IEEE 802.1Q (sometimes referred to as 1Q or DOT1Q) is a industry standards based implementation of carring traffic for multiple VLANs on a single trunking interface between two Ethernet switches. 802.1Q is for Ethernet networks only. Unlike ISL , 802.1Q does not encapsulate the original Ethernet frame. For Ethernet V2 frames, 802.1Q inserts a new [...]
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