Re: [Linuxptp-users] logAnnounceInterval Vs announceReceiptTimeout
PTP IEEE 1588 stack for Linux
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From: Richard C. <ric...@gm...> - 2015-03-18 12:29:03
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On Wed, Mar 18, 2015 at 12:11:57PM +0000, Chandra Mallela wrote: > My understanding is that logAnnounceInterval (default 1 in every two seconds) is to be set up at the master and announceReceiptTimeout (default 3 messages before the last message reception) to be at the slave. Am I right? Yes and no. The range of choices for these two parameters is determined by the profile. For any PTP network, all of the nodes must use the profile and the same particular values in order to ensure the correct operation of BMC algorithm. The 'master' and 'slave' roles are not static on a given port, but rather they can change depending on the outcome of the BMC election. Refering to IEEE 1588 might help clarify these and other points for you. Also, take a look at the telecom profile. HTH, Richard |