In networking when we talk about untagged VLANs, or untagged traffic, we’re referring to ethernet frames that don’t carry any VLAN tag information e.g., traffic that contains no VLAN tag information for a receiving switch port or device to read. In contrast, tagged traffic includes a VLAN tag inside the ethernet frame that can be viewed and read by switches and devices as a way of identifying what VLAN network it belongs to, and then make a forwarding decision based on that information.
Continue readingTagged VLANS vs Untagged VLANS (what’s the difference?)
