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Method and apparatus for integrating precise time protocol and media access control security in network elements
Method and apparatus for integrating precise time protocol and media access control security in network elements
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机译:在网元中集成精确时间协议和媒体访问控制安全性的方法和装置
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摘要
A transmit portion of a network device including a medium access control (MAC) module configured to receive a frame of data to be transmitted from the network device in accordance with a MAC security (MACsec) protocol. In response to the frame of data being a precise time protocol (PTP) frame, the MAC module is configured to encrypt the PTP frame in accordance with the MACsec protocol, and associate an identifier with the encrypted PTP frame. A physical layer module includes a transmit module configured to transmit the encrypted PTP frame from the network device at a particular time. A PTP module configured to, based on the identifier associated with the encrypted PTP frame, generate a time stamp indicating the particular time that the transmit module transmits the encrypted PTP frame from the network device. The time stamp is transmitted from the network device along with the encrypted PTP frame.
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