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Method and apparatus for integrating precise time protocol and media access control security in network elements

US8990552B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8990552-B2
Application numberUS-201313858689-A
CountryUS
Kind codeB2
Filing dateApr 8, 2013
Priority dateAug 22, 2008
Publication dateMar 24, 2015
Grant dateMar 24, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

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.

First claim

Opening claim text (preview).

What is claimed is: 1. A transmit portion of a network device, the transmit portion comprising: 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, wherein in response to the frame of data being a precise time protocol (PTP) frame, the medium access control (MAC) module is configured to encrypt the precise time protocol (PTP) frame in accordance with the MAC secur…

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View patent family 41697412

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Frequently asked questions

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What does patent US8990552B2 cover?
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 asso…
Who is the assignee on this patent?
Marvell World Trade Ltd
What technology area does this patent fall under?
Primary CPC classification H04L63/04. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).