摘要:
While transmitting a first Ethernet frame from the first buffer onto an Ethernet link, a first Ethernet device may stop transmitting the first frame prior to completing transmission of the frame. The first Ethernet device may then transmit a second frame from a second buffer onto the Ethernet link. The first Ethernet device may resume transmission of the first frame from the first buffer onto the Ethernet link. A second Ethernet device may receive, via the Ethernet link, a first portion of a first Ethernet frame and store the first portion of the first Ethernet frame in a first buffer. The second Ethernet device may then receive, via the Ethernet link, a second Ethernet frame and store the second Ethernet frame in a second buffer. The second Ethernet device may then receive, via the Ethernet link, a second portion of the first Ethernet frame and append it to the contents of the first buffer.
摘要:
Various aspects of a method and system for low-latency networking are provided. Latency requirements of traffic to be communicated along a network path comprising one or more Ethernet links may be determined. A maximum size of Ethernet frames utilized for communicating the traffic may be determined based on the latency requirements. The maximum size of the Ethernet frames may be determined based on a data rate of one or more Ethernet links along the network path. A single device may utilize different maximum packet sizes for different ports/links on which it communicates. One or more messages indicating the determined maximum size may be communicated among devices along the network path to coordinate maximum packet sizes.
摘要:
Aspects of a method and system for Ethernet and multimedia functions into a LAN subsystem are provided. In this regard, an integrated network interface which may comprise one or more Ethernet interfaces, and one or more high definition (HD) multimedia interfaces may be enabled to transmit and/or receive HD multimedia content over a network. Audio/Video Bridging and/or Audio/Video Bridging extensions may be utilized for the transmission and/or reception of HD multimedia content over a network. The integrated network interface may be enabled to transmit and/or receive physical layer signals adhering to protocols such as Ethernet and DisplayPort and may be configurable to select the type of signals to be transmitted or received. In this regard, aspects of the invention may enable converting Ethernet frames to DisplayPort micro-packets and visa-versa.
摘要:
A network node module within a vehicle operates to manage devices coupled to a vehicular communication network of the vehicle based on a use mode defining rights and privileges for operating in the vehicular communication network. Upon being configured in accordance with a particular use mode of a set of use modes, the network node module can identify a device coupled to the vehicular communication network and enable the device to operate within the vehicular communication network in accordance with the use mode. The network node module is securely reconfigurable to any use mode in the set of use modes.
摘要:
Methods and systems for docking a laptop with Ethernet A/V bridging to guarantee services are disclosed and may include interfacing a portable computing device with a docking station using an Ethernet interface, and utilizing audio/video (AV) bridging for communicating data between the portable computing device and one or more devices coupled to the docking station. AV bridging may be utilized based on latency requirements of the data communication. The interfacing may include directly coupling an Ethernet port of the docking station to an Ethernet port of the portable computing device. Alternatively, the interfacing may include coupling an Ethernet port of the docking station to an Ethernet port of the portable computing device via an Ethernet cable. The portable computing device may be powered via the Ethernet interface, and may utilize power over Ethernet protocol. The docking station may include a passive or active docking station.
摘要:
Power management within a vehicle is achieved by maintaining individual and/or power island power saving options for each of a plurality of devices coupled to a vehicular communication network of the vehicle. Upon determining that power savings should be enabled for a device, at least one of the power saving options for the device is selected and applied.
摘要:
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.
摘要:
Aspects of a method and system for managing multimedia traffic over Ethernet are provided. In this regard, multimedia traffic comprising one or more Ethernet frames may be identified via one or more headers comprising the frames and processed according to the identification. In this regard, general Ethernet traffic may be multiplexed into egress frames based on the identification. Similarly, ingress Ethernet frames may be demultiplexed into multimedia traffic and general traffic based on the identification. Headers utilized to identify and/or route multimedia traffic and general traffic may comprise Ethertype and/or subtype fields. Headers utilized to identify and/or route multimedia traffic and general traffic may comprise a connection identifier field. Similarly, Headers utilized to identify and/or route multimedia traffic and general traffic may comprise a data type field.
摘要:
A network device comprising an asymmetric, multi-rate, Ethernet, optical MAC and an asymmetric, multi-rate, Ethernet, optical PHY, communicates optical signals via a network utilizing NV bridging services. Higher bandwidth NV optical signals are communicated and lower bandwidth optical signals are received and/or vice versa. Optical signals may be communicated based on a plurality of different single mode Ethernet optical protocols and/or different multimode Ethernet optical protocols. Optical signals may be communicated at 10 Gbps in one direction and at a lower rate in a reverse direction. Extended range mode may be utilized. PDUs comprise time stamps, traffic class designations and/or destination addresses. Data rate requests, resource reservation messages and/or registration for delivery of PDUs may be communicated. Time stamps enable end to end transport within a specified latency target. Video signals may be compressed, uncompressed, encrypted, unencrypted and/or formatted for a video display interface.
摘要:
A first network device may select a plurality of network paths for establishing a plurality of network connections to a second network device. The selection may be based on support of IEEE Audio Video Bridging (AVB) protocols. The first network device may establish at least one of the plurality of connections over each of the selected network paths. The first network device may concurrently transmit and/or receive a plurality of data streams via the established plurality of network connections. At least a second one of the plurality of data streams may comprise data that is redundant to a first one of the plurality of data streams. One of the plurality of network connections may be selected for conveying a primary data stream based on determined path costs of the plurality of network paths, where non-AVB links may be assigned higher path costs than AVB link.