Symmetricom XLi IEEE 1588 manual Glossary of Ieee 1588-related Terms

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Glossary of IEEE 1588-related Terms

Boundary Clock: Generally a switch with more than a single IEEE 1588 equipped port, which is a slave on one port and a master on all others.

Grandmaster Clock: Within an IEEE 1588 subdomain, a Grandmaster clock is the ultimate source of time for clock synchronization using the IEEE 1588 protocol.

IEEE 1588 Ordinary Clock: A IEEE 1588 clock with a single port. Precision Time Protocol (PTP): The protocol defined by the IEEE 1588 standard.

Transparent Clock: In IEEE 1588 terminology, it is a switch that compensates for its own queuing delays. Neither master or slave.

XLi IEEE 1588 Clock 199

997-01510-03, Rev. C, 12/12/2006