Methods and systems for implementing private allocated networks in a virtual infrastructure are presented. One method operation creates virtual switches in one or more hosts in the virtual infrastructure. Each port in the virtual switches is associated with a private allocated network (PAN) from a group of possible PANs. In one embodiment, one or more PANs share the same physical media for data transmission. The intranet traffic within each PAN is not visible to nodes that are not connected to the each PAN. In another operation, the method defines addressing mode tables for the intranet traffic within each PAN. The entries in the addressing mode tables define addressing functions for routing the intranet traffic between the virtual switches, and different types of addressing functions are supported by the virtual switches.

Some embodiments provide a method for implementing a logical router in a logical network. In some embodiments, the method receives a configuration of a static route for the logical router, which includes several routing components with separate routing tables. The method identifies which of the routing components require addition of a route to a corresponding routing table to implement the configuration of the static route. The method adds the routes to the corresponding separate routing tables of the identified routing components.

Systems and methods for supporting efficient virtualization in a lossless interconnection network. An exemplary method can provide, one or more switches, including at least a leaf switch, a plurality of host channel adapters, wherein each of the host channel adapters comprise at least one virtual function, at least one virtual switch, and at least one physical function, a plurality of hypervisors, and a plurality of virtual machines, wherein each of the plurality of virtual machines are associated with at least one virtual function. The method can arrange the plurality of host channel adapters with one or more of a virtual switch with prepopulated local identifiers (LIDs) architecture or a virtual switch with dynamic LID assignment architecture. The method can assign each virtual switch with a LID. The method can calculate one or more linear forwarding tables based at least upon the LIDs assigned to each of the virtual switches.

Systems and methods described herein provide a high availability DHCP server capable of serving multiple tenants in a data center. The DHCP server may use a different logical DHCP server instance for each tenant, and may be implemented as one process without the use of namespaces. A DHCP server is executed on a gateway virtual machine (VM) that is capable of hosting a plurality of logical DHCP servers. For each tenant in a data center, a logical network and a corresponding logical DHCP server instance are implemented. The DHCP server may service requests for DHCP services from VMs via their physical host by determining the tenant that the VM originates from and leasing a DHCP resource from that tenant's corresponding logical DHCP server instance.

A server includes a normal NIC as an NIC having an expansion function, and a virtual patch panel having a transfer function of transferring packets between the normal NIC and an accelerator utilization type NIC, which is implemented by software. The server is configured such that, when a packet is transferred between the normal NIC and the accelerator utilization type NIC via the virtual patch panel, the target function transfers the packet to and from the APLs.