Hitachi CB 520H A1 User Manual page 60

TagVLAN Function
TagVLAN function has two modes. And the function is enabled by setting
mode to either one. (This function can be set on the "Virtual NIC Assignment"
screen)
• Untagged Port
This setting is for receiving untagged frames from one specified VLAN
group.
A Logical NIC for which "untagged port" is specified receives only frames
from the group with the same VLAN ID number, and these frames do not
include tags. When transferring frames from a Logical NIC specified as an
"untagged port" to an external switch or to a Logical NIC specified as a
"tagged port" in the same VLAN group, the frames are tagged with the
IEEE802.1Q format.
If "untagged" is specified, only one VLAN ID can be specified.
• Tagged Port
With this setting, a NIC receives frames containing IEEE 802.1Q-format
tags and untagged frames that include any of the specified VLAN IDs.
A Logical NIC for which "tagged port" is specified can receive both tagged
frames with the specified VLAN ID and untagged frames. Tagged frames
sent from a Logical NIC with the "tagged port" specification are sent to
the same group as the VLAN ID in the tag, and untagged frames are sent
to groups for which no VLAN has been set.
When frames are transferred to external switches, they are transferred as
they are, with or without tags. When specifying "tagged" for a Logical
NIC, you can set up to 16 VLAN IDs for one Logical NIC. To use more
than 17, set "ALL" to allow all VLAN IDs to be received.
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Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Figure 1-28 Outline of Tagged VLAN Function
LPAR manager Functions