Intel Agilex® 7 Hard Processor System Technical Reference Manual

ID 683567
Date 1/11/2024
Public
Document Table of Contents

17.6.8.2.2. VLAN Hash Filtering with a 16-Bit Hash Table

The MAC provides VLAN hash filtering with a 16‑bit hash table. The MAC also supports the inverse matching of the VLAN frames. In inverse matching mode, when the VLAN tag of a frame matches the perfect or hash filter, the packet should be dropped. If the VLAN perfect and VLAN hash match are enabled, a frame is considered as matched if either the VLAN hash or the VLAN perfect filter matches. When inverse match is set, a packet is forwarded only when both perfect and hash filters indicate mismatch.