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Precision time protocol offloading in a PTP boundary clock
Precision time protocol offloading in a PTP boundary clock
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机译:PTP边界时钟中的精确时间协议卸载
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摘要
In a data network node implementing the Precision Time Protocol, low-touch PTP packet processing functions are moved from a PTP processing unit into an efficient network processor. An example network node thus includes a time-transfer protocol processing unit that generates negotiation messages and management messages for a time-transfer protocol and forwards said negotiation and management messages to one or more clients. The network node also includes a separate network processor unit, which is adapted to: receive a configuration message from the time-transfer protocol processing unit, the configuration message comprising stream configuration data for a first type of repetitive time-transfer message; generate a plurality of time-transfer messages according to the first type of repetitive time-transfer message, using the stream configuration data; and forward said plurality of time-transfer messages to the one or more remote network nodes, via the one or more line ports.
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