This application discloses a method and an apparatus for forwarding a packet based on an integrated flow table. The integrated flow table includes a plurality of flow entries, each of the plurality of flow entries includes a mapping relationship between a match item and an operation set, the match item includes a plurality of packet header fields, and the method includes: obtaining a first packet; extracting a plurality of first packet header fields from a packet header of the first packet; searching the integrated flow table for a target flow entry matching the plurality of first packet header fields, to determine an operation set corresponding to the first packet; and performing the other operations in the operation set on the first packet, to obtain a second packet corresponding to the first packet, and forwarding the second packet.

The present disclosure is directed to adaptive networking policy with user defined fields and includes one or more processors and one or more computer-readable non-transitory storage media coupled to the one or more processors and comprising instructions that, when executed by the one or more processors, cause one or more components to perform operations including generating a user defined attribute (UDA) value corresponding to a set of attributes; receiving, at a network device, a packet having one or more packet conditions; determining that the one or more packet conditions of the packet match the set of attributes of the UDA value; assigning a UDA tag to the packet, wherein the UDA tag corresponds to the UDA value and is configured for chaining with one or more other UDA tags; and taking an action on the packet based on the UDA tag.

A network device transfers packets from a packet memory to one or more network interfaces for transmission by the one or more network interfaces. The transferring of packets includes transferring the packets via one or more respective transmit data paths that correspond to one or more respective network interfaces. The network device measures one or more respective amounts of time required to transmit respective packet data within the one or more respective transmit data paths. The network device uses the one or more respective measured amounts of time to determine when to start transfer of packets from the packet memory to the one or more network interfaces via the one or more respective transmit data paths.

The technologies described herein are generally directed toward shedding processing loads associated with route updates. According to an embodiment, a system can comprise a processor and a memory that can enable operations facilitating performance of operations including facilitating receiving, from a second routing device, a route update for a routing table of the first routing device, wherein the route update is associated with a route. The operations can further comprise evaluating a value of the route update, resulting in an evaluated value of the route update. The operations can further comprise updating an entry of the routing table based on the route update and the evaluated value of the route update.

The conventional relay device has a problem that a traffic load on a communication device is large when an output port of a frame including a destination address, which an address table has not learned yet, is a port connected to a branch circuit, since flooding is performed on all ports except for a port that has received the frame. A relay device (21) is provided with a destination determination unit (41) to transfer, when a time clocked by a timer unit (40) to start clocking is within a set time, a frame to ports (511 and 512) connected to trunk circuits (61 and 64), and when the time clocked by the timer unit (40) exceeds the set time, to transfer the frame to the ports (511 and 512) connected to the trunk circuits (61 and 64) and a port (513) connected to a branch circuit (65), in a case wherein it is impossible for a search unit (43) to obtain from a first storage unit (33) a port number corresponding to a destination address included in the frame received, and the first storage unit (33) is cleared.

The present disclosure discloses a method, system, and device for switching a Layer 2 tunnel. The method includes: when the Layer 2 tunnel is switched from a first point of presence (POP) server to a second POP server, obtaining, by the first POP server, a current address information table, and constructing an address information packet; forwarding, by a switch, the address information packet to the second POP server; constructing, by the second POP server, spoofing packets according to an address information table carried in the address information packet; wherein each MAC address in the address information table is sequentially used as a source address of each of the spoofing packets; and receiving, by the switch, the spoofing packet sent from the second POP server, and updating a local address information table according to a port for receiving the spoofing packet and a source address in the spoofing packet.

Some embodiments of the invention provide a forwarding element that can be configured through in-band data-plane messages from a remote controller that is a physically separate machine from the forwarding element. The forwarding element of some embodiments has data plane circuits that include several configurable message-processing stages, several storage queues, and a data-plane configurator. A set of one or more message-processing stages of the data plane are configured (1) to process configuration messages received by the data plane from the remote controller and (2) to store the configuration messages in a set of one or more storage queues. The data-plane configurator receives the configuration messages stored in the set of storage queues and configures one or more of the configurable message-processing stages based on configuration data in the configuration messages.

A method is performed by a first server on a chip (SoC) node that is one instance of a plurality of nodes within a cluster of nodes. An operation is performed for determine if a second one of the SoC nodes in the cluster has data stored thereon corresponding to a data identifier in response to receiving a data retrieval request including the data identifier. An operation is performed for determining if a remote memory access channel exists between the SoC node and the second one of the SoC nodes. An operation is performed for access the data from the second one of the SoC nodes using the remote memory access channel after determine that the second one of the SoC nodes has the data stored thereon and that the remote memory access channel exists between the SoC node and the second one of the SoC nodes.

Disclosed by embodiments of the present application are a network access method used for an edge router and an edge router. One specific embodiment of the method comprises: receiving a first request message sent by a first tenant network edge device among at least one tenant network edge device; on the basis of port information of a port connected to the first tenant network edge device, obtaining a first request identification corresponding to the first tenant network edge device, wherein the first request identification is used to identify the first tenant network edge device; adding the first request identification to the first request message so as to generate a processed first request message; and on the basis of a stored routing table, forwarding the processed first request message to a cloud gateway.

Methods for dynamic forward proxy chaining are performed by systems and devices. A forward proxy server receives an electronic communication message that includes destination information in a header and payload information. Destination information includes an ordered set of subsequent destination identifiers associated with subsequent forward proxy servers and an ultimate destination identifier for the electronic communication message. The destination information in the electronic communication message is modified by the forward proxy server to generate a modified electronic communication message. Based on proxy operations performed by the forward proxy server, destination information is modified by removing destinations, adding destinations, altering ports for destinations, and other modifications. The forward proxy server establishes an electronic connection with a next destination based on the destination information or the modified destination information, and the modified electronic communication message is provided to the next destination by the forward proxy server via the electronic connection.