简介
2011年IEEE802.1AS标准
介质依赖层
MDSyncSend{
followUpCorrectionField,
sourcePortIdentity,
logMessageInterval,
preciseOriginTimestamp,
upstreamTxTime,
rateRatio,
gmTimeBaseIndicator,
lastGmPhaseChange,
lastGmFreqChange}
MDSyncReceive{
followUpCorrectionField,
sourcePortIdentity,
logMessageInterval,
preciseOriginTimestamp,
upstreamTxTime,
rateRatio,
gmTimeBaseIndicator,
lastGmPhaseChange,
lastGmFreqChange}
介质无关层
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