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affect also functioning of PTP and the modifiedBMC is used only
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if WR\_MASTER\_AND\_SLAVE flag is set for a port. Otherwise, the
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modified BMC is skipped
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3. Single fiber for two ways communication vs two fibers
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1. **Description:** Can WR be used with two separate fibers for Rx
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and Tx ? Yes, but with performance degradation for links longer
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then few meters
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2. **Change in WR spec:** State explicitly that sub-ns accuracy can
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be achieved only with single fiber, however two fibers will work
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as well but with worse performance
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