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VLANsConfiguration Parameters:
Items
Description
Global VLAN Configuration
Existing VLANs
This field shows the VLANs that are created on the switch. By default only VLAN 1 exists. More
VLANs may be created by using a list syntax where the individual elements are separated by
commas. Ranges are specified with a dash separating the lower and upper bound. This example
will create VLANs 1, 10, 11, 12, 13, 200, and 300: 1,10-13,200,300
Ethertype for custom
S-ports
Specifies the Ethertype/TPID used for Custom S-ports (specified in hexadecimal). The setting is
in force for al ports whose Port Type is set to S-Custom-Port.
Port
This is the logical port number of this row.
Mode
The port mode (default is Access) determines the fundamental behavior of the port in question. A
port can be in one of three modes as described below. Whenever a particular mode is selected
the remaining fields in that row will be either grayed out or made changeable depending on the
mode in question. Grayed out fields show the value that the port will get when the mode is
applied.
Access: Access ports are normally used to connect to end stations. Dynamic features like Voice
VLAN may add the port to more VLANs behind the scenes. Access ports have the following
characteristics:
Member of exactly one VLAN, the Port VLAN (Access VLAN) which by default is 1.
Accepts untagged frames and C-tagged frames.
Discards all frames that are not classified to the Access VLAN
On egress all frames are transmitted untagged.
Trunk: Trunk ports can carry traffic on multiple VLANs simultaneously, and are normally used to
connect to other switches. Trunk ports have the following characteristics:
By default, a trunk port is a member of all existing VLANs. This may be limited by the
use of Allowed VLANs
Unless VLAN Trunking is enabled on the port frames classified to a VLAN that the port is
not a member of will be discarded.
By default, all frames but frames classified to the Port VLAN (a.k.a. Native VLAN) get
tagged on egress. Frames classified to the Port VLAN do not get C-tagged on egress.
Egress tagging can be changed to tag all frames, in which case only tagged frames are
accepted on ingress
VLAN trunking may be enabled.