Vitesse Semiconductor Corporation

Microsemi Solutions Sdn. Bhd.

Wiliam D Lopoulos

Ron Lamar Swartzentruber

Ron Swartzentruber

Device and methods determine timing parameters and associated timing actions from timing messages in communication packets. The timing messages may be encapsulated with a plurality of communication protocols. An example timing message may be an IEEE 1588 timing message encapsulated in an Internet protocol packet encapsulated in an Ethernet protocol packet. The protocols are matched in classifier blocks by comparing portions of the packet to bit values or ranges of values. Operation of other than the first classifier block depends on results of matching in the preceding block by using offset values passed between blocks that indicate starting points for the matching. The final classifier block matches values in timing messages to identify timing parameters and associated timing actions in the message.

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Tyngsboro, MA, United States of America

Wiliam D Lopoulos