3Com 3CBLSF26H Switch User Manual


 
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Table 3-19 VLAN Detail Page item description
Item Description
Select a VLAN to
Display
Selects a VLAN to be display its settings
Membership type
Displays the membership type for each VLAN. The possible field values are:
z Untagged: Indicates the interface is an untagged member of the VLAN.
z Tagged: Indicates the interface is a tagged member of a VLAN. VLAN
tagged frames are forwarded by the interface. The frames contain VLAN
information.
z Not A Member: Indicates the interface is not a member of the VLAN
Each port on the switch is capable of passing tagged or untagged frames.
The following describes how the switch will handle tagged and untagged
frames.
z When a port receives a tagged frame with a VLAN ID and the port is a
member (untagged or tagged) of that VLAN, the frame is accepted.
Otherwise if the port is not a member of that VLAN, the frame is
discarded.
z When a port receives an untagged frame and the port is an untagged
member of a VLAN, the frame is accepted and assigned to that VLAN ID.
Otherwise if the port is not an untagged member of any VLAN, the frame
is discarded.
The switch will only forward a frame to ports that are members (tagged or
untagged) of the VLAN to which the frame is assigned. If the port is an
untagged member, the egress frame will be stripped of the VLAN tag and
forwarded as untagged. However, if the port is a tagged member, the egress
frame is forwarded as tagged.
Viewing VLAN Port Details
The VLAN Port Detail Page provides information on VLAN configured ports.
Click Device > VLAN > Port Detail. The VLAN Port Detail Page opens.
Figure 3-27 VLAN Port Detail Page
The VLAN Port Detail Page contains the following information: