Intel® Stratix® 10 Hard Processor System Technical Reference Manual

ID 683222
Date 11/28/2022
Public

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17.6.8.2.1. VLAN Tag-Based Filtering

In the VLAN tag‑based frame filtering, the MAC compares the VLAN tag of the received frame and provides the VLAN frame status to the application. Based on the programmed mode, the MAC compares the lower 12 bits or all 16 bits of the received VLAN tag to determine the perfect match. If VLAN tag filtering is enabled, the MAC forwards the VLAN‑tagged frames along with VLAN tag match status and drops the VLAN frames that do not match. You can also enable the inverse matching for VLAN frames. In addition, you can enable matching of SVLAN tagged frames along with the default Customer Virtual Local Area Network (C‑VLAN) tagged frames.