In general, techniques are described for steering data traffic for a subscriber session from a network interface of a wireless access gateway to an anchoring one of a plurality of forwarding units of the wireless access gateway using a layer 2 (L2) address of the data traffic. For example, a wireless access gateway for a wireless local area network (WLAN) access network is described as having a decentralized data plane that includes multiple forwarding units for implementing subscriber sessions. Each forwarding unit may present a network interface for sending and receiving network packets and includes packet processing capabilities to enable subscriber data packet processing to perform the functionality of the wireless access gateway. The techniques enable steering data traffic for a given subscriber session to a particular one of the forwarding units of the wireless access gateway using an L2 address of the data traffic.

A method for a time sensitive network (TSN) having a network topology is disclosed. The method includes determining a set of data flow permutations corresponding to the network topology, computing a respective full schedule corresponding to each data flow permutation of the set of data flow permutations, determining a respective time to compute the full schedule for each flow permutation of the set of data flow permutations, and computing a respective partial schedule for each data flow permutation of the set of data flow permutations. The method further includes selecting a data flow permutation of the set of data flow permutations based at least in part on the respective time to compute the full schedule for the selected flow permutation, and saving the selected data flow permutation to a memory.

Examples disclosed herein relate to receiving, by a scheduler, a request for a window during which to send a data packet through a crossbar. Transmission of the data packet is dependent upon a pool of transmission credits. The scheduler determines whether the pool of transmission credits is sufficient for transmitting the data packet, and when it is determined that the pool of transmission credits is insufficient, the scheduler determines whether to block the request or to speculatively arbitrate the window based on a value of a speculative request counter.

Dynamic fabric systems and methods are disclosed for providing connections between endpoints of a communication network. An exemplary dynamic fabric system can include backplane lanes, a dynamic fabric device, and a control device. The dynamic fabric device can include local fabric lanes and a network interface device configurable to communicatively connect the local fabric lanes to a network. The dynamic fabric device can also include a local switch configurable forward messages to backplane lanes and an interconnect configurable to statically connect local fabric lanes and corresponding backplane lanes. The dynamic fabric device can also include a controller configurable to create or break these static connections. The control device can provide instructions to the dynamic fabric device to create or break the static connections based on changes in the number of active dynamic fabric devices installed in the dynamic fabric system.

A wireless packet switch and methods for controlling the same include a multiple port controllers, each in communication with a respective wireless transceiver, configured to analyze data streams to and from the respective wireless transceiver; a cross-connect switch in communication with all of the port controllers, configured to provide connections between respective port controllers; an arbiter, in communication with all of the port controllers and with the cross-connect switch, configured to control the cross-connect switch, such that the cross-connect switch connects data streams of the port controllers in accordance with packet destination information and scheduling information from the port controllers.

Some embodiments of the invention provide a method for implementing a logical switching element that includes multiple logical ports through which the logical switching element receives and sends data packets. The method configures multiple managed forwarding elements to implement the logical switching element. The method also determines that port isolation has been enabled for the logical switching element. The method further provides a set of data directing the managed forwarding elements to drop a particular data packet received through a first logical port when the particular data packet is addressed to a second logical port different than the first logical port to implement the port isolation.

A traffic manager is shared amongst two or more egress blocks of a network device, thereby allowing traffic management resources to be shared between the egress blocks. Schedulers within a traffic manager may generate and queue read instructions for reading buffered portions of data units that are ready to be sent to the egress blocks. The traffic manager may be configured to select a read instruction for a given buffer bank from the read instruction queues based on a scoring mechanism or other selection logic. To avoid sending too much data to an egress block during a given time slot, once a data unit portion has been read from the buffer, it may be temporarily stored in a shallow read data cache. Alternatively, a single, non-bank specific controller may determine all of the read instructions and write operations that should be executed in a given time slot.

A switch is provided for routing packets in an interconnection network. The switch includes egress ports to transmit packets, and ingress ports to receive packets. The switch also includes a buffer capacity circuit configured to obtain local buffer capacity for buffers configured to buffer packets transmitted via the switch. The switch also includes a telemetry circuit configured to receive telemetry flow control units from next switches coupled to the switch. Each telemetry flow control unit corresponds to buffer capacity at a respective next switch. The switch also includes a network capacity circuit configured to compute network capacity for transmitting packets to a destination based on the telemetry flow control units and the local buffer capacity. The switch also includes a routing circuit configured to receive packets via the ingress ports, and route the packets to the destination, via the egress ports, with bandwidth proportional to the network capacity.

Disclosed are a fine-grained resource control method and apparatus. The method includes: defining, for a function of which resource usage is needed to be restricted, a license item in a license file, wherein the license item is used for representing a resource restriction number for supporting the function; and judging whether a preferential support command is preset for resources of the function, if presetting, controlling the resources of the function according to the preferential support command, a value of the license item and an actual resource number for supporting the function, otherwise, controlling the resources of the function directly according to the value of the license item and the actual resource number for supporting the function.

A non-transitory computer-readable recording medium is provided in which a port switching program for causing a computer to execute a process including: transmitting, in response to a mirror switching instruction that specifies a migration source port and a migration destination port, a first mirror switching notification to a virtual switch that has the migration destination port to request a change of mirror setting in the migration destination port; canceling mirror setting for a transmission packet to the migration destination port in the migration source port; and canceling mirror setting for a received packet from the migration destination port in the migration source port in response to a second mirror switching notification from the virtual switch, the second mirror switching notification indicating the change of the mirror setting in the migration destination port is stored.