Abstract:
A network node in a vehicular network processes packets based on a prioritization scheme. The prioritization scheme uses packet type, priority, source, destination, or other information to determine a priority of the packets. Packets can be stored in one of multiple queues organized according to packet type, or other criteria. In some cases, only one queue is used. The packets are time stamped when put into a queue, and a time to live is calculated based on the timestamp. The time to live, as well as other factors such as packet type, packet priority, packet source, and packet destination can be used to adjust a packet's priority within the queue. Packets are transmitted from the queues in priority order. In some cases, the network node can identify a top-priority packet, and transmit the top priority packet without first storing the packet in the queue.
Abstract:
A system and method for multi-pair configuration over existing cabling infrastructure. In one embodiment, a network device is configured through a selective activation of one or more physical layer devices that are coupled to a respective one or more of the conductor pairs that are identified in a diagnostic process. Aggregation can be performed on the data streams carried over the activated conductor pairs.
Abstract:
A system and method for using energy efficiency network refresh signals for exchanging link partner and device information. Energy savings can be realized through a usage of a energy saving state such as a low power idle (LPI) mode. In one embodiment, refresh signals used during the LPI mode can be used to encode information or state within the refresh signals. In general, such encoded information enables link partners to exchange information that would otherwise need to wait until the link partners have transitioned from an energy saving state back to the active state. In various examples, the messaging during the energy saving state can be used to facilitate synchronization during the energy saving state, transitions from the energy saving state, etc.
Abstract:
A system for communication can include a configurable Ethernet connector. The connector can include a first multiple-medium interface. The first multiple-medium interface may include a wireless interface and a wired interface that may be configurable to communicate corresponding wireless and wired messages. The connector can also include a second multiple-medium interface communicatively coupled to the first multiple-medium interface. The second multiple-medium interface may include a wireless interface and an optical interface that may be configurable to communicate corresponding wireless and optical messages. The system can also include a circuit communicatively coupled to the first multiple-medium interface and the second multiple-medium interface. The circuit may be configurable to convert a medium of a message.
Abstract:
A system and method for next generation BASE-T communication. Next generation BASE-T devices designed for communication over twisted pair Ethernet cabling are configurable based on the characteristics of the communication channel. In discovering the characteristics of the communication channel, the physical layer device (PHY) can select one of a plurality of operating modes that can support a given data transmission rate (e.g., 10 Gbit/s, 40 Gbit/s, 100 Gbit/s, 400 Gbit/s, etc.).
Abstract:
Aspects of a method and system for mitigating interference among femtocells via intelligent channel selection are provided. In this regard, signals which may interfere with cellular communications between a femtocell and a cellular communication device may be detected via the femtocell. Based on the detection, the femtocell may be configured to transmit and/or receive signals on one or more frequencies and/or channels. The one or more frequencies and/or channels may be determined in the femtocell and/or in a network management entity. Detecting interfering signals and configuring the one or more femtocells may occur periodically, upon installation of a femtocell, upon power-up of a femtocell, and/or upon command from a network administrator. The results of the detection may be communicated to one or more other femtocells and/or to a network management entity.
Abstract:
Aspects of a method and system for supporting a variable and energy efficient data rate using a duty cycling technique and multiple power states on an Ethernet link are provided. In this regard, a data rate on a network link may be duty cycled based on characteristics of data communicated over it. The network link may operate at a first data rate for a first portion of the time interval and may operate at a second data rate for a second portion of the time interval. The duration of each portion of the time interval and/or the data rate during each portion of the time interval may be adjusted to control the duty cycling. Power consumed in a device connected to the network link may be controlled based on the duty cycling of the link.
Abstract:
A system and method for achieving greater than 10 Gbit/s transmission rates for twisted pair physical layer devices. An architecture is provided that enables transmission at the next standardized transmission rate over structured cabling.
Abstract:
Network devices coupled via serial and/or parallel interfaces may determine a power level mode of operation according to an energy efficient network communication control policy and may configure one or more of the interfaces for the lower power mode. The network devices may comprise a PHY, a MAC and/or higher layer devices. The interfaces may comprise a XGMII extender, a XAUI and/or a XFI device. The interfaces may comprise a backplane PHY, for example, a 10GBASE-KR, a 10GBASE-KX4 and/or a 1GBASE-KX PHY which may perform FEC. The interfaces may comprise direct attach copper such as SFP+ and/or InfiniBand and/or 10GBASE-CX4 PHYs. The interfaces may comprise a pluggable transceiver module. Energy efficient network control data may be communicated to and/or from the network devices which may enter and/or exit a lower power mode of operation.
Abstract:
An industrial process environment uses selective power-over-network (PoN) techniques to facilitate configuration, operation, communication, and other operations for the industrial nodes in the environment. The network may be an Ethernet network, and the environment may selectively deliver power-over-Ethernet as well as command, configuration, or other data over the network connection. The environment may perform the techniques over other types of networks or combinations of networks in addition to or instead of Ethernet networks.