A novel algorithm for packet classification that is based on a novel search structure for packet classification rules is provided. Addresses from all the containers are merged and maintained in a single Trie. Each entry in the Trie has additional information that can be traced back to the container from where the address originated. This information is used to keep the Trie in sync with the containers when the container definition dynamically changes.

Described are platforms, systems, and methods for resource fairness enforcement. In one aspect, a programmable input output (IO) device comprises a memory unit, the memory unit having instructions stored thereon which, when executed by the programmable IO device, cause the programmable IO device to perform operations comprising: receiving an input from a logical interface (LIF); determining, by at least one meter, a metric regarding at least one resource used during a processing of the input through a programmable pipeline; and regulating additional input received from the LIF based on the metric and a threshold for the at least one resource.

Some embodiments provide a method for configuring a logical middlebox in a hosting system that includes a set of nodes. The logical middlebox is part of a logical network that includes a set of logical forwarding elements that connect a set of end machines. The method receives a set of configuration data for the logical middlebox. The method uses a stored set of tables describing physical locations of the end machines to identify a set of nodes at which to implement the logical middlebox. The method provides the logical middlebox configuration for distribution to the identified nodes.

Methods and apparatus to execute a workload in an edge environment are disclosed. An example apparatus includes a node scheduler to accept a task from a workload scheduler, the task including a description of a workload and tokens, a workload executor to execute the workload, the node scheduler to access a result of execution of the workload and provide the result to the workload scheduler, and a controller to access the tokens and distribute at least one of the tokens to at least one provider, the provider to provide a resource to the apparatus to execute the workload.

A system for multicast packet management in a first switch in an overlay tunnel fabric is provided. The system can operate the first switch as part of a virtual switch in conjunction with a second switch of the fabric. The virtual switch can operate as a gateway for the fabric. During operation, the system can receive a join request for a multicast group. The system can then determine whether to forward the join request to the second switch based on a type of a first ingress connection of the join request. Upon receiving a data packet for the multicast group, the system can determine how to forward the data packet based on respective types of a second ingress connection and an egress connection of the data packet. The type of a respective connection can indicate whether the connection includes an overlay tunnel.

Techniques for utilizing multiple network interfaces for a cloud shell are provided. The techniques include receiving, by a computer system, a command to execute an operation by the computer system, the command being received from a router via a primary virtual network interface card (vNIC). The computer system may execute the operation, generating an output of the operation. The techniques also include transmitting, by the computer system, a message comprising the output of the operation to a shell subnet via a secondary vNIC, the secondary vNIC being configured for unidirectional transmission from the computer system to the shell subnet. The shell subnet may be configured to transmit the output of the operation to an external network via a network gateway.

Devices and techniques for accelerated packet processing are described herein. The device can match an action to a portion of a network data packet and accelerate the packet-processing pipeline for the network data packet through the machine by processing the action.

Roughly described: a network interface device has an interface. The interface is coupled to first network interface device circuitry, host interface circuitry and host offload circuitry. The host interface circuitry is configured to interface to a host device and has a scheduler configured to schedule providing and/or receiving of data to/from the host device. The interface is configured to allow at least one of: data to be provided to said host interface circuitry from at least one of said first network device interface circuitry and said host offload circuitry; and data to be provided from said host interface circuitry to at least one of said first network interface device circuitry and said host offload circuitry.

A stateful packet processing system includes: a first stateful stage including a first state table and a first finite state machine (“FSM”) table; and a second stateful stage including a second state table and a second FSM table. The system performs a distribution operation defining when a flow is processed by the first and/or the second stateful stage. The first and/or second FSM table is extended with states and transitions that support the distribution operation. The first and/or second stateful stage executes an evaluation operation that executes the distribution operation. The evaluation operation provides a criterion for moving a particular flow from one of the first or second stateful stage to the other stateful stage. The first and second stateful stages are included in a software-defined networking (“SDN”) switch. The distribution operation operates within defined capabilities of a software and/or hardware pipeline of the SDN switch.

A method for data transmission may be implemented on an electronic device having one or more processors. The one or more processors may include a master queue including a master queue head and a plurality of primary ports that are connected to each other using a serial link. The method may include operating the master queue head to obtain a message. The method may also include operating the master queue head to segment the message into a plurality of segments. The method may also include operating the master queue head to transmit the plurality of segments to a first primary port of the plurality of primary ports in the master queue. The method may also include operating the first primary port to transmit the plurality of segments to a second primary port of the plurality of primary ports in the master queue.