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Priority Pause (PFC) in Virtualized/Non-Virtualized Information Handling System Environment
Priority Pause (PFC) in Virtualized/Non-Virtualized Information Handling System Environment
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机译:虚拟化/非虚拟化信息处理系统环境中的优先级暂停(PFC)
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摘要
A priority based pause frame format for use with a system which enables traffic for a particular source (e.g., the source that is causing the congestion) to be paused on a particular priority queue instead of pausing the traffic for all sources. In certain embodiments, the system provides enhancements to a priority based pause frame format specified by the DCB standard. Also, in certain embodiments, the system maintains a per MAC pause/resume status at a per priority queue level on each network port in network device such as a switch or converged network adapter (CAN). In certain embodiments, the system further includes a mechanism for a congested port to generate source specific pause/resume frame. Also, in certain embodiments, the system further includes a mechanism to process queues and packets at a port receiving a pause/resume frame. Such a system advantageously enables hardware based processing of packets in each queue of a network which conforms to the DCB standard.
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