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Each switch is slaved to the previous switch. Then in turn each switch is master for the network card connected to it then to backplane.
Best Master Clock Algorithm
Order | Attribute | Description |
|---|---|---|
1 | Priority 1 | A user-settable value that overrides the natural choice for best clock. |
2 | clock class | A manufacturer or dynamically set value that describes the intended function of the clock. |
3 | accuracy | Represents the expected maximum error |
4 | variance | Represents the inherent precision of the clock. |
5 | Priority 2 | A user-settable value to impose a preference between otherwise-identical clocks. |
6 | identity | A unique manufacturer’s value used as a final tie-breaker. |
7 | Steps removed | Chooses the `shortest’ path when multiple boundary clocks offer different paths to the same Grandmaster. |
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