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ZT8101 Users Guide 113
Using the Web Console
4. Click Apply.
To configure member ports of an 802.1Q VLAN
1. In the left panel, click VLAN Configurations.
2. In the top panel, click IEEE 802.1Q Port Settings.
3. For each port, enable or disable the following:
4. Click Apply.
Link Aggregation
Link aggregation allows several ports to be grouped together so that they can act as a single port.
This is done to either increase the bandwidth of a network connection or to increase fault tolerance.
Link Aggregation is most commonly used to link a bandwidth-intensive network device or devices
—such as a server or server farm—to the backbone of a network.
VLAN Name
Specifies the name of the VLAN for which ports are to be configured. The
name can be up to 32 characters. Once created, the name cannot be
modified.
Membership
Specifies the port’s membership status. Select the appropriate state by
selecting a radial button for each port. Options which aren’t available are
grayed out.
• Untagged—Designates the port as an untagged member of the VLAN.
When an untagged packet is transmitted by the port, the packet header
remains unchanged. When a tagged packet exits the port, the tag is
stripped and the packet is changed to an untagged packet. If the port is
attached to a device that is not IEEE 802.1Q VLAN compliant
(VLAN-tag unaware), then the port should be set to U - Untagged.
• Tagged—Designates the port as a tagged member of the VLAN. When
an untagged packet is transmitted by the port, the packet header is
changed to include the 32-bit tag associated with the PVID (Port VLAN
Identifier). When a tagged packet with a different VID exits the port, the
packet header is unchanged. If the port is attached to a device that is
IEEE 802.1Q VLAN compliant, (VLAN-tag aware), then the port can be
set to Tagged.
• Forbidden—Designates the port as not being a member of the VLAN
and prevents packets tagged with the VLAN’s VID from entering the
port.
• None—Designates the port as not being a member of the VLAN.
Field Description
Field Description
GVRP
Specifies whether the port can dynamically become a member of a VLAN.
This protocol allows the port to share VLAN information with other ports so
that a VLAN can span multiple switches.
Ingress Checking
Specifies whether a port checks the VID of incoming packets against its VID
or PVID. If the two are equal, the port will receive the packet. It the two are
unequal, the port will drop the packet. This is used to limit traffic to a single
VLAN.