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54 Intel® Gigabit Ethernet Switch AXXSW1GB User Guide
cannot be designated. Ingress filtering cannot be enabled or disabled on an
access port.
— Trunk — Indicates the interface belongs to VLANs in which all VLANs are
tagged, except for one VLAN that can be untagged.
• PVID — Assigns a VLAN ID to untagged packets. The possible values are 1-4094
except VLAN 4080. VLAN 4095 is defined as per standard and industry practice as
the Discard VLAN. Packets classified to the Discard VLAN are dropped.
• Frame Type — Specifies the packet type accepted on the interface. The possible field
values are:
— Admit All — Both tagged and untagged packets are accepted on the interface.
— Admit Tag Only — Only tagged packets are accepted on the interface.
• Ingress Filtering — Indicates whether ingress filtering is enabled on the interface.
The possible field values are:
— Enable — Enables ingress filtering on the interface. Ingress filtering discards
packets that are defined to VLANs of which the specific port is not a member.
— Disable — Disables ingress filtering on the interface.
• Reserved VLAN — Indicates the VLAN selected by the user to be the reserved
VLAN if not in use by the system.