专利名称：Method and apparatus for integrating
precise time protocol and media accesscontrol security in network elements
发明人：Raghu Kondapalli,Guy T. Hutchison申请号：US13858689申请日：20130408公开号：US08990552B2公开日：20150324
专利附图：
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 databeing a precise time protocol (PTP) frame, the MAC module is configured to encrypt thePTP frame in accordance with the MACsec protocol, and associate an identifier with theencrypted PTP frame. A physical layer module includes a transmit module configured totransmit the encrypted PTP frame from the network device at a particular time. A PTPmodule configured to, based on the identifier associated with the encrypted PTP frame,generate a time stamp indicating the particular time that the transmit module transmitsthe encrypted PTP frame from the network device. The time stamp is transmitted fromthe network device along with the encrypted PTP frame.
申请人：Marvell World Trade Ltd.
地址：St. Michael BB
国籍：BB
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