ZT8101 Intel (CPU), ZT8101 Datasheet - Page 21

• Manufacturer Part Number: ZT8101
• Manufacturer: Intel (CPU)

Specifications of ZT8101

• Lead Free Status / RoHS Status: Supplier Unconfirmed

4.8.1
4.8.2
Intel
®
NetStructure
Static Port-Based VLANs
A port-based VLAN is the easiest type to configure on the switch because you need to specify only
the following:
The complexity of the VLAN configuration is totally hidden. The switch applies the following
rules when it creates the VLAN:
Static IEEE 802.1Q VLANs
A static IEEE 802.1Q VLAN is more complex than a port-based VLAN, but it is also more
flexible. Tagged ports can belong to more than one VLAN. You can assign ports the following
attributes:
You can also enable or disable the following per port for IEEE 802.1Q VLANs:
GVRP must be enabled globally on the switch before individual ports can be enabled.
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VLAN name
Member ports
Tagged frames are discarded. With port-based VLANs, frames are assumed to be untagged, so
that the VLAN members do not receive frames coming from another VLAN.
VLAN ID is assigned using an internal algorithm. The switch allocates the largest free VLAN
ID which is smaller than 4095 (for example, 4094, 4093, 4092).
The member port’s PVID is assigned as the VLAN ID.
A port can only belong to one port-based VLAN.
Port-based VLANs are not included in GVRP advertisement.
Tagged Member Port: When a tagged member port sends a packet, the port changes the
packet header to include the 32-bit tag associated with the PVID (Port VLAN Identifier). If the
port is attached to a device that is IEEE 802.1Q VLAN compliant, (VLAN-tag aware), the port
can be set to tagged.
Untagged Member Port: When an untagged member port receives a tagged packet, the port
strips the tag and changes the packet to an untagged packet. If the port is attached to a device
that is not IEEE 802.1Q VLAN compliant (VLAN-tag unaware), the port should be set to
untagged.
Forbidden Port: When configured as a forbidden port, the port is designated as not being a
member of the VLAN and prevents packets tagged with the VLAN’s VID from entering the
port.
Non-member: This labels the port as not being a member of the VLAN.
GVRP
Ingress Checking
ZT 8101 10/100 Ethernet Switch Technical Product Specification
Layer 2 Switch Features
21