Friday, December 1, 2017

DOT1Q VLAN tagging inside a L3 switch

Please settle this debate, it would mean a lot.

Situation:

-Access interface configured with VLAN 5 on a L3 switch. A frame leave the host towards the internet. At what point does the frame get its VLAN tag inserted? Diagram - http://ift.tt/2ABXDxA

Me: Nowhere. The frame does not cross a trunk, there is no need to tag.

Him: VLAN tag is inserted as it transitions from the SVI to the routed port.

Can anyone confirm either case?



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