KBC Networks ESML8P-PC2 - Manual (Page 60)

Manual-ESML8P-PC2_Series-Rev1211
Copyright © KBC Networks Ltd.
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802.1Q VLAN interface
• On the 802.1Q Configuration tab, click the Port pull-down menu to select a port you want
to configure within the VLAN.
• Link Type: Three options are available. Click the pull-down menu to select the link type.
- Access Link: A segment which provides the link path for one or more stations to the
VLAN-aware device like switches. An Access Port (untagged port) connecting to the
access link has an untagged VID (also called PVID). After an untagged frame gets into
the access port, the switch inserts a four-byte tag in the frame. The contents of the
last 12-bit of the tag is the untagged VID. When this frame is sent out through any of
the access ports of the same PVID, the switch will remove the tag from the frame to
recover it to what it was. Those ports of the same untagged VID are regarded as the
same VLAN group members.
Note: Because the access port doesn’t have an understanding of tagged frame, the field of
Tagged VID is not available.
- Trunk Link: A segment which provides the link path for one or more VLAN-aware
devices. A Trunk Port connecting to the trunk link has an understanding of tagged
frame, which is used for communications across VLANs. Which frames of the specified
VIDs will be forwarded depends on the values filled in the Tagged VID field. Please
insert a comma between two VIDs.