Welcome to the ZyXEL Networking Glossary - your definitive source for descriptions of networking terms and ZyXEL's product features.
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Protocol Based VLAN
In a switch, protocol based VLANs allow you to group untagged upstream traffic into logical VLANs based on the protocol (Ethernet type). One advantage of using protocol based VLANs is that priority can be assigned to traffic of the same Ethernet type.