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I dont understand when does the vlan tag is first introduced in the frame.Is the NIC adapter driver or switch that adds the vlan tag? And who sets this 3-bit user Priority Code Point (PCP).

Am_I_Helpful
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Ayush Gupta
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1 Answers1

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It is the ethernet driver that adds a vlan tag into the ethernet frame.PCP value is also set by the ethernet driver.

Ayush Gupta
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